使用python/bcryp在用户集合的mongodb中将密码保存为salted hash

Question

我想生成一个salted password散列并将其存储在名为users的MongoDB集合中，如下所示：

users_doc = { 
    "username": "James",
    "password": "<salted_hash_password>"
}

我不知道如何使用Bcrypt生成散列密码，然后当我登录flask应用程序时，能够检查散列是否与MongoDB中存储的散列密码匹配。

Answer 1

您可以使用下面的散列密码。

app.post("/register", function(req, res){
    var type = req.body.type
    var newUser = new Student({
        username: req.body.username,
        gender: req.body.gender,
        rollnumber: req.body.rollnumber,
        dob: req.body.dob,
        email: req.body.email,
        type: req.body.type,
        password: req.body.password
    })

    req.checkBody('username','UserName is Required').notEmpty();
    req.checkBody('rollnumber','Roll Number is Required').notEmpty();
    req.checkBody('email','Email Required').notEmpty();
    req.checkBody('email','Email Invalid').isEmail();
    req.checkBody('password','Password is Required').notEmpty();
    req.checkBody('password1','Passwords do not match').equals(req.body.password);

    var errors = req.validationErrors();
    if(errors){
        res.render('Sregister', {errors: errors});
    }else{
    bcrypt.genSalt(10, function(err,  salt){
        bcrypt.hash(newUser.password, salt, function(err, hash){
            if(!err){
                newUser.password = hash;
            }
            newUser.save(function(err){
                if(!err){
                    console.log("success in reg");
                    res.redirect("/student/login")
                }
            })
        })
    })

并在登录时使用以下选项比较密码。

passport.use('student', new LocalStrategy(function(username, password, done){
    var query = {username: username};
    Student.findOne(query, function(err, student){
        if(err) throw err;
        if(!student){
            return done(null, false);
        }
        bcrypt.compare(password,student.password, function(err, isMatch){
            if(err) throw err;
            if(isMatch)
                return done(null, student);
            else
                return done(null,false);
        })
    })
}))