使用ASP.Net加密Cookie[4]

——此文章摘自《ASPNET网络数据库开发实例精解》定价￥ 特价￥ 详细>>

public static void SetEncryptedCookie(String keyString valueString)

{ //设置使用DES加密后的Cookie

key = EncryptStringEncrypt(key);

valueString = EncryptStringEncrypt(valueString);

SetCookie(keyvalueString);

}

public static void SetEncryptedCookie(String key

String valueStringDateTime expires)

{ //设置使用DES加密后的Cookie并设置Cookie的有效时间

key = EncryptStringEncrypt(key);

valueString = EncryptStringEncrypt(valueString);

SetCookie(keyvalueStringexpires);

}

public static String GetTripleDESEncryptedCookieValue(String key)

{ //获取使用TripleDES解密后的Cookie

key = EncryptStringEncryptTripleDES(key);

String valueString = GetCookieValue(key);

valueString = EncryptStringDecryptTripleDES(valueString);

return(valueString);

}

public static String GetEncryptedCookieValue(String key)

{ //获取使用DES解密后的Cookie

key = EncryptStringEncrypt(key);

String valueString = GetCookieValue(key);

valueString = EncryptStringDecrypt(valueString);

return(valueString);

}

public static HttpCookie GetCookie(String key)

{ //通过关键字获取Cookie

key = HttpContextCurrentServerUrlEncode(key);

return(HttpContextCurrentRequestCookiesGet(key));

}

public static String GetCookieValue(String key)

{ //通过关键字获取Cookie的value

String valueString = GetCookie(key)Value;

valueString = HttpContextCurrentServerUrlDecode(valueString);

return(valueString);

}

}

．设计页面EncryptCookiesaspx

把应用程序Example__的默认页面WebFormaspx重命名为 EncryptCookiesaspx并在页面上添加个Label控件它们的名称分别为TripleDESCookie EncryptCookie和myCookie分别用来显示使用TripleDES加密后的Cookie的值使用DES加密后的Cookie的值和 Cookie的原始值页面EncryptCookiesaspx的设计界面如图所示

页面EncryptCookiesaspx的HTML设计代码如下

<asp:Label ID=myCookie Runat=server></asp:Label>

<asp:Label ID=EncryptCookie Runat=server></asp:Label>

<asp:Label ID=TripleDESCookie Runat=server></asp:Label>

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