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ruby--ruby/test/openssl/test_pkey_ec.rb

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# frozen_string_literal: true
require_relative 'utils'
if defined?(OpenSSL) && defined?(OpenSSL::PKey::EC)
class OpenSSL::TestEC < OpenSSL::PKeyTestCase
def test_ec_key
builtin_curves = OpenSSL::PKey::EC.builtin_curves
assert_not_empty builtin_curves
builtin_curves.each do |curve_name, comment|
# Oakley curves and X25519 are not suitable for signing and causes
# FIPS-selftest failure on some environment, so skip for now.
next if ["Oakley", "X25519"].any? { |n| curve_name.start_with?(n) }
key = OpenSSL::PKey::EC.new(curve_name)
key.generate_key!
assert_predicate key, :private?
assert_predicate key, :public?
assert_nothing_raised { key.check_key }
end
key1 = OpenSSL::PKey::EC.new("prime256v1").generate_key!
key2 = OpenSSL::PKey::EC.new
key2.group = key1.group
key2.private_key = key1.private_key
key2.public_key = key1.public_key
assert_equal key1.to_der, key2.to_der
key3 = OpenSSL::PKey::EC.new(key1)
assert_equal key1.to_der, key3.to_der
key4 = OpenSSL::PKey::EC.new(key1.to_der)
assert_equal key1.to_der, key4.to_der
key5 = key1.dup
assert_equal key1.to_der, key5.to_der
key_tmp = OpenSSL::PKey::EC.new("prime256v1").generate_key!
key5.private_key = key_tmp.private_key
key5.public_key = key_tmp.public_key
assert_not_equal key1.to_der, key5.to_der
end
def test_generate
assert_raise(OpenSSL::PKey::ECError) { OpenSSL::PKey::EC.generate("non-existent") }
g = OpenSSL::PKey::EC::Group.new("prime256v1")
ec = OpenSSL::PKey::EC.generate(g)
assert_equal(true, ec.private?)
ec = OpenSSL::PKey::EC.generate("prime256v1")
assert_equal(true, ec.private?)
end
def test_check_key
key = OpenSSL::PKey::EC.new("prime256v1").generate_key!
assert_equal(true, key.check_key)
assert_equal(true, key.private?)
assert_equal(true, key.public?)
key2 = OpenSSL::PKey::EC.new(key.group)
assert_equal(false, key2.private?)
assert_equal(false, key2.public?)
key2.public_key = key.public_key
assert_equal(false, key2.private?)
assert_equal(true, key2.public?)
key2.private_key = key.private_key
assert_equal(true, key2.private?)
assert_equal(true, key2.public?)
assert_equal(true, key2.check_key)
key2.private_key += 1
assert_raise(OpenSSL::PKey::ECError) { key2.check_key }
end
def test_sign_verify
p256 = Fixtures.pkey("p256")
data = "Sign me!"
signature = p256.sign("SHA1", data)
assert_equal true, p256.verify("SHA1", signature, data)
signature0 = (<<~'end;').unpack("m")[0]
MEQCIEOTY/hD7eI8a0qlzxkIt8LLZ8uwiaSfVbjX2dPAvN11AiAQdCYx56Fq
QdBp1B4sxJoA8jvODMMklMyBKVmudboA6A==
end;
assert_equal true, p256.verify("SHA256", signature0, data)
signature1 = signature0.succ
assert_equal false, p256.verify("SHA256", signature1, data)
end
def test_dsa_sign_verify
data1 = "foo"
data2 = "bar"
key = OpenSSL::PKey::EC.new("prime256v1").generate_key!
sig = key.dsa_sign_asn1(data1)
assert_equal true, key.dsa_verify_asn1(data1, sig)
assert_equal false, key.dsa_verify_asn1(data2, sig)
end
def test_dsa_sign_asn1_FIPS186_3
key = OpenSSL::PKey::EC.new("prime256v1").generate_key!
size = key.group.order.num_bits / 8 + 1
dgst = (1..size).to_a.pack('C*')
sig = key.dsa_sign_asn1(dgst)
# dgst is auto-truncated according to FIPS186-3 after openssl-0.9.8m
assert(key.dsa_verify_asn1(dgst + "garbage", sig))
end
def test_dh_compute_key
key_a = OpenSSL::PKey::EC.new("prime256v1").generate_key!
key_b = OpenSSL::PKey::EC.new(key_a.group).generate_key!
pub_a = key_a.public_key
pub_b = key_b.public_key
a = key_a.dh_compute_key(pub_b)
b = key_b.dh_compute_key(pub_a)
assert_equal a, b
end
def test_ECPrivateKey
p256 = Fixtures.pkey("p256")
asn1 = OpenSSL::ASN1::Sequence([
OpenSSL::ASN1::Integer(1),
OpenSSL::ASN1::OctetString(p256.private_key.to_s(2)),
OpenSSL::ASN1::ObjectId("prime256v1", 0, :EXPLICIT),
OpenSSL::ASN1::BitString(p256.public_key.to_octet_string(:uncompressed),
1, :EXPLICIT)
])
key = OpenSSL::PKey::EC.new(asn1.to_der)
assert_predicate key, :private?
assert_same_ec p256, key
pem = <<~EOF
-----BEGIN EC PRIVATE KEY-----
MHcCAQEEIID49FDqcf1O1eO8saTgG70UbXQw9Fqwseliit2aWhH1oAoGCCqGSM49
AwEHoUQDQgAEFglk2c+oVUIKQ64eZG9bhLNPWB7lSZ/ArK41eGy5wAzU/0G51Xtt
CeBUl+MahZtn9fO1JKdF4qJmS39dXnpENg==
-----END EC PRIVATE KEY-----
EOF
key = OpenSSL::PKey::EC.new(pem)
assert_same_ec p256, key
assert_equal asn1.to_der, p256.to_der
assert_equal pem, p256.export
end
def test_ECPrivateKey_encrypted
p256 = Fixtures.pkey("p256")
# key = abcdef
pem = <<~EOF
-----BEGIN EC PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: AES-128-CBC,85743EB6FAC9EA76BF99D9328AFD1A66
nhsP1NHxb53aeZdzUe9umKKyr+OIwQq67eP0ONM6E1vFTIcjkDcFLR6PhPFufF4m
y7E2HF+9uT1KPQhlE+D63i1m1Mvez6PWfNM34iOQp2vEhaoHHKlR3c43lLyzaZDI
0/dGSU5SzFG+iT9iFXCwCvv+bxyegkBOyALFje1NAsM=
-----END EC PRIVATE KEY-----
EOF
key = OpenSSL::PKey::EC.new(pem, "abcdef")
assert_same_ec p256, key
key = OpenSSL::PKey::EC.new(pem) { "abcdef" }
assert_same_ec p256, key
cipher = OpenSSL::Cipher.new("aes-128-cbc")
exported = p256.to_pem(cipher, "abcdef\0\1")
assert_same_ec p256, OpenSSL::PKey::EC.new(exported, "abcdef\0\1")
assert_raise(OpenSSL::PKey::ECError) {
OpenSSL::PKey::EC.new(exported, "abcdef")
}
end
def test_PUBKEY
p256 = Fixtures.pkey("p256")
asn1 = OpenSSL::ASN1::Sequence([
OpenSSL::ASN1::Sequence([
OpenSSL::ASN1::ObjectId("id-ecPublicKey"),
OpenSSL::ASN1::ObjectId("prime256v1")
]),
OpenSSL::ASN1::BitString(
p256.public_key.to_octet_string(:uncompressed)
)
])
key = OpenSSL::PKey::EC.new(asn1.to_der)
assert_not_predicate key, :private?
assert_same_ec dup_public(p256), key
pem = <<~EOF
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEFglk2c+oVUIKQ64eZG9bhLNPWB7l
SZ/ArK41eGy5wAzU/0G51XttCeBUl+MahZtn9fO1JKdF4qJmS39dXnpENg==
-----END PUBLIC KEY-----
EOF
key = OpenSSL::PKey::EC.new(pem)
assert_same_ec dup_public(p256), key
assert_equal asn1.to_der, dup_public(p256).to_der
assert_equal pem, dup_public(p256).export
end
def test_ec_group
group1 = OpenSSL::PKey::EC::Group.new("prime256v1")
key1 = OpenSSL::PKey::EC.new(group1)
assert_equal group1, key1.group
group2 = OpenSSL::PKey::EC::Group.new(group1)
assert_equal group1.to_der, group2.to_der
assert_equal group1, group2
group2.asn1_flag ^=OpenSSL::PKey::EC::NAMED_CURVE
assert_not_equal group1.to_der, group2.to_der
assert_equal group1, group2
group3 = group1.dup
assert_equal group1.to_der, group3.to_der
assert group1.asn1_flag & OpenSSL::PKey::EC::NAMED_CURVE # our default
der = group1.to_der
group4 = OpenSSL::PKey::EC::Group.new(der)
group1.point_conversion_form = group4.point_conversion_form = :uncompressed
assert_equal :uncompressed, group1.point_conversion_form
assert_equal :uncompressed, group4.point_conversion_form
assert_equal group1, group4
assert_equal group1.curve_name, group4.curve_name
assert_equal group1.generator.to_octet_string(:uncompressed),
group4.generator.to_octet_string(:uncompressed)
assert_equal group1.order, group4.order
assert_equal group1.cofactor, group4.cofactor
assert_equal group1.seed, group4.seed
assert_equal group1.degree, group4.degree
end
def test_ec_point
group = OpenSSL::PKey::EC::Group.new("prime256v1")
key = OpenSSL::PKey::EC.new(group).generate_key!
point = key.public_key
point2 = OpenSSL::PKey::EC::Point.new(group, point.to_bn)
assert_equal point, point2
assert_equal point.to_bn, point2.to_bn
assert_equal point.to_octet_string(:uncompressed),
point2.to_octet_string(:uncompressed)
point3 = OpenSSL::PKey::EC::Point.new(group,
point.to_octet_string(:uncompressed))
assert_equal point, point3
assert_equal point.to_bn, point3.to_bn
assert_equal point.to_octet_string(:uncompressed),
point3.to_octet_string(:uncompressed)
point2.invert!
point3.invert!
assert_not_equal point.to_octet_string(:uncompressed),
point2.to_octet_string(:uncompressed)
assert_equal point2.to_octet_string(:uncompressed),
point3.to_octet_string(:uncompressed)
begin
group = OpenSSL::PKey::EC::Group.new(:GFp, 17, 2, 2)
group.point_conversion_form = :uncompressed
generator = OpenSSL::PKey::EC::Point.new(group, B(%w{ 04 05 01 }))
group.set_generator(generator, 19, 1)
point = OpenSSL::PKey::EC::Point.new(group, B(%w{ 04 06 03 }))
rescue OpenSSL::PKey::EC::Group::Error
pend "Patched OpenSSL rejected curve" if /unsupported field/ =~ $!.message
raise
end
assert_equal 0x040603.to_bn, point.to_bn
assert_equal 0x040603.to_bn, point.to_bn(:uncompressed)
assert_equal 0x0306.to_bn, point.to_bn(:compressed)
assert_equal 0x070603.to_bn, point.to_bn(:hybrid)
group2 = group.dup; group2.point_conversion_form = :compressed
point2 = OpenSSL::PKey::EC::Point.new(group2, B(%w{ 04 06 03 }))
assert_equal 0x0306.to_bn, point2.to_bn
assert_equal B(%w{ 04 06 03 }), point.to_octet_string(:uncompressed)
assert_equal B(%w{ 03 06 }), point.to_octet_string(:compressed)
assert_equal B(%w{ 07 06 03 }), point.to_octet_string(:hybrid)
assert_equal true, point.on_curve?
point.invert! # 8.5
assert_equal B(%w{ 04 06 0E }), point.to_octet_string(:uncompressed)
assert_equal true, point.on_curve?
assert_equal false, point.infinity?
point.set_to_infinity!
assert_equal true, point.infinity?
assert_equal 0.to_bn, point.to_bn
assert_equal B(%w{ 00 }), point.to_octet_string(:uncompressed)
assert_equal true, point.on_curve?
end
def test_ec_point_add
begin
group = OpenSSL::PKey::EC::Group.new(:GFp, 17, 2, 2)
group.point_conversion_form = :uncompressed
gen = OpenSSL::PKey::EC::Point.new(group, B(%w{ 04 05 01 }))
group.set_generator(gen, 19, 1)
point_a = OpenSSL::PKey::EC::Point.new(group, B(%w{ 04 06 03 }))
point_b = OpenSSL::PKey::EC::Point.new(group, B(%w{ 04 10 0D }))
rescue OpenSSL::PKey::EC::Group::Error
pend "Patched OpenSSL rejected curve" if /unsupported field/ =~ $!.message
raise
end
result = point_a.add(point_b)
assert_equal B(%w{ 04 0D 07 }), result.to_octet_string(:uncompressed)
assert_raise(TypeError) { point_a.add(nil) }
assert_raise(ArgumentError) { point_a.add }
end
def test_ec_point_mul
begin
# y^2 = x^3 + 2x + 2 over F_17
# generator is (5, 1)
group = OpenSSL::PKey::EC::Group.new(:GFp, 17, 2, 2)
group.point_conversion_form = :uncompressed
gen = OpenSSL::PKey::EC::Point.new(group, B(%w{ 04 05 01 }))
group.set_generator(gen, 19, 1)
# 3 * (6, 3) = (16, 13)
point_a = OpenSSL::PKey::EC::Point.new(group, B(%w{ 04 06 03 }))
result_a1 = point_a.mul(3)
assert_equal B(%w{ 04 10 0D }), result_a1.to_octet_string(:uncompressed)
# 3 * (6, 3) + 3 * (5, 1) = (7, 6)
result_a2 = point_a.mul(3, 3)
assert_equal B(%w{ 04 07 06 }), result_a2.to_octet_string(:uncompressed)
# 3 * point_a = 3 * (6, 3) = (16, 13)
result_b1 = point_a.mul([3], [])
assert_equal B(%w{ 04 10 0D }), result_b1.to_octet_string(:uncompressed)
# 3 * point_a + 2 * point_a = 3 * (6, 3) + 2 * (6, 3) = (7, 11)
begin
result_b1 = point_a.mul([3, 2], [point_a])
rescue OpenSSL::PKey::EC::Point::Error
# LibreSSL doesn't support multiple entries in first argument
raise if $!.message !~ /called a function you should not call/
else
assert_equal B(%w{ 04 07 0B }), result_b1.to_octet_string(:uncompressed)
end
# 3 * point_a + 5 * point_a.group.generator = 3 * (6, 3) + 5 * (5, 1) = (13, 10)
result_b1 = point_a.mul([3], [], 5)
assert_equal B(%w{ 04 0D 0A }), result_b1.to_octet_string(:uncompressed)
rescue OpenSSL::PKey::EC::Group::Error
# CentOS patches OpenSSL to reject curves defined over Fp where p < 256 bits
raise if $!.message !~ /unsupported field/
end
p256_key = Fixtures.pkey("p256")
p256_g = p256_key.group
assert_equal(p256_key.public_key, p256_g.generator.mul(p256_key.private_key))
# invalid argument
point = p256_key.public_key
assert_raise(TypeError) { point.mul(nil) }
assert_raise(ArgumentError) { point.mul([1], [point]) }
assert_raise(TypeError) { point.mul([1], nil) }
assert_raise(TypeError) { point.mul([nil], []) }
end
# test Group: asn1_flag, point_conversion
private
def B(ary)
[Array(ary).join].pack("H*")
end
def assert_same_ec(expected, key)
check_component(expected, key, [:group, :public_key, :private_key])
end
end
end
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