public byte[] EncryptCBC(Sm4Context ctx, byte[] iv, byte[] input)
{
if (ctx.IsPadding)
{
input = Padding(input);
}
int length = input.Length;
byte[] bins = new byte[length];
Array.Copy(input, 0, bins, 0, length);
var bousList = new List <byte>();
for (int j = 0; length > 0; length -= 16, j++)
{
byte[] inBytes = new byte[16];
byte[] outBytes = new byte[16];
byte[] out1 = new byte[16];
Array.Copy(bins, j * 16, inBytes, 0, length > 16 ? 16 : length);
for (int i = 0; i < 16; i++)
{
outBytes[i] = ((byte)(inBytes[i] ^ iv[i]));
}
Sm4OneRound(ctx.SubKeys, outBytes, out1);
Array.Copy(out1, 0, iv, 0, 16);
for (int k = 0; k < 16; k++)
{
bousList.Add(out1[k]);
}
}
var output = bousList.ToArray();
for (int i = 0; i < output.Length; i++)
{
if (output[i] < 0)
{
output[i] = (byte)(output[i] + 256);
}
}
return(output);
}
public void SetKeyEnc(Sm4Context ctx, byte[] key)
{
SetKey(ctx.SubKeys, key);
}
