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