zephinzer/authasher

var crypto = require('crypto');
var DEFAULT = require('./default');

module.exports = {
    generateCorruptedReturnObject: function() {
        return {
            valid: false,
            expired: false,
            corrupt: true
        };
    },

    generateDefaultOptions: function(_options) {
        var options = _options || {};
        return {
            algorithm: options.algorithm || DEFAULT.ALGORITHM,
            hashingFunction: options.hashing || DEFAULT.HASHING,
            inputEncoding: options.inputEncoding || DEFAULT.INPUT_ENCODING,
            iterations: options.iterations || DEFAULT.ITERATIONS,
            outputEncoding: options.outputEncoding || DEFAULT.OUTPUT_ENCODING,
            keyLength: options.keyLength || DEFAULT.KEY_LENGTH
        }
    },

    generatedSaltedHash: function(password, salt, iterations, keyLength, hashingFunction, outputEncoding) {
        return crypto.pbkdf2Sync(
            password, salt, iterations, keyLength, hashingFunction
        ).toString(outputEncoding);
    },

    getSegments: function(segmentedBlock, delimiter, correctLength) {
        var segments = segmentedBlock.split(delimiter);
        if(segments.length !== correctLength) {
            throw EvalError();
        } else {
            return segments;
        }
    }
};