diff options
author | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-06-20 02:46:17 +0000 |
---|---|---|
committer | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-06-20 02:46:17 +0000 |
commit | 04739ba61744046ac145b384aa9053429c80142f (patch) | |
tree | 848a727b1a400b56d7906f33ad564d8073aaf693 /test | |
parent | 3af6dda231c26524b65a02f8212d91ce37618aa9 (diff) | |
download | ruby-04739ba61744046ac145b384aa9053429c80142f.tar.gz |
* string.c (rb_memhash): randomize hash to avoid algorithmic
complexity attacks.
(rb_str_hash): use rb_memhash.
* include/ruby/intern.h (rb_reset_random_seed): declared.
* thread.c (rb_thread_atfork): call rb_reset_random_seed.
* inits.c (rb_call_inits): call Init_RandomSeed at first.
* random.c (seed_initialized): defined.
(fill_random_seed): extracted from random_seed.
(make_seed_value): extracted from random_seed.
(rb_f_rand): initialize random seed at first.
(initial_seed): defined.
(Init_RandomSeed): defined.
(Init_RandomSeed2): defined.
(rb_reset_random_seed): defined.
(Init_Random): call Init_RandomSeed2.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@17465 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test')
-rw-r--r-- | test/ruby/test_string.rb | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test/ruby/test_string.rb b/test/ruby/test_string.rb index 55cef9001e..869e31b641 100644 --- a/test/ruby/test_string.rb +++ b/test/ruby/test_string.rb @@ -683,6 +683,17 @@ class TestString < Test::Unit::TestCase assert(S("hello").hash != S("helLO").hash) end + def test_hash_random + str = 'abc' + a = [str.hash.to_s] + 3.times { + EnvUtil.rubyexec("-e", "print #{str.dump}.hash") {|i,o,e| + a << o.read + } + } + assert_not_equal([str.hash.to_s], a.uniq) + end + def test_hex assert_equal(255, S("0xff").hex) assert_equal(-255, S("-0xff").hex) |