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Add test vectors for hash algorithms
Test algorithms against vector data from NSRL (NIST): http://www.nsrl.nist.gov/testdata/
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‎test/node.js

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@@ -2,6 +2,7 @@ var test = require('tape');
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var crypto = require('crypto');
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var cryptoB = require('../');
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var fs = require('fs');
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function assertSame(name, fn) {
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test(name, function (t) {
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});
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});
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function pad(n, w) {
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n = n + ''; return new Array(w - n.length + 1).join('0') + n;
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}
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var vectors = fs.readdirSync(__dirname + '/vectors').sort().
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filter(function (t) { return t.match(/\.dat$/); }).
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map(function (t) { return fs.readFileSync(__dirname + '/vectors/' + t); });
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['md5', 'sha1', 'sha256'].forEach(function (algorithm) {
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test(algorithm, function (t) {
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function hash(data) { return cryptoB.createHash(algorithm).update(data).digest('hex'); }
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var hashes = fs.readFileSync(__dirname + '/vectors/byte-hashes.' + algorithm).toString().split(/\r?\n/);
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t.plan(vectors.length);
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for (var i = 0; i < vectors.length; i++) {
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t.equal(hash(vectors[i]), hashes[i], 'byte' + pad(i, 4) + '.dat');
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}
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});
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});
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test('randomBytes', function (t) {
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t.plan(5);

‎test/vectors/Readme.txt

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File formats:
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There are two files included for this byte-oriented test.
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One file contains the messages and the other file contains the hashes.
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The message files provided use "compact strings" to store the message values.
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Compact strings are used to represented the messages in a compact form.
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A compact string has the form
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z || b || n(1) || n(2) || ... || n(z)
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where z>=0 that represents the number of n, b is either 0 or 1, and
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each n(i) is a decimal integer representing a positive number.
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The length of the compact string is given by the summation of the n(i).
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The compact string is interpreted as the representation of the bit string
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consisting of b repeated n(1) times, followed by 1-b repeated n(2) times,
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followed by b repeated n(3) times, and so on.
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Example:
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M = 5 1 7 13 5 1 2
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where z = 5 and b = 1. Then the compact string M represents the bit string
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1111111000000000000011111011
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where 1 is repeated 7 times, 0 is repeated 13 times, 1 is repeated 5 times,
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0 is repeated 1 time, and 1 is repeated 2 times.
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‎test/vectors/byte-hashes.md5

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