Simple Wrapper to access Node.js Hash functions provided by the buildin Crypto API

example.js

// hex output - base64 or binary also possible!
var Hash = require('./Hash')('hex');

console.log(Hash.sha1('Hello World'));
// 0a4d55a8d778e5022fab701977c5d840bbc486d0

console.log(Hash.sha384({
    title: 'Hello',
    content: 'World!'
}));
// 1cf1e80e46390143ac12b27916b0c7bb6e3f484119b3ed69cb42d587e8aa0308ea43b29ea4af0eb53742fb7e7e0550c8

Hash.js

var _crypto = require('crypto');

// generic string hashing
function hash(input, algo, type){
    // string input ?
    if (typeof input !== 'string'){
        input = JSON.stringify(input);
    }

    // create hash algo
    var sum = _crypto.createHash(algo);

    // set content
    sum.update(input);

    // calculate hashsum
    return sum.digest(type);
}

// export all function
module.exports = function(outputType){
    // default value
    outputType = outputType || 'hex';

    return {
        md5: function(input) {
            return hash(input, 'md5', outputType);
        },

        sha1: function(input) {
            return hash(input, 'sha1', outputType);
        },

        sha256: function(input) {
            return hash(input, 'sha256', outputType);
        },

        sha384: function(input) {
            return hash(input, 'sha384', outputType);
        },

        sha512: function(input) {
            return hash(input, 'sha512', outputType);
        }
    }
};