AES 256加密：公钥和私钥我怎么能生成和使用它。NET [英] AES 256 Encryption: public and private key how can I generate and use it .net

问题描述

关于AES 256加密：

Regarding AES 256 Encryption:

• 什么是公钥和私钥


• 如何我可以生成这两个键？


• 如何使用公众对数据进行加密？


• 我如何使用私人解密数据？

• What is the public and private key?
• How can I generate these two keys?
• How can I use the public to encrypt the data?
• How can I use the private to decrypt the data?

推荐答案

在.NET中，可以创建你的密钥对这样的：

In .Net, you can create your key pair like this:

public static Tuple<string, string> CreateKeyPair()
{
    CspParameters cspParams = new CspParameters { ProviderType = 1 };

    RSACryptoServiceProvider rsaProvider = new RSACryptoServiceProvider(1024, cspParams);

    string publicKey = Convert.ToBase64String(rsaProvider.ExportCspBlob(false));
    string privateKey = Convert.ToBase64String(rsaProvider.ExportCspBlob(true));

    return new Tuple<string, string>(privateKey, publicKey);
}

您就可以使用您的公钥来，像这样加密的消息：

You can then use your public key to encrypt a message like so:

public static byte[] Encrypt(string publicKey, string data)
{
    CspParameters cspParams = new CspParameters { ProviderType = 1 };
    RSACryptoServiceProvider rsaProvider = new RSACryptoServiceProvider(cspParams);

    rsaProvider.ImportCspBlob(Convert.FromBase64String(publicKey));

    byte[] plainBytes = Encoding.UTF8.GetBytes(data);
    byte[] encryptedBytes = rsaProvider.Encrypt(plainBytes, false);

    return encryptedBytes;
}

和使用您的私钥来解密这样的：

And use your private key to decrypt like this:

public static string Decrypt(string privateKey, byte[] encryptedBytes)
{
    CspParameters cspParams = new CspParameters { ProviderType = 1 };
    RSACryptoServiceProvider rsaProvider = new RSACryptoServiceProvider(cspParams);

    rsaProvider.ImportCspBlob(Convert.FromBase64String(privateKey));

    byte[] plainBytes = rsaProvider.Decrypt(encryptedBytes, false);

    string plainText = Encoding.UTF8.GetString(plainBytes, 0, plainBytes.Length);

    return plainText;
}

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