php BUG66564 crypt加密字符过长问题

来源：互联网发布：php逗号分割数组编辑：程序博客网时间：2024/06/08 17:15

PHP bug 66564 原文 https://bugs.php.net/bug.php?id=66564

本地测试了下此Bug

<?php$long = str_repeat('a', 72);var_dump(crypt($long . "a", '$2y$04$saltysaltysaltysaltytt'));var_dump(crypt($long . "b", '$2y$04$saltysaltysaltysaltytt'));var_dump(crypt($long . "c", '$2y$04$saltysaltysaltysaltytt'));$long = str_repeat('我', 24);var_dump(crypt($long . "a", '$2y$04$saltysaltysaltysaltytt'));var_dump(crypt($long . "b", '$2y$04$saltysaltysaltysaltytt'));var_dump(crypt($long . "c", '$2y$04$saltysaltysaltysaltytt'));

结果如下

string '$2y$04$saltysaltysaltysaltyte9usMwh4/IIx0al18sl5oEFVM2Z/XJ7q' (length=60)string '$2y$04$saltysaltysaltysaltyte9usMwh4/IIx0al18sl5oEFVM2Z/XJ7q' (length=60)string '$2y$04$saltysaltysaltysaltyte9usMwh4/IIx0al18sl5oEFVM2Z/XJ7q' (length=60)string '$2y$04$saltysaltysaltysaltyte2TUsnZ4FK4xRcHhRZV8xAYwjrjTPFye' (length=60)string '$2y$04$saltysaltysaltysaltyte2TUsnZ4FK4xRcHhRZV8xAYwjrjTPFye' (length=60)string '$2y$04$saltysaltysaltysaltyte2TUsnZ4FK4xRcHhRZV8xAYwjrjTPFye' (length=60)

所有网站是用crypt做加密的需要注意

最长英文字符是71个、中文字符是23个否则加密数据会有错误虽然被加密了但是不是正确的值

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