benchmark: add rsa/aes-gcm performance test

PR-URL: https://github.com/iojs/io.js/pull/1325
Reviewed-By: Fedor Indutny <fedor@indutny.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

1 files changed, 38 insertions, 0 deletions

diff --git a/benchmark/crypto/aes-gcm-throughput.js b/benchmark/crypto/aes-gcm-throughput.js
new file mode 100644
index 0000000000..65e1713f0e
--- /dev/null
+++ b/benchmark/crypto/aes-gcm-throughput.js
@@ -0,0 +1,38 @@
+var common = require('../common.js');
+var crypto = require('crypto');
+var keylen = {'aes-128-gcm': 16, 'aes-192-gcm': 24, 'aes-256-gcm': 32};
+var bench = common.createBenchmark(main, {
+  n: [500],
+  cipher: ['aes-128-gcm', 'aes-192-gcm', 'aes-256-gcm'],
+  len: [1024, 4 * 1024, 16 * 1024, 64 * 1024, 256 * 1024, 1024 * 1024]
+});
+
+function main(conf) {
+  var message = (new Buffer(conf.len)).fill('b');
+  var key = crypto.randomBytes(keylen[conf.cipher]);
+  var iv = crypto.randomBytes(12);
+  var associate_data = (new Buffer(16)).fill('z');
+  bench.start();
+  AEAD_Bench(conf.cipher, message, associate_data, key, iv, conf.n, conf.len);
+}
+
+function AEAD_Bench(cipher, message, associate_data, key, iv, n, len) {
+  var written = n * len;
+  var bits = written * 8;
+  var mbits = bits / (1024 * 1024);
+
+  for (var i = 0; i < n; i++) {
+    var alice = crypto.createCipheriv(cipher, key, iv);
+    alice.setAAD(associate_data);
+    var enc = alice.update(message);
+    alice.final();
+    var tag = alice.getAuthTag();
+    var bob = crypto.createDecipheriv(cipher, key, iv);
+    bob.setAuthTag(tag);
+    bob.setAAD(associate_data);
+    var clear = bob.update(enc);
+    bob.final();
+  }
+
+  bench.end(mbits);
+}