Bcryptjs

Basic start up

https://www.npmjs.com/package/bcryptjs

Terminal

npm install bcryptjs
npm install --save @types/bcryptjs

Hash and compare

Basically, we can use the bcrypt to hash the plain password to hashed value.

hashed.ts

import { bcrypt } from 'bcryptjs';
 
const salt = 12; // Default is 10
 
// Hash data
const hash: string = bcrypt.hashSync("data_that_want_to_hash", salt);
 
// Compart hashed and incoming data
const isMatch: boolean = bcrypt.compareSync("incoming_data", hash);

For password checking

Basically, we can use the bcrypt to hash the plain password to hashed value.

hashed.ts

import { bcrypt } from 'bcryptjs';
 
const salt = 12; 
 
function hashPlainPassword(plainPassword: string): string{
    return bcrypt.hashSync(plainPassword, salt);
}
 
function checkPasswordHash(userInputPlainPassword: string, hashedValue: string): boolean{
    return bcrypt.compareSync(userInputPlainPassword, hash);
}

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