![]() ![]() The Node.js crypto module provides cryptographic functions to help you secure your Node.js app. This is exactly what the Node.js crypto module does. Cybercriminals cannot decrypt encrypted data if they do not have the key. For instance, cryptography can be symmetric-key (such as hashing), public-key (such as encrypting or decrypting), and so on.Īn end party that receives encrypted data can decrypt it to plain text for their consumption. The kind of encryption you employ on your application depends on your needs. You, can also encrypt other user data so that it can be decrypted during transmission. When malicious actors get ahold of your database, they cannot decode the encrypted information. With cryptography in Node.js, you can hash passwords and store them in the database so that data cannot be converted to plain text after it is hashed it can only be verified. This way, only the sender and receiver of the information understand its content. Git to download and set up git in your working environmentĬryptography is the process of converting plain text into unreadable text and vice-versa.Node.js installed in your working environment.To follow along with this tutorial, you should have: We’ll build a sample app to demonstrate how to encrypt and decrypt usernames and passwords in Node.js using crypto. In this tutorial, we’ll go over the basics of cryptography in Node.js and demonstrate how to use the Node.js crypto module to secure user data. This way, when cybercriminals get hold of your database, all they see are random characters. The best solution is to employ cryptography on sensitive information before sending it to the database. Passwords can either be hashed or encrypted hashing is a one-way encryption method. That’s why the credentials in the database have to be decrypted while comparing them to the user’s input. This cannot work if the passwords in the database - which are encrypted into gibberish - are used to compare the password/email the user inputs. However, to login into their accounts, the user’s password and username are verified against sets of credentials that are already in the database. What extra steps can you take to protect user information?įor instance, when a user creates an account in an application, their passwords and usernames need to be kept securely in the database, possibly by encrypting. What would happen to user data if criminals were to get ahold of your database? Cybercrime is a persistent threat, and bad actors lurk at every corner seeking to pass malicious scripts to clone your database. I also contribute to OSS in my free time. I love to share knowledge about my transition from marine engineering to software development to encourage people who love software development and don't know where to begin. Then if you choose a higher iteration count you could just update your protocol version.Ukpai Ugochi Follow I'm a full-stack JavaScript developer on the MEVN stack. You could even use that to replace the salt size, iterations, hash type etc. I was afraid that you were implementing PBKDF2 yourself, but you seem to be correctly using the proper crypto calls.Ī different idea of handling this (for you to ponder over).ĭefine your protocol somewhere and store a protocol version in your hash string. salt before hash) - storing the hash last makes most sense to me. You could use just a counter to retrieve the various parts after split, and at least create the variables in order (e.g.As there are no checks on the results after the split, the hash string representation could be altered without notice (impact depends on how the code is used).Calling split multiple times is not a good idea, call it once and store the intermediate result.Compared to PBKDF2 almost nothing takes a lot of time. hash = om(hash, 'hex') part ( timingSafeEqual only accepts buffer). If you use it as a (encryption) key then you should avoid text, as it can be hard to destroy the result. Yes, that's OK, if you use this to store password hashes. Is using text ok, or should I use and save buffer for this?. ![]() hash = om(hash, 'hex') part (that's because timingSafeEqual only accepts buffer). I have to convert from text back in Buffer in the verifyPassword.Is it ok if I save the combined from the hashPassword as text in.This works, but, here is what bothers me : Let equals = crypto.timingSafeEqual(hash, verify) (stack : node 8.11.1 + express 4.16.3 + PostgreSQL 10) const crypto = require('crypto') I wrote the following functions, based on various examples and the aforementioned APIs and functions. I use the pbkdf2 and the randomBytes for salting, and the timingSafeEqual to check for the password validity when logging in. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |