关于使用php生成加密的zip文件
phpmyadmin里面有个zip.lib.php,可以生成zip文件,可是不能加密。那位大哥知道如何加密?(我说的加密是指在解压该文件的时候回要求输入解压密码)。
网上找了好多,基本上都是借用winrar或者zip通过命令行加密,有没有通过php生成加密的zip文件的?
现在怎么不能选专家了,还想请唠叨大哥看看呢。。。
------解决方案--------------------
帮顶!!!!!
------解决方案--------------------
1 现有的操作zip的php提供的函数分为两大类,一是ZipArchive 一是zip,没有发现有对文件加密码的功能.
2 最简单的方式就是用winrar或者zip通过命令行加密,这个你还不选择.
3 另外就是分析加密和未加密后的文件,通过文件读写的方式操作,这个可行性不太高,而且对实现技术要求很高.
------解决方案--------------------
似乎不能加密,加密使用其它技術實現
------解决方案--------------------
加密規則自己定議啊,最簡單的有字符轉換了,比如一個"aaaaa",加密後你想讓它變"bbbbb"。
/**
* Passport 加密函数
*
* @param string 等待加密的原字串
* @param string 私有密匙(用于解密和加密)
*
* @return string 原字串经过私有密匙加密后的结果
*/
function passport_encrypt($txt, $key)
{
// 使用随机数发生器产生 0~32000 的值并 MD5()
srand((double)microtime() * 1000000);
$encrypt_key = md5(rand(0, 32000));
// 变量初始化
$ctr = 0;
$tmp = '';
// for 循环,$i 为从 0 开始,到小于 $txt 字串长度的整数
for($i = 0; $i {
// 如果 $ctr = $encrypt_key 的长度,则 $ctr 清零
$ctr = $ctr == strlen($encrypt_key) ? 0 : $ctr;
// $tmp 字串在末尾增加两位,其第一位内容为 $encrypt_key 的第 $ctr 位,
// 第二位内容为 $txt 的第 $i 位与 $encrypt_key 的 $ctr 位取异或。然后 $ctr = $ctr + 1
$tmp .= $encrypt_key[$ctr].($txt[$i] ^ $encrypt_key[$ctr++]);
}
// 返回结果,结果为 passport_key() 函数返回值的 base65 编码结果
return base64_encode(passport_key($tmp, $key));
}
/**
* Passport 解密函数
*
* @param string 加密后的字串
* @param string 私有密匙(用于解密和加密)
*
* @return string 字串经过私有密匙解密后的结果
*/
function passport_decrypt($txt, $key)
{
// $txt 的结果为加密后的字串经过 base64 解码,然后与私有密匙一起,
// 经过 passport_key() 函数处理后的返回值
$txt = passport_key(base64_decode($txt), $key);
// 变量初始化
$tmp = '';
// for 循环,$i 为从 0 开始,到小于 $txt 字串长度的整数
for ($i = 0; $i {
// $tmp 字串在末尾增加一位,其内容为 $txt 的第 $i 位,
// 与 $txt 的第 $i + 1 位取异或。然后 $i = $i + 1
$tmp .= $txt[$i] ^ $txt[++$i];
}
// 返回 $tmp 的值作为结果
return $tmp;
}
/**
* Passport 密匙处理函数
*
* @param string 待加密或待解密的字串
* @param string 私有密匙(用于解密和加密)
*
* @return string 处理后的密匙
*/
function passport_key($txt, $encrypt_key)
{
// 将 $encrypt_key 赋为 $encrypt_key 经 md5() 后的值
$encrypt_key = md5($encrypt_key);
// 变量初始化
$ctr = 0;
$tmp = '';
// for 循环,$i 为从 0 开始,到小于 $txt 字串长度的整数
for($i = 0; $i {
// 如果 $ctr = $encrypt_key 的长度,则 $ctr 清零
$ctr = $ctr == strlen($encrypt_key) ? 0 : $ctr;
// $tmp 字串在末尾增加一位,其内容为 $txt 的第 $i 位,
// 与 $encrypt_key 的第 $ctr + 1 位取异或。然后 $ctr = $ctr + 1
$tmp .= $txt[$i] ^ $encrypt_key[$ctr++];
}
// 返回 $tmp 的值作为结果
return $tmp;
}
/**
* Passport 信息(数组)编码函数
*
* @param array 待编码的数组
*
* @return string 数组经编码后的字串

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