AES加密解密，ECB模式

最新推荐文章于 2025-07-15 07:22:57 发布

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该代码段展示了使用RijndaelManaged类进行AES加密和解密的方法，主要涉及UTF8编码、ECB模式和PKCS7填充。这两个静态方法分别用于对字符串进行加密和解密操作，适用于数据安全场景。

using System.Security.Cryptography;
/// <summary>
    /// 加密
    /// </summary>
    /// <param name="encryptStr">要加密的明文</param>
    /// <param name="Key">密码</param>
    /// <returns></returns>
    public static string AESEncrypt(string encryptStr, string Key)
    {
        byte[] keyArray = UTF8Encoding.UTF8.GetBytes(Key);
        byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(encryptStr);
        RijndaelManaged rDel = new RijndaelManaged();
        rDel.Key = keyArray;
        rDel.Mode = CipherMode.ECB;
        rDel.Padding = PaddingMode.PKCS7;
        ICryptoTransform cTransform = rDel.CreateEncryptor();
        byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
        return Convert.ToBase64String(resultArray, 0, resultArray.Length);
    }
    /// <summary>
    /// 解密
    /// </summary>
    /// <param name="encryptStr"></param>
    /// <param name="Key"></param>
    /// <returns></returns>
    public static string AESDEncrypt(string encryptStr, string Key)
    {
        byte[] keyArray = UTF8Encoding.UTF8.GetBytes(Key);
        byte[] toEncryptArray = Convert.FromBase64String(encryptStr);
        RijndaelManaged rDel = new RijndaelManaged();
        rDel.Key = keyArray;
        rDel.Mode = CipherMode.ECB;
        rDel.Padding = PaddingMode.PKCS7;
        ICryptoTransform cTransform = rDel.CreateDecryptor();
        byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
        return UTF8Encoding.UTF8.GetString(resultArray);
    }