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ahmadali shafiee 2016-04-18 15:20:57 +04:30
parent d330f9614b
commit 504b63a6d7
38 changed files with 16805 additions and 16280 deletions
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35
TLSharp.Core/Utils/Helpers.cs
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@ -4,26 +4,31 @@ using TLSharp.Core.MTProto.Crypto;
namespace TLSharp.Core.Utils
{
public class Helpers {
public class Helpers
{
private static Random random = new Random();
public static ulong GenerateRandomUlong() {
public static ulong GenerateRandomUlong()
{
ulong rand = (((ulong)random.Next()) << 32) | ((ulong)random.Next());
return rand;
}
public static long GenerateRandomLong() {
public static long GenerateRandomLong()
{
long rand = (((long)random.Next()) << 32) | ((long)random.Next());
return rand;
}
public static byte[] GenerateRandomBytes(int num) {
public static byte[] GenerateRandomBytes(int num)
{
byte[] data = new byte[num];
random.NextBytes(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;
byte[] buffer = new byte[48];
@ -58,26 +63,32 @@ namespace TLSharp.Core.Utils
return new AESKeyData(key, iv);
}
public static byte[] CalcMsgKey(byte[] data) {
public static byte[] CalcMsgKey(byte[] data)
{
byte[] msgKey = new byte[16];
Array.Copy(sha1(data), 4, msgKey, 0, 16);
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];
Array.Copy(sha1(data, offset, limit), 4, msgKey, 0, 16);
return msgKey;
}
public static byte[] sha1(byte[] data) {
using (SHA1 sha1 = new SHA1Managed()) {
public static byte[] sha1(byte[] data)
{
using (SHA1 sha1 = new SHA1Managed())
{
return sha1.ComputeHash(data);
}
}
public static byte[] sha1(byte[] data, int offset, int limit) {
using (SHA1 sha1 = new SHA1Managed()) {
public static byte[] sha1(byte[] data, int offset, int limit)
{
using (SHA1 sha1 = new SHA1Managed())
{
return sha1.ComputeHash(data, offset, limit);
}
}