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require_relative 'utils'
if defined?(OpenSSL)
class OpenSSL::TestPKeyDH < Test::Unit::TestCase
NEW_KEYLEN = 256
def test_new
dh = OpenSSL::PKey::DH.new(NEW_KEYLEN)
assert_key(dh)
end
def test_new_break
assert_nil(OpenSSL::PKey::DH.new(NEW_KEYLEN) { break })
assert_raises(RuntimeError) do
OpenSSL::PKey::DH.new(NEW_KEYLEN) { raise }
end
end
def test_to_der
dh = OpenSSL::TestUtils::TEST_KEY_DH1024
der = dh.to_der
dh2 = OpenSSL::PKey::DH.new(der)
assert_equal_params(dh, dh2)
assert_no_key(dh2)
end
def test_to_pem
dh = OpenSSL::TestUtils::TEST_KEY_DH1024
pem = dh.to_pem
dh2 = OpenSSL::PKey::DH.new(pem)
assert_equal_params(dh, dh2)
assert_no_key(dh2)
end
def test_public_key
dh = OpenSSL::TestUtils::TEST_KEY_DH1024
public_key = dh.public_key
assert_no_key(public_key) #implies public_key.public? is false!
assert_equal(dh.to_der, public_key.to_der)
assert_equal(dh.to_pem, public_key.to_pem)
end
def test_generate_key
dh = OpenSSL::TestUtils::TEST_KEY_DH512_PUB.public_key # creates a copy
assert_no_key(dh)
dh.generate_key!
assert_key(dh)
end
def test_key_exchange
dh = OpenSSL::TestUtils::TEST_KEY_DH512_PUB
dh2 = dh.public_key
dh.generate_key!
dh2.generate_key!
assert_equal(dh.compute_key(dh2.pub_key), dh2.compute_key(dh.pub_key))
end
private
def assert_equal_params(dh1, dh2)
assert_equal(dh1.g, dh2.g)
assert_equal(dh1.p, dh2.p)
end
def assert_no_key(dh)
assert_equal(false, dh.public?)
assert_equal(false, dh.private?)
assert_equal(nil, dh.pub_key)
assert_equal(nil, dh.priv_key)
end
def assert_key(dh)
assert(dh.public?)
assert(dh.private?)
assert(dh.pub_key)
assert(dh.priv_key)
end
end
end
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