cryptops

Crypto building blocks.

$ npm i @stellar-fox/cryptops

index

• foreword
• documentation
• play in your browser
• use the package
  • install
  • play in node.js
  • example use in your code
• use the source
• namespace
• tests
• support
• license

foreword

Cryptography is hard. Cryptography is important. Cryptography should be more accessible.

This library aims to tackle the last of the above sencences - it provides coherent API to use in browser as well as in server environment.

All the "heavy lifting" was done by the authors of the following, magnificent projects:

• Stanford Javascript Crypto Library
• TweetNaCl.js
• crypto-browserify
• scrypt-js

cryptops just wraps and combines some of their parts without adding anything that might lessen the security level.

Go ahead, inspect the source and see for yourself.

documentation

API Reference

play in your browser

RunKit with @stellar-fox/cryptops

• encrypting text using a passphrase:

  https://runkit.com/xcmats/cryptops.passphraseencrypt

• decrypting text using a passphrase:

  https://runkit.com/xcmats/cryptops.passphrasedecrypt

use the package

install

$ mkdir playground
$ cd playground/
$ npm init
...
$ npm i @stellar-fox/cryptops
...

Three builds are provided:

• UMD (in dist directory)
• CommonJS (in lib directory)
• ES6 (in es directory)

play in node.js

$ node
>

cryptops = require("@stellar-fox/cryptops")

example use in your code

For utf8-string <-> bytes <-> hex-string <-> b64-string encoding and decoding @xcmats/js-toolbox can be used.

import { passphraseEncrypt } from "@stellar-fox/cryptops"
import { newAddress } from "@stellar-fox/redshift"
import { codec } from "@xcmats/js-toolbox"
 
let
    myPassphrase = "H0cus P0cus Open Sesam3 4brakadabra",
    myPreciousSecret = newAddress().keypair.secret()
 
passphraseEncrypt(myPassphrase, codec.stringToBytes(myPreciousSecret))
    .then((ciphertext) => {
        console.log("Now I can sleep peacefully: ", ciphertext)
    })

use the source

$ git clone git@github.com:stellar-fox/cryptops.git
Cloning into 'cryptops'...
$ cd cryptops
$ npm i
$ npm start
Compiling for 'production' ...
Hash: b6a8d4e126caf6f893b8
Version: webpack 4.40.2
Time: 2988ms
Built at: 09/15/2019 5:14:14 PM
      Asset      Size  Chunks             Chunk Names
cryptops.js  24.9 KiB       0  [emitted]  cryptops
Entrypoint cryptops = cryptops.js
[0] external "@xcmats/js-toolbox" 42 bytes {0} [built]
[1] external "sjcl" 42 bytes {0} [built]
[2] external "tweetnacl" 42 bytes {0} [built]
[3] external "@babel/runtime/regenerator" 42 bytes {0} [built]
[4] external "@babel/runtime/helpers/asyncToGenerator" ...
[5] external "crypto-browserify" 42 bytes {0} [built]
[6] ./package.json 4.26 KiB {0} [built]
[7] external "scrypt-js" 42 bytes {0} [built]
[8] ./src/index.js 11.5 KiB {0} [built]

namespace

cryptops

{ random: [Function],
  sha256: [Function],
  salt32: [Function: salt32],
  genKey: [Function: genKey],
  sha512: { [Function] hashLength: 64 },
  salt64: [Function: salt64],
  deriveKey: [Function: deriveKey],
  timestamp: [Function: timestamp],
  genUUID: [Function: genUUID],
  decodeUUID: [Function: decodeUUID],
  salsaNonce: [Function: salsaNonce],
  salsaEncrypt: [Function: salsaEncrypt],
  salsaDecrypt: [Function: salsaDecrypt],
  aesNonce: [Function: aesNonce],
  aesEncrypt: [Function: aesEncrypt],
  aesDecrypt: [Function: aesDecrypt],
  encrypt: { [Function: encrypt] },
  decrypt: { [Function: decrypt] },
  passphraseEncrypt: [Function: passphraseEncrypt],
  passphraseDecrypt: [Function: passphraseDecrypt],
  version: '1.0.6' }

tests

$ npm run test
 
  uuid test
    ✓ should generate uuid
    ✓ should decode uuid
 
  passphrase encrypt/decrypt test
    ✓ should generate content (5386ms)
    ✓ should encrypt (2407ms)
    ✓ should have different ciphertexts
    ✓ should decrypt (7258ms)
    ✓ should match content (67ms)
    ✓ should not decrypt with a wrong passphrase (2922ms)
 
 
  8 passing (18s)

support

You can support this project via stellar network:

• Payment address: xcmats*keybase.io
• Stellar account ID: GBYUN4PMACWBJ2CXVX2KID3WQOONPKZX2UL4J6ODMIRFCYOB3Z3C44UZ

license

cryptops are released under the Apache License, Version 2.0. See the LICENSE for more details.