crypto: refactoring internals, add WebCrypto

Fixes: nodejs/node#678
Refs: nodejs/node#26854

Signed-off-by: James M Snell <jasnell@gmail.com>

PR-URL: nodejs/node#35093
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

.github/CODEOWNERS

@@ -59,7 +59,7 @@
 /lib/crypto.js @nodejs/crypto
 /lib/tls.js @nodejs/crypto @nodejs/net
 /src/node_crypto* @nodejs/crypto
-/src/node_crypto_common* @nodejs/crypto @nodejs/quic
+/src/crypto/* @nodejs/crypto @nodejs/quic
 
 # http
 

benchmark/crypto/hkdf.js

@@ -0,0 +1,44 @@
+'use strict';
+
+const common = require('../common.js');
+const assert = require('assert');
+const {
+  hkdf,
+  hkdfSync
+} = require('crypto');
+
+const bench = common.createBenchmark(main, {
+  sync: [0, 1],
+  size: [10, 64, 1024],
+  key: ['a', 'secret', 'this-is-a-much-longer-secret'],
+  salt: ['', 'salt'],
+  info: ['', 'info'],
+  hash: ['sha256', 'sha512'],
+  n: [1e3],
+});
+
+function measureSync(n, size, salt, info, hash, key) {
+  bench.start();
+  for (let i = 0; i < n; ++i)
+    hkdfSync(hash, key, salt, info, size);
+  bench.end(n);
+}
+
+function measureAsync(n, size, salt, info, hash, key) {
+  let remaining = n;
+  function done(err) {
+    assert.ifError(err);
+    if (--remaining === 0)
+      bench.end(n);
+  }
+  bench.start();
+  for (let i = 0; i < n; ++i)
+    hkdf(hash, key, salt, info, size, done);
+}
+
+function main({ n, sync, size, salt, info, hash, key }) {
+  if (sync)
+    measureSync(n, size, salt, info, hash, key);
+  else
+    measureAsync(n, size, salt, info, hash, key);
+}

benchmark/crypto/keygen.js

@@ -0,0 +1,71 @@
+'use strict';
+
+const common = require('../common.js');
+const assert = require('assert');
+const {
+  generateKeyPair,
+  generateKeyPairSync
+} = require('crypto');
+
+const bench = common.createBenchmark(main, {
+  method: ['rsaSync', 'rsaAsync', 'dsaSync', 'dsaAsync'],
+  n: [1e2],
+});
+
+const methods = {
+  rsaSync(n) {
+    bench.start();
+    for (let i = 0; i < n; ++i) {
+      generateKeyPairSync('rsa', {
+        modulusLength: 1024,
+        publicExponent: 0x10001
+      });
+    }
+    bench.end(n);
+  },
+
+  rsaAsync(n) {
+    let remaining = n;
+    function done(err) {
+      assert.ifError(err);
+      if (--remaining === 0)
+        bench.end(n);
+    }
+    bench.start();
+    for (let i = 0; i < n; ++i)
+      generateKeyPair('rsa', {
+        modulusLength: 512,
+        publicExponent: 0x10001
+      }, done);
+  },
+
+  dsaSync(n) {
+    bench.start();
+    for (let i = 0; i < n; ++i) {
+      generateKeyPairSync('dsa', {
+        modulusLength: 512,
+        divisorLength: 256,
+      });
+    }
+    bench.end(n);
+  },
+
+  dsaAsync(n) {
+    let remaining = n;
+    function done(err) {
+      assert.ifError(err);
+      if (--remaining === 0)
+        bench.end(n);
+    }
+    bench.start();
+    for (let i = 0; i < n; ++i)
+      generateKeyPair('dsa', {
+        modulusLength: 512,
+        divisorLength: 256,
+      }, done);
+  },
+};
+
+function main({ n, method }) {
+  methods[method](n);
+}

benchmark/crypto/webcrypto-digest.js

@@ -0,0 +1,58 @@
+'use strict';
+
+const common = require('../common.js');
+const {
+  createHash,
+  webcrypto: {
+    subtle,
+    getRandomValues
+  }
+} = require('crypto');
+
+const bench = common.createBenchmark(main, {
+  sync: ['createHash', 'subtle'],
+  data: [10, 20, 50, 100],
+  method: ['SHA-1', 'SHA-256', 'SHA-384', 'SHA-512'],
+  n: [1e3],
+});
+
+const kMethods = {
+  'SHA-1': 'sha1',
+  'SHA-256': 'sha256',
+  'SHA-384': 'sha384',
+  'SHA-512': 'sha512'
+};
+
+// This benchmark only looks at clock time and ignores factors
+// such as event loop delay, event loop utilization, and memory.
+// As such, it is expected that the synchronous legacy method
+// will always be faster in clock time.
+
+function measureLegacy(n, data, method) {
+  method = kMethods[method];
+  bench.start();
+  for (let i = 0; i < n; ++i) {
+    createHash(method).update(data).digest();
+  }
+  bench.end(n);
+}
+
+function measureSubtle(n, data, method) {
+  const ec = new TextEncoder();
+  data = ec.encode(data);
+  const jobs = new Array(n);
+  bench.start();
+  for (let i = 0; i < n; i++)
+    jobs[i] = subtle.digest(method, data);
+  Promise.all(jobs).then(() => bench.end(n)).catch((err) => {
+    process.nextTick(() => { throw err; });
+  });
+}
+
+function main({ n, sync, data, method }) {
+  data = getRandomValues(Buffer.alloc(data));
+  switch (sync) {
+    case 'createHash': return measureLegacy(n, data, method);
+    case 'subtle': return measureSubtle(n, data, method);
+  }
+}