public static byte[] HashData(TpmAlgId algId, byte[] dataToHash)
{
if (dataToHash == null)
{
dataToHash = new byte[0];
}
#if TSS_USE_BCRYPT
string algName = Native.BCryptHashAlgName(algId);
if (string.IsNullOrEmpty(algName))
{
Globs.Throw <ArgumentException>("HashData(): Unsupported hash algorithm " + algId);
return(null);
}
var alg = new BCryptAlgorithm(algName);
var digest = alg.HashData(dataToHash);
alg.Close();
return(digest);
#else
HashAlgorithm hashAlg = null;
switch (algId)
{
case TpmAlgId.Sha1:
hashAlg = new SHA1Managed();
break;
case TpmAlgId.Sha256:
hashAlg = new SHA256Managed();
break;
case TpmAlgId.Sha384:
hashAlg = new SHA384Managed();
break;
case TpmAlgId.Sha512:
hashAlg = new SHA512Managed();
break;
default:
Globs.Throw <ArgumentException>("AlgId is not a supported hash algorithm");
return(null);
}
return(hashAlg.ComputeHash(dataToHash));
#endif
}
public static byte[] HashData(TpmAlgId algId, byte[] dataToHash)
{
#if TSS_USE_BCRYPT
string algName = Native.BCryptHashAlgName(algId);
if (string.IsNullOrEmpty(algName))
{
Globs.Throw<ArgumentException>("HashData(): Unsupported hash algorithm " + algId);
return null;
}
var alg = new BCryptAlgorithm(algName);
var digest = alg.HashData(dataToHash);
alg.Close();
return digest;
#else
HashAlgorithm hashAlg = null;
switch (algId)
{
case TpmAlgId.Sha1:
hashAlg = new SHA1Managed();
break;
case TpmAlgId.Sha256:
hashAlg = new SHA256Managed();
break;
case TpmAlgId.Sha384:
hashAlg = new SHA384Managed();
break;
case TpmAlgId.Sha512:
hashAlg = new SHA512Managed();
break;
default:
Globs.Throw<ArgumentException>("AlgId is not a supported hash algorithm");
return null;
}
return hashAlg.ComputeHash(dataToHash);
#endif
}
