为什么不使用System.Security.Cryptography中的加密功能对敏感的cookie名称和值进行加密和解密？您可以编写一些实用程序功能来轻松管理它。实用程序功能示例：

private static void SetEncryptedCookie(string name, string value)
{
    var encryptName = SomeEncryptionMethod(name);
    Response.Cookies[encryptName].Value = SomeEncryptionMethod(value);
    //set other cookie properties here, expiry &c.
    //Response.Cookies[encryptName].Expires = ...
}

private static string GetEncryptedCookie(string name)
{
    //you'll want some checks/exception handling around this
    return SomeDecryptionMethod(
               Response.Cookies[SomeDecryptionMethod(name)].Value);
}