node-multi-hashing

Cryptocurrency hashing functions for node.js.

Usage

Install

npm install multi-hashing

So far this native Node.js addon can do the following hashing algos

var multiHashing = require('multi-hashing');

var algorithms = ['quark', 'x11', 'scrypt', 'scryptn', 'scryptjane', 'keccak', 'bcrypt', 'skein', 'blake'];

var data = new Buffer("7000000001e980924e4e1109230383e66d62945ff8e749903bea4336755c00000000000051928aff1b4d72416173a8c3948159a09a73ac3bb556aa6bfbcad1a85da7f4c1d13350531e24031b939b9e2b", "hex");

var hashedData = algorithms.map(function(algo){
    if (algo === 'scryptjane'){
        //scryptjane needs block.nTime and nChainStartTime (found in coin source)
        var yaCoinChainStartTime = 1367991200;
        var nTime = Math.round(Date.now() / 1000);
        return multiHashing[algo](data, nTime, yaCoinChainStartTime);
    }
    else{
        return multiHashing[algo](data);
    }
});


console.log(hashedData);
//<SlowBuffer 0b de 16 ef 2d 92 e4 35 65 c6 6c d8 92 d9 66 b4 3d 65 ..... >

//Another example...
var hashedScryptData = multiHashing.scrypt(new Buffer(80));

Credits

• NSA and NIST for creation or sponsoring creation of SHA2 and SHA3 algos
• Keccak - Guido Bertoni, Joan Daemen, Michaël Peeters, and Gilles Van Assche
• Skein - Bruce Schneier, Stefan Lucks, Niels Ferguson, Doug Whiting, Mihir Bellare, Tadayoshi Kohno, Jon Callas and Jesse Walker.
• BLAKE - Jean-Philippe Aumasson, Luca Henzen, Willi Meier, and Raphael C.-W. Phan
• Grøstl - Praveen Gauravaram, Lars Knudsen, Krystian Matusiewicz, Florian Mendel, Christian Rechberger, Martin Schläffer, and Søren S. Thomsen
• JH - Hongjun Wu
• Fugue - Shai Halevi, William E. Hall, and Charanjit S. Jutla
• scrypt - Colin Percival
• bcrypt - Niels Provos and David Mazières
• X11, Hefty1, Quark creators (they just mixed together a bunch of the above algos)