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using primary constructors, and more [] syntax

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Wizou 2024-03-08 12:07:37 +01:00
parent d0460f296c
commit 8eb5b29d97
8 changed files with 18 additions and 28 deletions
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15
src/Encryption.cs
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@ -319,19 +319,12 @@ j4WcDuXc2CTHgH8gFTNhp/Y8/SpDOhvn9QIDAQAB
}
#if OBFUSCATION
internal class AesCtr : IDisposable
internal class AesCtr(byte[] key, byte[] ivec) : IDisposable
{
readonly ICryptoTransform _encryptor;
readonly byte[] _ivec;
readonly ICryptoTransform _encryptor = AesECB.CreateEncryptor(key, null);
readonly byte[] _ecount = new byte[16];
int _num;
public AesCtr(byte[] key, byte[] iv)
{
_encryptor = AesECB.CreateEncryptor(key, null);
_ivec = iv;
}
public void Dispose() => _encryptor.Dispose();
public void EncryptDecrypt(byte[] buffer, int length)
@ -340,9 +333,9 @@ j4WcDuXc2CTHgH8gFTNhp/Y8/SpDOhvn9QIDAQAB
{
if (_num == 0)
{
_encryptor.TransformBlock(_ivec, 0, 16, _ecount, 0);
_encryptor.TransformBlock(ivec, 0, 16, _ecount, 0);
for (int n = 15; n >= 0; n--) // increment big-endian counter
if (++_ivec[n] != 0) break;
if (++ivec[n] != 0) break;
}
buffer[i] ^= _ecount[_num];
_num = (_num + 1) % 16;