NetSkycn.Security/Base64Provider.cs

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using System;
using System.Collections.Generic;
using System.Text;

namespace NetSkycn.Security
{
    /// <summary>
    /// 实现Base64加密解密
    /// </summary>
    public sealed class Base64Provider
    {
        /// <summary>
        /// Base64加密
        /// </summary>
        /// <param name="codeName">加密采用的编码方式</param>
        /// <param name="source">待加密的明文</param>
        /// <returns></returns>
        public static string EncodeBase64(Encoding encoding, string source)
        {
            if (string.IsNullOrEmpty(source))
            {
                throw new ArgumentNullException("source", "不能为空");
            }
            string encode = "";
            byte[] bytes = encoding.GetBytes(source);
            try
            {
                encode = Convert.ToBase64String(bytes);
            }
            catch
            {
                encode = source;
            }
            return encode;
        }

        /// <summary>
        /// Base64加密，采用utf8编码方式加密
        /// </summary>
        /// <param name="source">待加密的明文</param>
        /// <returns></returns>
        public static string EncodeBase64(string source)
        {
            return EncodeBase64(Encoding.UTF8, source);
        }

        /// <summary>
        /// Base64解密
        /// </summary>
        /// <param name="codeName">解密采用的编码方式，注意和加密时采用的方式一致</param>
        /// <param name="result">待解密的密文</param>
        /// <returns></returns>
        public static string DecodeBase64(Encoding encoding, string result)
        {
            if (string.IsNullOrEmpty(result))
            {
                throw new ArgumentNullException("result", "不能为空");
            }
            string decode = "";
            byte[] bytes = Convert.FromBase64String(result);