Php 使用mycrypt_cfb时出现错误结果
以下是加密和解密函数:Php 使用mycrypt_cfb时出现错误结果,php,Php,以下是加密和解密函数: function encrypt($key, $plain_text) { $plain_text = trim($plain_text); $iv = substr(md5($key), 0,mcrypt_get_iv_size (MCRYPT_CAST_256,MCRYPT_MODE_CFB)); $c_t = mcrypt_cfb (MCRYPT_CAST_256, $key, $plain_text, MCRYPT_ENCRYPT, $iv
function encrypt($key, $plain_text) {
$plain_text = trim($plain_text);
$iv = substr(md5($key), 0,mcrypt_get_iv_size (MCRYPT_CAST_256,MCRYPT_MODE_CFB));
$c_t = mcrypt_cfb (MCRYPT_CAST_256, $key, $plain_text, MCRYPT_ENCRYPT, $iv);
return trim(chop(base64_encode($c_t)));
}
function decrypt($key, $c_t) {
$c_t = trim(chop(base64_decode($c_t)));
$iv = substr(md5($key), 0,mcrypt_get_iv_size (MCRYPT_CAST_256,MCRYPT_MODE_CFB));
$p_t = mcrypt_cfb (MCRYPT_CAST_256, $key, $c_t, MCRYPT_DECRYPT, $iv);
return trim(chop($p_t));
}
现在:
结果是100018,缺少最后一个1。为什么?解决方案是:
从decrypt中删除trim&chop调用
答案在KiNgMaR的评论中,我现在无法测试,但请尝试从解密的第一行删除修剪和切碎调用。请。谢谢。从decrypt中删除修剪和切碎调用是正确的。谢谢你,KiNgMaR
$key = "11111";
$str = "1000181";
echo decrypt($key,encrypt($key,$str));