求解C# AES加密用java 解密

wrxangeline 2022-09-07 20:38:23

目前有个项目，对方是用C# AES加密，需要我用java解密，一直没搞定。C#的加密源码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;

/// <summary>
/// AES 的摘要说明
/// </summary>
public class AES
{
    public AES()
    {
        //
        // TODO: 在此处添加构造函数逻辑
        //
    }

    /// <summary>
    ///  AES 加密
    /// </summary>
    /// <param name="str"></param>
    /// <param name="key"></param>
    /// <returns></returns>
    public static string AesEncrypt(string str)
    {
        string _key = "abcd";
        LogHelper.WriteLog(typeof(AES), _key);       
        if (string.IsNullOrEmpty(str)) return null;
        Byte[] toEncryptArray = Encoding.UTF8.GetBytes(str);

        System.Security.Cryptography.RijndaelManaged rm = new System.Security.Cryptography.RijndaelManaged
        {
            Key = Encoding.UTF8.GetBytes(_key),
            Mode = System.Security.Cryptography.CipherMode.ECB,
            Padding = System.Security.Cryptography.PaddingMode.PKCS7
        };

        System.Security.Cryptography.ICryptoTransform cTransform = rm.CreateEncryptor();
        Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

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

    /// <summary>
    ///  AES 解密
    /// </summary>
    /// <param name="str"></param>
    /// <param name="key"></param>
    /// <returns></returns>
    public static string AesDecrypt(string str)
    {
        string _key = "abcd";
        LogHelper.WriteLog(typeof(AES), _key);       
        if (string.IsNullOrEmpty(str)) return null;
        Byte[] toEncryptArray = Convert.FromBase64String(str);

        System.Security.Cryptography.RijndaelManaged rm = new System.Security.Cryptography.RijndaelManaged
        {
            Key = Encoding.UTF8.GetBytes(_key),
            Mode = System.Security.Cryptography.CipherMode.ECB,
            Padding = System.Security.Cryptography.PaddingMode.PKCS7
        };

        System.Security.Cryptography.ICryptoTransform cTransform = rm.CreateDecryptor();
        Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);

        return Encoding.UTF8.GetString(resultArray);
    }
}

请教怎么能用java解密！！！

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