bcoin-native

The missing crypto and encoding bindings for node.js.

This module provides native bindings to all lowlevel optimizable things used in bitcoin.

Used in bcoin.

Functions

• hash(alg, data)
• hmac(alg, data)
• ripemd160(data)
• sha1(data)
• sha256(data)
• hash160(data)
• hash256(data)
• root256(left, right)
• toBase58(data)
• fromBase58(data)
• toBech32(hrp, version, hash)
• fromBech32(str)
• scrypt(pass, salt, n, r, p, klen)
• scryptAsync(pass, salt, n, r, p, klen)
• murmur3(data, seed)
• siphash(data, key)
• siphash256(data, key)
• cleanse(data)
• encipher(data, key, iv)
• decipher(data, key, iv)

Objects

• Poly1305()
  • #init(key)
  • #update(data)
  • #finish()
  • .verify(mac1, mac2)
  • .auth(data, key)
• ChaCha20()
  • #init(key?, iv?, counter?)
  • #initKey(key)
  • #initIV(iv, counter?)
  • #encrypt(data)
  • #getCounter()
  • #setCounter(counter)

Usage

var native = require('bcoin-native');
var data = Buffer.from('01020304', 'hex');
var key = Buffer.from('05060708', 'hex');

var hash1 = native.sha256(data);
var hash2 = native.hash256(data);

console.log('sha256: %s', hash1.toString('hex'));
console.log('double sha256: %s', hash2.toString('hex'));

Outputs:

sha256: 9f64a747e1b97f131fabb6b447296c9b6f0201e79fb3c5356e6c77e89b6a806a
double sha256: 8de472e2399610baaa7f84840547cd409434e31f5d3bd71e4d947f283874f9c0

Benchmarks

$ node bench.js
crypto.sha256: ops=100000, time=0.41668067, rate=239991.93435
native.sha256: ops=100000, time=0.328309021, rate=304591.08219
crypto.hash160: ops=100000, time=0.698852504, rate=143091.71024
native.hash160: ops=100000, time=0.32359362, rate=309029.57852
crypto.hash256: ops=100000, time=0.65909456, rate=151723.29749
native.hash256: ops=100000, time=0.313477282, rate=319002.38308
crypto.sha256hmac: ops=100000, time=0.589858488, rate=169532.18786
native.sha256hmac: ops=100000, time=0.444996526, rate=224720.85546
utils.toBase58: ops=100000, time=0.808880157, rate=123627.70818
native.toBase58: ops=100000, time=0.458057275, rate=218313.31027
utils.fromBase58: ops=100000, time=0.77960898, rate=128269.43066
native.fromBase58: ops=100000, time=0.746901487, rate=133886.46527
js poly1305.update: ops=31250, time=1.6195938239999998, rate=19294.96120
js poly1305.finish: ops=31250, time=2.9935169999999998, rate=10439.22583
c poly1305.update: ops=31250, time=0.184753504, rate=169144.28860
c poly1305.finish: ops=31250, time=1.434867264, rate=21779.01802
js murmur3: ops=1000000, time=4.714874642, rate=212094.71639
c murmur3: ops=1000000, time=0.412050096, rate=2426889.37512
js siphash256: ops=1000000, time=13.218189886, rate=75653.32384
c siphash256: ops=1000000, time=1.19912212, rate=833943.41854

License

Copyright (c) 2016, Christopher Jeffrey. (MIT License)

See LICENSE for more info.