Transliterate - warwickfoster/qurantools GitHub Wiki

File: app/library/hash.php

Purpose

The provided code snippet implements a PHP function called hash_password() for password hashing and a function called match_hash() that simply echoes a message.

Hashing Process

• The hash_password() function uses the Blowfish algorithm with a cost parameter of 10.
• It generates a random salt and prefixes it with the Blowfish algorithm information.
• The password is then hashed using the crypt() function with the generated salt.

Verification

• The match_hash() function simply echoes the message "OK!".

Usage

The hash_password() function can be used to hash a password. The returned hash value can then be stored securely in a database.

Additional Notes

• The cost parameter of the Blowfish algorithm affects the security of the hash. A higher cost value results in a more secure hash but takes longer to generate.
• The random_bytes() function is used to generate a cryptographically secure salt.
• The crypt() function is used to hash the password with the Blowfish algorithm and the salt.
• The $2a$ prefix in the salt indicates the Blowfish algorithm and the cost parameter.

Example

// Hash a password
$password = "password123";
$hash = hash_password($password);

// Store the hash value securely in a database

// Verify the password
if (password_verify($password, $hash)) {
    // Password matches
} else {
    // Password does not match
}