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How to use the compareSync function from bcryptjs

Find comprehensive JavaScript bcryptjs.compareSync code examples handpicked from public code repositorys.

bcryptjs.compareSync is a function in the bcryptjs library that compares a plaintext password to a hashed password using the bcrypt algorithm.

usersController.js

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    oldData: req.body,
  });
}
//Comparamos input contra hash
console.log(userToLogin);
let passwordCheck = bcryptjs.compareSync(
  req.body.password,
  userToLogin.password
);
if (passwordCheck) {

+ 4 other calls in file

loginValidation.js

GitHub: nicorey89/Grupo_9_ARknight

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    body("password")
    .custom((value, { req }) => {
        let user = users.find(user => user.email === req.body.email);


        return bcrypt.compareSync(value, user.password);
    })
    .withMessage("Contraseña inválida")
]

+ 3 other calls in file

How does bcryptjs.compareSync work?

In the bcryptjs library, bcryptjs.compareSync is a function that compares a plaintext password to a hashed password using the bcrypt algorithm. The function takes two arguments: the first argument is the plaintext password that you want to compare to the hashed password, and the second argument is the hashed password that you want to compare against. The bcryptjs.compareSync function works by first extracting the salt and hash values from the hashed password. It then hashes the plaintext password using the extracted salt value and the bcrypt algorithm, and compares the resulting hash to the hash value extracted from the hashed password. If the two hashes match, the function returns true, indicating that the plaintext password matches the hashed password. If the hashes do not match, the function returns false, indicating that the plaintext password does not match the hashed password. Here's an example implementation of bcryptjs.compareSync that demonstrates how the function works: javascript Copy code {{{{{{{ const bcrypt = require('bcryptjs'); const plaintextPassword = 'password123'; const hashedPassword = '$2a$10$ZlTtTJrBdHu/eL1INzNCk.4/EQ8z4C9MmqeqfzZryFbIY8S72aS5m'; const result = bcrypt.compareSync(plaintextPassword, hashedPassword); if (result) { console.log('Password matches!'); } else { console.log('Password does not match!'); } In this example, we first import the bcryptjs library. We then define a plaintext password plaintextPassword and a hashed password hashedPassword. We call bcrypt.compareSync(plaintextPassword, hashedPassword) to compare the plaintext password to the hashed password. If the plaintext password matches the hashed password, the function returns true, indicating that the passwords match. If the plaintext password does not match the hashed password, the function returns false, indicating that the passwords do not match. Finally, we log a message to the console indicating whether the password matches or not. Overall, bcryptjs.compareSync provides a secure way to compare plaintext passwords to hashed passwords, allowing you to verify user passwords and ensure that they are authenticating with the correct credentials.

AuthController.js

GitHub: ViFigueiredo/Formacao_Node

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User.findOne({ where: { email } }).then(user => {
    if (user != undefined) { // se existir usuario com este email

        // faz o hash da senha inserida em login e compara com a hash do banco
        let correct = bcrypt.compareSync(password, user.password);

        if (correct) {
            req.session.user = {
                id: user.id,

+ 4 other calls in file

user.model.js

GitHub: AbdulMalek-swe/booking_task

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  next();
});


userSchema.methods.comparePassword = function (password, hash) {
  const isPasswordValid = bcrypt.compareSync(password, hash);
  return isPasswordValid;
};


const User = mongoose.model("User", userSchema);

+ 3 other calls in file

Ai Example

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const bcrypt = require("bcryptjs");

const plaintextPassword = "password123";
const hashedPassword =
  "$2a$10$ZlTtTJrBdHu/eL1INzNCk.4/EQ8z4C9MmqeqfzZryFbIY8S72aS5m";

const result = bcrypt.compareSync(plaintextPassword, hashedPassword);

if (result) {
  console.log("Password matches!");
} else {
  console.log("Password does not match!");
}

In this example, we first import the bcryptjs library. We then define a plaintext password plaintextPassword and a hashed password hashedPassword. We call bcrypt.compareSync(plaintextPassword, hashedPassword) to compare the plaintext password to the hashed password. If the plaintext password matches the hashed password, the function returns true, indicating that the passwords match. If the plaintext password does not match the hashed password, the function returns false, indicating that the passwords do not match. Finally, we log a message to the console indicating whether the password matches or not. Overall, bcryptjs.compareSync provides a secure way to compare plaintext passwords to hashed passwords, allowing you to verify user passwords and ensure that they are authenticating with the correct credentials.

auth.js

GitHub: kabutoshinki/football_web_nodejs

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console.log(user);
if (!user) {
  errors.push({ msg: "User Name or Password incorrect please try again" });
  return res.status(401).json({ errors });
} else {
  const isPasswordCorrect = await bcrypt.compareSync(req.body.password, user.password);
  console.log(isPasswordCorrect);
  if (!isPasswordCorrect) {
    errors.push({ msg: "User Name or Password incorrect please try again" });
    return res.status(401).json({ errors });

+ 11 other calls in file

User.js

GitHub: Marko221285/social-network-app

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const attemptedUser = await usersCollection.findOne({
  username: this.data.username,
});
if (
  attemptedUser &&
  bcrypt.compareSync(this.data.password, attemptedUser.password)
) {
  // access to user email address
  this.data = attemptedUser;
  this.getAvatar();

userApiController.js

GitHub: hernadar/demiparte

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loginProcess: (req,res) => {
    
    db.User.findOne({ where: { email: req.body.email } })
        .then(function (userToLogin) { 
            if(userToLogin) {
                let isOkThePassword = bcryptjs.compareSync(req.body.password, userToLogin.password);
                if (isOkThePassword) {
                    delete userToLogin.password;
        req.session.userLogged = userToLogin;
                    if(req.body.remember_user) {

+ 4 other calls in file

express_server.js

GitHub: adam-kowalczuk/tinyurl

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if (!existentUser) {
  return res.status(403).send("User not found. Please <a href=\"/login\">log in</a> or <a href=\"/register\">register</a> to view URLs");
};

const result = bcrypt.compareSync(password, existentUser.password);

if (!result) {
  return res.status(403).send("Invalid password. Please try and <a href=\"/login\">log in</a> again.");
}

UsersController.js

GitHub: ArielDmX/Blog

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var email = req.body.email;
var password = req.body.password;

User.findOne({where:{email: email}}). then( user => {
    if(user != undefined){
        var correct = bcrypt.compareSync(password, user.password);
        if(correct){
            req.session.user = {
                id: user.id,
                email: user.email

+ 2 other calls in file

auth.js

GitHub: Soulmaers/kursorgps

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}
else {
    const row = JSON.parse(JSON.stringify(rows))
    console.log(row)
    row.map(rw => {
        const resulty = bcrypt.compareSync(req.body.password, rw.password)
        //req.body.password== rw.password
        if (resulty) {
            console.log(rw.name)
            const token = jwt.sign({

index.controller.js

GitHub: amazingchandan/api-dark-mount-dentist

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    })
}
//console.log("user information : ", user);
//console.log("user status : ", user.status);
var userInfo = {};
let result = bcrypt.compareSync(req.body.password, user.password);
if (!result) {
    return res.send({
        success: false,
        message: messages.INVALID_PASSWORD

userController.js

GitHub: syeef-test/expense_backend_aws

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if (typeof user !== "undefined" && user.length > 0) {

  //console.log(user[0].password);
  //used bycryptjs insted of bycrypt as bycrypt is not instaling
  const match = await bcrypt.compareSync(req.body.password, user[0].password);
  //console.log(match);
  if (match) {
    //console.log(user[0]);
    //console.log(generateAccessToken(user[0].id,user[0].name,user[0].ispremiumuser));

adminController.js

GitHub: chaitanya201/Crypto-bancx-backend

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const isAdminExists = await adminModel.findOne({ email: email });
if (!isAdminExists) {
  console.log("email is wrong");
  return next(new AppError(err, 400));
}
const isPasswordCorrect = bcrypt.compareSync(
  password,
  isAdminExists.password
);
if (!isPasswordCorrect) {

+ 3 other calls in file

auth.controller.js

GitHub: RHRABIN/backend

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    });
}

// step 4: if user password is not correct then return
// const isPasswordValid = user.comparePassword(password, user.password);
const isPasswordValid = bcrypt.compareSync(password, user.password);

// step 5: if password is not correct then return
if (!isPasswordValid) {
    return res.status(403).json({

index.js

GitHub: mohamedkhaled12/thesis-project

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app.post('/login', async (req,res) =>{
    mongoose.connect(process.env.MONGO_URL);
    const {email,password} = req.body;
    const userDoc = await User.findOne({email:email});
    if(userDoc){
        const passOK = bcrypt.compareSync(password,userDoc.password)
        if(passOK){
            jwt.sign({
                email:userDoc.email,
                 id:userDoc._id, name:userDoc.name},jwtSecret,{},(err,token) =>{

authService.js

GitHub: ibukun-oyeniyi/TODO-APP

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function verifyUser({email,password},userData){
   if(userData===undefined){
      return false
   }
   else {
      const isPasswordCorrect = bcrypt.compareSync(password, userData.password)
      if (!isPasswordCorrect) return false
      else{
        return true;
      }

+ 3 other calls in file

User.js

GitHub: Shrek1891/backBlog

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User.prototype.login = function() {
  return new Promise((resolve, reject) => {
    this.cleanUp()
    usersCollection.findOne({username: this.data.username}).then((attemptedUser) => {
      if (attemptedUser && bcrypt.compareSync(this.data.password, attemptedUser.password)) {
        this.data = attemptedUser
        this.getAvatar()
        resolve("Congrats!")
      } else {

+ 4 other calls in file

helpers.js

GitHub: OscarMankiewicz/tinyapp

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    }
    return undefined;
}


function checkPassword(password, hashedPassword) {
    return bcrypt.compareSync(password, hashedPassword);
}


function getUser(req) {
    const userId = req.session.user_id;

host.model.js

GitHub: Omega-me/testdeploy

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hostSchema.methods.checkPassword = async function (
  candidatePassword,
  password
) {
  return bcrypt.compareSync(candidatePassword, password);
};


hostSchema.methods.passwordChangetAfter = function (JwtTimestamp) {
  if (this.passwordChangetAt) {

+ 2 other calls in file

controllerLogin.js

GitHub: Presley14/ProjetoYUGIOH

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var senha = req.body.senha

User.findOne({where: {email: email}}).then(user=>{

    if(user != undefined){
        var correta = bcryptjs.compareSync(senha, user.password)

        if(correta){
            req.session.user = {
                id: user.id,

+ 2 other calls in file

Other functions in bcryptjs

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