c#中base64加密解密

    /// &lt;summary&gt;
    /// 实现Base64加密解密
    /// &lt;/summary&gt;
    public class Base64
    {
        /// &lt;summary&gt;
        /// Base64加密
        /// &lt;/summary&gt;
        /// &lt;param name="codeName"&gt;加密采用的编码方式&lt;/param&gt;
        /// &lt;param name="source"&gt;待加密的明文&lt;/param&gt;
        /// &lt;returns&gt;&lt;/returns&gt;
        public static string EncodeBase64(Encoding encode, string source)
        {
            string codestr = "";
            byte[] bytes = encode.GetBytes(source);
            try
            {
                codestr = Convert.ToBase64String(bytes);
            }
            catch
            {
                codestr = source;
            }
            return codestr;
        }

        /// &lt;summary&gt;
        /// Base64加密，采用utf8编码方式加密
        /// &lt;/summary&gt;
        /// &lt;param name="source"&gt;待加密的明文&lt;/param&gt;
        /// &lt;returns&gt;加密后的字符串&lt;/returns&gt;
        public static string EncodeBase64(string source)
        {
            return EncodeBase64(Encoding.UTF8, source);
        }

        /// &lt;summary&gt;
        /// Base64解密
        /// &lt;/summary&gt;
        /// &lt;param name="codeName"&gt;解密采用的编码方式，注意和加密时采用的方式一致&lt;/param&gt;
        /// &lt;param name="result"&gt;待解密的密文&lt;/param&gt;
        /// &lt;returns&gt;解密后的字符串&lt;/returns&gt;
        public static string DecodeBase64(Encoding encode, string result)
        {
            string codestr = "";
            byte[] bytes = Convert.FromBase64String(result);
            try
            {
                codestr = encode.GetString(bytes);
            }
            catch
            {
                codestr = result;
            }
            return codestr;
        }

        /// &lt;summary&gt;
        /// Base64解密，采用utf8编码方式解密
        /// &lt;/summary&gt;
        /// &lt;param name="result"&gt;待解密的密文&lt;/param&gt;
        /// &lt;returns&gt;解密后的字符串&lt;/returns&gt;
        public static string DecodeBase64(string result)
        {
            return DecodeBase64(Encoding.UTF8, result);
        }
    }

/// <summary>

/// 实现Base64加密解密

/// </summary>

public class Base64

{

/// <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 encode, string source)

{

string codestr = "";

byte[] bytes = encode.GetBytes(source);

try

{

codestr = Convert.ToBase64String(bytes);

}

catch

{

codestr = source;

}

return codestr;

}

/// <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>加密后的字符串</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>解密后的字符串</returns>

public static string DecodeBase64(Encoding encode, string result)

{

string codestr = "";

byte[] bytes = Convert.FromBase64String(result);

try

{

codestr = encode.GetString(bytes);

}

catch

{

codestr = result;

}

return codestr;

}

/// <summary>

/// Base64解密，采用utf8编码方式解密

/// </summary>

/// <param name="result">待解密的密文</param>

/// <returns>解密后的字符串</returns>

public static string DecodeBase64(string result)

{

return DecodeBase64(Encoding.UTF8, result);

}

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c#中base64加密解密

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