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# Copyright (c) 2015, Legrandin <helderijs@gmail.com>
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import unittest
import time
from Crypto.SelfTest.st_common import list_test_cases
from Crypto.SelfTest.loader import load_tests

from Crypto.PublicKey import ECC
from Crypto.PublicKey.ECC import EccPoint, _curves, EccKey

from Crypto.Math.Numbers import Integer

class TestEccPoint(unittest.TestCase):

    def test_mix(self):

        p1 = ECC.generate(curve='P-256').pointQ
        p2 = ECC.generate(curve='P-384').pointQ

        try:
            p1 + p2
            assert(False)
        except ValueError as e:
            assert "not on the same curve" in str(e)

        try:
            p1 += p2
            assert(False)
        except ValueError as e:
            assert "not on the same curve" in str(e)

    def test_repr(self):
        p1 = ECC.construct(curve='P-256',
                           d=75467964919405407085864614198393977741148485328036093939970922195112333446269,
                           point_x=20573031766139722500939782666697015100983491952082159880539639074939225934381,
                           point_y=108863130203210779921520632367477406025152638284581252625277850513266505911389)
        self.assertEqual(repr(p1), "EccKey(curve='NIST P-256', point_x=20573031766139722500939782666697015100983491952082159880539639074939225934381, point_y=108863130203210779921520632367477406025152638284581252625277850513266505911389, d=75467964919405407085864614198393977741148485328036093939970922195112333446269)")


class TestEccPoint_NIST_P256(unittest.TestCase):
    """Tests defined in section 4.3 of https://www.nsa.gov/ia/_files/nist-routines.pdf"""

    pointS = EccPoint(
                0xde2444bebc8d36e682edd27e0f271508617519b3221a8fa0b77cab3989da97c9,
                0xc093ae7ff36e5380fc01a5aad1e66659702de80f53cec576b6350b243042a256)

    pointT = EccPoint(
                0x55a8b00f8da1d44e62f6b3b25316212e39540dc861c89575bb8cf92e35e0986b,
                0x5421c3209c2d6c704835d82ac4c3dd90f61a8a52598b9e7ab656e9d8c8b24316)

    def test_set(self):
        pointW = EccPoint(0, 0)
        pointW.set(self.pointS)
        self.assertEqual(pointW, self.pointS)

    def test_copy(self):
        pointW = self.pointS.copy()
        self.assertEqual(pointW, self.pointS)
        pointW.set(self.pointT)
        self.assertEqual(pointW, self.pointT)
        self.assertNotEqual(self.pointS, self.pointT)

    def test_negate(self):
        negS = -self.pointS
        sum = self.pointS + negS
        self.assertEqual(sum, self.pointS.point_at_infinity())

    def test_addition(self):
        pointRx = 0x72b13dd4354b6b81745195e98cc5ba6970349191ac476bd4553cf35a545a067e
        pointRy = 0x8d585cbb2e1327d75241a8a122d7620dc33b13315aa5c9d46d013011744ac264

        pointR = self.pointS + self.pointT
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

        pai = pointR.point_at_infinity()

        # S + 0
        pointR = self.pointS + pai
        self.assertEqual(pointR, self.pointS)

        # 0 + S
        pointR = pai + self.pointS
        self.assertEqual(pointR, self.pointS)

        # 0 + 0
        pointR = pai + pai
        self.assertEqual(pointR, pai)

    def test_inplace_addition(self):
        pointRx = 0x72b13dd4354b6b81745195e98cc5ba6970349191ac476bd4553cf35a545a067e
        pointRy = 0x8d585cbb2e1327d75241a8a122d7620dc33b13315aa5c9d46d013011744ac264

        pointR = self.pointS.copy()
        pointR += self.pointT
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

        pai = pointR.point_at_infinity()

        # S + 0
        pointR = self.pointS.copy()
        pointR += pai
        self.assertEqual(pointR, self.pointS)

        # 0 + S
        pointR = pai.copy()
        pointR += self.pointS
        self.assertEqual(pointR, self.pointS)

        # 0 + 0
        pointR = pai.copy()
        pointR += pai
        self.assertEqual(pointR, pai)

    def test_doubling(self):
        pointRx = 0x7669e6901606ee3ba1a8eef1e0024c33df6c22f3b17481b82a860ffcdb6127b0
        pointRy = 0xfa878162187a54f6c39f6ee0072f33de389ef3eecd03023de10ca2c1db61d0c7

        pointR = self.pointS.copy()
        pointR.double()
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

        # 2*0
        pai = self.pointS.point_at_infinity()
        pointR = pai.copy()
        pointR.double()
        self.assertEqual(pointR, pai)

        # S + S
        pointR = self.pointS.copy()
        pointR += pointR
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

    def test_scalar_multiply(self):
        d = 0xc51e4753afdec1e6b6c6a5b992f43f8dd0c7a8933072708b6522468b2ffb06fd
        pointRx = 0x51d08d5f2d4278882946d88d83c97d11e62becc3cfc18bedacc89ba34eeca03f
        pointRy = 0x75ee68eb8bf626aa5b673ab51f6e744e06f8fcf8a6c0cf3035beca956a7b41d5

        pointR = self.pointS * d
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

        # 0*S
        pai = self.pointS.point_at_infinity()
        pointR = self.pointS * 0
        self.assertEqual(pointR, pai)

        # -1*S
        self.assertRaises(ValueError, lambda: self.pointS * -1)

        # Reverse order
        pointR = d * self.pointS
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

        pointR = Integer(d) * self.pointS
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)


    def test_joing_scalar_multiply(self):
        d = 0xc51e4753afdec1e6b6c6a5b992f43f8dd0c7a8933072708b6522468b2ffb06fd
        e = 0xd37f628ece72a462f0145cbefe3f0b355ee8332d37acdd83a358016aea029db7
        pointRx = 0xd867b4679221009234939221b8046245efcf58413daacbeff857b8588341f6b8
        pointRy = 0xf2504055c03cede12d22720dad69c745106b6607ec7e50dd35d54bd80f615275

        t = self.pointS * d

        pointR = self.pointS * d + self.pointT * e
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

    def test_sizes(self):
        self.assertEqual(self.pointS.size_in_bits(), 256)
        self.assertEqual(self.pointS.size_in_bytes(), 32)

class TestEccPoint_NIST_P384(unittest.TestCase):
    """Tests defined in section 4.4 of https://www.nsa.gov/ia/_files/nist-routines.pdf"""

    pointS = EccPoint(
                0xfba203b81bbd23f2b3be971cc23997e1ae4d89e69cb6f92385dda82768ada415ebab4167459da98e62b1332d1e73cb0e,
                0x5ffedbaefdeba603e7923e06cdb5d0c65b22301429293376d5c6944e3fa6259f162b4788de6987fd59aed5e4b5285e45,
                "p384")

    pointT = EccPoint(
                0xaacc05202e7fda6fc73d82f0a66220527da8117ee8f8330ead7d20ee6f255f582d8bd38c5a7f2b40bcdb68ba13d81051,
                0x84009a263fefba7c2c57cffa5db3634d286131afc0fca8d25afa22a7b5dce0d9470da89233cee178592f49b6fecb5092,
                "p384")

    def test_set(self):
        pointW = EccPoint(0, 0, "p384")
        pointW.set(self.pointS)
        self.assertEqual(pointW, self.pointS)

    def test_copy(self):
        pointW = self.pointS.copy()
        self.assertEqual(pointW, self.pointS)
        pointW.set(self.pointT)
        self.assertEqual(pointW, self.pointT)
        self.assertNotEqual(self.pointS, self.pointT)

    def test_negate(self):
        negS = -self.pointS
        sum = self.pointS + negS
        self.assertEqual(sum, self.pointS.point_at_infinity())

    def test_addition(self):
        pointRx = 0x12dc5ce7acdfc5844d939f40b4df012e68f865b89c3213ba97090a247a2fc009075cf471cd2e85c489979b65ee0b5eed
        pointRy = 0x167312e58fe0c0afa248f2854e3cddcb557f983b3189b67f21eee01341e7e9fe67f6ee81b36988efa406945c8804a4b0

        pointR = self.pointS + self.pointT
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

        pai = pointR.point_at_infinity()

        # S + 0
        pointR = self.pointS + pai
        self.assertEqual(pointR, self.pointS)

        # 0 + S
        pointR = pai + self.pointS
        self.assertEqual(pointR, self.pointS)

        # 0 + 0
        pointR = pai + pai
        self.assertEqual(pointR, pai)

    def _test_inplace_addition(self):
        pointRx = 0x72b13dd4354b6b81745195e98cc5ba6970349191ac476bd4553cf35a545a067e
        pointRy = 0x8d585cbb2e1327d75241a8a122d7620dc33b13315aa5c9d46d013011744ac264

        pointR = self.pointS.copy()
        pointR += self.pointT
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

        pai = pointR.point_at_infinity()

        # S + 0
        pointR = self.pointS.copy()
        pointR += pai
        self.assertEqual(pointR, self.pointS)

        # 0 + S
        pointR = pai.copy()
        pointR += self.pointS
        self.assertEqual(pointR, self.pointS)

        # 0 + 0
        pointR = pai.copy()
        pointR += pai
        self.assertEqual(pointR, pai)

    def test_doubling(self):
        pointRx = 0x2a2111b1e0aa8b2fc5a1975516bc4d58017ff96b25e1bdff3c229d5fac3bacc319dcbec29f9478f42dee597b4641504c
        pointRy = 0xfa2e3d9dc84db8954ce8085ef28d7184fddfd1344b4d4797343af9b5f9d837520b450f726443e4114bd4e5bdb2f65ddd

        pointR = self.pointS.copy()
        pointR.double()
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

        # 2*0
        pai = self.pointS.point_at_infinity()
        pointR = pai.copy()
        pointR.double()
        self.assertEqual(pointR, pai)

        # S + S
        pointR = self.pointS.copy()
        pointR += pointR
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

    def test_scalar_multiply(self):
        d = 0xa4ebcae5a665983493ab3e626085a24c104311a761b5a8fdac052ed1f111a5c44f76f45659d2d111a61b5fdd97583480
        pointRx = 0xe4f77e7ffeb7f0958910e3a680d677a477191df166160ff7ef6bb5261f791aa7b45e3e653d151b95dad3d93ca0290ef2
        pointRy = 0xac7dee41d8c5f4a7d5836960a773cfc1376289d3373f8cf7417b0c6207ac32e913856612fc9ff2e357eb2ee05cf9667f

        pointR = self.pointS * d
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

        # 0*S
        pai = self.pointS.point_at_infinity()
        pointR = self.pointS * 0
        self.assertEqual(pointR, pai)

        # -1*S
        self.assertRaises(ValueError, lambda: self.pointS * -1)

    def test_joing_scalar_multiply(self):
        d = 0xa4ebcae5a665983493ab3e626085a24c104311a761b5a8fdac052ed1f111a5c44f76f45659d2d111a61b5fdd97583480
        e = 0xafcf88119a3a76c87acbd6008e1349b29f4ba9aa0e12ce89bcfcae2180b38d81ab8cf15095301a182afbc6893e75385d
        pointRx = 0x917ea28bcd641741ae5d18c2f1bd917ba68d34f0f0577387dc81260462aea60e2417b8bdc5d954fc729d211db23a02dc
        pointRy = 0x1a29f7ce6d074654d77b40888c73e92546c8f16a5ff6bcbd307f758d4aee684beff26f6742f597e2585c86da908f7186

        t = self.pointS * d

        pointR = self.pointS * d + self.pointT * e
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

    def test_sizes(self):
        self.assertEqual(self.pointS.size_in_bits(), 384)
        self.assertEqual(self.pointS.size_in_bytes(), 48)


class TestEccPoint_NIST_P521(unittest.TestCase):
    """Tests defined in section 4.5 of https://www.nsa.gov/ia/_files/nist-routines.pdf"""

    pointS = EccPoint(
                0x000001d5c693f66c08ed03ad0f031f937443458f601fd098d3d0227b4bf62873af50740b0bb84aa157fc847bcf8dc16a8b2b8bfd8e2d0a7d39af04b089930ef6dad5c1b4,
                0x00000144b7770963c63a39248865ff36b074151eac33549b224af5c8664c54012b818ed037b2b7c1a63ac89ebaa11e07db89fcee5b556e49764ee3fa66ea7ae61ac01823,
                "p521")

    pointT = EccPoint(
                0x000000f411f2ac2eb971a267b80297ba67c322dba4bb21cec8b70073bf88fc1ca5fde3ba09e5df6d39acb2c0762c03d7bc224a3e197feaf760d6324006fe3be9a548c7d5,
                0x000001fdf842769c707c93c630df6d02eff399a06f1b36fb9684f0b373ed064889629abb92b1ae328fdb45534268384943f0e9222afe03259b32274d35d1b9584c65e305,
                "p521")

    def test_set(self):
        pointW = EccPoint(0, 0)
        pointW.set(self.pointS)
        self.assertEqual(pointW, self.pointS)

    def test_copy(self):
        pointW = self.pointS.copy()
        self.assertEqual(pointW, self.pointS)
        pointW.set(self.pointT)
        self.assertEqual(pointW, self.pointT)
        self.assertNotEqual(self.pointS, self.pointT)

    def test_negate(self):
        negS = -self.pointS
        sum = self.pointS + negS
        self.assertEqual(sum, self.pointS.point_at_infinity())

    def test_addition(self):
        pointRx = 0x000001264ae115ba9cbc2ee56e6f0059e24b52c8046321602c59a339cfb757c89a59c358a9a8e1f86d384b3f3b255ea3f73670c6dc9f45d46b6a196dc37bbe0f6b2dd9e9
        pointRy = 0x00000062a9c72b8f9f88a271690bfa017a6466c31b9cadc2fc544744aeb817072349cfddc5ad0e81b03f1897bd9c8c6efbdf68237dc3bb00445979fb373b20c9a967ac55

        pointR = self.pointS + self.pointT
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

        pai = pointR.point_at_infinity()

        # S + 0
        pointR = self.pointS + pai
        self.assertEqual(pointR, self.pointS)

        # 0 + S
        pointR = pai + self.pointS
        self.assertEqual(pointR, self.pointS)

        # 0 + 0
        pointR = pai + pai
        self.assertEqual(pointR, pai)

    def test_inplace_addition(self):
        pointRx = 0x000001264ae115ba9cbc2ee56e6f0059e24b52c8046321602c59a339cfb757c89a59c358a9a8e1f86d384b3f3b255ea3f73670c6dc9f45d46b6a196dc37bbe0f6b2dd9e9
        pointRy = 0x00000062a9c72b8f9f88a271690bfa017a6466c31b9cadc2fc544744aeb817072349cfddc5ad0e81b03f1897bd9c8c6efbdf68237dc3bb00445979fb373b20c9a967ac55

        pointR = self.pointS.copy()
        pointR += self.pointT
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

        pai = pointR.point_at_infinity()

        # S + 0
        pointR = self.pointS.copy()
        pointR += pai
        self.assertEqual(pointR, self.pointS)

        # 0 + S
        pointR = pai.copy()
        pointR += self.pointS
        self.assertEqual(pointR, self.pointS)

        # 0 + 0
        pointR = pai.copy()
        pointR += pai
        self.assertEqual(pointR, pai)

    def test_doubling(self):
        pointRx = 0x0000012879442f2450c119e7119a5f738be1f1eba9e9d7c6cf41b325d9ce6d643106e9d61124a91a96bcf201305a9dee55fa79136dc700831e54c3ca4ff2646bd3c36bc6
        pointRy = 0x0000019864a8b8855c2479cbefe375ae553e2393271ed36fadfc4494fc0583f6bd03598896f39854abeae5f9a6515a021e2c0eef139e71de610143f53382f4104dccb543

        pointR = self.pointS.copy()
        pointR.double()
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

        # 2*0
        pai = self.pointS.point_at_infinity()
        pointR = pai.copy()
        pointR.double()
        self.assertEqual(pointR, pai)

        # S + S
        pointR = self.pointS.copy()
        pointR += pointR
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

    def test_scalar_multiply(self):
        d = 0x000001eb7f81785c9629f136a7e8f8c674957109735554111a2a866fa5a166699419bfa9936c78b62653964df0d6da940a695c7294d41b2d6600de6dfcf0edcfc89fdcb1
        pointRx = 0x00000091b15d09d0ca0353f8f96b93cdb13497b0a4bb582ae9ebefa35eee61bf7b7d041b8ec34c6c00c0c0671c4ae063318fb75be87af4fe859608c95f0ab4774f8c95bb
        pointRy = 0x00000130f8f8b5e1abb4dd94f6baaf654a2d5810411e77b7423965e0c7fd79ec1ae563c207bd255ee9828eb7a03fed565240d2cc80ddd2cecbb2eb50f0951f75ad87977f

        pointR = self.pointS * d
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

        # 0*S
        pai = self.pointS.point_at_infinity()
        pointR = self.pointS * 0
        self.assertEqual(pointR, pai)

        # -1*S
        self.assertRaises(ValueError, lambda: self.pointS * -1)

    def test_joing_scalar_multiply(self):
        d = 0x000001eb7f81785c9629f136a7e8f8c674957109735554111a2a866fa5a166699419bfa9936c78b62653964df0d6da940a695c7294d41b2d6600de6dfcf0edcfc89fdcb1
        e = 0x00000137e6b73d38f153c3a7575615812608f2bab3229c92e21c0d1c83cfad9261dbb17bb77a63682000031b9122c2f0cdab2af72314be95254de4291a8f85f7c70412e3
        pointRx = 0x0000009d3802642b3bea152beb9e05fba247790f7fc168072d363340133402f2585588dc1385d40ebcb8552f8db02b23d687cae46185b27528adb1bf9729716e4eba653d
        pointRy = 0x0000000fe44344e79da6f49d87c1063744e5957d9ac0a505bafa8281c9ce9ff25ad53f8da084a2deb0923e46501de5797850c61b229023dd9cf7fc7f04cd35ebb026d89d

        t = self.pointS * d

        pointR = self.pointS * d
        pointR += self.pointT * e
        self.assertEqual(pointR.x, pointRx)
        self.assertEqual(pointR.y, pointRy)

    def test_sizes(self):
        self.assertEqual(self.pointS.size_in_bits(), 521)
        self.assertEqual(self.pointS.size_in_bytes(), 66)


class TestEccPoint_PAI_P256(unittest.TestCase):
    """Test vectors from http://point-at-infinity.org/ecc/nisttv"""

    curve = _curves['p256']
    pointG = EccPoint(curve.Gx, curve.Gy, "p256")


tv_pai = load_tests(("Crypto", "SelfTest", "PublicKey", "test_vectors", "ECC"),
                    "point-at-infinity.org-P256.txt",
                    "P-256 tests from point-at-infinity.org",
                    { "k" : lambda k: int(k),
                      "x" : lambda x: int(x, 16),
                      "y" : lambda y: int(y, 16)} )
assert(tv_pai)
for tv in tv_pai:
    def new_test(self, scalar=tv.k, x=tv.x, y=tv.y):
        result = self.pointG * scalar
        self.assertEqual(result.x, x)
        self.assertEqual(result.y, y)
    setattr(TestEccPoint_PAI_P256, "test_%d" % tv.count, new_test)


class TestEccPoint_PAI_P384(unittest.TestCase):
    """Test vectors from http://point-at-infinity.org/ecc/nisttv"""

    curve = _curves['p384']
    pointG = EccPoint(curve.Gx, curve.Gy, "p384")


tv_pai = load_tests(("Crypto", "SelfTest", "PublicKey", "test_vectors", "ECC"),
                    "point-at-infinity.org-P384.txt",
                    "P-384 tests from point-at-infinity.org",
                    { "k" : lambda k: int(k),
                      "x" : lambda x: int(x, 16),
                      "y" : lambda y: int(y, 16)} )
assert(tv_pai)
for tv in tv_pai:
    def new_test(self, scalar=tv.k, x=tv.x, y=tv.y):
        result = self.pointG * scalar
        self.assertEqual(result.x, x)
        self.assertEqual(result.y, y)
    setattr(TestEccPoint_PAI_P384, "test_%d" % tv.count, new_test)


class TestEccPoint_PAI_P521(unittest.TestCase):
    """Test vectors from http://point-at-infinity.org/ecc/nisttv"""

    curve = _curves['p521']
    pointG = EccPoint(curve.Gx, curve.Gy, "p521")


tv_pai = load_tests(("Crypto", "SelfTest", "PublicKey", "test_vectors", "ECC"),
                    "point-at-infinity.org-P521.txt",
                    "P-521 tests from point-at-infinity.org",
                    { "k" : lambda k: int(k),
                      "x" : lambda x: int(x, 16),
                      "y" : lambda y: int(y, 16)} )
assert(tv_pai)
for tv in tv_pai:
    def new_test(self, scalar=tv.k, x=tv.x, y=tv.y):
        result = self.pointG * scalar
        self.assertEqual(result.x, x)
        self.assertEqual(result.y, y)
    setattr(TestEccPoint_PAI_P521, "test_%d" % tv.count, new_test)


class TestEccKey_P256(unittest.TestCase):

    def test_private_key(self):

        key = EccKey(curve="P-256", d=1)
        self.assertEqual(key.d, 1)
        self.failUnless(key.has_private())
        self.assertEqual(key.pointQ.x, _curves['p256'].Gx)
        self.assertEqual(key.pointQ.y, _curves['p256'].Gy)

        point = EccPoint(_curves['p256'].Gx, _curves['p256'].Gy)
        key = EccKey(curve="P-256", d=1, point=point)
        self.assertEqual(key.d, 1)
        self.failUnless(key.has_private())
        self.assertEqual(key.pointQ, point)

        # Other names
        key = EccKey(curve="secp256r1", d=1)
        key = EccKey(curve="prime256v1", d=1)

    def test_public_key(self):

        point = EccPoint(_curves['p256'].Gx, _curves['p256'].Gy)
        key = EccKey(curve="P-256", point=point)
        self.failIf(key.has_private())
        self.assertEqual(key.pointQ, point)

    def test_public_key_derived(self):

        priv_key = EccKey(curve="P-256", d=3)
        pub_key = priv_key.public_key()
        self.failIf(pub_key.has_private())
        self.assertEqual(priv_key.pointQ, pub_key.pointQ)

    def test_invalid_curve(self):
        self.assertRaises(ValueError, lambda: EccKey(curve="P-257", d=1))

    def test_invalid_d(self):
        self.assertRaises(ValueError, lambda: EccKey(curve="P-256", d=0))
        self.assertRaises(ValueError, lambda: EccKey(curve="P-256", d=_curves['p256'].order))

    def test_equality(self):

        private_key = ECC.construct(d=3, curve="P-256")
        private_key2 = ECC.construct(d=3, curve="P-256")
        private_key3 = ECC.construct(d=4, curve="P-256")

        public_key = private_key.public_key()
        public_key2 = private_key2.public_key()
        public_key3 = private_key3.public_key()

        self.assertEqual(private_key, private_key2)
        self.assertNotEqual(private_key, private_key3)

        self.assertEqual(public_key, public_key2)
        self.assertNotEqual(public_key, public_key3)

        self.assertNotEqual(public_key, private_key)


class TestEccKey_P384(unittest.TestCase):

    def test_private_key(self):

        p384 = _curves['p384']

        key = EccKey(curve="P-384", d=1)
        self.assertEqual(key.d, 1)
        self.failUnless(key.has_private())
        self.assertEqual(key.pointQ.x, p384.Gx)
        self.assertEqual(key.pointQ.y, p384.Gy)

        point = EccPoint(p384.Gx, p384.Gy, "p384")
        key = EccKey(curve="P-384", d=1, point=point)
        self.assertEqual(key.d, 1)
        self.failUnless(key.has_private())
        self.assertEqual(key.pointQ, point)

        # Other names
        key = EccKey(curve="p384", d=1)
        key = EccKey(curve="secp384r1", d=1)
        key = EccKey(curve="prime384v1", d=1)

    def test_public_key(self):

        p384 = _curves['p384']
        point = EccPoint(p384.Gx, p384.Gy, 'p384')
        key = EccKey(curve="P-384", point=point)
        self.failIf(key.has_private())
        self.assertEqual(key.pointQ, point)

    def test_public_key_derived(self):

        priv_key = EccKey(curve="P-384", d=3)
        pub_key = priv_key.public_key()
        self.failIf(pub_key.has_private())
        self.assertEqual(priv_key.pointQ, pub_key.pointQ)

    def test_invalid_curve(self):
        self.assertRaises(ValueError, lambda: EccKey(curve="P-385", d=1))

    def test_invalid_d(self):
        self.assertRaises(ValueError, lambda: EccKey(curve="P-384", d=0))
        self.assertRaises(ValueError, lambda: EccKey(curve="P-384",
                                                     d=_curves['p384'].order))

    def test_equality(self):

        private_key = ECC.construct(d=3, curve="P-384")
        private_key2 = ECC.construct(d=3, curve="P-384")
        private_key3 = ECC.construct(d=4, curve="P-384")

        public_key = private_key.public_key()
        public_key2 = private_key2.public_key()
        public_key3 = private_key3.public_key()

        self.assertEqual(private_key, private_key2)
        self.assertNotEqual(private_key, private_key3)

        self.assertEqual(public_key, public_key2)
        self.assertNotEqual(public_key, public_key3)

        self.assertNotEqual(public_key, private_key)


class TestEccKey_P521(unittest.TestCase):

    def test_private_key(self):

        p521 = _curves['p521']

        key = EccKey(curve="P-521", d=1)
        self.assertEqual(key.d, 1)
        self.failUnless(key.has_private())
        self.assertEqual(key.pointQ.x, p521.Gx)
        self.assertEqual(key.pointQ.y, p521.Gy)

        point = EccPoint(p521.Gx, p521.Gy, "p521")
        key = EccKey(curve="P-521", d=1, point=point)
        self.assertEqual(key.d, 1)
        self.failUnless(key.has_private())
        self.assertEqual(key.pointQ, point)

        # Other names
        key = EccKey(curve="p521", d=1)
        key = EccKey(curve="secp521r1", d=1)
        key = EccKey(curve="prime521v1", d=1)

    def test_public_key(self):

        p521 = _curves['p521']
        point = EccPoint(p521.Gx, p521.Gy, 'p521')
        key = EccKey(curve="P-384", point=point)
        self.failIf(key.has_private())
        self.assertEqual(key.pointQ, point)

    def test_public_key_derived(self):

        priv_key = EccKey(curve="P-521", d=3)
        pub_key = priv_key.public_key()
        self.failIf(pub_key.has_private())
        self.assertEqual(priv_key.pointQ, pub_key.pointQ)

    def test_invalid_curve(self):
        self.assertRaises(ValueError, lambda: EccKey(curve="P-522", d=1))

    def test_invalid_d(self):
        self.assertRaises(ValueError, lambda: EccKey(curve="P-521", d=0))
        self.assertRaises(ValueError, lambda: EccKey(curve="P-521",
                                                     d=_curves['p521'].order))

    def test_equality(self):

        private_key = ECC.construct(d=3, curve="P-521")
        private_key2 = ECC.construct(d=3, curve="P-521")
        private_key3 = ECC.construct(d=4, curve="P-521")

        public_key = private_key.public_key()
        public_key2 = private_key2.public_key()
        public_key3 = private_key3.public_key()

        self.assertEqual(private_key, private_key2)
        self.assertNotEqual(private_key, private_key3)

        self.assertEqual(public_key, public_key2)
        self.assertNotEqual(public_key, public_key3)

        self.assertNotEqual(public_key, private_key)


class TestEccModule_P256(unittest.TestCase):

    def test_generate(self):

        key = ECC.generate(curve="P-256")
        self.failUnless(key.has_private())
        self.assertEqual(key.pointQ, EccPoint(_curves['p256'].Gx,
                                              _curves['p256'].Gy) * key.d,
                                              "p256")

        # Other names
        ECC.generate(curve="secp256r1")
        ECC.generate(curve="prime256v1")

    def test_construct(self):

        key = ECC.construct(curve="P-256", d=1)
        self.failUnless(key.has_private())
        self.assertEqual(key.pointQ, _curves['p256'].G)

        key = ECC.construct(curve="P-256", point_x=_curves['p256'].Gx,
                            point_y=_curves['p256'].Gy)
        self.failIf(key.has_private())
        self.assertEqual(key.pointQ, _curves['p256'].G)

        # Other names
        ECC.construct(curve="p256", d=1)
        ECC.construct(curve="secp256r1", d=1)
        ECC.construct(curve="prime256v1", d=1)

    def test_negative_construct(self):
        coord = dict(point_x=10, point_y=4)
        coordG = dict(point_x=_curves['p256'].Gx, point_y=_curves['p256'].Gy)

        self.assertRaises(ValueError, ECC.construct, curve="P-256", **coord)
        self.assertRaises(ValueError, ECC.construct, curve="P-256", d=2, **coordG)


class TestEccModule_P384(unittest.TestCase):

    def test_generate(self):

        curve = _curves['p384']
        key = ECC.generate(curve="P-384")
        self.failUnless(key.has_private())
        self.assertEqual(key.pointQ, EccPoint(curve.Gx, curve.Gy, "p384") * key.d)

        # Other names
        ECC.generate(curve="secp384r1")
        ECC.generate(curve="prime384v1")

    def test_construct(self):

        curve = _curves['p384']
        key = ECC.construct(curve="P-384", d=1)
        self.failUnless(key.has_private())
        self.assertEqual(key.pointQ, _curves['p384'].G)

        key = ECC.construct(curve="P-384", point_x=curve.Gx, point_y=curve.Gy)
        self.failIf(key.has_private())
        self.assertEqual(key.pointQ, curve.G)

        # Other names
        ECC.construct(curve="p384", d=1)
        ECC.construct(curve="secp384r1", d=1)
        ECC.construct(curve="prime384v1", d=1)

    def test_negative_construct(self):
        coord = dict(point_x=10, point_y=4)
        coordG = dict(point_x=_curves['p384'].Gx, point_y=_curves['p384'].Gy)

        self.assertRaises(ValueError, ECC.construct, curve="P-384", **coord)
        self.assertRaises(ValueError, ECC.construct, curve="P-384", d=2, **coordG)


class TestEccModule_P521(unittest.TestCase):

    def test_generate(self):

        curve = _curves['p521']
        key = ECC.generate(curve="P-521")
        self.failUnless(key.has_private())
        self.assertEqual(key.pointQ, EccPoint(curve.Gx, curve.Gy, "p521") * key.d)

        # Other names
        ECC.generate(curve="secp521r1")
        ECC.generate(curve="prime521v1")

    def test_construct(self):

        curve = _curves['p521']
        key = ECC.construct(curve="P-521", d=1)
        self.failUnless(key.has_private())
        self.assertEqual(key.pointQ, _curves['p521'].G)

        key = ECC.construct(curve="P-521", point_x=curve.Gx, point_y=curve.Gy)
        self.failIf(key.has_private())
        self.assertEqual(key.pointQ, curve.G)

        # Other names
        ECC.construct(curve="p521", d=1)
        ECC.construct(curve="secp521r1", d=1)
        ECC.construct(curve="prime521v1", d=1)

    def test_negative_construct(self):
        coord = dict(point_x=10, point_y=4)
        coordG = dict(point_x=_curves['p521'].Gx, point_y=_curves['p521'].Gy)

        self.assertRaises(ValueError, ECC.construct, curve="P-521", **coord)
        self.assertRaises(ValueError, ECC.construct, curve="P-521", d=2, **coordG)


def get_tests(config={}):
    tests = []
    tests += list_test_cases(TestEccPoint)
    tests += list_test_cases(TestEccPoint_NIST_P256)
    tests += list_test_cases(TestEccPoint_NIST_P384)
    tests += list_test_cases(TestEccPoint_NIST_P521)
    tests += list_test_cases(TestEccPoint_PAI_P256)
    tests += list_test_cases(TestEccPoint_PAI_P384)
    tests += list_test_cases(TestEccPoint_PAI_P521)
    tests += list_test_cases(TestEccKey_P256)
    tests += list_test_cases(TestEccKey_P384)
    tests += list_test_cases(TestEccKey_P521)
    tests += list_test_cases(TestEccModule_P256)
    tests += list_test_cases(TestEccModule_P384)
    tests += list_test_cases(TestEccModule_P521)
    return tests

if __name__ == '__main__':
    suite = lambda: unittest.TestSuite(get_tests())
    unittest.main(defaultTest='suite')
