mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
65 lines
2.7 KiB
Ruby
65 lines
2.7 KiB
Ruby
# frozen_string_literal: true
|
|
require_relative "utils"
|
|
|
|
require 'benchmark'
|
|
|
|
if defined?(OpenSSL)
|
|
|
|
class OpenSSL::OSSL < OpenSSL::SSLTestCase
|
|
def test_fixed_length_secure_compare
|
|
assert_raise(ArgumentError) { OpenSSL.fixed_length_secure_compare("aaa", "a") }
|
|
assert_raise(ArgumentError) { OpenSSL.fixed_length_secure_compare("aaa", "aa") }
|
|
|
|
assert OpenSSL.fixed_length_secure_compare("aaa", "aaa")
|
|
assert OpenSSL.fixed_length_secure_compare(
|
|
OpenSSL::Digest.digest('SHA256', "aaa"), OpenSSL::Digest::SHA256.digest("aaa")
|
|
)
|
|
|
|
assert_raise(ArgumentError) { OpenSSL.fixed_length_secure_compare("aaa", "aaaa") }
|
|
refute OpenSSL.fixed_length_secure_compare("aaa", "baa")
|
|
refute OpenSSL.fixed_length_secure_compare("aaa", "aba")
|
|
refute OpenSSL.fixed_length_secure_compare("aaa", "aab")
|
|
assert_raise(ArgumentError) { OpenSSL.fixed_length_secure_compare("aaa", "aaab") }
|
|
assert_raise(ArgumentError) { OpenSSL.fixed_length_secure_compare("aaa", "b") }
|
|
assert_raise(ArgumentError) { OpenSSL.fixed_length_secure_compare("aaa", "bb") }
|
|
refute OpenSSL.fixed_length_secure_compare("aaa", "bbb")
|
|
assert_raise(ArgumentError) { OpenSSL.fixed_length_secure_compare("aaa", "bbbb") }
|
|
end
|
|
|
|
def test_secure_compare
|
|
refute OpenSSL.secure_compare("aaa", "a")
|
|
refute OpenSSL.secure_compare("aaa", "aa")
|
|
|
|
assert OpenSSL.secure_compare("aaa", "aaa")
|
|
|
|
refute OpenSSL.secure_compare("aaa", "aaaa")
|
|
refute OpenSSL.secure_compare("aaa", "baa")
|
|
refute OpenSSL.secure_compare("aaa", "aba")
|
|
refute OpenSSL.secure_compare("aaa", "aab")
|
|
refute OpenSSL.secure_compare("aaa", "aaab")
|
|
refute OpenSSL.secure_compare("aaa", "b")
|
|
refute OpenSSL.secure_compare("aaa", "bb")
|
|
refute OpenSSL.secure_compare("aaa", "bbb")
|
|
refute OpenSSL.secure_compare("aaa", "bbbb")
|
|
end
|
|
|
|
def test_memcmp_timing
|
|
# Ensure using fixed_length_secure_compare takes almost exactly the same amount of time to compare two different strings.
|
|
# Regular string comparison will short-circuit on the first non-matching character, failing this test.
|
|
# NOTE: this test may be susceptible to noise if the system running the tests is otherwise under load.
|
|
a = "x" * 512_000
|
|
b = "#{a}y"
|
|
c = "y#{a}"
|
|
a = "#{a}x"
|
|
|
|
a_b_time = a_c_time = 0
|
|
100.times do
|
|
a_b_time += Benchmark.measure { 100.times { OpenSSL.fixed_length_secure_compare(a, b) } }.real
|
|
a_c_time += Benchmark.measure { 100.times { OpenSSL.fixed_length_secure_compare(a, c) } }.real
|
|
end
|
|
assert_operator(a_b_time, :<, a_c_time * 10, "fixed_length_secure_compare timing test failed")
|
|
assert_operator(a_c_time, :<, a_b_time * 10, "fixed_length_secure_compare timing test failed")
|
|
end
|
|
end
|
|
|
|
end
|