public static byte[] ComputeHash(byte[] input, byte[] key, string algorithm)
{
if (input == null || input.Length == 0)
{
throw new ArgumentException();
}
if (key == null || key.Length == 0)
{
throw new ArgumentException();
}
System.Security.Cryptography.KeyedHashAlgorithm hash;
switch (algorithm.ToUpperInvariant())
{
case "MD5":
case "HMACMD5":
hash = HMACMD5.Create();
break;
case "MD160":
case "RIPEMD160":
case "HMACRIPEMD160":
hash = HMACRIPEMD160.Create();
break;
case "SHA":
case "SHA1":
case "HMACSHA":
case "HMACSHA1":
hash = HMACSHA1.Create();
break;
case "SHA256":
case "HMACSHA256":
hash = HMACSHA256.Create();
break;
case "SHA384":
case "HMACSHA384":
hash = HMACSHA384.Create();
break;
case "SHA512":
case "HMACSHA512":
hash = HMACSHA512.Create();
break;
default:
throw new NotSupportedException();
}
hash.Key = key;
byte[] result = hash.ComputeHash(input);
hash.Clear();
return(result);
}
public void HmaCalls()
{
using (var hmacripemd160 = HMACRIPEMD160.Create("HMACRIPEMD160")) // Noncompliant
{
}
using (var hmacripemd160 = KeyedHashAlgorithm.Create("HMACRIPEMD160")) // Noncompliant
{
}
using (var hmacripemd160 = (KeyedHashAlgorithm)CryptoConfig.CreateFromName("HMACRIPEMD160")) // Noncompliant
{
}
}
public void HmaCalls()
{
using (var hmac = new HMACSHA1()) // Noncompliant
{
}
using (var hmac = HMAC.Create()) // Noncompliant
{
}
using (var hmacmd5 = HMACMD5.Create("HMACMD5")) // Noncompliant
{
}
using (var hmacmd5 = KeyedHashAlgorithm.Create("HMACMD5")) // Noncompliant
{
}
using (var hmacmd5 = (KeyedHashAlgorithm)CryptoConfig.CreateFromName("HMACMD5")) // Noncompliant
{
}
using (var hmacripemd160 = HMACRIPEMD160.Create("HMACRIPEMD160")) // Noncompliant
{
}
using (var hmacripemd160 = KeyedHashAlgorithm.Create("HMACRIPEMD160")) // Noncompliant
{
}
using (var hmacripemd160 = (KeyedHashAlgorithm)CryptoConfig.CreateFromName("HMACRIPEMD160")) // Noncompliant
{
}
using (var hmacsha256 = HMACSHA256.Create("HMACSHA256"))
{
}
using (var hmacsha256 = KeyedHashAlgorithm.Create("HMACSHA256"))
{
}
using (var hmacsha256 = (KeyedHashAlgorithm)CryptoConfig.CreateFromName("HMACSHA256"))
{
}
}
