java密钥工厂中的KeyFactory.getInstance(“RSA“)翻译成C#的代码

BouncyCastle用这个包

RSA公钥加密

public string RSAPublickEncrypt(string pubkey, string data)
        {
            var rsaPubkey = (RsaKeyParameters)PublicKeyFactory.CreateKey(Convert.FromBase64String(pubkey));
            RSAParameters rsaParameters = new RSAParameters();
            rsaParameters.Modulus = rsaPubkey.Modulus.ToByteArrayUnsigned();
            rsaParameters.Exponent = rsaPubkey.Exponent.ToByteArrayUnsigned();
            RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
            rsa.ImportParameters(rsaParameters);


            byte[] dataBytes = Encoding.Default.GetBytes(data);
            byte[] encryptBytes = rsa.Encrypt(dataBytes, false);
            string encryptString = Convert.ToBase64String(encryptBytes);
            return encryptString;
        }