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cardano-crypto.js

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cardano-crypto.js

input-output-hk/cardano-crypto compiled to pure javascript using Emscripten

  • 2.0.0
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  • npm
  • Socket score

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cardano-crypto.js

  • input-output-hk/cardano-crypto
  • haskell-crypto/cryptonite
  • grigorig/chachapoly

compiled to pure javascript using Emscripten. This is a collection of cryptolibraries useful for doing Cardano cryptography, eliminating the need for many dependencies.

examples

signing

var lib = require('cardano-crypto.js')

var mnemonic = 'logic easily waste eager injury oval sentence wine bomb embrace gossip supreme'
var walletSecret = lib.walletSecretFromMnemonic(mnemonic)
var msg = new Buffer('hello there')
var sig = lib.sign(msg, walletSecret)

deriving child keys (hardened derivation, you can choose either derivation mode 1 or 2)

var lib = require('cardano-crypto.js')

var mnemonic = 'logic easily waste eager injury oval sentence wine bomb embrace gossip supreme'
var parentWalletSecret = lib.walletSecretFromMnemonic(mnemonic)
var childWalletSecret = lib.derivePrivate(parentWalletSecret, 0x80000001, 1)

deriving child public keys (nonhardened derivation, you can choose either derivation mode 1 or 2)

var lib = require('cardano-crypto.js')

var mnemonic = 'logic easily waste eager injury oval sentence wine bomb embrace gossip supreme'
var parentWalletSecret = lib.walletSecretFromMnemonic(mnemonic)
var parentWalletPublicKey = parentWalletSecret.slice(64, 128)
var childWalletSecret = lib.derivePublic(parentWalletPublicKey, 1, 1)

available functions

  • Buffer sign(Buffer msg, Buffer walletSecret)
  • Bool verify(Buffer msg, Buffer publicKey, Buffer sig)
  • Buffer walletSecretFromMnemonic(String mnemonic)
  • Buffer derivePrivate(Buffer parentKey, int index, int derivationMode)
  • Buffer derivePublic(Buffer parentExtPubKey, int index, int derivationMode)
  • Buffer blake2b256(Buffer input)
  • Buffer sha3_256(Buffer input)
  • Buffer chacha20poly1305Encrypt(Buffer input, Buffer key, Buffer nonce)
  • Buffer chacha20poly1305Decrypt(Buffer input, Buffer key, Buffer nonce)
  • Buffer cardanoMemoryCombine(Buffer input, String password)

We encourage you to take a look at test/index.js to see how the functions above should be used.

development

  • Install emscripten
  • run npm install
  • run npm run build

tests

  • run npm run test

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Package last updated on 16 Jul 2018

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