private PrivateKeyStatus FoundPrivateKey(SecurityKey key)
{
AsymmetricSecurityKey asymmetricSecurityKey = key as AsymmetricSecurityKey;
if (asymmetricSecurityKey != null)
{
return(asymmetricSecurityKey.PrivateKeyStatus);
}
JsonWebKey jsonWebKey = key as JsonWebKey;
if (jsonWebKey != null)
{
return(jsonWebKey.HasPrivateKey ? PrivateKeyStatus.Exists : PrivateKeyStatus.DoesNotExist);
}
return(PrivateKeyStatus.Unknown);
}
private bool HasPrivateKey(SecurityKey key)
{
AsymmetricSecurityKey asymmetricSecurityKey = key as AsymmetricSecurityKey;
if (asymmetricSecurityKey != null)
{
return(asymmetricSecurityKey.HasPrivateKey);
}
JsonWebKey jsonWebKey = key as JsonWebKey;
if (jsonWebKey != null)
{
return(jsonWebKey.HasPrivateKey);
}
return(false);
}
private SignatureProvider CreateSignatureProvider(SecurityKey key, string algorithm, bool willCreateSignatures)
{
if (key == null)
{
throw LogHelper.LogArgumentNullException(nameof(key));
}
if (string.IsNullOrEmpty(algorithm))
{
throw LogHelper.LogArgumentNullException(nameof(algorithm));
}
if (CustomCryptoProvider != null && CustomCryptoProvider.IsSupportedAlgorithm(algorithm, key, willCreateSignatures))
{
SignatureProvider signatureProvider = CustomCryptoProvider.Create(algorithm, key, willCreateSignatures) as SignatureProvider;
if (signatureProvider == null)
{
throw LogHelper.LogExceptionMessage(new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, LogMessages.IDX10646, algorithm, key, typeof(SignatureProvider))));
}
return(signatureProvider);
}
if (!IsSupportedAlgorithm(algorithm, key))
{
throw LogHelper.LogExceptionMessage(new ArgumentException(String.Format(CultureInfo.InvariantCulture, LogMessages.IDX10634, algorithm, key)));
}
AsymmetricSecurityKey asymmetricKey = key as AsymmetricSecurityKey;
if (asymmetricKey != null)
{
return(new AsymmetricSignatureProvider(asymmetricKey, algorithm, willCreateSignatures));
}
SymmetricSecurityKey symmetricKey = key as SymmetricSecurityKey;
if (symmetricKey != null)
{
return(new SymmetricSignatureProvider(symmetricKey, algorithm));
}
JsonWebKey jsonWebKey = key as JsonWebKey;
if (jsonWebKey != null)
{
if (jsonWebKey.Kty != null)
{
if (jsonWebKey.Kty == JsonWebAlgorithmsKeyTypes.RSA || jsonWebKey.Kty == JsonWebAlgorithmsKeyTypes.EllipticCurve)
{
return(new AsymmetricSignatureProvider(key, algorithm, willCreateSignatures));
}
if (jsonWebKey.Kty == JsonWebAlgorithmsKeyTypes.Octet)
{
return(new SymmetricSignatureProvider(key, algorithm));
}
}
}
// TODO improve this message. Nothing about JsonWebKey is mentioned.
throw LogHelper.LogExceptionMessage(new ArgumentException(String.Format(CultureInfo.InvariantCulture, LogMessages.IDX10600, typeof(SignatureProvider), typeof(SecurityKey), typeof(AsymmetricSecurityKey), typeof(SymmetricSecurityKey), key.GetType())));
}
private SignatureProvider CreateProvider(SecurityKey key, string algorithm, bool willCreateSignatures)
{
if (key == null)
{
throw LogHelper.LogArgumentNullException(nameof(key));
}
if (string.IsNullOrWhiteSpace(algorithm))
{
throw LogHelper.LogArgumentNullException(nameof(algorithm));
}
if (CustomCryptoProvider != null && CustomCryptoProvider.IsSupportedAlgorithm(algorithm, key, willCreateSignatures))
{
SignatureProvider signatureProvider = CustomCryptoProvider.Create(algorithm, key, willCreateSignatures) as SignatureProvider;
if (signatureProvider == null)
{
throw LogHelper.LogException <InvalidOperationException>(LogMessages.IDX10646, key, algorithm, typeof(SignatureProvider));
}
return(signatureProvider);
}
if (!IsSupportedAlgorithm(algorithm, key))
{
throw LogHelper.LogException <ArgumentException>(LogMessages.IDX10634, algorithm, key);
}
AsymmetricSecurityKey asymmetricKey = key as AsymmetricSecurityKey;
if (asymmetricKey != null)
{
return(new AsymmetricSignatureProvider(asymmetricKey, algorithm, willCreateSignatures));
}
SymmetricSecurityKey symmetricKey = key as SymmetricSecurityKey;
if (symmetricKey != null)
{
return(new SymmetricSignatureProvider(symmetricKey, algorithm));
}
JsonWebKey jsonWebKey = key as JsonWebKey;
if (jsonWebKey != null)
{
if (jsonWebKey.Kty != null)
{
if (jsonWebKey.Kty == JsonWebAlgorithmsKeyTypes.RSA || jsonWebKey.Kty == JsonWebAlgorithmsKeyTypes.EllipticCurve)
{
return(new AsymmetricSignatureProvider(key, algorithm, willCreateSignatures));
}
if (jsonWebKey.Kty == JsonWebAlgorithmsKeyTypes.Octet)
{
return(new SymmetricSignatureProvider(key, algorithm));
}
}
}
throw LogHelper.LogException <ArgumentException>(LogMessages.IDX10600, typeof(SignatureProvider), typeof(SecurityKey), typeof(AsymmetricSecurityKey), typeof(SymmetricSecurityKey), key.GetType());
}