internal string GetSignatureKeyDerivationAlgorithm(SecurityToken token, SecureConversationVersion version)
{
if (token == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(token));
}
string derivationAlgorithm = SecurityUtils.GetKeyDerivationAlgorithm(version);
if (SecurityUtils.IsSupportedAlgorithm(derivationAlgorithm, token))
{
return(derivationAlgorithm);
}
else
{
return(null);
}
}
internal void GetKeyWrapAlgorithm(SecurityToken token, out string keyWrapAlgorithm, out XmlDictionaryString keyWrapAlgorithmDictionaryString)
{
if (token == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(token));
}
if (SecurityUtils.IsSupportedAlgorithm(DefaultSymmetricKeyWrapAlgorithm, token))
{
keyWrapAlgorithm = DefaultSymmetricKeyWrapAlgorithm;
keyWrapAlgorithmDictionaryString = DefaultSymmetricKeyWrapAlgorithmDictionaryString;
}
else
{
keyWrapAlgorithm = DefaultAsymmetricKeyWrapAlgorithm;
keyWrapAlgorithmDictionaryString = DefaultAsymmetricKeyWrapAlgorithmDictionaryString;
}
}
internal int GetSignatureKeyDerivationLength(SecurityToken token, SecureConversationVersion version)
{
if (token == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(token));
}
string derivationAlgorithm = SecurityUtils.GetKeyDerivationAlgorithm(version);
if (SecurityUtils.IsSupportedAlgorithm(derivationAlgorithm, token))
{
if (DefaultSignatureKeyDerivationLength % 8 != 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(SR.Format(SR.Psha1KeyLengthInvalid, DefaultSignatureKeyDerivationLength)));
}
return(DefaultSignatureKeyDerivationLength / 8);
}
else
{
return(0);
}
}