How to implement Laravel cryptographic algorithm using JS

Laravel is a PHP-based web application framework that is widely used to build efficient web applications. JS is one of the most popular scripting languages ​​and is used in many aspects of web development. In this article, we will learn how to implement Laravel cryptographic algorithm using JS.

In Laravel, the Bcrypt algorithm is used for password storage and verification. This is a password hashing algorithm based on the Blowfish encryption algorithm. Its advantage is that it not only encrypts the password, but also adds some additional random strings when the password is stored, making it more difficult for an attacker to guess the encrypted password.

Let’s take a look at how to use JS to implement Laravel’s cryptographic algorithm. First of all, you need to use the CryptoJS library of JS, which is a library of hash algorithms such as AES, DES, TripleDES, RC4, SHA1, and MD5 implemented in pure JavaScript. This library is very practical. Install it first:

npm install crypto-js

Introduce it into the code:

var CryptoJS = require("crypto-js");

Then define a function that passes the password string and salt value as parameters and returns the encrypted Password:

function laravelHash(password, salt) {
    var hash = CryptoJS.SHA256(password + salt);
    return hash.toString(CryptoJS.enc.Hex);
}

The above code actually uses the SHA-256 hashing algorithm and salting to encrypt the password. Use CryptoJS.SHA256() to hash the password string and salt and return a 256-bit encrypted string. Then use toString(CryptoJS.enc.Hex) to convert the encrypted string into a hexadecimal string. Finally, just return the encrypted password.

Next, in order to make the encryption stronger, we can add multiple salt operations. The following is the code to add multiple salts:

function laravelHash(password, salt, rounds) {
    var hash = CryptoJS.SHA512(password + salt);
    for (var i = 0; i < rounds; i++) {
        var roundHash = CryptoJS.SHA512(hash + salt + i);
        hash = hash.concat(roundHash);
    }
    return hash.toString(CryptoJS.enc.Hex);
}

In the above code, the password string and salt value are first encrypted using the SHA-512 hash algorithm, and then looped multiple times (the number of loops is passed Parameter rounds passed in), each time it is encrypted using SHA-512 and password hash value and salt value and number of iterations, and finally the new hash value is concatenated with the original hash value, and finally using toString(CryptoJS.enc .Hex) outputs the encrypted hash value.

In this way, we can use the above code to implement the Laravel hash algorithm. At the same time, the above code that adds multiple salts makes the encryption stronger, making the password more secure.

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