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https://github.com/sochix/TLSharp.git
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formatting code (ctrl + k + d)
This commit is contained in:
ahmadali shafiee
parent
d330f9614b
commit
504b63a6d7
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@ -4,27 +4,34 @@ using System.Security.Cryptography;
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namespace TLSharp.Core.MTProto.Crypto
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namespace TLSharp.Core.MTProto.Crypto
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{
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{
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public class AESKeyData {
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public class AESKeyData
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{
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private readonly byte[] key;
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private readonly byte[] key;
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private readonly byte[] iv;
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private readonly byte[] iv;
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public AESKeyData(byte[] key, byte[] iv) {
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public AESKeyData(byte[] key, byte[] iv)
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{
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this.key = key;
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this.key = key;
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this.iv = iv;
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this.iv = iv;
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}
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}
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public byte[] Key {
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public byte[] Key
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{
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get { return key; }
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get { return key; }
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}
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}
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public byte[] Iv {
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public byte[] Iv
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{
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get { return iv; }
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get { return iv; }
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}
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}
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}
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}
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public class AES {
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public class AES
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public static byte[] DecryptWithNonces(byte[] data, byte[] serverNonce, byte[] newNonce) {
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{
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using(SHA1 hash = new SHA1Managed()) {
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public static byte[] DecryptWithNonces(byte[] data, byte[] serverNonce, byte[] newNonce)
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{
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using (SHA1 hash = new SHA1Managed())
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{
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var nonces = new byte[48];
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var nonces = new byte[48];
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newNonce.CopyTo(nonces, 0);
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newNonce.CopyTo(nonces, 0);
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@ -41,7 +48,8 @@ namespace TLSharp.Core.MTProto.Crypto
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byte[] hash3 = hash.ComputeHash(nonces);
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byte[] hash3 = hash.ComputeHash(nonces);
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using (var keyBuffer = new MemoryStream(32))
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using (var keyBuffer = new MemoryStream(32))
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using(var ivBuffer = new MemoryStream(32)) {
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using (var ivBuffer = new MemoryStream(32))
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{
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keyBuffer.Write(hash1, 0, hash1.Length);
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keyBuffer.Write(hash1, 0, hash1.Length);
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keyBuffer.Write(hash2, 0, 12);
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keyBuffer.Write(hash2, 0, 12);
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@ -54,8 +62,10 @@ namespace TLSharp.Core.MTProto.Crypto
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}
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}
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}
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}
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public static AESKeyData GenerateKeyDataFromNonces(byte[] serverNonce, byte[] newNonce) {
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public static AESKeyData GenerateKeyDataFromNonces(byte[] serverNonce, byte[] newNonce)
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using (SHA1 hash = new SHA1Managed()) {
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{
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using (SHA1 hash = new SHA1Managed())
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{
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var nonces = new byte[48];
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var nonces = new byte[48];
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newNonce.CopyTo(nonces, 0);
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newNonce.CopyTo(nonces, 0);
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@ -72,7 +82,8 @@ namespace TLSharp.Core.MTProto.Crypto
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byte[] hash3 = hash.ComputeHash(nonces);
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byte[] hash3 = hash.ComputeHash(nonces);
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using (var keyBuffer = new MemoryStream(32))
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using (var keyBuffer = new MemoryStream(32))
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using (var ivBuffer = new MemoryStream(32)) {
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using (var ivBuffer = new MemoryStream(32))
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{
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keyBuffer.Write(hash1, 0, hash1.Length);
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keyBuffer.Write(hash1, 0, hash1.Length);
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keyBuffer.Write(hash2, 0, 12);
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keyBuffer.Write(hash2, 0, 12);
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@ -85,15 +96,18 @@ namespace TLSharp.Core.MTProto.Crypto
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}
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}
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}
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}
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public static byte[] DecryptAES(AESKeyData key, byte[] ciphertext) {
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public static byte[] DecryptAES(AESKeyData key, byte[] ciphertext)
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{
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return DecryptIGE(ciphertext, key.Key, key.Iv);
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return DecryptIGE(ciphertext, key.Key, key.Iv);
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}
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}
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public static byte[] EncryptAES(AESKeyData key, byte[] plaintext) {
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public static byte[] EncryptAES(AESKeyData key, byte[] plaintext)
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{
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return EncryptIGE(plaintext, key.Key, key.Iv);
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return EncryptIGE(plaintext, key.Key, key.Iv);
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}
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}
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public static byte[] DecryptIGE(byte[] ciphertext, byte[] key, byte[] iv) {
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public static byte[] DecryptIGE(byte[] ciphertext, byte[] key, byte[] iv)
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{
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var iv1 = new byte[iv.Length / 2];
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var iv1 = new byte[iv.Length / 2];
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var iv2 = new byte[iv.Length / 2];
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var iv2 = new byte[iv.Length / 2];
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@ -108,14 +122,17 @@ namespace TLSharp.Core.MTProto.Crypto
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byte[] ciphertextBlock = new byte[16];
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byte[] ciphertextBlock = new byte[16];
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byte[] plaintextBlock = new byte[16];
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byte[] plaintextBlock = new byte[16];
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for(int blockIndex = 0; blockIndex < blocksCount; blockIndex++) {
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for (int blockIndex = 0; blockIndex < blocksCount; blockIndex++)
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for(int i = 0; i < 16; i++) {
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{
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for (int i = 0; i < 16; i++)
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{
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ciphertextBlock[i] = (byte)(ciphertext[blockIndex * 16 + i] ^ iv2[i]);
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ciphertextBlock[i] = (byte)(ciphertext[blockIndex * 16 + i] ^ iv2[i]);
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}
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}
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aes.ProcessBlock(ciphertextBlock, 0, plaintextBlock, 0);
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aes.ProcessBlock(ciphertextBlock, 0, plaintextBlock, 0);
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for(int i = 0; i < 16; i++) {
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for (int i = 0; i < 16; i++)
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{
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plaintextBlock[i] ^= iv1[i];
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plaintextBlock[i] ^= iv1[i];
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}
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}
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@ -128,15 +145,18 @@ namespace TLSharp.Core.MTProto.Crypto
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return plaintext;
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return plaintext;
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}
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}
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public static byte[] EncryptIGE(byte[] originPlaintext, byte[] key, byte[] iv) {
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public static byte[] EncryptIGE(byte[] originPlaintext, byte[] key, byte[] iv)
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{
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byte[] plaintext;
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byte[] plaintext;
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using (MemoryStream plaintextBuffer = new MemoryStream(originPlaintext.Length + 40)) {
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using (MemoryStream plaintextBuffer = new MemoryStream(originPlaintext.Length + 40))
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{
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//using(SHA1 hash = new SHA1Managed()) {
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//using(SHA1 hash = new SHA1Managed()) {
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//byte[] hashsum = hash.ComputeHash(originPlaintext);
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//byte[] hashsum = hash.ComputeHash(originPlaintext);
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//plaintextBuffer.Write(hashsum, 0, hashsum.Length);
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//plaintextBuffer.Write(hashsum, 0, hashsum.Length);
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plaintextBuffer.Write(originPlaintext, 0, originPlaintext.Length);
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plaintextBuffer.Write(originPlaintext, 0, originPlaintext.Length);
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while(plaintextBuffer.Position%16 != 0) {
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while (plaintextBuffer.Position % 16 != 0)
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{
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plaintextBuffer.WriteByte(0); // TODO: random padding
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plaintextBuffer.WriteByte(0); // TODO: random padding
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}
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}
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plaintext = plaintextBuffer.ToArray();
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plaintext = plaintextBuffer.ToArray();
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@ -156,12 +176,14 @@ namespace TLSharp.Core.MTProto.Crypto
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byte[] ciphertextBlock = new byte[16];
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byte[] ciphertextBlock = new byte[16];
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byte[] plaintextBlock = new byte[16];
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byte[] plaintextBlock = new byte[16];
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for(int blockIndex = 0; blockIndex < blocksCount; blockIndex++) {
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for (int blockIndex = 0; blockIndex < blocksCount; blockIndex++)
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{
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Array.Copy(plaintext, 16 * blockIndex, plaintextBlock, 0, 16);
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Array.Copy(plaintext, 16 * blockIndex, plaintextBlock, 0, 16);
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//logger.info("plaintext block: {0} xor {1}", BitConverter.ToString(plaintextBlock).Replace("-", ""), BitConverter.ToString(iv1).Replace("-", ""));
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//logger.info("plaintext block: {0} xor {1}", BitConverter.ToString(plaintextBlock).Replace("-", ""), BitConverter.ToString(iv1).Replace("-", ""));
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for(int i = 0; i < 16; i++) {
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for (int i = 0; i < 16; i++)
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{
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plaintextBlock[i] ^= iv1[i];
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plaintextBlock[i] ^= iv1[i];
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}
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}
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@ -171,7 +193,8 @@ namespace TLSharp.Core.MTProto.Crypto
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//logger.info("encrypted plaintext: {0} xor {1}", BitConverter.ToString(ciphertextBlock).Replace("-", ""), BitConverter.ToString(iv2).Replace("-", ""));
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//logger.info("encrypted plaintext: {0} xor {1}", BitConverter.ToString(ciphertextBlock).Replace("-", ""), BitConverter.ToString(iv2).Replace("-", ""));
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for(int i = 0; i < 16; i++) {
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for (int i = 0; i < 16; i++)
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{
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ciphertextBlock[i] ^= iv2[i];
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ciphertextBlock[i] ^= iv2[i];
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}
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}
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@ -186,7 +209,8 @@ namespace TLSharp.Core.MTProto.Crypto
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return ciphertext;
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return ciphertext;
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}
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}
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public static byte[] XOR(byte[] buffer1, byte[] buffer2) {
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public static byte[] XOR(byte[] buffer1, byte[] buffer2)
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{
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var result = new byte[buffer1.Length];
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var result = new byte[buffer1.Length];
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for (int i = 0; i < buffer1.Length; i++)
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for (int i = 0; i < buffer1.Length; i++)
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result[i] = (byte)(buffer1[i] ^ buffer2[i]);
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result[i] = (byte)(buffer1[i] ^ buffer2[i]);
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// AES engine implementation
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// AES engine implementation
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public class AesEngine {
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public class AesEngine
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{
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// The S box
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// The S box
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private const uint m1 = 0x80808080;
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private const uint m1 = 0x80808080;
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private const uint m2 = 0x7f7f7f7f;
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private const uint m2 = 0x7f7f7f7f;
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private uint[,] WorkingKey;
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private uint[,] WorkingKey;
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private bool forEncryption;
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private bool forEncryption;
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public string AlgorithmName {
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public string AlgorithmName
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{
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get { return "AES"; }
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get { return "AES"; }
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}
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}
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public bool IsPartialBlockOkay {
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public bool IsPartialBlockOkay
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{
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get { return false; }
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get { return false; }
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}
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}
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private uint Shift(
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private uint Shift(
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uint r,
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uint r,
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int shift) {
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int shift)
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{
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return (r >> shift) | (r << (32 - shift));
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return (r >> shift) | (r << (32 - shift));
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}
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}
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private uint FFmulX(
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private uint FFmulX(
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uint x) {
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uint x)
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{
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return ((x & m2) << 1) ^ (((x & m1) >> 7) * m3);
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return ((x & m2) << 1) ^ (((x & m1) >> 7) * m3);
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}
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}
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@ -429,7 +458,8 @@ namespace TLSharp.Core.MTProto.Crypto
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*/
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*/
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private uint Inv_Mcol(
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private uint Inv_Mcol(
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uint x) {
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uint x)
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{
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uint f2 = FFmulX(x);
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uint f2 = FFmulX(x);
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uint f4 = FFmulX(f2);
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uint f4 = FFmulX(f2);
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uint f8 = FFmulX(f4);
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uint f8 = FFmulX(f4);
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@ -439,7 +469,8 @@ namespace TLSharp.Core.MTProto.Crypto
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}
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}
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private uint SubWord(
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private uint SubWord(
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uint x) {
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uint x)
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{
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return S[x & 255]
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return S[x & 255]
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| (((uint)S[(x >> 8) & 255]) << 8)
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| (((uint)S[(x >> 8) & 255]) << 8)
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| (((uint)S[(x >> 16) & 255]) << 16)
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| (((uint)S[(x >> 16) & 255]) << 16)
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@ -455,7 +486,8 @@ namespace TLSharp.Core.MTProto.Crypto
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private uint[,] GenerateWorkingKey(
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private uint[,] GenerateWorkingKey(
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byte[] key,
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byte[] key,
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bool forEncryption) {
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bool forEncryption)
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{
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int KC = key.Length / 4; // key length in words
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int KC = key.Length / 4; // key length in words
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int t;
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int t;
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@ -470,7 +502,8 @@ namespace TLSharp.Core.MTProto.Crypto
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//
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//
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t = 0;
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t = 0;
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for(int i = 0; i < key.Length; t++) {
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for (int i = 0; i < key.Length; t++)
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{
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W[t >> 2, t & 3] = Pack.LE_To_UInt32(key, i);
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W[t >> 2, t & 3] = Pack.LE_To_UInt32(key, i);
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i += 4;
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i += 4;
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}
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}
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@ -480,20 +513,27 @@ namespace TLSharp.Core.MTProto.Crypto
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// calculate new values
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// calculate new values
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//
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//
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int k = (ROUNDS + 1) << 2;
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int k = (ROUNDS + 1) << 2;
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for(int i = KC; (i < k); i++) {
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for (int i = KC; (i < k); i++)
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{
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uint temp = W[(i - 1) >> 2, (i - 1) & 3];
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uint temp = W[(i - 1) >> 2, (i - 1) & 3];
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if((i%KC) == 0) {
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if ((i % KC) == 0)
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{
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temp = SubWord(Shift(temp, 8)) ^ rcon[(i / KC) - 1];
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temp = SubWord(Shift(temp, 8)) ^ rcon[(i / KC) - 1];
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} else if((KC > 6) && ((i%KC) == 4)) {
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}
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else if ((KC > 6) && ((i % KC) == 4))
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{
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temp = SubWord(temp);
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temp = SubWord(temp);
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}
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}
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W[i >> 2, i & 3] = W[(i - KC) >> 2, (i - KC) & 3] ^ temp;
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W[i >> 2, i & 3] = W[(i - KC) >> 2, (i - KC) & 3] ^ temp;
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}
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}
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if(!forEncryption) {
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if (!forEncryption)
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for(int j = 1; j < ROUNDS; j++) {
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{
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for(int i = 0; i < 4; i++) {
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for (int j = 1; j < ROUNDS; j++)
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{
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for (int i = 0; i < 4; i++)
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{
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W[j, i] = Inv_Mcol(W[j, i]);
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W[j, i] = Inv_Mcol(W[j, i]);
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}
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}
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}
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}
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@ -502,33 +542,41 @@ namespace TLSharp.Core.MTProto.Crypto
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return W;
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return W;
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}
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}
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public void Init(bool forEncryption, byte[] key) {
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public void Init(bool forEncryption, byte[] key)
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{
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WorkingKey = GenerateWorkingKey(key, forEncryption);
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WorkingKey = GenerateWorkingKey(key, forEncryption);
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this.forEncryption = forEncryption;
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this.forEncryption = forEncryption;
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}
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}
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public int GetBlockSize() {
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public int GetBlockSize()
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{
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return BLOCK_SIZE;
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return BLOCK_SIZE;
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}
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}
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public int ProcessBlock(byte[] input, int inOff, byte[] output, int outOff) {
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public int ProcessBlock(byte[] input, int inOff, byte[] output, int outOff)
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if(WorkingKey == null) {
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{
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if (WorkingKey == null)
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{
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throw new InvalidOperationException("AES engine not initialised");
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throw new InvalidOperationException("AES engine not initialised");
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}
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}
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if((inOff + (32/2)) > input.Length) {
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if ((inOff + (32 / 2)) > input.Length)
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{
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throw new InvalidOperationException("input buffer too short");
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throw new InvalidOperationException("input buffer too short");
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}
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}
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if((outOff + (32/2)) > output.Length) {
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if ((outOff + (32 / 2)) > output.Length)
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{
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throw new InvalidOperationException("output buffer too short");
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throw new InvalidOperationException("output buffer too short");
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}
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}
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UnPackBlock(input, inOff);
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UnPackBlock(input, inOff);
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if(forEncryption) {
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if (forEncryption)
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{
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EncryptBlock(WorkingKey);
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EncryptBlock(WorkingKey);
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} else {
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}
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else {
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DecryptBlock(WorkingKey);
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DecryptBlock(WorkingKey);
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}
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}
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@ -537,12 +585,14 @@ namespace TLSharp.Core.MTProto.Crypto
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return BLOCK_SIZE;
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return BLOCK_SIZE;
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}
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}
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public void Reset() {
|
public void Reset()
|
||||||
|
{
|
||||||
}
|
}
|
||||||
|
|
||||||
private void UnPackBlock(
|
private void UnPackBlock(
|
||||||
byte[] bytes,
|
byte[] bytes,
|
||||||
int off) {
|
int off)
|
||||||
|
{
|
||||||
C0 = Pack.LE_To_UInt32(bytes, off);
|
C0 = Pack.LE_To_UInt32(bytes, off);
|
||||||
C1 = Pack.LE_To_UInt32(bytes, off + 4);
|
C1 = Pack.LE_To_UInt32(bytes, off + 4);
|
||||||
C2 = Pack.LE_To_UInt32(bytes, off + 8);
|
C2 = Pack.LE_To_UInt32(bytes, off + 8);
|
||||||
|
|
@ -551,7 +601,8 @@ namespace TLSharp.Core.MTProto.Crypto
|
||||||
|
|
||||||
private void PackBlock(
|
private void PackBlock(
|
||||||
byte[] bytes,
|
byte[] bytes,
|
||||||
int off) {
|
int off)
|
||||||
|
{
|
||||||
Pack.UInt32_To_LE(C0, bytes, off);
|
Pack.UInt32_To_LE(C0, bytes, off);
|
||||||
Pack.UInt32_To_LE(C1, bytes, off + 4);
|
Pack.UInt32_To_LE(C1, bytes, off + 4);
|
||||||
Pack.UInt32_To_LE(C2, bytes, off + 8);
|
Pack.UInt32_To_LE(C2, bytes, off + 8);
|
||||||
|
|
@ -559,7 +610,8 @@ namespace TLSharp.Core.MTProto.Crypto
|
||||||
}
|
}
|
||||||
|
|
||||||
private void EncryptBlock(
|
private void EncryptBlock(
|
||||||
uint[,] KW) {
|
uint[,] KW)
|
||||||
|
{
|
||||||
uint r, r0, r1, r2, r3;
|
uint r, r0, r1, r2, r3;
|
||||||
|
|
||||||
C0 ^= KW[0, 0];
|
C0 ^= KW[0, 0];
|
||||||
|
|
@ -567,7 +619,8 @@ namespace TLSharp.Core.MTProto.Crypto
|
||||||
C2 ^= KW[0, 2];
|
C2 ^= KW[0, 2];
|
||||||
C3 ^= KW[0, 3];
|
C3 ^= KW[0, 3];
|
||||||
|
|
||||||
for(r = 1; r < ROUNDS - 1;) {
|
for (r = 1; r < ROUNDS - 1;)
|
||||||
|
{
|
||||||
r0 = T0[C0 & 255] ^ Shift(T0[(C1 >> 8) & 255], 24) ^ Shift(T0[(C2 >> 16) & 255], 16) ^
|
r0 = T0[C0 & 255] ^ Shift(T0[(C1 >> 8) & 255], 24) ^ Shift(T0[(C2 >> 16) & 255], 16) ^
|
||||||
Shift(T0[(C3 >> 24) & 255], 8) ^ KW[r, 0];
|
Shift(T0[(C3 >> 24) & 255], 8) ^ KW[r, 0];
|
||||||
r1 = T0[C1 & 255] ^ Shift(T0[(C2 >> 8) & 255], 24) ^ Shift(T0[(C3 >> 16) & 255], 16) ^
|
r1 = T0[C1 & 255] ^ Shift(T0[(C2 >> 8) & 255], 24) ^ Shift(T0[(C3 >> 16) & 255], 16) ^
|
||||||
|
|
@ -608,7 +661,8 @@ namespace TLSharp.Core.MTProto.Crypto
|
||||||
}
|
}
|
||||||
|
|
||||||
private void DecryptBlock(
|
private void DecryptBlock(
|
||||||
uint[,] KW) {
|
uint[,] KW)
|
||||||
|
{
|
||||||
int r;
|
int r;
|
||||||
uint r0, r1, r2, r3;
|
uint r0, r1, r2, r3;
|
||||||
|
|
||||||
|
|
@ -617,7 +671,8 @@ namespace TLSharp.Core.MTProto.Crypto
|
||||||
C2 ^= KW[ROUNDS, 2];
|
C2 ^= KW[ROUNDS, 2];
|
||||||
C3 ^= KW[ROUNDS, 3];
|
C3 ^= KW[ROUNDS, 3];
|
||||||
|
|
||||||
for(r = ROUNDS - 1; r > 1;) {
|
for (r = ROUNDS - 1; r > 1;)
|
||||||
|
{
|
||||||
r0 = Tinv0[C0 & 255] ^ Shift(Tinv0[(C3 >> 8) & 255], 24) ^ Shift(Tinv0[(C2 >> 16) & 255], 16) ^
|
r0 = Tinv0[C0 & 255] ^ Shift(Tinv0[(C3 >> 8) & 255], 24) ^ Shift(Tinv0[(C2 >> 16) & 255], 16) ^
|
||||||
Shift(Tinv0[(C1 >> 24) & 255], 8) ^ KW[r, 0];
|
Shift(Tinv0[(C1 >> 24) & 255], 8) ^ KW[r, 0];
|
||||||
r1 = Tinv0[C1 & 255] ^ Shift(Tinv0[(C0 >> 8) & 255], 24) ^ Shift(Tinv0[(C3 >> 16) & 255], 16) ^
|
r1 = Tinv0[C1 & 255] ^ Shift(Tinv0[(C0 >> 8) & 255], 24) ^ Shift(Tinv0[(C3 >> 16) & 255], 16) ^
|
||||||
|
|
@ -659,25 +714,30 @@ namespace TLSharp.Core.MTProto.Crypto
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
internal sealed class Pack {
|
internal sealed class Pack
|
||||||
private Pack() {
|
{
|
||||||
|
private Pack()
|
||||||
|
{
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static void UInt32_To_BE(uint n, byte[] bs) {
|
internal static void UInt32_To_BE(uint n, byte[] bs)
|
||||||
|
{
|
||||||
bs[0] = (byte)(n >> 24);
|
bs[0] = (byte)(n >> 24);
|
||||||
bs[1] = (byte)(n >> 16);
|
bs[1] = (byte)(n >> 16);
|
||||||
bs[2] = (byte)(n >> 8);
|
bs[2] = (byte)(n >> 8);
|
||||||
bs[3] = (byte)(n);
|
bs[3] = (byte)(n);
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static void UInt32_To_BE(uint n, byte[] bs, int off) {
|
internal static void UInt32_To_BE(uint n, byte[] bs, int off)
|
||||||
|
{
|
||||||
bs[off] = (byte)(n >> 24);
|
bs[off] = (byte)(n >> 24);
|
||||||
bs[++off] = (byte)(n >> 16);
|
bs[++off] = (byte)(n >> 16);
|
||||||
bs[++off] = (byte)(n >> 8);
|
bs[++off] = (byte)(n >> 8);
|
||||||
bs[++off] = (byte)(n);
|
bs[++off] = (byte)(n);
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static uint BE_To_UInt32(byte[] bs) {
|
internal static uint BE_To_UInt32(byte[] bs)
|
||||||
|
{
|
||||||
uint n = (uint)bs[0] << 24;
|
uint n = (uint)bs[0] << 24;
|
||||||
n |= (uint)bs[1] << 16;
|
n |= (uint)bs[1] << 16;
|
||||||
n |= (uint)bs[2] << 8;
|
n |= (uint)bs[2] << 8;
|
||||||
|
|
@ -685,7 +745,8 @@ namespace TLSharp.Core.MTProto.Crypto
|
||||||
return n;
|
return n;
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static uint BE_To_UInt32(byte[] bs, int off) {
|
internal static uint BE_To_UInt32(byte[] bs, int off)
|
||||||
|
{
|
||||||
uint n = (uint)bs[off] << 24;
|
uint n = (uint)bs[off] << 24;
|
||||||
n |= (uint)bs[++off] << 16;
|
n |= (uint)bs[++off] << 16;
|
||||||
n |= (uint)bs[++off] << 8;
|
n |= (uint)bs[++off] << 8;
|
||||||
|
|
@ -693,43 +754,50 @@ namespace TLSharp.Core.MTProto.Crypto
|
||||||
return n;
|
return n;
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static ulong BE_To_UInt64(byte[] bs) {
|
internal static ulong BE_To_UInt64(byte[] bs)
|
||||||
|
{
|
||||||
uint hi = BE_To_UInt32(bs);
|
uint hi = BE_To_UInt32(bs);
|
||||||
uint lo = BE_To_UInt32(bs, 4);
|
uint lo = BE_To_UInt32(bs, 4);
|
||||||
return ((ulong)hi << 32) | lo;
|
return ((ulong)hi << 32) | lo;
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static ulong BE_To_UInt64(byte[] bs, int off) {
|
internal static ulong BE_To_UInt64(byte[] bs, int off)
|
||||||
|
{
|
||||||
uint hi = BE_To_UInt32(bs, off);
|
uint hi = BE_To_UInt32(bs, off);
|
||||||
uint lo = BE_To_UInt32(bs, off + 4);
|
uint lo = BE_To_UInt32(bs, off + 4);
|
||||||
return ((ulong)hi << 32) | lo;
|
return ((ulong)hi << 32) | lo;
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static void UInt64_To_BE(ulong n, byte[] bs) {
|
internal static void UInt64_To_BE(ulong n, byte[] bs)
|
||||||
|
{
|
||||||
UInt32_To_BE((uint)(n >> 32), bs);
|
UInt32_To_BE((uint)(n >> 32), bs);
|
||||||
UInt32_To_BE((uint)(n), bs, 4);
|
UInt32_To_BE((uint)(n), bs, 4);
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static void UInt64_To_BE(ulong n, byte[] bs, int off) {
|
internal static void UInt64_To_BE(ulong n, byte[] bs, int off)
|
||||||
|
{
|
||||||
UInt32_To_BE((uint)(n >> 32), bs, off);
|
UInt32_To_BE((uint)(n >> 32), bs, off);
|
||||||
UInt32_To_BE((uint)(n), bs, off + 4);
|
UInt32_To_BE((uint)(n), bs, off + 4);
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static void UInt32_To_LE(uint n, byte[] bs) {
|
internal static void UInt32_To_LE(uint n, byte[] bs)
|
||||||
|
{
|
||||||
bs[0] = (byte)(n);
|
bs[0] = (byte)(n);
|
||||||
bs[1] = (byte)(n >> 8);
|
bs[1] = (byte)(n >> 8);
|
||||||
bs[2] = (byte)(n >> 16);
|
bs[2] = (byte)(n >> 16);
|
||||||
bs[3] = (byte)(n >> 24);
|
bs[3] = (byte)(n >> 24);
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static void UInt32_To_LE(uint n, byte[] bs, int off) {
|
internal static void UInt32_To_LE(uint n, byte[] bs, int off)
|
||||||
|
{
|
||||||
bs[off] = (byte)(n);
|
bs[off] = (byte)(n);
|
||||||
bs[++off] = (byte)(n >> 8);
|
bs[++off] = (byte)(n >> 8);
|
||||||
bs[++off] = (byte)(n >> 16);
|
bs[++off] = (byte)(n >> 16);
|
||||||
bs[++off] = (byte)(n >> 24);
|
bs[++off] = (byte)(n >> 24);
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static uint LE_To_UInt32(byte[] bs) {
|
internal static uint LE_To_UInt32(byte[] bs)
|
||||||
|
{
|
||||||
uint n = bs[0];
|
uint n = bs[0];
|
||||||
n |= (uint)bs[1] << 8;
|
n |= (uint)bs[1] << 8;
|
||||||
n |= (uint)bs[2] << 16;
|
n |= (uint)bs[2] << 16;
|
||||||
|
|
@ -737,7 +805,8 @@ namespace TLSharp.Core.MTProto.Crypto
|
||||||
return n;
|
return n;
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static uint LE_To_UInt32(byte[] bs, int off) {
|
internal static uint LE_To_UInt32(byte[] bs, int off)
|
||||||
|
{
|
||||||
uint n = bs[off];
|
uint n = bs[off];
|
||||||
n |= (uint)bs[++off] << 8;
|
n |= (uint)bs[++off] << 8;
|
||||||
n |= (uint)bs[++off] << 16;
|
n |= (uint)bs[++off] << 16;
|
||||||
|
|
@ -745,24 +814,28 @@ namespace TLSharp.Core.MTProto.Crypto
|
||||||
return n;
|
return n;
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static ulong LE_To_UInt64(byte[] bs) {
|
internal static ulong LE_To_UInt64(byte[] bs)
|
||||||
|
{
|
||||||
uint lo = LE_To_UInt32(bs);
|
uint lo = LE_To_UInt32(bs);
|
||||||
uint hi = LE_To_UInt32(bs, 4);
|
uint hi = LE_To_UInt32(bs, 4);
|
||||||
return ((ulong)hi << 32) | lo;
|
return ((ulong)hi << 32) | lo;
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static ulong LE_To_UInt64(byte[] bs, int off) {
|
internal static ulong LE_To_UInt64(byte[] bs, int off)
|
||||||
|
{
|
||||||
uint lo = LE_To_UInt32(bs, off);
|
uint lo = LE_To_UInt32(bs, off);
|
||||||
uint hi = LE_To_UInt32(bs, off + 4);
|
uint hi = LE_To_UInt32(bs, off + 4);
|
||||||
return ((ulong)hi << 32) | lo;
|
return ((ulong)hi << 32) | lo;
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static void UInt64_To_LE(ulong n, byte[] bs) {
|
internal static void UInt64_To_LE(ulong n, byte[] bs)
|
||||||
|
{
|
||||||
UInt32_To_LE((uint)(n), bs);
|
UInt32_To_LE((uint)(n), bs);
|
||||||
UInt32_To_LE((uint)(n >> 32), bs, 4);
|
UInt32_To_LE((uint)(n >> 32), bs, 4);
|
||||||
}
|
}
|
||||||
|
|
||||||
internal static void UInt64_To_LE(ulong n, byte[] bs, int off) {
|
internal static void UInt64_To_LE(ulong n, byte[] bs, int off)
|
||||||
|
{
|
||||||
UInt32_To_LE((uint)(n), bs, off);
|
UInt32_To_LE((uint)(n), bs, off);
|
||||||
UInt32_To_LE((uint)(n >> 32), bs, off + 4);
|
UInt32_To_LE((uint)(n >> 32), bs, off + 4);
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -2,16 +2,22 @@
|
||||||
using System.IO;
|
using System.IO;
|
||||||
using System.Security.Cryptography;
|
using System.Security.Cryptography;
|
||||||
|
|
||||||
namespace TLSharp.Core.MTProto.Crypto {
|
namespace TLSharp.Core.MTProto.Crypto
|
||||||
public class AuthKey {
|
{
|
||||||
|
public class AuthKey
|
||||||
|
{
|
||||||
private byte[] key;
|
private byte[] key;
|
||||||
private ulong keyId;
|
private ulong keyId;
|
||||||
private ulong auxHash;
|
private ulong auxHash;
|
||||||
public AuthKey(BigInteger gab) {
|
public AuthKey(BigInteger gab)
|
||||||
|
{
|
||||||
key = gab.ToByteArrayUnsigned();
|
key = gab.ToByteArrayUnsigned();
|
||||||
using(SHA1 hash = new SHA1Managed()) {
|
using (SHA1 hash = new SHA1Managed())
|
||||||
using(MemoryStream hashStream = new MemoryStream(hash.ComputeHash(key), false)) {
|
{
|
||||||
using(BinaryReader hashReader = new BinaryReader(hashStream)) {
|
using (MemoryStream hashStream = new MemoryStream(hash.ComputeHash(key), false))
|
||||||
|
{
|
||||||
|
using (BinaryReader hashReader = new BinaryReader(hashStream))
|
||||||
|
{
|
||||||
auxHash = hashReader.ReadUInt64();
|
auxHash = hashReader.ReadUInt64();
|
||||||
hashReader.ReadBytes(4);
|
hashReader.ReadBytes(4);
|
||||||
keyId = hashReader.ReadUInt64();
|
keyId = hashReader.ReadUInt64();
|
||||||
|
|
@ -20,11 +26,15 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public AuthKey(byte[] data) {
|
public AuthKey(byte[] data)
|
||||||
|
{
|
||||||
key = data;
|
key = data;
|
||||||
using (SHA1 hash = new SHA1Managed()) {
|
using (SHA1 hash = new SHA1Managed())
|
||||||
using (MemoryStream hashStream = new MemoryStream(hash.ComputeHash(key), false)) {
|
{
|
||||||
using (BinaryReader hashReader = new BinaryReader(hashStream)) {
|
using (MemoryStream hashStream = new MemoryStream(hash.ComputeHash(key), false))
|
||||||
|
{
|
||||||
|
using (BinaryReader hashReader = new BinaryReader(hashStream))
|
||||||
|
{
|
||||||
auxHash = hashReader.ReadUInt64();
|
auxHash = hashReader.ReadUInt64();
|
||||||
hashReader.ReadBytes(4);
|
hashReader.ReadBytes(4);
|
||||||
keyId = hashReader.ReadUInt64();
|
keyId = hashReader.ReadUInt64();
|
||||||
|
|
@ -33,13 +43,17 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public byte[] CalcNewNonceHash(byte[] newNonce, int number) {
|
public byte[] CalcNewNonceHash(byte[] newNonce, int number)
|
||||||
using(MemoryStream buffer = new MemoryStream(100)) {
|
{
|
||||||
using(BinaryWriter bufferWriter = new BinaryWriter(buffer)) {
|
using (MemoryStream buffer = new MemoryStream(100))
|
||||||
|
{
|
||||||
|
using (BinaryWriter bufferWriter = new BinaryWriter(buffer))
|
||||||
|
{
|
||||||
bufferWriter.Write(newNonce);
|
bufferWriter.Write(newNonce);
|
||||||
bufferWriter.Write((byte)number);
|
bufferWriter.Write((byte)number);
|
||||||
bufferWriter.Write(auxHash);
|
bufferWriter.Write(auxHash);
|
||||||
using(SHA1 sha1 = new SHA1Managed()) {
|
using (SHA1 sha1 = new SHA1Managed())
|
||||||
|
{
|
||||||
byte[] hash = sha1.ComputeHash(buffer.GetBuffer(), 0, (int)buffer.Position);
|
byte[] hash = sha1.ComputeHash(buffer.GetBuffer(), 0, (int)buffer.Position);
|
||||||
byte[] newNonceHash = new byte[16];
|
byte[] newNonceHash = new byte[16];
|
||||||
Array.Copy(hash, 4, newNonceHash, 0, 16);
|
Array.Copy(hash, 4, newNonceHash, 0, 16);
|
||||||
|
|
@ -49,19 +63,24 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public byte[] Data {
|
public byte[] Data
|
||||||
get {
|
{
|
||||||
|
get
|
||||||
|
{
|
||||||
return key;
|
return key;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public ulong Id {
|
public ulong Id
|
||||||
get {
|
{
|
||||||
|
get
|
||||||
|
{
|
||||||
return keyId;
|
return keyId;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public override string ToString() {
|
public override string ToString()
|
||||||
|
{
|
||||||
return string.Format("(Key: {0}, KeyId: {1}, AuxHash: {2})", key, keyId, auxHash);
|
return string.Format("(Key: {0}, KeyId: {1}, AuxHash: {2})", key, keyId, auxHash);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
||||||
File diff suppressed because it is too large
Load diff
|
|
@ -6,8 +6,10 @@ using System.Text;
|
||||||
using System.Threading.Tasks;
|
using System.Threading.Tasks;
|
||||||
using Ionic.Crc;
|
using Ionic.Crc;
|
||||||
|
|
||||||
namespace TLSharp.Core.MTProto.Crypto {
|
namespace TLSharp.Core.MTProto.Crypto
|
||||||
public class Crc32 : HashAlgorithm {
|
{
|
||||||
|
public class Crc32 : HashAlgorithm
|
||||||
|
{
|
||||||
public const UInt32 DefaultPolynomial = 0xedb88320u;
|
public const UInt32 DefaultPolynomial = 0xedb88320u;
|
||||||
public const UInt32 DefaultSeed = 0xffffffffu;
|
public const UInt32 DefaultSeed = 0xffffffffu;
|
||||||
|
|
||||||
|
|
@ -16,23 +18,27 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
private UInt32[] table;
|
private UInt32[] table;
|
||||||
private static UInt32[] defaultTable;
|
private static UInt32[] defaultTable;
|
||||||
|
|
||||||
public Crc32() {
|
public Crc32()
|
||||||
|
{
|
||||||
table = InitializeTable(DefaultPolynomial);
|
table = InitializeTable(DefaultPolynomial);
|
||||||
seed = DefaultSeed;
|
seed = DefaultSeed;
|
||||||
hash = seed;
|
hash = seed;
|
||||||
}
|
}
|
||||||
|
|
||||||
public Crc32(UInt32 polynomial, UInt32 seed) {
|
public Crc32(UInt32 polynomial, UInt32 seed)
|
||||||
|
{
|
||||||
table = InitializeTable(polynomial);
|
table = InitializeTable(polynomial);
|
||||||
this.seed = seed;
|
this.seed = seed;
|
||||||
hash = seed;
|
hash = seed;
|
||||||
}
|
}
|
||||||
|
|
||||||
public override void Initialize() {
|
public override void Initialize()
|
||||||
|
{
|
||||||
hash = seed;
|
hash = seed;
|
||||||
}
|
}
|
||||||
|
|
||||||
protected override void HashCore(byte[] buffer, int start, int length) {
|
protected override void HashCore(byte[] buffer, int start, int length)
|
||||||
|
{
|
||||||
hash = CalculateHash(table, hash, buffer, start, length);
|
hash = CalculateHash(table, hash, buffer, start, length);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
@ -40,34 +46,41 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
/// Возвращает хеш в BigEndian
|
/// Возвращает хеш в BigEndian
|
||||||
/// </summary>
|
/// </summary>
|
||||||
/// <returns></returns>
|
/// <returns></returns>
|
||||||
protected override byte[] HashFinal() {
|
protected override byte[] HashFinal()
|
||||||
|
{
|
||||||
byte[] hashBuffer = UInt32ToBigEndianBytes(~hash);
|
byte[] hashBuffer = UInt32ToBigEndianBytes(~hash);
|
||||||
this.HashValue = hashBuffer;
|
this.HashValue = hashBuffer;
|
||||||
return hashBuffer;
|
return hashBuffer;
|
||||||
}
|
}
|
||||||
|
|
||||||
public override int HashSize {
|
public override int HashSize
|
||||||
|
{
|
||||||
get { return 32; }
|
get { return 32; }
|
||||||
}
|
}
|
||||||
|
|
||||||
public static UInt32 Compute(byte[] buffer) {
|
public static UInt32 Compute(byte[] buffer)
|
||||||
|
{
|
||||||
return ~CalculateHash(InitializeTable(DefaultPolynomial), DefaultSeed, buffer, 0, buffer.Length);
|
return ~CalculateHash(InitializeTable(DefaultPolynomial), DefaultSeed, buffer, 0, buffer.Length);
|
||||||
}
|
}
|
||||||
|
|
||||||
public static UInt32 Compute(UInt32 seed, byte[] buffer) {
|
public static UInt32 Compute(UInt32 seed, byte[] buffer)
|
||||||
|
{
|
||||||
return ~CalculateHash(InitializeTable(DefaultPolynomial), seed, buffer, 0, buffer.Length);
|
return ~CalculateHash(InitializeTable(DefaultPolynomial), seed, buffer, 0, buffer.Length);
|
||||||
}
|
}
|
||||||
|
|
||||||
public static UInt32 Compute(UInt32 polynomial, UInt32 seed, byte[] buffer) {
|
public static UInt32 Compute(UInt32 polynomial, UInt32 seed, byte[] buffer)
|
||||||
|
{
|
||||||
return ~CalculateHash(InitializeTable(polynomial), seed, buffer, 0, buffer.Length);
|
return ~CalculateHash(InitializeTable(polynomial), seed, buffer, 0, buffer.Length);
|
||||||
}
|
}
|
||||||
|
|
||||||
private static UInt32[] InitializeTable(UInt32 polynomial) {
|
private static UInt32[] InitializeTable(UInt32 polynomial)
|
||||||
|
{
|
||||||
if (polynomial == DefaultPolynomial && defaultTable != null)
|
if (polynomial == DefaultPolynomial && defaultTable != null)
|
||||||
return defaultTable;
|
return defaultTable;
|
||||||
|
|
||||||
UInt32[] createTable = new UInt32[256];
|
UInt32[] createTable = new UInt32[256];
|
||||||
for (int i = 0; i < 256; i++) {
|
for (int i = 0; i < 256; i++)
|
||||||
|
{
|
||||||
UInt32 entry = (UInt32)i;
|
UInt32 entry = (UInt32)i;
|
||||||
for (int j = 0; j < 8; j++)
|
for (int j = 0; j < 8; j++)
|
||||||
if ((entry & 1) == 1)
|
if ((entry & 1) == 1)
|
||||||
|
|
@ -83,16 +96,19 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
return createTable;
|
return createTable;
|
||||||
}
|
}
|
||||||
|
|
||||||
private static UInt32 CalculateHash(UInt32[] table, UInt32 seed, byte[] buffer, int start, int size) {
|
private static UInt32 CalculateHash(UInt32[] table, UInt32 seed, byte[] buffer, int start, int size)
|
||||||
|
{
|
||||||
UInt32 crc = seed;
|
UInt32 crc = seed;
|
||||||
for (int i = start; i < size; i++)
|
for (int i = start; i < size; i++)
|
||||||
unchecked {
|
unchecked
|
||||||
|
{
|
||||||
crc = (crc >> 8) ^ table[buffer[i] ^ crc & 0xff];
|
crc = (crc >> 8) ^ table[buffer[i] ^ crc & 0xff];
|
||||||
}
|
}
|
||||||
return crc;
|
return crc;
|
||||||
}
|
}
|
||||||
|
|
||||||
private byte[] UInt32ToBigEndianBytes(UInt32 x) {
|
private byte[] UInt32ToBigEndianBytes(UInt32 x)
|
||||||
|
{
|
||||||
return new byte[] {
|
return new byte[] {
|
||||||
(byte)((x >> 24) & 0xff),
|
(byte)((x >> 24) & 0xff),
|
||||||
(byte)((x >> 16) & 0xff),
|
(byte)((x >> 16) & 0xff),
|
||||||
|
|
|
||||||
|
|
@ -1,55 +1,72 @@
|
||||||
using System;
|
using System;
|
||||||
|
|
||||||
namespace TLSharp.Core.MTProto.Crypto {
|
namespace TLSharp.Core.MTProto.Crypto
|
||||||
public class FactorizedPair {
|
{
|
||||||
|
public class FactorizedPair
|
||||||
|
{
|
||||||
private readonly BigInteger p;
|
private readonly BigInteger p;
|
||||||
private readonly BigInteger q;
|
private readonly BigInteger q;
|
||||||
|
|
||||||
public FactorizedPair(BigInteger p, BigInteger q) {
|
public FactorizedPair(BigInteger p, BigInteger q)
|
||||||
|
{
|
||||||
this.p = p;
|
this.p = p;
|
||||||
this.q = q;
|
this.q = q;
|
||||||
}
|
}
|
||||||
|
|
||||||
public FactorizedPair(long p, long q) {
|
public FactorizedPair(long p, long q)
|
||||||
|
{
|
||||||
this.p = BigInteger.ValueOf(p);
|
this.p = BigInteger.ValueOf(p);
|
||||||
this.q = BigInteger.ValueOf(q);
|
this.q = BigInteger.ValueOf(q);
|
||||||
}
|
}
|
||||||
|
|
||||||
public BigInteger Min {
|
public BigInteger Min
|
||||||
get {
|
{
|
||||||
|
get
|
||||||
|
{
|
||||||
return p.Min(q);
|
return p.Min(q);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public BigInteger Max {
|
public BigInteger Max
|
||||||
get {
|
{
|
||||||
|
get
|
||||||
|
{
|
||||||
return p.Max(q);
|
return p.Max(q);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public override string ToString() {
|
public override string ToString()
|
||||||
|
{
|
||||||
return string.Format("P: {0}, Q: {1}", p, q);
|
return string.Format("P: {0}, Q: {1}", p, q);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
public class Factorizator {
|
public class Factorizator
|
||||||
|
{
|
||||||
public static Random random = new Random();
|
public static Random random = new Random();
|
||||||
public static long findSmallMultiplierLopatin(long what) {
|
public static long findSmallMultiplierLopatin(long what)
|
||||||
|
{
|
||||||
long g = 0;
|
long g = 0;
|
||||||
for (int i = 0; i < 3; i++) {
|
for (int i = 0; i < 3; i++)
|
||||||
|
{
|
||||||
int q = (random.Next(128) & 15) + 17;
|
int q = (random.Next(128) & 15) + 17;
|
||||||
long x = random.Next(1000000000) + 1, y = x;
|
long x = random.Next(1000000000) + 1, y = x;
|
||||||
int lim = 1 << (i + 18);
|
int lim = 1 << (i + 18);
|
||||||
for (int j = 1; j < lim; j++) {
|
for (int j = 1; j < lim; j++)
|
||||||
|
{
|
||||||
long a = x, b = x, c = q;
|
long a = x, b = x, c = q;
|
||||||
while (b != 0) {
|
while (b != 0)
|
||||||
if ((b & 1) != 0) {
|
{
|
||||||
|
if ((b & 1) != 0)
|
||||||
|
{
|
||||||
c += a;
|
c += a;
|
||||||
if (c >= what) {
|
if (c >= what)
|
||||||
|
{
|
||||||
c -= what;
|
c -= what;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
a += a;
|
a += a;
|
||||||
if (a >= what) {
|
if (a >= what)
|
||||||
|
{
|
||||||
a -= what;
|
a -= what;
|
||||||
}
|
}
|
||||||
b >>= 1;
|
b >>= 1;
|
||||||
|
|
@ -57,14 +74,17 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
x = c;
|
x = c;
|
||||||
long z = x < y ? y - x : x - y;
|
long z = x < y ? y - x : x - y;
|
||||||
g = GCD(z, what);
|
g = GCD(z, what);
|
||||||
if (g != 1) {
|
if (g != 1)
|
||||||
|
{
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
if ((j & (j - 1)) == 0) {
|
if ((j & (j - 1)) == 0)
|
||||||
|
{
|
||||||
y = x;
|
y = x;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
if (g > 1) {
|
if (g > 1)
|
||||||
|
{
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
@ -73,15 +93,20 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
return Math.Min(p, g);
|
return Math.Min(p, g);
|
||||||
}
|
}
|
||||||
|
|
||||||
public static long GCD(long a, long b) {
|
public static long GCD(long a, long b)
|
||||||
while (a != 0 && b != 0) {
|
{
|
||||||
while ((b & 1) == 0) {
|
while (a != 0 && b != 0)
|
||||||
|
{
|
||||||
|
while ((b & 1) == 0)
|
||||||
|
{
|
||||||
b >>= 1;
|
b >>= 1;
|
||||||
}
|
}
|
||||||
while ((a & 1) == 0) {
|
while ((a & 1) == 0)
|
||||||
|
{
|
||||||
a >>= 1;
|
a >>= 1;
|
||||||
}
|
}
|
||||||
if (a > b) {
|
if (a > b)
|
||||||
|
{
|
||||||
a -= b;
|
a -= b;
|
||||||
}
|
}
|
||||||
else {
|
else {
|
||||||
|
|
@ -91,12 +116,15 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
return b == 0 ? a : b;
|
return b == 0 ? a : b;
|
||||||
}
|
}
|
||||||
|
|
||||||
public static FactorizedPair Factorize(BigInteger pq) {
|
public static FactorizedPair Factorize(BigInteger pq)
|
||||||
if(pq.BitLength < 64) {
|
{
|
||||||
|
if (pq.BitLength < 64)
|
||||||
|
{
|
||||||
long pqlong = pq.LongValue;
|
long pqlong = pq.LongValue;
|
||||||
long divisor = findSmallMultiplierLopatin(pqlong);
|
long divisor = findSmallMultiplierLopatin(pqlong);
|
||||||
return new FactorizedPair(BigInteger.ValueOf(divisor), BigInteger.ValueOf(pqlong / divisor));
|
return new FactorizedPair(BigInteger.ValueOf(divisor), BigInteger.ValueOf(pqlong / divisor));
|
||||||
} else {
|
}
|
||||||
|
else {
|
||||||
// TODO: port pollard factorization
|
// TODO: port pollard factorization
|
||||||
throw new InvalidOperationException("pq too long; TODO: port the pollard algo");
|
throw new InvalidOperationException("pq too long; TODO: port the pollard algo");
|
||||||
// logger.error("pq too long; TODO: port the pollard algo");
|
// logger.error("pq too long; TODO: port the pollard algo");
|
||||||
|
|
|
||||||
|
|
@ -1,8 +1,10 @@
|
||||||
using System;
|
using System;
|
||||||
using System.Text;
|
using System.Text;
|
||||||
|
|
||||||
namespace TLSharp.Core.MTProto.Crypto {
|
namespace TLSharp.Core.MTProto.Crypto
|
||||||
public interface IDigest {
|
{
|
||||||
|
public interface IDigest
|
||||||
|
{
|
||||||
/**
|
/**
|
||||||
* return the algorithm name
|
* return the algorithm name
|
||||||
*
|
*
|
||||||
|
|
@ -55,13 +57,16 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
void Reset();
|
void Reset();
|
||||||
}
|
}
|
||||||
|
|
||||||
public class MD5 {
|
public class MD5
|
||||||
|
{
|
||||||
|
|
||||||
public static string GetMd5String(string data) {
|
public static string GetMd5String(string data)
|
||||||
|
{
|
||||||
return BitConverter.ToString(GetMd5Bytes(Encoding.UTF8.GetBytes(data))).Replace("-", "").ToLower();
|
return BitConverter.ToString(GetMd5Bytes(Encoding.UTF8.GetBytes(data))).Replace("-", "").ToLower();
|
||||||
}
|
}
|
||||||
|
|
||||||
public static byte[] GetMd5Bytes(byte[] data) {
|
public static byte[] GetMd5Bytes(byte[] data)
|
||||||
|
{
|
||||||
MD5Digest digest = new MD5Digest();
|
MD5Digest digest = new MD5Digest();
|
||||||
digest.BlockUpdate(data, 0, data.Length);
|
digest.BlockUpdate(data, 0, data.Length);
|
||||||
byte[] hash = new byte[16];
|
byte[] hash = new byte[16];
|
||||||
|
|
@ -72,15 +77,18 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
|
|
||||||
private MD5Digest digest = new MD5Digest();
|
private MD5Digest digest = new MD5Digest();
|
||||||
|
|
||||||
public void Update(byte[] chunk) {
|
public void Update(byte[] chunk)
|
||||||
|
{
|
||||||
digest.BlockUpdate(chunk, 0, chunk.Length);
|
digest.BlockUpdate(chunk, 0, chunk.Length);
|
||||||
}
|
}
|
||||||
|
|
||||||
public void Update(byte[] chunk, int offset, int limit) {
|
public void Update(byte[] chunk, int offset, int limit)
|
||||||
|
{
|
||||||
digest.BlockUpdate(chunk, offset, limit);
|
digest.BlockUpdate(chunk, offset, limit);
|
||||||
}
|
}
|
||||||
|
|
||||||
public string FinalString() {
|
public string FinalString()
|
||||||
|
{
|
||||||
byte[] hash = new byte[16];
|
byte[] hash = new byte[16];
|
||||||
digest.DoFinal(hash, 0);
|
digest.DoFinal(hash, 0);
|
||||||
return BitConverter.ToString(hash).Replace("-", "").ToLower();
|
return BitConverter.ToString(hash).Replace("-", "").ToLower();
|
||||||
|
|
@ -88,7 +96,8 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
}
|
}
|
||||||
|
|
||||||
public abstract class GeneralDigest
|
public abstract class GeneralDigest
|
||||||
: IDigest {
|
: IDigest
|
||||||
|
{
|
||||||
private const int BYTE_LENGTH = 64;
|
private const int BYTE_LENGTH = 64;
|
||||||
|
|
||||||
private readonly byte[] xBuf;
|
private readonly byte[] xBuf;
|
||||||
|
|
@ -96,11 +105,13 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
private long byteCount;
|
private long byteCount;
|
||||||
private int xBufOff;
|
private int xBufOff;
|
||||||
|
|
||||||
internal GeneralDigest() {
|
internal GeneralDigest()
|
||||||
|
{
|
||||||
xBuf = new byte[4];
|
xBuf = new byte[4];
|
||||||
}
|
}
|
||||||
|
|
||||||
internal GeneralDigest(GeneralDigest t) {
|
internal GeneralDigest(GeneralDigest t)
|
||||||
|
{
|
||||||
xBuf = new byte[t.xBuf.Length];
|
xBuf = new byte[t.xBuf.Length];
|
||||||
Array.Copy(t.xBuf, 0, xBuf, 0, t.xBuf.Length);
|
Array.Copy(t.xBuf, 0, xBuf, 0, t.xBuf.Length);
|
||||||
|
|
||||||
|
|
@ -108,10 +119,12 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
byteCount = t.byteCount;
|
byteCount = t.byteCount;
|
||||||
}
|
}
|
||||||
|
|
||||||
public void Update(byte input) {
|
public void Update(byte input)
|
||||||
|
{
|
||||||
xBuf[xBufOff++] = input;
|
xBuf[xBufOff++] = input;
|
||||||
|
|
||||||
if (xBufOff == xBuf.Length) {
|
if (xBufOff == xBuf.Length)
|
||||||
|
{
|
||||||
ProcessWord(xBuf, 0);
|
ProcessWord(xBuf, 0);
|
||||||
xBufOff = 0;
|
xBufOff = 0;
|
||||||
}
|
}
|
||||||
|
|
@ -122,11 +135,13 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
public void BlockUpdate(
|
public void BlockUpdate(
|
||||||
byte[] input,
|
byte[] input,
|
||||||
int inOff,
|
int inOff,
|
||||||
int length) {
|
int length)
|
||||||
|
{
|
||||||
//
|
//
|
||||||
// fill the current word
|
// fill the current word
|
||||||
//
|
//
|
||||||
while ((xBufOff != 0) && (length > 0)) {
|
while ((xBufOff != 0) && (length > 0))
|
||||||
|
{
|
||||||
Update(input[inOff]);
|
Update(input[inOff]);
|
||||||
inOff++;
|
inOff++;
|
||||||
length--;
|
length--;
|
||||||
|
|
@ -135,7 +150,8 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
//
|
//
|
||||||
// process whole words.
|
// process whole words.
|
||||||
//
|
//
|
||||||
while (length > xBuf.Length) {
|
while (length > xBuf.Length)
|
||||||
|
{
|
||||||
ProcessWord(input, inOff);
|
ProcessWord(input, inOff);
|
||||||
|
|
||||||
inOff += xBuf.Length;
|
inOff += xBuf.Length;
|
||||||
|
|
@ -146,7 +162,8 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
//
|
//
|
||||||
// load in the remainder.
|
// load in the remainder.
|
||||||
//
|
//
|
||||||
while (length > 0) {
|
while (length > 0)
|
||||||
|
{
|
||||||
Update(input[inOff]);
|
Update(input[inOff]);
|
||||||
|
|
||||||
inOff++;
|
inOff++;
|
||||||
|
|
@ -154,13 +171,15 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public virtual void Reset() {
|
public virtual void Reset()
|
||||||
|
{
|
||||||
byteCount = 0;
|
byteCount = 0;
|
||||||
xBufOff = 0;
|
xBufOff = 0;
|
||||||
Array.Clear(xBuf, 0, xBuf.Length);
|
Array.Clear(xBuf, 0, xBuf.Length);
|
||||||
}
|
}
|
||||||
|
|
||||||
public int GetByteLength() {
|
public int GetByteLength()
|
||||||
|
{
|
||||||
return BYTE_LENGTH;
|
return BYTE_LENGTH;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
@ -168,7 +187,8 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
public abstract int GetDigestSize();
|
public abstract int GetDigestSize();
|
||||||
public abstract int DoFinal(byte[] output, int outOff);
|
public abstract int DoFinal(byte[] output, int outOff);
|
||||||
|
|
||||||
public void Finish() {
|
public void Finish()
|
||||||
|
{
|
||||||
long bitLength = (byteCount << 3);
|
long bitLength = (byteCount << 3);
|
||||||
|
|
||||||
//
|
//
|
||||||
|
|
@ -187,7 +207,8 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
}
|
}
|
||||||
|
|
||||||
public class MD5Digest
|
public class MD5Digest
|
||||||
: GeneralDigest {
|
: GeneralDigest
|
||||||
|
{
|
||||||
private const int DigestLength = 16;
|
private const int DigestLength = 16;
|
||||||
|
|
||||||
//
|
//
|
||||||
|
|
@ -225,7 +246,8 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
private int H1, H2, H3, H4; // IV's
|
private int H1, H2, H3, H4; // IV's
|
||||||
private int xOff;
|
private int xOff;
|
||||||
|
|
||||||
public MD5Digest() {
|
public MD5Digest()
|
||||||
|
{
|
||||||
Reset();
|
Reset();
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
@ -235,7 +257,8 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
*/
|
*/
|
||||||
|
|
||||||
public MD5Digest(MD5Digest t)
|
public MD5Digest(MD5Digest t)
|
||||||
: base(t) {
|
: base(t)
|
||||||
|
{
|
||||||
H1 = t.H1;
|
H1 = t.H1;
|
||||||
H2 = t.H2;
|
H2 = t.H2;
|
||||||
H3 = t.H3;
|
H3 = t.H3;
|
||||||
|
|
@ -245,28 +268,34 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
xOff = t.xOff;
|
xOff = t.xOff;
|
||||||
}
|
}
|
||||||
|
|
||||||
public override string AlgorithmName {
|
public override string AlgorithmName
|
||||||
|
{
|
||||||
get { return "MD5"; }
|
get { return "MD5"; }
|
||||||
}
|
}
|
||||||
|
|
||||||
public override int GetDigestSize() {
|
public override int GetDigestSize()
|
||||||
|
{
|
||||||
return DigestLength;
|
return DigestLength;
|
||||||
}
|
}
|
||||||
|
|
||||||
internal override void ProcessWord(
|
internal override void ProcessWord(
|
||||||
byte[] input,
|
byte[] input,
|
||||||
int inOff) {
|
int inOff)
|
||||||
|
{
|
||||||
X[xOff++] = (input[inOff] & 0xff) | ((input[inOff + 1] & 0xff) << 8)
|
X[xOff++] = (input[inOff] & 0xff) | ((input[inOff + 1] & 0xff) << 8)
|
||||||
| ((input[inOff + 2] & 0xff) << 16) | ((input[inOff + 3] & 0xff) << 24);
|
| ((input[inOff + 2] & 0xff) << 16) | ((input[inOff + 3] & 0xff) << 24);
|
||||||
|
|
||||||
if (xOff == 16) {
|
if (xOff == 16)
|
||||||
|
{
|
||||||
ProcessBlock();
|
ProcessBlock();
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
internal override void ProcessLength(
|
internal override void ProcessLength(
|
||||||
long bitLength) {
|
long bitLength)
|
||||||
if (xOff > 14) {
|
{
|
||||||
|
if (xOff > 14)
|
||||||
|
{
|
||||||
ProcessBlock();
|
ProcessBlock();
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
@ -277,7 +306,8 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
private void UnpackWord(
|
private void UnpackWord(
|
||||||
int word,
|
int word,
|
||||||
byte[] outBytes,
|
byte[] outBytes,
|
||||||
int outOff) {
|
int outOff)
|
||||||
|
{
|
||||||
outBytes[outOff] = (byte)word;
|
outBytes[outOff] = (byte)word;
|
||||||
outBytes[outOff + 1] = (byte)((uint)word >> 8);
|
outBytes[outOff + 1] = (byte)((uint)word >> 8);
|
||||||
outBytes[outOff + 2] = (byte)((uint)word >> 16);
|
outBytes[outOff + 2] = (byte)((uint)word >> 16);
|
||||||
|
|
@ -286,7 +316,8 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
|
|
||||||
public override int DoFinal(
|
public override int DoFinal(
|
||||||
byte[] output,
|
byte[] output,
|
||||||
int outOff) {
|
int outOff)
|
||||||
|
{
|
||||||
Finish();
|
Finish();
|
||||||
|
|
||||||
UnpackWord(H1, output, outOff);
|
UnpackWord(H1, output, outOff);
|
||||||
|
|
@ -303,7 +334,8 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
* reset the chaining variables to the IV values.
|
* reset the chaining variables to the IV values.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
public override void Reset() {
|
public override void Reset()
|
||||||
|
{
|
||||||
base.Reset();
|
base.Reset();
|
||||||
|
|
||||||
H1 = unchecked(0x67452301);
|
H1 = unchecked(0x67452301);
|
||||||
|
|
@ -313,7 +345,8 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
|
|
||||||
xOff = 0;
|
xOff = 0;
|
||||||
|
|
||||||
for (int i = 0; i != X.Length; i++) {
|
for (int i = 0; i != X.Length; i++)
|
||||||
|
{
|
||||||
X[i] = 0;
|
X[i] = 0;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
@ -324,7 +357,8 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
|
|
||||||
private int RotateLeft(
|
private int RotateLeft(
|
||||||
int x,
|
int x,
|
||||||
int n) {
|
int n)
|
||||||
|
{
|
||||||
return (x << n) | (int)((uint)x >> (32 - n));
|
return (x << n) | (int)((uint)x >> (32 - n));
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
@ -335,32 +369,37 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
private int F(
|
private int F(
|
||||||
int u,
|
int u,
|
||||||
int v,
|
int v,
|
||||||
int w) {
|
int w)
|
||||||
|
{
|
||||||
return (u & v) | (~u & w);
|
return (u & v) | (~u & w);
|
||||||
}
|
}
|
||||||
|
|
||||||
private int G(
|
private int G(
|
||||||
int u,
|
int u,
|
||||||
int v,
|
int v,
|
||||||
int w) {
|
int w)
|
||||||
|
{
|
||||||
return (u & w) | (v & ~w);
|
return (u & w) | (v & ~w);
|
||||||
}
|
}
|
||||||
|
|
||||||
private int H(
|
private int H(
|
||||||
int u,
|
int u,
|
||||||
int v,
|
int v,
|
||||||
int w) {
|
int w)
|
||||||
|
{
|
||||||
return u ^ v ^ w;
|
return u ^ v ^ w;
|
||||||
}
|
}
|
||||||
|
|
||||||
private int K(
|
private int K(
|
||||||
int u,
|
int u,
|
||||||
int v,
|
int v,
|
||||||
int w) {
|
int w)
|
||||||
|
{
|
||||||
return v ^ (u | ~w);
|
return v ^ (u | ~w);
|
||||||
}
|
}
|
||||||
|
|
||||||
internal override void ProcessBlock() {
|
internal override void ProcessBlock()
|
||||||
|
{
|
||||||
int a = H1;
|
int a = H1;
|
||||||
int b = H2;
|
int b = H2;
|
||||||
int c = H3;
|
int c = H3;
|
||||||
|
|
@ -455,7 +494,8 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
// reset the offset and clean out the word buffer.
|
// reset the offset and clean out the word buffer.
|
||||||
//
|
//
|
||||||
xOff = 0;
|
xOff = 0;
|
||||||
for (int i = 0; i != X.Length; i++) {
|
for (int i = 0; i != X.Length; i++)
|
||||||
|
{
|
||||||
X[i] = 0;
|
X[i] = 0;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -3,31 +3,38 @@ using System.Collections.Generic;
|
||||||
using System.IO;
|
using System.IO;
|
||||||
using System.Security.Cryptography;
|
using System.Security.Cryptography;
|
||||||
|
|
||||||
namespace TLSharp.Core.MTProto.Crypto {
|
namespace TLSharp.Core.MTProto.Crypto
|
||||||
|
{
|
||||||
|
|
||||||
class RSAServerKey {
|
class RSAServerKey
|
||||||
|
{
|
||||||
|
|
||||||
private string fingerprint;
|
private string fingerprint;
|
||||||
private BigInteger m;
|
private BigInteger m;
|
||||||
private BigInteger e;
|
private BigInteger e;
|
||||||
|
|
||||||
public RSAServerKey(string fingerprint, BigInteger m, BigInteger e) {
|
public RSAServerKey(string fingerprint, BigInteger m, BigInteger e)
|
||||||
|
{
|
||||||
this.fingerprint = fingerprint;
|
this.fingerprint = fingerprint;
|
||||||
this.m = m;
|
this.m = m;
|
||||||
this.e = e;
|
this.e = e;
|
||||||
}
|
}
|
||||||
|
|
||||||
public byte[] Encrypt(byte[] data, int offset, int length) {
|
public byte[] Encrypt(byte[] data, int offset, int length)
|
||||||
|
{
|
||||||
|
|
||||||
using (MemoryStream buffer = new MemoryStream(255))
|
using (MemoryStream buffer = new MemoryStream(255))
|
||||||
using(BinaryWriter writer = new BinaryWriter(buffer)) {
|
using (BinaryWriter writer = new BinaryWriter(buffer))
|
||||||
using(SHA1 sha1 = new SHA1Managed()) {
|
{
|
||||||
|
using (SHA1 sha1 = new SHA1Managed())
|
||||||
|
{
|
||||||
byte[] hashsum = sha1.ComputeHash(data, offset, length);
|
byte[] hashsum = sha1.ComputeHash(data, offset, length);
|
||||||
writer.Write(hashsum);
|
writer.Write(hashsum);
|
||||||
}
|
}
|
||||||
|
|
||||||
buffer.Write(data, offset, length);
|
buffer.Write(data, offset, length);
|
||||||
if(length < 235) {
|
if (length < 235)
|
||||||
|
{
|
||||||
byte[] padding = new byte[235 - length];
|
byte[] padding = new byte[235 - length];
|
||||||
new Random().NextBytes(padding);
|
new Random().NextBytes(padding);
|
||||||
buffer.Write(padding, 0, padding.Length);
|
buffer.Write(padding, 0, padding.Length);
|
||||||
|
|
@ -35,12 +42,15 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
|
|
||||||
byte[] ciphertext = new BigInteger(1, buffer.ToArray()).ModPow(e, m).ToByteArrayUnsigned();
|
byte[] ciphertext = new BigInteger(1, buffer.ToArray()).ModPow(e, m).ToByteArrayUnsigned();
|
||||||
|
|
||||||
if(ciphertext.Length == 256) {
|
if (ciphertext.Length == 256)
|
||||||
|
{
|
||||||
return ciphertext;
|
return ciphertext;
|
||||||
} else {
|
}
|
||||||
|
else {
|
||||||
byte[] paddedCiphertext = new byte[256];
|
byte[] paddedCiphertext = new byte[256];
|
||||||
int padding = 256 - ciphertext.Length;
|
int padding = 256 - ciphertext.Length;
|
||||||
for(int i = 0; i < padding; i++) {
|
for (int i = 0; i < padding; i++)
|
||||||
|
{
|
||||||
paddedCiphertext[i] = 0;
|
paddedCiphertext[i] = 0;
|
||||||
}
|
}
|
||||||
ciphertext.CopyTo(paddedCiphertext, padding);
|
ciphertext.CopyTo(paddedCiphertext, padding);
|
||||||
|
|
@ -50,14 +60,17 @@ namespace TLSharp.Core.MTProto.Crypto {
|
||||||
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
public class RSA {
|
public class RSA
|
||||||
|
{
|
||||||
private static readonly Dictionary<string, RSAServerKey> serverKeys = new Dictionary<string, RSAServerKey>() {
|
private static readonly Dictionary<string, RSAServerKey> serverKeys = new Dictionary<string, RSAServerKey>() {
|
||||||
{ "216be86c022bb4c3", new RSAServerKey("216be86c022bb4c3", new BigInteger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new BigInteger("010001", 16)) }
|
{ "216be86c022bb4c3", new RSAServerKey("216be86c022bb4c3", new BigInteger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new BigInteger("010001", 16)) }
|
||||||
};
|
};
|
||||||
|
|
||||||
public static byte[] Encrypt(string fingerprint, byte[] data, int offset, int length) {
|
public static byte[] Encrypt(string fingerprint, byte[] data, int offset, int length)
|
||||||
|
{
|
||||||
string fingerprintLower = fingerprint.ToLower();
|
string fingerprintLower = fingerprint.ToLower();
|
||||||
if(!serverKeys.ContainsKey(fingerprintLower)) {
|
if (!serverKeys.ContainsKey(fingerprintLower))
|
||||||
|
{
|
||||||
return null;
|
return null;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -4,73 +4,90 @@ using System.Linq;
|
||||||
using System.Text;
|
using System.Text;
|
||||||
using System.Threading.Tasks;
|
using System.Threading.Tasks;
|
||||||
|
|
||||||
namespace TLSharp.Core.MTProto.Crypto {
|
namespace TLSharp.Core.MTProto.Crypto
|
||||||
public class Salt : IComparable<Salt> {
|
{
|
||||||
|
public class Salt : IComparable<Salt>
|
||||||
|
{
|
||||||
private int validSince;
|
private int validSince;
|
||||||
private int validUntil;
|
private int validUntil;
|
||||||
private ulong salt;
|
private ulong salt;
|
||||||
|
|
||||||
public Salt(int validSince, int validUntil, ulong salt) {
|
public Salt(int validSince, int validUntil, ulong salt)
|
||||||
|
{
|
||||||
this.validSince = validSince;
|
this.validSince = validSince;
|
||||||
this.validUntil = validUntil;
|
this.validUntil = validUntil;
|
||||||
this.salt = salt;
|
this.salt = salt;
|
||||||
}
|
}
|
||||||
|
|
||||||
public int ValidSince {
|
public int ValidSince
|
||||||
|
{
|
||||||
get { return validSince; }
|
get { return validSince; }
|
||||||
}
|
}
|
||||||
|
|
||||||
public int ValidUntil {
|
public int ValidUntil
|
||||||
|
{
|
||||||
get { return validUntil; }
|
get { return validUntil; }
|
||||||
}
|
}
|
||||||
|
|
||||||
public ulong Value {
|
public ulong Value
|
||||||
|
{
|
||||||
get { return salt; }
|
get { return salt; }
|
||||||
}
|
}
|
||||||
|
|
||||||
public int CompareTo(Salt other) {
|
public int CompareTo(Salt other)
|
||||||
|
{
|
||||||
return validUntil.CompareTo(other.validSince);
|
return validUntil.CompareTo(other.validSince);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public class SaltCollection {
|
public class SaltCollection
|
||||||
|
{
|
||||||
private SortedSet<Salt> salts;
|
private SortedSet<Salt> salts;
|
||||||
|
|
||||||
public void Add(Salt salt) {
|
public void Add(Salt salt)
|
||||||
|
{
|
||||||
salts.Add(salt);
|
salts.Add(salt);
|
||||||
}
|
}
|
||||||
|
|
||||||
public int Count {
|
public int Count
|
||||||
get {
|
{
|
||||||
|
get
|
||||||
|
{
|
||||||
return salts.Count;
|
return salts.Count;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
// TODO: get actual salt and other...
|
// TODO: get actual salt and other...
|
||||||
}
|
}
|
||||||
|
|
||||||
public class GetFutureSaltsResponse {
|
public class GetFutureSaltsResponse
|
||||||
|
{
|
||||||
private ulong requestId;
|
private ulong requestId;
|
||||||
private int now;
|
private int now;
|
||||||
private SaltCollection salts;
|
private SaltCollection salts;
|
||||||
|
|
||||||
public GetFutureSaltsResponse(ulong requestId, int now) {
|
public GetFutureSaltsResponse(ulong requestId, int now)
|
||||||
|
{
|
||||||
this.requestId = requestId;
|
this.requestId = requestId;
|
||||||
this.now = now;
|
this.now = now;
|
||||||
}
|
}
|
||||||
|
|
||||||
public void AddSalt(Salt salt) {
|
public void AddSalt(Salt salt)
|
||||||
|
{
|
||||||
salts.Add(salt);
|
salts.Add(salt);
|
||||||
}
|
}
|
||||||
|
|
||||||
public ulong RequestId {
|
public ulong RequestId
|
||||||
|
{
|
||||||
get { return requestId; }
|
get { return requestId; }
|
||||||
}
|
}
|
||||||
|
|
||||||
public int Now {
|
public int Now
|
||||||
|
{
|
||||||
get { return now; }
|
get { return now; }
|
||||||
}
|
}
|
||||||
|
|
||||||
public SaltCollection Salts {
|
public SaltCollection Salts
|
||||||
|
{
|
||||||
get { return salts; }
|
get { return salts; }
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -4,22 +4,28 @@ using System.Text;
|
||||||
|
|
||||||
namespace TLSharp.Core.MTProto
|
namespace TLSharp.Core.MTProto
|
||||||
{
|
{
|
||||||
public class Serializers {
|
public class Serializers
|
||||||
|
{
|
||||||
|
|
||||||
public static class Bytes {
|
public static class Bytes
|
||||||
public static byte[] read(BinaryReader binaryReader) {
|
{
|
||||||
|
public static byte[] read(BinaryReader binaryReader)
|
||||||
|
{
|
||||||
byte firstByte = binaryReader.ReadByte();
|
byte firstByte = binaryReader.ReadByte();
|
||||||
int len, padding;
|
int len, padding;
|
||||||
if(firstByte == 254) {
|
if (firstByte == 254)
|
||||||
|
{
|
||||||
len = binaryReader.ReadByte() | (binaryReader.ReadByte() << 8) | (binaryReader.ReadByte() << 16);
|
len = binaryReader.ReadByte() | (binaryReader.ReadByte() << 8) | (binaryReader.ReadByte() << 16);
|
||||||
padding = len % 4;
|
padding = len % 4;
|
||||||
} else {
|
}
|
||||||
|
else {
|
||||||
len = firstByte;
|
len = firstByte;
|
||||||
padding = (len + 1) % 4;
|
padding = (len + 1) % 4;
|
||||||
}
|
}
|
||||||
|
|
||||||
byte[] data = binaryReader.ReadBytes(len);
|
byte[] data = binaryReader.ReadBytes(len);
|
||||||
if(padding > 0) {
|
if (padding > 0)
|
||||||
|
{
|
||||||
padding = 4 - padding;
|
padding = 4 - padding;
|
||||||
binaryReader.ReadBytes(padding);
|
binaryReader.ReadBytes(padding);
|
||||||
}
|
}
|
||||||
|
|
@ -27,19 +33,24 @@ namespace TLSharp.Core.MTProto
|
||||||
return data;
|
return data;
|
||||||
}
|
}
|
||||||
|
|
||||||
public static BinaryWriter write(BinaryWriter binaryWriter, byte[] data) {
|
public static BinaryWriter write(BinaryWriter binaryWriter, byte[] data)
|
||||||
|
{
|
||||||
int padding;
|
int padding;
|
||||||
if(data.Length < 254) {
|
if (data.Length < 254)
|
||||||
|
{
|
||||||
padding = (data.Length + 1) % 4;
|
padding = (data.Length + 1) % 4;
|
||||||
if(padding != 0) {
|
if (padding != 0)
|
||||||
|
{
|
||||||
padding = 4 - padding;
|
padding = 4 - padding;
|
||||||
}
|
}
|
||||||
|
|
||||||
binaryWriter.Write((byte)data.Length);
|
binaryWriter.Write((byte)data.Length);
|
||||||
binaryWriter.Write(data);
|
binaryWriter.Write(data);
|
||||||
} else {
|
}
|
||||||
|
else {
|
||||||
padding = (data.Length) % 4;
|
padding = (data.Length) % 4;
|
||||||
if(padding != 0) {
|
if (padding != 0)
|
||||||
|
{
|
||||||
padding = 4 - padding;
|
padding = 4 - padding;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
@ -51,7 +62,8 @@ namespace TLSharp.Core.MTProto
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
for(int i = 0; i < padding; i++) {
|
for (int i = 0; i < padding; i++)
|
||||||
|
{
|
||||||
binaryWriter.Write((byte)0);
|
binaryWriter.Write((byte)0);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
@ -59,20 +71,25 @@ namespace TLSharp.Core.MTProto
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public static class String {
|
public static class String
|
||||||
public static string read(BinaryReader reader) {
|
{
|
||||||
|
public static string read(BinaryReader reader)
|
||||||
|
{
|
||||||
byte[] data = Bytes.read(reader);
|
byte[] data = Bytes.read(reader);
|
||||||
return Encoding.UTF8.GetString(data, 0, data.Length);
|
return Encoding.UTF8.GetString(data, 0, data.Length);
|
||||||
}
|
}
|
||||||
|
|
||||||
public static BinaryWriter write(BinaryWriter writer, string str) {
|
public static BinaryWriter write(BinaryWriter writer, string str)
|
||||||
|
{
|
||||||
return Bytes.write(writer, Encoding.UTF8.GetBytes(str));
|
return Bytes.write(writer, Encoding.UTF8.GetBytes(str));
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public static string VectorToString<T>(List<T> list) {
|
public static string VectorToString<T>(List<T> list)
|
||||||
|
{
|
||||||
string[] tokens = new string[list.Count];
|
string[] tokens = new string[list.Count];
|
||||||
for(int i = 0; i < list.Count; i++) {
|
for (int i = 0; i < list.Count; i++)
|
||||||
|
{
|
||||||
tokens[i] = list[i].ToString();
|
tokens[i] = list[i].ToString();
|
||||||
}
|
}
|
||||||
return "[" + System.String.Join(", ", tokens) + "]";
|
return "[" + System.String.Join(", ", tokens) + "]";
|
||||||
|
|
|
||||||
|
|
@ -4,26 +4,31 @@ using TLSharp.Core.MTProto.Crypto;
|
||||||
|
|
||||||
namespace TLSharp.Core.Utils
|
namespace TLSharp.Core.Utils
|
||||||
{
|
{
|
||||||
public class Helpers {
|
public class Helpers
|
||||||
|
{
|
||||||
private static Random random = new Random();
|
private static Random random = new Random();
|
||||||
|
|
||||||
public static ulong GenerateRandomUlong() {
|
public static ulong GenerateRandomUlong()
|
||||||
|
{
|
||||||
ulong rand = (((ulong)random.Next()) << 32) | ((ulong)random.Next());
|
ulong rand = (((ulong)random.Next()) << 32) | ((ulong)random.Next());
|
||||||
return rand;
|
return rand;
|
||||||
}
|
}
|
||||||
|
|
||||||
public static long GenerateRandomLong() {
|
public static long GenerateRandomLong()
|
||||||
|
{
|
||||||
long rand = (((long)random.Next()) << 32) | ((long)random.Next());
|
long rand = (((long)random.Next()) << 32) | ((long)random.Next());
|
||||||
return rand;
|
return rand;
|
||||||
}
|
}
|
||||||
|
|
||||||
public static byte[] GenerateRandomBytes(int num) {
|
public static byte[] GenerateRandomBytes(int num)
|
||||||
|
{
|
||||||
byte[] data = new byte[num];
|
byte[] data = new byte[num];
|
||||||
random.NextBytes(data);
|
random.NextBytes(data);
|
||||||
return data;
|
return data;
|
||||||
}
|
}
|
||||||
|
|
||||||
public static AESKeyData CalcKey(byte[] sharedKey, byte[] msgKey, bool client) {
|
public static AESKeyData CalcKey(byte[] sharedKey, byte[] msgKey, bool client)
|
||||||
|
{
|
||||||
int x = client ? 0 : 8;
|
int x = client ? 0 : 8;
|
||||||
byte[] buffer = new byte[48];
|
byte[] buffer = new byte[48];
|
||||||
|
|
||||||
|
|
@ -58,26 +63,32 @@ namespace TLSharp.Core.Utils
|
||||||
return new AESKeyData(key, iv);
|
return new AESKeyData(key, iv);
|
||||||
}
|
}
|
||||||
|
|
||||||
public static byte[] CalcMsgKey(byte[] data) {
|
public static byte[] CalcMsgKey(byte[] data)
|
||||||
|
{
|
||||||
byte[] msgKey = new byte[16];
|
byte[] msgKey = new byte[16];
|
||||||
Array.Copy(sha1(data), 4, msgKey, 0, 16);
|
Array.Copy(sha1(data), 4, msgKey, 0, 16);
|
||||||
return msgKey;
|
return msgKey;
|
||||||
}
|
}
|
||||||
|
|
||||||
public static byte[] CalcMsgKey(byte[] data, int offset, int limit) {
|
public static byte[] CalcMsgKey(byte[] data, int offset, int limit)
|
||||||
|
{
|
||||||
byte[] msgKey = new byte[16];
|
byte[] msgKey = new byte[16];
|
||||||
Array.Copy(sha1(data, offset, limit), 4, msgKey, 0, 16);
|
Array.Copy(sha1(data, offset, limit), 4, msgKey, 0, 16);
|
||||||
return msgKey;
|
return msgKey;
|
||||||
}
|
}
|
||||||
|
|
||||||
public static byte[] sha1(byte[] data) {
|
public static byte[] sha1(byte[] data)
|
||||||
using (SHA1 sha1 = new SHA1Managed()) {
|
{
|
||||||
|
using (SHA1 sha1 = new SHA1Managed())
|
||||||
|
{
|
||||||
return sha1.ComputeHash(data);
|
return sha1.ComputeHash(data);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public static byte[] sha1(byte[] data, int offset, int limit) {
|
public static byte[] sha1(byte[] data, int offset, int limit)
|
||||||
using (SHA1 sha1 = new SHA1Managed()) {
|
{
|
||||||
|
using (SHA1 sha1 = new SHA1Managed())
|
||||||
|
{
|
||||||
return sha1.ComputeHash(data, offset, limit);
|
return sha1.ComputeHash(data, offset, limit);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue