public static KeySpec KeySpec()

in Notation.Plugin.AzureKeyVault/Protocol/CertificateExtension.cs [15:40]

• 22 lines of code
• 5 McCabe index (conditional complexity)

        public static KeySpec KeySpec(this X509Certificate2 certificate)
        {
            RSA? rsaKey = certificate.GetRSAPublicKey();
            if (rsaKey != null)
            {
                if (rsaKey.KeySize is 2048 or 3072 or 4096)
                {
                    return new KeySpec(KeyType.RSA, rsaKey.KeySize);
                }

                throw new ValidationException($"RSA key size {rsaKey.KeySize} bits is not supported");
            }

            ECDsa? ecdsaKey = certificate.GetECDsaPublicKey();
            if (ecdsaKey != null)
            {
                if (ecdsaKey.KeySize is 256 or 384 or 521)
                {
                    return new KeySpec(KeyType.EC, ecdsaKey.KeySize);
                }

                throw new ValidationException($"ECDSA key size {ecdsaKey.KeySize} bits is not supported");
            }

            throw new ValidationException("Unsupported public key type");
        }