php - 如何在 php 中解密散列密码？使用 password_hash() 方法散列的密码

Question

我想解密通过php的password_hash()方法加密后的加密密码

<?php

    $password = 12345;
    $hashed_password = password_hash($password, PASSWORD_DEFAULT);

?>

在上面的代码中，我想将 $hashed_pa​​ssword 解密为 12345。我该怎么做。

Answer 1

你不需要

The used algorithm, cost and salt are returned as part of the hash. Therefore, all information that's needed to verify the hash is included in it. This allows the password_verify() function to verify the hash without needing separate storage for the salt or algorithm information.

    $passwordEnteredFirstTime = '12345';
    $passwordEnteredSecondTime = '12345';

    $passwordHash = password_hash($passwordEnteredFirstTime, PASSWORD_BCRYPT);
    $passIsValid = password_verify($passwordEnteredSecondTime, $passwordHash);
    echo $passIsValid ? 'correct password' : 'wrong password';