sdfsdfs

node_modules/hmac-drbg/test/drbg-test.js

@@ -0,0 +1,91 @@
+'use strict';
+
+const assert = require('assert');
+const HmacDRBG = require('../');
+const hash = require('hash.js');
+
+describe('Hmac_DRBG', () => {
+  it('should support hmac-drbg-sha256', () => {
+    function doDrbg(opt) {
+      const drbg = HmacDRBG({
+        hash: hash.sha256,
+        entropy: opt.entropy,
+        entropyEnc: 'utf8',
+        nonce: opt.nonce,
+        nonceEnc: 'utf8',
+        pers: opt.pers,
+        persEnc: 'utf8'
+      });
+      return drbg.generate(opt.size, 'hex');
+    }
+
+    const test = [
+      {
+        entropy: 'totally random0123456789',
+        nonce: 'secret nonce',
+        pers: 'my drbg',
+        size: 32,
+        res: '018ec5f8e08c41e5ac974eb129ac297c5388ee1864324fa13d9b15cf98d9a157'
+      },
+      {
+        entropy: 'totally random0123456789',
+        nonce: 'secret nonce',
+        pers: null,
+        size: 32,
+        res: 'ed5d61ecf0ef38258e62f03bbb49f19f2cd07ba5145a840d83b134d5963b3633'
+      }
+    ];
+    for (let i = 0; i < test.length; i++)
+      assert.equal(doDrbg(test[i]), test[i].res);
+  });
+
+  describe('NIST vector', function() {
+    require('./fixtures/hmac-drbg-nist.json').forEach(function (opt) {
+      it('should not fail at ' + opt.name, function() {
+        const drbg = HmacDRBG({
+          hash: hash.sha256,
+          entropy: opt.entropy,
+          nonce: opt.nonce,
+          pers: opt.pers
+        });
+
+        let last;
+        for (let i = 0; i < opt.add.length; i++) {
+          let add = opt.add[i];
+          last = drbg.generate(opt.expected.length / 2, 'hex', add);
+        }
+        assert.equal(last, opt.expected);
+      });
+    });
+  });
+
+  describe('reseeding', function() {
+    it('should reseed', function() {
+      const entropy = 'totally random string with many chars that I typed ' +
+                      'in agony';
+      const nonce = 'nonce';
+      const pers = 'pers';
+
+      const original = HmacDRBG({
+        hash: hash.sha256,
+        entropy,
+        nonce,
+        pers
+      });
+      const reseeded = HmacDRBG({
+        hash: hash.sha256,
+        entropy,
+        nonce,
+        pers
+      });
+
+      assert.strictEqual(original.generate(32, 'hex'),
+                         reseeded.generate(32, 'hex'));
+
+      reseeded.reseed('another absolutely random string');
+
+      assert.notEqual(original.generate(32, 'hex'),
+                      reseeded.generate(32, 'hex'));
+    });
+  });
+});