[游戏开发]C# Unity AES加密工具类 各个参数可控

想了解AES的可以去看看下面这个帖子↓

AES加密算法的详细介绍与实现

封装的AES工具类

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

public class AESEncryptHelper
{

    public enum BlockSizeMode
    {
        /// <summary>
        /// key、iv 16位
        /// </summary>
        S128 = 128,
        /// <summary>
        /// key、iv 24位
        /// </summary>
        S192 = 192,
        /// <summary>
        /// key、iv 32位
        /// </summary>
        S256 = 256
    }


    //默认密钥
    private string key = "[Nice/*YUIasee;]";
    private string iv  = "[Blm**^^QAQByte]";
    private CipherMode cipherMode = CipherMode.ECB;
    private PaddingMode paddingMode = PaddingMode.PKCS7;
    private BlockSizeMode blockSizeMode = BlockSizeMode.S128;


    /// <summary>
    /// 使用默认数据构造
    /// </summary>
    public AESEncryptHelper()
    {

    }



    /// <summary>
    /// 使用自定义数据构造
    /// </summary>
    /// <param name="key"></param>
    /// <param name="iv"></param>
    /// <param name="cipherMode"></param>
    /// <param name="paddingMode"></param>
    /// <param name="blockSizeMode"></param>
    public AESEncryptHelper(string key, string iv = "", CipherMode cipherMode = CipherMode.ECB, PaddingMode paddingMode = PaddingMode.PKCS7, BlockSizeMode blockSizeMode = BlockSizeMode.S128)
    {
        this.key = key;
        this.cipherMode = cipherMode;
        this.paddingMode = paddingMode;
        this.blockSizeMode = blockSizeMode;
        if (cipherMode != CipherMode.ECB)//ECB不用设置IV
        {
            if (!string.IsNullOrEmpty(iv))
            {
                this.iv = iv;
            }
            if (iv.Length != (int)blockSizeMode / 8)
            {
                throw new Exception("iv的长度必须和块大小的关系为 iv.length = blockSize / 8");
            }
        }
        if (key.Length != (int)blockSizeMode / 8)
        {
            throw new Exception("key的长度必须和块大小的关系为 key.length = blockSize / 8");
        }
    }


    /// <summary>  
    /// AES加密
    /// </summary>
    public string AESEncrypt(string value)
    {

        byte[] keyArray = Encoding.UTF8.GetBytes(key);
        byte[] ivArray = Encoding.UTF8.GetBytes(iv);
        byte[] toEncryptArray = Encoding.UTF8.GetBytes(value);

        RijndaelManaged rDel = new RijndaelManaged();
        rDel.Key = keyArray;
        rDel.BlockSize = (int)blockSizeMode;
        if (cipherMode != CipherMode.ECB)
        {
            rDel.IV = ivArray;
        }
        rDel.Mode = cipherMode;
        rDel.Padding = paddingMode;

        ICryptoTransform cTransform = rDel.CreateEncryptor();
        byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

        return Convert.ToBase64String(resultArray, 0, resultArray.Length);
    }

    /// <summary>  
    /// AES解密  
    /// </summary>
    public string AESDecrypt(string value)
    {
        try
        {
            byte[] keyArray = Encoding.UTF8.GetBytes(key);
            byte[] ivArray = Encoding.UTF8.GetBytes(iv);

            byte[] toEncryptArray = Convert.FromBase64String(value);

            RijndaelManaged rDel = new RijndaelManaged();
            rDel.Key = keyArray;
            rDel.BlockSize = (int)blockSizeMode;
            if (cipherMode != CipherMode.ECB)
            {
                rDel.IV = ivArray;
            }
            rDel.Mode = cipherMode;
            rDel.Padding = paddingMode;

            ICryptoTransform cTransform = rDel.CreateDecryptor();
            byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

            return Encoding.UTF8.GetString(resultArray);
        }
        catch
        {
            return string.Empty;
        }
    }

}

调用

        string str = "Blm";
        AESEncryptHelper aesEnc = new AESEncryptHelper("BlmTest.........", "HR$2pIjHR$2pIj12");
        string encStr = aesEnc.AESEncrypt(str);
        Debug.Log("加密结果：" + encStr);
        string resultStr = aesEnc.AESDecrypt(encStr);
        Debug.Log("解密结果：" + resultStr);

效果展示