/// <summary>
/// Gets a HashAlgorithm from a HashProvider using a no-search static array
/// </summary>
private static HashAlgorithm GetHashAlgorithm(HashProvider Provider)
{
if (hashAlgorithms[(int)Provider] == null)
{
var h = HashAlgorithm.Create(Provider.ToString());
hashAlgorithms[(int)Provider] = h;
}
return(hashAlgorithms[(int)Provider]);
}
public static HashAlgorithm GetHashAlgorithm(this HashProvider Provider)
{
if (hashAlgorithms[(int)Provider] == null)
{
//var h = HashAlgorithm.Create(Provider.ToString());
var h = (HashAlgorithm)CryptoConfig.CreateFromName(Provider.ToString());
hashAlgorithms[(int)Provider] = h;
}
return(hashAlgorithms[(int)Provider]);
}
public static HashAlgorithmName GetHashAlgorithmName(this HashProvider Provider)
{
switch (Provider)
{
case HashProvider.SHA256:
return(HashAlgorithmName.SHA256);
case HashProvider.SHA384:
return(HashAlgorithmName.SHA384);
case HashProvider.SHA512:
return(HashAlgorithmName.SHA512);
default:
throw new NotImplementedException("Hash provider '" + Provider.ToString() + "' not implemented in GetHashAlgorithmName");
}
}
public static int GetProviderByteLength(this HashProvider ForProvider)
{
switch (ForProvider)
{
case HashProvider.SHA256:
return(32);
case HashProvider.SHA384:
return(48);
case HashProvider.SHA512:
return(64);
default:
throw new NotImplementedException("Hash provider '" + ForProvider.ToString() + "' not implemented in GetHashByteLength");
}
}
public static string GetOIDForProvider(HashProvider Provider)
{
return(CryptoConfig.MapNameToOID(Provider.ToString()));
}
public static Oid GetOID(this HashProvider ForProvider)
{
return(Oid.FromFriendlyName(ForProvider.ToString(), OidGroup.HashAlgorithm));
}