@dataparty/crypto

dataparty cryptography

• NPM - npmjs.com/package/@dataparty/crypto
• Code - github.com/datapartyjs/dataparty-crypto
• Support - ko-fi/dataparty

It slices, it dices, and it enciphers

Features

• Based on TweetNaCL
• Password derived keys
  • argon2id - See example
  • pbkdf2 - See example - warning outdate
• Mnemonic derived keys seed phrases - See example
  • bip39 - Phrases are generated using bip39.

Identity

Creating a random key pair

const dataparty_crypto = require('@dataparty/crypto')

const alice = new dataparty_crypto.Identity({id:'alice'})
const bob = new dataparty_crypto.Identity({id:'bob'})

Messages

let encryptedMessage = new dataparty_crypto.Message({
    msg: {
        data: 'hello world'
    }
})

Encryption

//! Bob encrypts the message
await encryptedMessage.encrypt(bob, alice.toMini())

sendToAlice( encryptedMessage.toJSON() )

Decryption

//! Later alice decrypt a message
const decryptedMessage = new dataparty_crypto.Message(msgFromBob)

await decryptedMessage.decrypt(alice)

console.log(`alice read: ${JSON.stringify(decryptedMessage.msg,null,2)}`)

//! Another way to verify that bob sent the message
await decryptedMessage.assertVerified(bob)

Signing

//! Alice signs a message
const signedMsg = await alice.sign({a:'hello world'})

sendToAlice( signedMsg.toJSON() )

Verifying

const signedMsg = new dataparty_crypto.Message(msfFromAlice)

//! Verify that Alice sent the message
const verified = await alice.verify(signedMsg)
console.log('verified?', verified)

//! Another way to verify that alice sent the message
await signedMsg.assertVerified(alice)

Password key derivation

const password = 'super-strong-password'
const salt = await dataparty_crypto.Routines.generateSalt() //! Salt would be read from disk after 1st run

const key = await dataparty_crypto.Routines.createKeyFromPasswordArgon2(
    argon2,
    "supersecretpassword123",
    salt
)

Mnemonic derived keys seed phrases

const phrase = await dataparty_crypto.Routines.generateMnemonic()

let key = await dataparty_crypto.Routines.createKeyFromMnemonic(phrase)

Developing

• npm build
• npm watch
• npm test

Support

Buy us a coffee!

• ko-fi/dataparty