1 files changed, 227 insertions, 0 deletions
diff --git a/services/crypto/tests/unit/test_crypto_crypt.js b/services/crypto/tests/unit/test_crypto_crypt.js
new file mode 100644
index 0000000000..b79f2d8daa
--- /dev/null
+++ b/services/crypto/tests/unit/test_crypto_crypt.js
@@ -0,0 +1,227 @@
+const { WeaveCrypto } = ChromeUtils.import(
+  "resource://services-crypto/WeaveCrypto.js"
+);
+Cu.importGlobalProperties(["crypto"]);
+
+var cryptoSvc = new WeaveCrypto();
+
+add_task(async function test_key_memoization() {
+  let cryptoGlobal = cryptoSvc._getCrypto();
+  let oldImport = cryptoGlobal.subtle.importKey;
+  if (!oldImport) {
+    _("Couldn't swizzle crypto.subtle.importKey; returning.");
+    return;
+  }
+
+  let iv = cryptoSvc.generateRandomIV();
+  let key = await cryptoSvc.generateRandomKey();
+  let c = 0;
+  cryptoGlobal.subtle.importKey = function(
+    format,
+    keyData,
+    algo,
+    extractable,
+    usages
+  ) {
+    c++;
+    return oldImport.call(
+      cryptoGlobal.subtle,
+      format,
+      keyData,
+      algo,
+      extractable,
+      usages
+    );
+  };
+
+  // Encryption should cause a single counter increment.
+  Assert.equal(c, 0);
+  let cipherText = await cryptoSvc.encrypt("Hello, world.", key, iv);
+  Assert.equal(c, 1);
+  cipherText = await cryptoSvc.encrypt("Hello, world.", key, iv);
+  Assert.equal(c, 1);
+
+  // ... as should decryption.
+  await cryptoSvc.decrypt(cipherText, key, iv);
+  await cryptoSvc.decrypt(cipherText, key, iv);
+  await cryptoSvc.decrypt(cipherText, key, iv);
+  Assert.equal(c, 2);
+
+  // Un-swizzle.
+  cryptoGlobal.subtle.importKey = oldImport;
+});
+
+// Just verify that it gets populated with the correct bytes.
+add_task(async function test_makeUint8Array() {
+  ChromeUtils.import("resource://gre/modules/ctypes.jsm");
+
+  let item1 = cryptoSvc.makeUint8Array("abcdefghi", false);
+  Assert.ok(item1);
+  for (let i = 0; i < 8; ++i) {
+    Assert.equal(item1[i], "abcdefghi".charCodeAt(i));
+  }
+});
+
+add_task(async function test_encrypt_decrypt() {
+  // First, do a normal run with expected usage... Generate a random key and
+  // iv, encrypt and decrypt a string.
+  var iv = cryptoSvc.generateRandomIV();
+  Assert.equal(iv.length, 24);
+
+  var key = await cryptoSvc.generateRandomKey();
+  Assert.equal(key.length, 44);
+
+  var mySecret = "bacon is a vegetable";
+  var cipherText = await cryptoSvc.encrypt(mySecret, key, iv);
+  Assert.equal(cipherText.length, 44);
+
+  var clearText = await cryptoSvc.decrypt(cipherText, key, iv);
+  Assert.equal(clearText.length, 20);
+
+  // Did the text survive the encryption round-trip?
+  Assert.equal(clearText, mySecret);
+  Assert.notEqual(cipherText, mySecret); // just to be explicit
+
+  // Do some more tests with a fixed key/iv, to check for reproducable results.
+  key = "St1tFCor7vQEJNug/465dQ==";
+  iv = "oLjkfrLIOnK2bDRvW4kXYA==";
+
+  _("Testing small IV.");
+  mySecret = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXo=";
+  let shortiv = "YWJj";
+  let err;
+  try {
+    await cryptoSvc.encrypt(mySecret, key, shortiv);
+  } catch (ex) {
+    err = ex;
+  }
+  Assert.ok(!!err);
+
+  _("Testing long IV.");
+  let longiv = "gsgLRDaxWvIfKt75RjuvFWERt83FFsY2A0TW+0b2iVk=";
+  try {
+    await cryptoSvc.encrypt(mySecret, key, longiv);
+  } catch (ex) {
+    err = ex;
+  }
+  Assert.ok(!!err);
+
+  // Test small input sizes
+  mySecret = "";
+  cipherText = await cryptoSvc.encrypt(mySecret, key, iv);
+  clearText = await cryptoSvc.decrypt(cipherText, key, iv);
+  Assert.equal(cipherText, "OGQjp6mK1a3fs9k9Ml4L3w==");
+  Assert.equal(clearText, mySecret);
+
+  mySecret = "x";
+  cipherText = await cryptoSvc.encrypt(mySecret, key, iv);
+  clearText = await cryptoSvc.decrypt(cipherText, key, iv);
+  Assert.equal(cipherText, "96iMl4vhOxFUW/lVHHzVqg==");
+  Assert.equal(clearText, mySecret);
+
+  mySecret = "xx";
+  cipherText = await cryptoSvc.encrypt(mySecret, key, iv);
+  clearText = await cryptoSvc.decrypt(cipherText, key, iv);
+  Assert.equal(cipherText, "olpPbETRYROCSqFWcH2SWg==");
+  Assert.equal(clearText, mySecret);
+
+  mySecret = "xxx";
+  cipherText = await cryptoSvc.encrypt(mySecret, key, iv);
+  clearText = await cryptoSvc.decrypt(cipherText, key, iv);
+  Assert.equal(cipherText, "rRbpHGyVSZizLX/x43Wm+Q==");
+  Assert.equal(clearText, mySecret);
+
+  mySecret = "xxxx";
+  cipherText = await cryptoSvc.encrypt(mySecret, key, iv);
+  clearText = await cryptoSvc.decrypt(cipherText, key, iv);
+  Assert.equal(cipherText, "HeC7miVGDcpxae9RmiIKAw==");
+  Assert.equal(clearText, mySecret);
+
+  // Test non-ascii input
+  // ("testuser1" using similar-looking glyphs)
+  mySecret = String.fromCharCode(355, 277, 349, 357, 533, 537, 101, 345, 185);
+  cipherText = await cryptoSvc.encrypt(mySecret, key, iv);
+  clearText = await cryptoSvc.decrypt(cipherText, key, iv);
+  Assert.equal(cipherText, "Pj4ixByXoH3SU3JkOXaEKPgwRAWplAWFLQZkpJd5Kr4=");
+  Assert.equal(clearText, mySecret);
+
+  // Tests input spanning a block boundary (AES block size is 16 bytes)
+  mySecret = "123456789012345";
+  cipherText = await cryptoSvc.encrypt(mySecret, key, iv);
+  clearText = await cryptoSvc.decrypt(cipherText, key, iv);
+  Assert.equal(cipherText, "e6c5hwphe45/3VN/M0bMUA==");
+  Assert.equal(clearText, mySecret);
+
+  mySecret = "1234567890123456";
+  cipherText = await cryptoSvc.encrypt(mySecret, key, iv);
+  clearText = await cryptoSvc.decrypt(cipherText, key, iv);
+  Assert.equal(cipherText, "V6aaOZw8pWlYkoIHNkhsP1JOIQF87E2vTUvBUQnyV04=");
+  Assert.equal(clearText, mySecret);
+
+  mySecret = "12345678901234567";
+  cipherText = await cryptoSvc.encrypt(mySecret, key, iv);
+  clearText = await cryptoSvc.decrypt(cipherText, key, iv);
+  Assert.equal(cipherText, "V6aaOZw8pWlYkoIHNkhsP5GvxWJ9+GIAS6lXw+5fHTI=");
+  Assert.equal(clearText, mySecret);
+
+  key = "iz35tuIMq4/H+IYw2KTgow==";
+  iv = "TJYrvva2KxvkM8hvOIvWp3==";
+  mySecret = "i like pie";
+
+  cipherText = await cryptoSvc.encrypt(mySecret, key, iv);
+  clearText = await cryptoSvc.decrypt(cipherText, key, iv);
+  Assert.equal(cipherText, "DLGx8BWqSCLGG7i/xwvvxg==");
+  Assert.equal(clearText, mySecret);
+
+  key = "c5hG3YG+NC61FFy8NOHQak1ZhMEWO79bwiAfar2euzI=";
+  iv = "gsgLRDaxWvIfKt75RjuvFW==";
+  mySecret = "i like pie";
+
+  cipherText = await cryptoSvc.encrypt(mySecret, key, iv);
+  clearText = await cryptoSvc.decrypt(cipherText, key, iv);
+  Assert.equal(cipherText, "o+ADtdMd8ubzNWurS6jt0Q==");
+  Assert.equal(clearText, mySecret);
+
+  key = "St1tFCor7vQEJNug/465dQ==";
+  iv = "oLjkfrLIOnK2bDRvW4kXYA==";
+  mySecret = "does thunder read testcases?";
+  cipherText = await cryptoSvc.encrypt(mySecret, key, iv);
+  Assert.equal(cipherText, "T6fik9Ros+DB2ablH9zZ8FWZ0xm/szSwJjIHZu7sjPs=");
+
+  var badkey = "badkeybadkeybadkeybadk==";
+  var badiv = "badivbadivbadivbadivbad=";
+  var badcipher = "crapinputcrapinputcrapinputcrapinputcrapinp=";
+  var failure;
+
+  try {
+    failure = false;
+    clearText = await cryptoSvc.decrypt(cipherText, badkey, iv);
+  } catch (e) {
+    failure = true;
+  }
+  Assert.ok(failure);
+
+  try {
+    failure = false;
+    clearText = await cryptoSvc.decrypt(cipherText, key, badiv);
+  } catch (e) {
+    failure = true;
+  }
+  Assert.ok(failure);
+
+  try {
+    failure = false;
+    clearText = await cryptoSvc.decrypt(cipherText, badkey, badiv);
+  } catch (e) {
+    failure = true;
+  }
+  Assert.ok(failure);
+
+  try {
+    failure = false;
+    clearText = await cryptoSvc.decrypt(badcipher, key, iv);
+  } catch (e) {
+    failure = true;
+  }
+  Assert.ok(failure);
+});