require_relative 'utils' require 'base64' if defined?(OpenSSL) class OpenSSL::TestPKeyRSA < Test::Unit::TestCase def test_padding key = OpenSSL::PKey::RSA.new(512, 3) # Need right size for raw mode plain0 = "x" * (512/8) cipher = key.private_encrypt(plain0, OpenSSL::PKey::RSA::NO_PADDING) plain1 = key.public_decrypt(cipher, OpenSSL::PKey::RSA::NO_PADDING) assert_equal(plain0, plain1) # Need smaller size for pkcs1 mode plain0 = "x" * (512/8 - 11) cipher1 = key.private_encrypt(plain0, OpenSSL::PKey::RSA::PKCS1_PADDING) plain1 = key.public_decrypt(cipher1, OpenSSL::PKey::RSA::PKCS1_PADDING) assert_equal(plain0, plain1) cipherdef = key.private_encrypt(plain0) # PKCS1_PADDING is default plain1 = key.public_decrypt(cipherdef) assert_equal(plain0, plain1) assert_equal(cipher1, cipherdef) # Failure cases assert_raise(ArgumentError){ key.private_encrypt() } assert_raise(ArgumentError){ key.private_encrypt("hi", 1, nil) } assert_raise(OpenSSL::PKey::RSAError){ key.private_encrypt(plain0, 666) } end def test_private key = OpenSSL::PKey::RSA.new(512, 3) assert(key.private?) key2 = OpenSSL::PKey::RSA.new(key.to_der) assert(key2.private?) key3 = key.public_key assert(!key3.private?) key4 = OpenSSL::PKey::RSA.new(key3.to_der) assert(!key4.private?) end def test_new key = OpenSSL::PKey::RSA.new 512 pem = key.public_key.to_pem OpenSSL::PKey::RSA.new pem 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 OpenSSL::PKey::RSA.new(1024) { raise } end end def test_sign_verify key = OpenSSL::TestUtils::TEST_KEY_RSA1024 digest = OpenSSL::Digest::SHA1.new data = 'Sign me!' sig = key.sign(digest, data) assert(key.verify(digest, sig, data)) end def test_digest_state_irrelevant_sign key = OpenSSL::TestUtils::TEST_KEY_RSA1024 digest1 = OpenSSL::Digest::SHA1.new digest2 = OpenSSL::Digest::SHA1.new data = 'Sign me!' digest1 << 'Change state of digest1' sig1 = key.sign(digest1, data) sig2 = key.sign(digest2, data) assert_equal(sig1, sig2) end def test_digest_state_irrelevant_verify key = OpenSSL::TestUtils::TEST_KEY_RSA1024 digest1 = OpenSSL::Digest::SHA1.new digest2 = OpenSSL::Digest::SHA1.new data = 'Sign me!' sig = key.sign(digest1, data) digest1.reset digest1 << 'Change state of digest1' assert(key.verify(digest1, sig, data)) assert(key.verify(digest2, sig, data)) end def test_read_RSAPublicKey modulus = 10664264882656732240315063514678024569492171560814833397008094754351396057398262071307709191731289492697968568138092052265293364132872019762410446076526351 exponent = 65537 seq = OpenSSL::ASN1::Sequence.new([OpenSSL::ASN1::Integer.new(modulus), OpenSSL::ASN1::Integer.new(exponent)]) key = OpenSSL::PKey::RSA.new(seq.to_der) assert(key.public?) assert(!key.private?) assert_equal(modulus, key.n) assert_equal(exponent, key.e) assert_equal(nil, key.d) assert_equal(nil, key.p) assert_equal(nil, key.q) assert_equal([], OpenSSL.errors) end def test_read_RSA_PUBKEY modulus = 10664264882656732240315063514678024569492171560814833397008094754351396057398262071307709191731289492697968568138092052265293364132872019762410446076526351 exponent = 65537 algo = OpenSSL::ASN1::ObjectId.new('rsaEncryption') null_params = OpenSSL::ASN1::Null.new(nil) algo_id = OpenSSL::ASN1::Sequence.new ([algo, null_params]) pub_key = OpenSSL::ASN1::Sequence.new([OpenSSL::ASN1::Integer.new(modulus), OpenSSL::ASN1::Integer.new(exponent)]) seq = OpenSSL::ASN1::Sequence.new([algo_id, OpenSSL::ASN1::BitString.new(pub_key.to_der)]) key = OpenSSL::PKey::RSA.new(seq.to_der) assert(key.public?) assert(!key.private?) assert_equal(modulus, key.n) assert_equal(exponent, key.e) assert_equal(nil, key.d) assert_equal(nil, key.p) assert_equal(nil, key.q) assert_equal([], OpenSSL.errors) end def test_read_RSAPublicKey_pem modulus = 9416340886363418692990906464787534854462163316648195510702927337693641649864839352187127240942127674615733815606532506566068276485089353644309497938966061 exponent = 65537 pem = <<-EOF -----BEGIN RSA PUBLIC KEY----- MEgCQQCzyh2RIZK62E2PbTWqUljD+K23XR9AGBKNtXjal6WD2yRGcLqzPJLNCa60 AudJR1JobbIbDJrQu6AXnWh5k/YtAgMBAAE= -----END RSA PUBLIC KEY----- EOF key = OpenSSL::PKey::RSA.new(pem) assert(key.public?) assert(!key.private?) assert_equal(modulus, key.n) assert_equal(exponent, key.e) assert_equal(nil, key.d) assert_equal(nil, key.p) assert_equal(nil, key.q) assert_equal([], OpenSSL.errors) end def test_read_RSA_PUBKEY_pem modulus = 9416340886363418692990906464787534854462163316648195510702927337693641649864839352187127240942127674615733815606532506566068276485089353644309497938966061 exponent = 65537 pem = <<-EOF -----BEGIN PUBLIC KEY----- MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBALPKHZEhkrrYTY9tNapSWMP4rbdd H0AYEo21eNqXpYPbJEZwurM8ks0JrrQC50lHUmhtshsMmtC7oBedaHmT9i0C AwEAAQ== -----END PUBLIC KEY----- EOF key = OpenSSL::PKey::RSA.new(pem) assert(key.public?) assert(!key.private?) assert_equal(modulus, key.n) assert_equal(exponent, key.e) assert_equal(nil, key.d) assert_equal(nil, key.p) assert_equal(nil, key.q) assert_equal([], OpenSSL.errors) end def test_export_format_is_RSA_PUBKEY key = OpenSSL::PKey::RSA.new(512) asn1 = OpenSSL::ASN1.decode(key.public_key.to_der) check_PUBKEY(asn1, key) end def test_export_format_is_RSA_PUBKEY_pem key = OpenSSL::PKey::RSA.new(512) pem = key.public_key.to_pem pem.gsub!(/^-+(\w|\s)+-+$/, "") # eliminate --------BEGIN...------- asn1 = OpenSSL::ASN1.decode(Base64.decode64(pem)) check_PUBKEY(asn1, key) end def test_read_private_key_der der = OpenSSL::TestUtils::TEST_KEY_RSA1024.to_der key = OpenSSL::PKey.read(der) assert(key.private?) assert_equal(der, key.to_der) assert_equal([], OpenSSL.errors) end def test_read_private_key_pem pem = OpenSSL::TestUtils::TEST_KEY_RSA1024.to_pem key = OpenSSL::PKey.read(pem) assert(key.private?) assert_equal(pem, key.to_pem) assert_equal([], OpenSSL.errors) end def test_read_public_key_der der = OpenSSL::TestUtils::TEST_KEY_RSA1024.public_key.to_der key = OpenSSL::PKey.read(der) assert(!key.private?) assert_equal(der, key.to_der) assert_equal([], OpenSSL.errors) end def test_read_public_key_pem pem = OpenSSL::TestUtils::TEST_KEY_RSA1024.public_key.to_pem key = OpenSSL::PKey.read(pem) assert(!key.private?) assert_equal(pem, key.to_pem) assert_equal([], OpenSSL.errors) end def test_read_private_key_pem_pw pem = OpenSSL::TestUtils::TEST_KEY_RSA1024.to_pem(OpenSSL::Cipher.new('AES-128-CBC'), 'secret') #callback form for password key = OpenSSL::PKey.read(pem) do 'secret' end assert(key.private?) # pass password directly key = OpenSSL::PKey.read(pem, 'secret') assert(key.private?) #omit pem equality check, will be different due to cipher iv assert_equal([], OpenSSL.errors) end def test_read_private_key_pem_pw_exception pem = OpenSSL::TestUtils::TEST_KEY_RSA1024.to_pem(OpenSSL::Cipher.new('AES-128-CBC'), 'secret') # it raises an ArgumentError from PEM reading. The exception raised inside are ignored for now. assert_raise(ArgumentError) do OpenSSL::PKey.read(pem) do raise RuntimeError end end assert_equal([], OpenSSL.errors) end private def check_PUBKEY(asn1, key) assert_equal(OpenSSL::ASN1::SEQUENCE, asn1.tag) assert_equal(2, asn1.value.size) seq = asn1.value assert_equal(OpenSSL::ASN1::SEQUENCE, seq[0].tag) assert_equal(2, seq[0].value.size) algo_id = seq[0].value assert_equal(OpenSSL::ASN1::OBJECT, algo_id[0].tag) assert_equal('rsaEncryption', algo_id[0].value) assert_equal(OpenSSL::ASN1::NULL, algo_id[1].tag) assert_equal(nil, algo_id[1].value) assert_equal(OpenSSL::ASN1::BIT_STRING, seq[1].tag) assert_equal(0, seq[1].unused_bits) pub_key = OpenSSL::ASN1.decode(seq[1].value) assert_equal(OpenSSL::ASN1::SEQUENCE, pub_key.tag) assert_equal(2, pub_key.value.size) assert_equal(OpenSSL::ASN1::INTEGER, pub_key.value[0].tag) assert_equal(key.n, pub_key.value[0].value) assert_equal(OpenSSL::ASN1::INTEGER, pub_key.value[1].tag) assert_equal(key.e, pub_key.value[1].value) assert_equal([], OpenSSL.errors) end end end