3DES加密解密

C#3DES加密解密，JAVA、PHP可用

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

namespace TT.Utilities.Encrypt
{
    public class DES3
    {
        /// <summary>
        /// utf-8编码
        /// 加密模式ECB，填充类型PKCS7
        /// </summary>
        /// <param name="str_content"></param>
        /// <param name="str_keys">24位key</param>
        /// <returns></returns>
        public static string DES3_Encrypt(string str_content, string str_keys)
        #region
        {
            Encoding encoding = Encoding.UTF8;

            byte[] content = encoding.GetBytes(str_content);
            byte[] keys = encoding.GetBytes(str_keys);

            TripleDESCryptoServiceProvider tdsc = new TripleDESCryptoServiceProvider();

            //指定密匙长度，默认为192位
            tdsc.KeySize = 128;
            //使用指定的key和IV（加密向量）
            tdsc.Key = keys;
            //tdsc.IV = IV;
            //加密模式，偏移
            tdsc.Mode = CipherMode.ECB;
            tdsc.Padding = PaddingMode.PKCS7;
            //进行加密转换运算
            ICryptoTransform ct = tdsc.CreateEncryptor();
            //8很关键，加密结果是8字节数组
            byte[] results = ct.TransformFinalBlock(content, 0, content.Length);

            string base64String = Convert.ToBase64String(results);
            return base64String;
        }
        #endregion

        /// <summary>
        /// utf-8编码
        /// 加密模式ECB，填充类型PKCS7
        /// </summary>
        /// <param name="base64_content"></param>
        /// <param name="str_keys">24位key</param>
        /// <returns></returns>
        public static string DES3_Decrypt(string base64_content, string str_keys)
        #region
        {
            Encoding encoding = Encoding.UTF8;

            byte[] content = Convert.FromBase64String(base64_content);
            byte[] keys = encoding.GetBytes(str_keys);

            TripleDESCryptoServiceProvider tdsc = new TripleDESCryptoServiceProvider();

            //指定密匙长度，默认为192位
            tdsc.KeySize = 128;
            //使用指定的key和IV（加密向量）
            tdsc.Key = keys;
            //tdsc.IV = IV;
            //加密模式，偏移
            tdsc.Mode = CipherMode.ECB;
            tdsc.Padding = PaddingMode.PKCS7;
            //进行加密转换运算
            ICryptoTransform ct = tdsc.CreateDecryptor();
            //8很关键，加密结果是8字节数组
            byte[] results = ct.TransformFinalBlock(content, 0, content.Length);

            string oriString = encoding.GetString(results);
            return oriString;
        }
        #endregion
    }
}