C#和PHP,ColdFusion,Ruby,Python之间的兼容加密

using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;

namespace PemEncryptExample
{
    class Program
    {
        static void Main(string[] args)
        {
            string plaintext = "This text needs to be encrypted.";

            // Read plaintext from input
            string plaintextInBase64 = ReadFileInBase64(plaintext);

            // Read PEM secret from input
            string pemSecretString = "-----BEGIN PUBLIC KEY----- 
MY_SECRET_KEY ... 
-----END PUBLIC KEY-----";

            // Read PEM private from input (use for decryption)
            string pemPrivateKeyString = "-----BEGIN RSA PRIVATE KEY----- 
MY_PRIVATE_KEY ... 
-----END RSA PRIVATE KEY-----";

            // Load Private Key from PEM and Decrypt using RSA
            RSACryptoServiceProvider rsa = ReadPrivateKey(pemPrivateKeyString, "RSA");
            byte[] decryptedDataBytes = rsa.Decrypt(Convert.FromBase64String(plaintextInBase64), "RSA");

            // Load Public Key and Encrypt using RSA
            RSACryptoServiceProvider rsaPublicKey = ReadPublicKey(pemSecretString, "RSA");
            byte[] encryptedDataBytes = rsaPublicKey.Encrypt(decryptedDataBytes, "RSA");

            // Convert encrypted bytes to a base64 string
            string encryptedDataInBase64 = Convert.ToBase64String(encryptedDataBytes);

            // Write encrypted data to the console
            Console.WriteLine("Encrypted Data: " + encryptedDataInBase64);

            // Write plaintext in base64 to the console
            Console.WriteLine("plaintext: " + plaintextInBase64);
        }

        static string ReadFileInBase64(string path)
        {
            byte[] data = null;
            StreamReader reader = null;
            string result = "";

            try
            {
                // Read data from file
                using (reader = new StreamReader(path))
                {
                    data = reader.BaseStream.GetAllBytes();
                }

                // Convert data to base64
                System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
                result = encoding.GetString(data, 0, data.Length);
            }
            catch (Exception)
            {

            }

            return result;
        }

        static RSACryptoServiceProvider ReadPublicKey(string pemSecretString, string algorithm)
        { 
            PEMParser pemParser = new PEMParser(new StringReader(pemSecretString));
            PemObject obj = pemParser.ReadPemObject();
            PEMKeyPair pemKeyPair = obj as PEMKeyPair;
            var publicKey =pemKeyPair.PublicKey.PublicKey;
            byte[] publicKeyBytes =publicKey.Raw;
            return new RSACryptoServiceProvider(publicKeyBytes); 
        }     

        static RSACryptoServiceProvider ReadPrivateKey(string pemPrivateKeyString, string algorithm)
        {
            PEMParser pemParser = new PEMParser(new StringReader(pemPrivateKeyString));
            PemObject obj = pemParser.ReadPemObject();
            PEMKeyPair pemKeyPair = obj as PEMKeyPair;
            System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();

            // Load RSA Private Key into a RSACryptoServiceProvider instance
            byte[] privateKey = encoding.GetBytes(pemKeyPair.PrivateKey);
            return new RSACryptoServiceProvider(privateKey); 
        }
        static void Main(string[] args)
        {
            string plaintext = "This text needs to be encrypted.";

            // Read plaintext from input
            string plaintextInBase64 = ReadFileInBase64(plaintext);

            // Read PEM secret from input
            string pemSecretString = "-----BEGIN PUBLIC KEY----- 
MY_SECRET_KEY ... 
-----END PUBLIC KEY-----";

            // Read PEM private from input (use for decryption)
            string pemPrivateKeyString = "-----BEGIN RSA PRIVATE KEY----- 
MY_PRIVATE_KEY ... 
-----END RSA PRIVATE KEY-----";

            // Load Private Key from PEM and Decrypt using RSA
            RSACryptoServiceProvider rsa = ReadPrivateKey(pemPrivateKeyString, "RSA");
            byte[] decryptedDataBytes = rsa.Decrypt(Convert.FromBase64String(plaintextInBase64), "RSA");

            // Load Public Key and Encrypt using RSA
            RSACryptoServiceProvider rsaPublicKey = ReadPublicKey(pemSecretString, "RSA");
            byte[] encryptedDataBytes = rsaPublicKey.Encrypt(decryptedDataBytes, "RSA");
            // Convert encrypted bytes to a base64 string
            string encryptedDataInBase64 = Convert.ToBase64String(encryptedDataBytes);

            // Write encrypted data to the console
            Console.WriteLine("Encrypted Data: " + encryptedDataInBase64);

            // Write plaintext in base64 to the console
            Console.WriteLine("plaintext: " + plaintextInBase64);
        }
    }
}

<?php
try {
    // Read plaintext from input
    $plaintext = "This text needs to be encrypted.";

    // Read PEM secret from input
    $pemSecretString  = "-----BEGIN PUBLIC KEY----- 
MY_SECRET_KEY ... 
-----END PUBLIC KEY-----";

    // Read PEM private from input
    $pemPrivateKeyString = "-----BEGIN RSA PRIVATE KEY----- 
MY_PRIVATE_KEY ... 
-----END RSA PRIVATE KEY-----";

    // Load Private Key from PEM and Decrypt using RSA
    $rsaPrivateKey = openssl_pkey_get_private($pemPrivateKeyString);
    openssl_decrypt($plaintext, "AES-40-CBC", $rsaPrivateKey, 0, "mykey.aes.key", "mykey");
    
} catch (\Exception $ex) {
    echo $ex->getMessage()."\n";
}