加密查询字符串,包括键

Question

我有app使用查询字符串来传递页面周围的一些值,我发现了几个关于如何加密查询字符串中的值的例子,但问题是我的KEYS告诉更多关于查询字符串然后将所有整数转换为字符串的值.

有没有办法加密ASP.NET中的整个查询字符串,包括键和键值？

就像是:

Default.aspx?value1=40&value2=30&value3=20

至

 Default.aspx?56sdf78fgh90sdf4564k34klog5646l

谢谢!

Answer 1

有一个问题是上面的许多引用都忽略了,就在返回加密字符串之前,就是URL Encode(请参阅下面的字符串返回之前).我正在使用IIS 7.5,它会自动为你解码字符串,所以解密"应该"没问题.加密和解密代码如下所示.

public string EncryptQueryString(string inputText, string key, string salt)
{
    byte[] plainText = Encoding.UTF8.GetBytes(inputText);

    using (RijndaelManaged rijndaelCipher = new RijndaelManaged())
    {
        PasswordDeriveBytes secretKey = new PasswordDeriveBytes(Encoding.ASCII.GetBytes(key), Encoding.ASCII.GetBytes(salt));
        using (ICryptoTransform encryptor = rijndaelCipher.CreateEncryptor(secretKey.GetBytes(32), secretKey.GetBytes(16)))
        {
            using (MemoryStream memoryStream = new MemoryStream())
            {
                using (CryptoStream cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write))
                {
                    cryptoStream.Write(plainText, 0, plainText.Length);
                    cryptoStream.FlushFinalBlock();
                    string base64 = Convert.ToBase64String(memoryStream.ToArray());

                    // Generate a string that won't get screwed up when passed as a query string.
                    string urlEncoded = HttpUtility.UrlEncode(base64);
                    return urlEncoded;
                }
            }
        }
    }
}

public string DecryptQueryString(string inputText, string key, string salt)
        {
            byte[] encryptedData = Convert.FromBase64String(inputText);
            PasswordDeriveBytes secretKey = new PasswordDeriveBytes(Encoding.ASCII.GetBytes(key), Encoding.ASCII.GetBytes(salt));

            using (RijndaelManaged rijndaelCipher = new RijndaelManaged())
            {
                using (ICryptoTransform decryptor = rijndaelCipher.CreateDecryptor(secretKey.GetBytes(32), secretKey.GetBytes(16)))
                {
                    using (MemoryStream memoryStream = new MemoryStream(encryptedData))
                    {
                        using (CryptoStream cryptoStream = new CryptoStream(memoryStream, decryptor, CryptoStreamMode.Read))
                        {
                            byte[] plainText = new byte[encryptedData.Length];
                            cryptoStream.Read(plainText, 0, plainText.Length);
                            string utf8 = Encoding.UTF8.GetString(plainText);
                            return utf8;
                        }
                    }
                }
            }
        }

Answer 2

网上有很多例子.

他们中有一些:

如何加密asp.net中的查询字符串？

如何在asp.net中传递加密的查询字符串

http://www.codeproject.com/Articles/33350/Encrypting-Query-Strings

http://www.keyvan.ms/how-to-encrypt-query-string-parameters-in-asp-net

http://forums.asp.net/t/989552.aspx/1

现在你说你也喜欢加密密钥,实际上你要做的就是加密它们所有url行,然后你只需要阅读RawUrl后面的内容了什么？并解密它.