.NET使用OpenSSL生成的pem密钥文件(增加size为2048的密钥转换)(4)

            index += pemExponent1.Length;
            index += (keySize1024 ? ((int)keyData[index + 1] == 64 ? 2 : 3) : ((int)keyData[index + 2] == 128 ? 3 : 4));
            byte[] pemExponent2 = (keySize1024 ? new byte[64] : new byte[128]);
            Array.Copy(keyData, index, pemExponent2, 0, pemExponent2.Length);

            index += pemExponent2.Length;
            index += (keySize1024 ? ((int)keyData[index + 1] == 64 ? 2 : 3) : ((int)keyData[index + 2] == 128 ? 3 : 4));
            byte[] pemCoefficient = (keySize1024 ? new byte[64] : new byte[128]);
            Array.Copy(keyData, index, pemCoefficient, 0, pemCoefficient.Length);

            RSAParameters para = new RSAParameters();
            para.Modulus = pemModulus;
            para.Exponent = pemPublicExponent;
            para.D = pemPrivateExponent;
            para.P = pemPrime1;
            para.Q = pemPrime2;
            para.DP = pemExponent1;
            para.DQ = pemExponent2;
            para.InverseQ = pemCoefficient;
            return para;
        }
       
    }
}

测试加、解密，签名验证功能通过：
        static void Main(string[] args)
        {
            string privateKey = GetPemContent(@"C:\ftzl\privatekey2048.pem");
            string publicKey = GetPemContent(@"c:\ftzl\publickey2048.pem");

            //DebugRsaKey(privateKey,true);
            TestSignAndEncrypt(privateKey,publicKey);