public static byte[] ComputeHash(Stream stream)
{
Crypto.MD5 md5 = new Crypto.MD5();
byte[] buf = new byte[4096];
int len = buf.Length;
while (len == buf.Length)
{
len = stream.Read(buf, 0, buf.Length);
if (len > 0)
{
md5.BlockUpdate(buf, 0, len);
}
}
return(md5.GetHash());
}
public static byte[] ComputeHash(byte[] buf, int offset, int count)
{
byte[] hash = null;
if (StiBaseOptions.FIPSCompliance)
{
Crypto.MD5 md5 = new Crypto.MD5();
md5.BlockUpdate(buf, offset, count);
hash = md5.GetHash();
}
else
{
MD5CryptoServiceProvider hashMD5 = new MD5CryptoServiceProvider();
hash = hashMD5.ComputeHash(buf, offset, count);
hashMD5.Clear();
}
return(hash);
}