1 files changed, 28 insertions, 0 deletions
diff --git a/services/crypto/tests/unit/test_crypto_deriveKey.js b/services/crypto/tests/unit/test_crypto_deriveKey.js
new file mode 100644
index 000000000..00af474cb
--- /dev/null
+++ b/services/crypto/tests/unit/test_crypto_deriveKey.js
@@ -0,0 +1,28 @@
+Components.utils.import("resource://services-crypto/WeaveCrypto.js");
+
+function run_test() {
+  let cryptoSvc = new WeaveCrypto();
+  // Extracted from test_utils_deriveKey.
+  let pp = "secret phrase";
+  let salt = "RE5YUHpQcGl3bg==";   // btoa("DNXPzPpiwn")
+
+  // 16-byte, extract key data.
+  let k = cryptoSvc.deriveKeyFromPassphrase(pp, salt, 16);
+  do_check_eq(16, k.length);
+  do_check_eq(btoa(k), "d2zG0d2cBfXnRwMUGyMwyg==");
+
+  // Test different key lengths.
+  k = cryptoSvc.deriveKeyFromPassphrase(pp, salt, 32);
+  do_check_eq(32, k.length);
+  do_check_eq(btoa(k), "d2zG0d2cBfXnRwMUGyMwyroRXtnrSIeLwSDvReSfcyA=");
+  let encKey = btoa(k);
+
+  // Test via encryption.
+  let iv = cryptoSvc.generateRandomIV();
+  do_check_eq(cryptoSvc.decrypt(cryptoSvc.encrypt("bacon", encKey, iv), encKey, iv), "bacon");
+
+  // Test default length (32).
+  k = cryptoSvc.deriveKeyFromPassphrase(pp, salt);
+  do_check_eq(32, k.length);
+  do_check_eq(encKey, btoa(k));
+}