The Tor Browser: services/crypto/tests/unit/test_crypto

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 let WeaveCryptoModule = Cu.import("resource://services-crypto/WeaveCrypto.js");

     3 let cryptoSvc = new WeaveCrypto();

     5 function run_test() {

     6   if (this.gczeal) {

     7     _("Running crypto random tests with gczeal(2).");

     8     gczeal(2);

     9   }

    11   // Test salt generation.

    12   var salt;

    14   salt = cryptoSvc.generateRandomBytes(0);

    15   do_check_eq(salt.length, 0);

    16   salt = cryptoSvc.generateRandomBytes(1);

    17   do_check_eq(salt.length, 4);

    18   salt = cryptoSvc.generateRandomBytes(2);

    19   do_check_eq(salt.length, 4);

    20   salt = cryptoSvc.generateRandomBytes(3);

    21   do_check_eq(salt.length, 4);

    22   salt = cryptoSvc.generateRandomBytes(4);

    23   do_check_eq(salt.length, 8);

    24   salt = cryptoSvc.generateRandomBytes(8);

    25   do_check_eq(salt.length, 12);

    27   // sanity check to make sure salts seem random

    28   var salt2 = cryptoSvc.generateRandomBytes(8);

    29   do_check_eq(salt2.length, 12);

    30   do_check_neq(salt, salt2);

    32   salt = cryptoSvc.generateRandomBytes(1024);

    33   do_check_eq(salt.length, 1368);

    34   salt = cryptoSvc.generateRandomBytes(16);

    35   do_check_eq(salt.length, 24);

    38   // Test random key generation

    39   var keydata, keydata2, iv;

    41   keydata  = cryptoSvc.generateRandomKey();

    42   do_check_eq(keydata.length, 44);

    43   keydata2 = cryptoSvc.generateRandomKey();

    44   do_check_neq(keydata, keydata2); // sanity check for randomness

    45   iv = cryptoSvc.generateRandomIV();

    46   do_check_eq(iv.length, 24);

    48   cryptoSvc.algorithm = WeaveCryptoModule.AES_256_CBC;

    49   keydata  = cryptoSvc.generateRandomKey();

    50   do_check_eq(keydata.length, 44);

    51   keydata2 = cryptoSvc.generateRandomKey();

    52   do_check_neq(keydata, keydata2); // sanity check for randomness

    53   iv = cryptoSvc.generateRandomIV();

    54   do_check_eq(iv.length, 24);

    56   if (this.gczeal)

    57     gczeal(0);

    58 }

The Tor Browser / file revision

services/crypto/tests/unit/test_crypto_random.js@97036ab72558

services/crypto/tests/unit/test_crypto_random.js