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这个地方为什么要截取md5呢 #32

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liuwave opened this issue Dec 31, 2018 · 0 comments

liuwave commented Dec 31, 2018 •

edited

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think-captcha/src/Captcha.php

Line 314 in 54c8a51

private function authcode($str)

/* 加密验证码 */
private function authcode($str)
{
    $key = substr(md5($this->seKey), 5, 8);
    $str = substr(md5($str), 8, 10);
    return md5($key . $str);
}

为什么要截取6-14位和 9-18位呢？请大佬解惑，谢谢。

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