GetPublicKey< T >()

static T Internal.Cryptography.Pal.CertificateExtensionsCommon.GetPublicKey< T > ( this X509Certificate2 certificate, Predicate< X509Certificate2 > matchesConstraints = null )

inlinestatic

Type Constraints

T

:

AsymmetricAlgorithm

Definition at line 9 of file CertificateExtensionsCommon.cs.

                                                                                                                                      : AsymmetricAlgorithm
    {
        if (certificate == null)
        {
            throw new ArgumentNullException("certificate");
        }
        string expectedOidValue = GetExpectedOidValue<T>();
        PublicKey publicKey = certificate.PublicKey;
        Oid oid = publicKey.Oid;
        if (expectedOidValue != oid.Value)
        {
            return null;
        }
        if (matchesConstraints != null && !matchesConstraints(certificate))
        {
            return null;
        }
        if (typeof(T) == typeof(RSA) || typeof(T) == typeof(DSA))
        {
            byte[] rawData = publicKey.EncodedKeyValue.RawData;
            byte[] rawData2 = publicKey.EncodedParameters.RawData;
            return (T)X509Pal.Instance.DecodePublicKey(oid, rawData, rawData2, certificate.Pal);
        }
        if (typeof(T) == typeof(ECDsa))
        {
            return (T)(AsymmetricAlgorithm)X509Pal.Instance.DecodeECDsaPublicKey(certificate.Pal);
        }
        if (typeof(T) == typeof(ECDiffieHellman))
        {
            return (T)(AsymmetricAlgorithm)X509Pal.Instance.DecodeECDiffieHellmanPublicKey(certificate.Pal);
        }
        throw new NotSupportedException(System.SR.NotSupported_KeyAlgorithm);
    }

References System.Security.Cryptography.X509Certificates.PublicKey.EncodedKeyValue, System.Security.Cryptography.X509Certificates.PublicKey.EncodedParameters, Internal.Cryptography.Pal.CertificateExtensionsCommon.GetExpectedOidValue< T >(), Internal.Cryptography.Pal.X509Pal.Instance, System.SR.NotSupported_KeyAlgorithm, System.Security.Cryptography.X509Certificates.PublicKey.Oid, System.Security.Cryptography.X509Certificates.X509Certificate2.Pal, System.Security.Cryptography.X509Certificates.X509Certificate2.PublicKey, System.Security.Cryptography.AsnEncodedData.RawData, and System.Security.Cryptography.Oid.Value.