HasECDsaKeyUsage()

static bool System.Security.Cryptography.X509Certificates.ECDsaCertificateExtensions.HasECDsaKeyUsage ( X509Certificate2 certificate )

inlinestaticprivate

Definition at line 47 of file ECDsaCertificateExtensions.cs.

    {
        foreach (X509Extension extension in certificate.Extensions)
        {
            if (extension.Oid.Value == "2.5.29.15")
            {
                X509KeyUsageExtension x509KeyUsageExtension = (X509KeyUsageExtension)extension;
                if ((x509KeyUsageExtension.KeyUsages & X509KeyUsageFlags.KeyAgreement) == 0)
                {
                    return true;
                }
                return (x509KeyUsageExtension.KeyUsages & (X509KeyUsageFlags.CrlSign | X509KeyUsageFlags.KeyCertSign | X509KeyUsageFlags.NonRepudiation | X509KeyUsageFlags.DigitalSignature)) != 0;
            }
        }
        return true;
    }

References System.Security.Cryptography.X509Certificates.X509KeyUsageExtension.KeyUsages, System.Security.Cryptography.AsnEncodedData.Oid, and System.Security.Cryptography.Oid.Value.

Referenced by System.Security.Cryptography.X509Certificates.ECDsaCertificateExtensions.GetECDsaPrivateKey(), and System.Security.Cryptography.X509Certificates.ECDsaCertificateExtensions.GetECDsaPublicKey().