.net - 如何使用密码生成Rijndael KEY和IV？

如何使用密码生成Rijndael KEY和IV？密钥长度必须为256位。

最佳答案

这是我在互联网上找到的即插即用代码。它只适用于:

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

private static readonly byte[] SALT = new byte[] { 0x26, 0xdc, 0xff, 0x00, 0xad, 0xed, 0x7a, 0xee, 0xc5, 0xfe, 0x07, 0xaf, 0x4d, 0x08, 0x22, 0x3c };

public static byte[] Encrypt(byte[] plain, string password)
{
    MemoryStream memoryStream;
    CryptoStream cryptoStream;
    Rijndael rijndael = Rijndael.Create();
    Rfc2898DeriveBytes pdb = new Rfc2898DeriveBytes(password, SALT);
    rijndael.Key = pdb.GetBytes(32);
    rijndael.IV = pdb.GetBytes(16);
    memoryStream = new MemoryStream();
    cryptoStream = new CryptoStream(memoryStream, rijndael.CreateEncryptor(), CryptoStreamMode.Write);
    cryptoStream.Write(plain, 0, plain.Length);
    cryptoStream.Close();
    return memoryStream.ToArray();
}

public static byte[] Decrypt(byte[] cipher, string password)
{
    MemoryStream memoryStream;
    CryptoStream cryptoStream;
    Rijndael rijndael = Rijndael.Create();
    Rfc2898DeriveBytes pdb = new Rfc2898DeriveBytes(password, SALT);
    rijndael.Key = pdb.GetBytes(32);
    rijndael.IV = pdb.GetBytes(16);
    memoryStream = new MemoryStream();
    cryptoStream = new CryptoStream(memoryStream, rijndael.CreateDecryptor(), CryptoStreamMode.Write);
    cryptoStream.Write(cipher, 0, cipher.Length);
    cryptoStream.Close();
    return memoryStream.ToArray();
}

关于.net - 如何使用密码生成Rijndael KEY和IV？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/6482883/