SecureRandom should try /dev/urandom first [Bug #9569]

	* random.c (InitVM_Random): rename Random.raw_seed to
	  Random.urandom.  A quick search seems there are no practical use
	  of this method than securerandom.rb so I think it's OK to rename
	  but if there are users of it, this hunk is subject to revert.

	* test/ruby/test_rand.rb (TestRand#test_urandom): test for it.

	* lib/securerandom.rb (SecureRandom.gen_random): Prefer OS-
	  provided CSPRNG if available. Otherwise falls back to OpenSSL.
	  Current preference is:

	  1. CSPRNG routine that the OS has; one of
	     - getrandom(2),
	     - arc4random(3), or
	     - CryptGenRandom()
	  2. /dev/urandom device
	  3. OpenSSL's RAND_bytes(3)

	  If none of above random number generators are available, you
	  cannot use this module.  An exception is raised that case.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57384 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/test/ruby/test_rand.rb b/test/ruby/test_rand.rb
index 46d10f8386..79befa8f04 100644
--- a/test/ruby/test_rand.rb
+++ b/test/ruby/test_rand.rb
@@ -550,9 +550,9 @@ END
     End
   end
 
-  def test_raw_seed
+  def test_urandom
     [0, 1, 100].each do |size|
-      v = Random.raw_seed(size)
+      v = Random.urandom(size)
       assert_kind_of(String, v)
       assert_equal(size, v.bytesize)
     end