protected override void SetKey(byte[] keyBytes, byte[] ivBytes)
{
if (keyBytes.Length != 32)
{
throw new ArgumentException(this.AlgorithmName + " requires a 256 bit key");
}
base.SetKey(keyBytes, ivBytes);
this.engineState[8] = Pack.LE_To_UInt32(ivBytes, 8);
this.engineState[9] = Pack.LE_To_UInt32(ivBytes, 12);
uint[] array = new uint[this.engineState.Length];
Salsa20Engine.SalsaCore(20, this.engineState, array);
this.engineState[1] = array[0] - this.engineState[0];
this.engineState[2] = array[5] - this.engineState[5];
this.engineState[3] = array[10] - this.engineState[10];
this.engineState[4] = array[15] - this.engineState[15];
this.engineState[11] = array[6] - this.engineState[6];
this.engineState[12] = array[7] - this.engineState[7];
this.engineState[13] = array[8] - this.engineState[8];
this.engineState[14] = array[9] - this.engineState[9];
this.engineState[6] = Pack.LE_To_UInt32(ivBytes, 16);
this.engineState[7] = Pack.LE_To_UInt32(ivBytes, 20);
this.ResetCounter();
}
protected override void SetKey(byte[] keyBytes, byte[] ivBytes)
{
//IL_0017: Unknown result type (might be due to invalid IL or missing references)
if (keyBytes.Length != 32)
{
throw new ArgumentException(AlgorithmName + " requires a 256 bit key");
}
base.SetKey(keyBytes, ivBytes);
engineState[8] = Pack.LE_To_UInt32(ivBytes, 8);
engineState[9] = Pack.LE_To_UInt32(ivBytes, 12);
uint[] array = new uint[engineState.Length];
Salsa20Engine.SalsaCore(20, engineState, array);
engineState[1] = array[0] - engineState[0];
engineState[2] = array[5] - engineState[5];
engineState[3] = array[10] - engineState[10];
engineState[4] = array[15] - engineState[15];
engineState[11] = array[6] - engineState[6];
engineState[12] = array[7] - engineState[7];
engineState[13] = array[8] - engineState[8];
engineState[14] = array[9] - engineState[9];
engineState[6] = Pack.LE_To_UInt32(ivBytes, 16);
engineState[7] = Pack.LE_To_UInt32(ivBytes, 20);
ResetCounter();
}
protected virtual void GenerateKeyStream(byte[] output)
{
Salsa20Engine.SalsaCore(this.rounds, this.engineState, this.x);
Pack.UInt32_To_LE(this.x, output, 0);
}