From ab682d95e077b43db7dfd293744aa546888d7e35 Mon Sep 17 00:00:00 2001 From: nahi Date: Fri, 4 Nov 2011 05:12:31 +0000 Subject: * ext/openssl/ossl_pkey_rsa.c (rsa_generate): [SECURITY] Set RSA exponent value correctly. Awful bug. This bug caused exponent of generated key to be always '1'. By default, and regardless of e given as a parameter. !!! Keys generated by this code (trunk after 2011-09-01) must be re-generated !!! (ruby_1_9_3 is safe) * test/openssl/test_pkey_rsa.rb: Add tests for default exponent and specifying exponent by a parameter. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33633 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ChangeLog | 13 +++++++++++++ ext/openssl/ossl_pkey_rsa.c | 2 +- test/openssl/test_pkey_rsa.rb | 12 ++++++++++++ 3 files changed, 26 insertions(+), 1 deletion(-) diff --git a/ChangeLog b/ChangeLog index 875d0aaa9d..ae3bd1d1f2 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,16 @@ +Fri Nov 4 14:08:19 2011 Hiroshi Nakamura + + * ext/openssl/ossl_pkey_rsa.c (rsa_generate): [SECURITY] Set RSA + exponent value correctly. Awful bug. This bug caused exponent of + generated key to be always '1'. By default, and regardless of e + given as a parameter. + + !!! Keys generated by this code (trunk after 2011-09-01) must be + re-generated !!! (ruby_1_9_3 is safe) + + * test/openssl/test_pkey_rsa.rb: Add tests for default exponent and + specifying exponent by a parameter. + Fri Nov 04 01:31:25 2011 Martin Bosslet * test/openssl/test_engine.rb: add first tests for builtin "openssl" diff --git a/ext/openssl/ossl_pkey_rsa.c b/ext/openssl/ossl_pkey_rsa.c index 1e28b4fb2b..3f6d52cf08 100644 --- a/ext/openssl/ossl_pkey_rsa.c +++ b/ext/openssl/ossl_pkey_rsa.c @@ -110,7 +110,7 @@ rsa_generate(int size, int exp) if (rsa) RSA_free(rsa); return 0; } - for (i = 0; i < (int)sizeof(exp); ++i) { + for (i = 0; i < (int)sizeof(exp) * 8; ++i) { if (exp & (1 << i)) { if (BN_set_bit(e, i) == 0) { BN_free(e); diff --git a/test/openssl/test_pkey_rsa.rb b/test/openssl/test_pkey_rsa.rb index a7e8e229d1..b7da0ca427 100644 --- a/test/openssl/test_pkey_rsa.rb +++ b/test/openssl/test_pkey_rsa.rb @@ -48,6 +48,18 @@ class OpenSSL::TestPKeyRSA < Test::Unit::TestCase assert_equal([], OpenSSL.errors) end + def test_new_exponent_default + assert_equal(65537, OpenSSL::PKey::RSA.new(512).e) + end + + def test_new_with_exponent + 1.upto(30) do |idx| + e = (2 ** idx) + 1 + key = OpenSSL::PKey::RSA.new(512, e) + assert_equal(e, key.e) + end + end + def test_new_break assert_nil(OpenSSL::PKey::RSA.new(1024) { break }) assert_raise(RuntimeError) do -- cgit v1.2.3