public static object CreateEngine(
string algorithm)
{
//TODO: SUSTITUIDO
//string mechanism = (string)algorithms[algorithm.ToUpper(CultureInfo.InvariantCulture)];
string mechanism = (string)algorithms[algorithm.ToUpper()];
if (mechanism.StartsWith("PBEwithHmac"))
{
string digestName = mechanism.Substring("PBEwithHmac".Length);
return(MacUtilities.GetMac("HMAC/" + digestName));
}
if (mechanism.StartsWith("PBEwithMD2") ||
mechanism.StartsWith("PBEwithMD5") ||
mechanism.StartsWith("PBEwithSHA-1"))
{
if (mechanism.EndsWith("RC2-CBC"))
{
return(CipherUtilities.GetCipher("RC2/CBC"));
}
if (mechanism.EndsWith("RC4"))
{
return(CipherUtilities.GetCipher("RC4"));
}
if (mechanism.EndsWith("DES-CBC"))
{
return(CipherUtilities.GetCipher("DES/CBC"));
}
if (mechanism.EndsWith("DESEDE-CBC"))
{
return(CipherUtilities.GetCipher("DESEDE/CBC"));
}
}
return(null);
}
public static object CreateEngine(
string algorithm)
{
string mechanism = (string)algorithms[Platform.StringToUpper(algorithm)];
if (mechanism.StartsWith("PBEwithHmac"))
{
string digestName = mechanism.Substring("PBEwithHmac".Length);
return(MacUtilities.GetMac("HMAC/" + digestName));
}
if (mechanism.StartsWith("PBEwithMD2") ||
mechanism.StartsWith("PBEwithMD5") ||
mechanism.StartsWith("PBEwithSHA-1"))
{
if (mechanism.EndsWith("RC2-CBC"))
{
return(CipherUtilities.GetCipher("RC2/CBC"));
}
if (mechanism.EndsWith("RC4"))
{
return(CipherUtilities.GetCipher("RC4"));
}
if (mechanism.EndsWith("DES-CBC"))
{
return(CipherUtilities.GetCipher("DES/CBC"));
}
if (mechanism.EndsWith("DESEDE-CBC"))
{
return(CipherUtilities.GetCipher("DESEDE/CBC"));
}
}
return(null);
}
public static IMac GetMac(DerObjectIdentifier id)
{
return MacUtilities.GetMac(id.Id);
}
public static byte[] DoFinal(IMac mac, byte[] input)
{
mac.BlockUpdate(input, 0, input.Length);
return MacUtilities.DoFinal(mac);
}
