trezor-firmware/core/tests/test_trezor.crypto.curve.nist256p1.py

from common import *  # isort:skip

from trezor.crypto import random
from trezor.crypto.curve import nist256p1


class TestCryptoNist256p1(unittest.TestCase):

    # vectors from http://point-at-infinity.org/ecc/nisttv
    vectors = [
        (
            1,
            "6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C2964FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5",
        ),
        (
            2,
            "7CF27B188D034F7E8A52380304B51AC3C08969E277F21B35A60B48FC4766997807775510DB8ED040293D9AC69F7430DBBA7DADE63CE982299E04B79D227873D1",
        ),
        (
            3,
            "5ECBE4D1A6330A44C8F7EF951D4BF165E6C6B721EFADA985FB41661BC6E7FD6C8734640C4998FF7E374B06CE1A64A2ECD82AB036384FB83D9A79B127A27D5032",
        ),
        (
            4,
            "E2534A3532D08FBBA02DDE659EE62BD0031FE2DB785596EF509302446B030852E0F1575A4C633CC719DFEE5FDA862D764EFC96C3F30EE0055C42C23F184ED8C6",
        ),
        (
            5,
            "51590B7A515140D2D784C85608668FDFEF8C82FD1F5BE52421554A0DC3D033EDE0C17DA8904A727D8AE1BF36BF8A79260D012F00D4D80888D1D0BB44FDA16DA4",
        ),
        (
            6,
            "B01A172A76A4602C92D3242CB897DDE3024C740DEBB215B4C6B0AAE93C2291A9E85C10743237DAD56FEC0E2DFBA703791C00F7701C7E16BDFD7C48538FC77FE2",
        ),
        (
            7,
            "8E533B6FA0BF7B4625BB30667C01FB607EF9F8B8A80FEF5B300628703187B2A373EB1DBDE03318366D069F83A6F5900053C73633CB041B21C55E1A86C1F400B4",
        ),
        (
            8,
            "62D9779DBEE9B0534042742D3AB54CADC1D238980FCE97DBB4DD9DC1DB6FB393AD5ACCBD91E9D8244FF15D771167CEE0A2ED51F6BBE76A78DA540A6A0F09957E",
        ),
        (
            9,
            "EA68D7B6FEDF0B71878938D51D71F8729E0ACB8C2C6DF8B3D79E8A4B90949EE02A2744C972C9FCE787014A964A8EA0C84D714FEAA4DE823FE85A224A4DD048FA",
        ),
        (
            10,
            "CEF66D6B2A3A993E591214D1EA223FB545CA6C471C48306E4C36069404C5723F878662A229AAAE906E123CDD9D3B4C10590DED29FE751EEECA34BBAA44AF0773",
        ),
        (
            11,
            "3ED113B7883B4C590638379DB0C21CDA16742ED0255048BF433391D374BC21D19099209ACCC4C8A224C843AFA4F4C68A090D04DA5E9889DAE2F8EEFCE82A3740",
        ),
        (
            12,
            "741DD5BDA817D95E4626537320E5D55179983028B2F82C99D500C5EE8624E3C40770B46A9C385FDC567383554887B1548EEB912C35BA5CA71995FF22CD4481D3",
        ),
        (
            13,
            "177C837AE0AC495A61805DF2D85EE2FC792E284B65EAD58A98E15D9D46072C0163BB58CD4EBEA558A24091ADB40F4E7226EE14C3A1FB4DF39C43BBE2EFC7BFD8",
        ),
        (
            14,
            "54E77A001C3862B97A76647F4336DF3CF126ACBE7A069C5E5709277324D2920BF599F1BB29F4317542121F8C05A2E7C37171EA77735090081BA7C82F60D0B375",
        ),
        (
            15,
            "F0454DC6971ABAE7ADFB378999888265AE03AF92DE3A0EF163668C63E59B9D5FB5B93EE3592E2D1F4E6594E51F9643E62A3B21CE75B5FA3F47E59CDE0D034F36",
        ),
        (
            16,
            "76A94D138A6B41858B821C629836315FCD28392EFF6CA038A5EB4787E1277C6EA985FE61341F260E6CB0A1B5E11E87208599A0040FC78BAA0E9DDD724B8C5110",
        ),
        (
            17,
            "47776904C0F1CC3A9C0984B66F75301A5FA68678F0D64AF8BA1ABCE34738A73EAA005EE6B5B957286231856577648E8381B2804428D5733F32F787FF71F1FCDC",
        ),
        (
            18,
            "1057E0AB5780F470DEFC9378D1C7C87437BB4C6F9EA55C63D936266DBD781FDAF6F1645A15CBE5DC9FA9B7DFD96EE5A7DCC11B5C5EF4F1F78D83B3393C6A45A2",
        ),
        (
            19,
            "CB6D2861102C0C25CE39B7C17108C507782C452257884895C1FC7B74AB03ED8358D7614B24D9EF515C35E7100D6D6CE4A496716E30FA3E03E39150752BCECDAA",
        ),
        (
            20,
            "83A01A9378395BAB9BCD6A0AD03CC56D56E6B19250465A94A234DC4C6B28DA9A76E49B6DE2F73234AE6A5EB9D612B75C9F2202BB6923F54FF8240AAA86F640B8",
        ),
        (
            112233445566778899,
            "339150844EC15234807FE862A86BE77977DBFB3AE3D96F4C22795513AEAAB82FB1C14DDFDC8EC1B2583F51E85A5EB3A155840F2034730E9B5ADA38B674336A21",
        ),
        (
            112233445566778899112233445566778899,
            "1B7E046A076CC25E6D7FA5003F6729F665CC3241B5ADAB12B498CD32F2803264BFEA79BE2B666B073DB69A2A241ADAB0738FE9D2DD28B5604EB8C8CF097C457B",
        ),
        (
            29852220098221261079183923314599206100666902414330245206392788703677545185283,
            "9EACE8F4B071E677C5350B02F2BB2B384AAE89D58AA72CA97A170572E0FB222F1BBDAEC2430B09B93F7CB08678636CE12EAAFD58390699B5FD2F6E1188FC2A78",
        ),
        (
            57896042899961394862005778464643882389978449576758748073725983489954366354431,
            "878F22CC6DB6048D2B767268F22FFAD8E56AB8E2DC615F7BD89F1E350500DD8D714A5D7BB901C9C5853400D12341A892EF45D87FC553786756C4F0C9391D763E",
        ),
        (
            1766845392945710151501889105729049882997660004824848915955419660366636031,
            "659A379625AB122F2512B8DADA02C6348D53B54452DFF67AC7ACE4E8856295CA49D81AB97B648464D0B4A288BD7818FAB41A16426E943527C4FED8736C53D0F6",
        ),
        (
            28948025760307534517734791687894775804466072615242963443097661355606862201087,
            "CBCEAAA8A4DD44BBCE58E8DB7740A5510EC2CB7EA8DA8D8F036B3FB04CDA4DE44BD7AA301A80D7F59FD983FEDBE59BB7B2863FE46494935E3745B360E32332FA",
        ),
        (
            113078210460870548944811695960290644973229224625838436424477095834645696384,
            "F0C4A0576154FF3A33A3460D42EAED806E854DFA37125221D37935124BA462A45B392FA964434D29EEC6C9DBC261CF116796864AA2FAADB984A2DF38D1AEF7A3",
        ),
        (
            12078056106883488161242983286051341125085761470677906721917479268909056,
            "5E6C8524B6369530B12C62D31EC53E0288173BD662BDF680B53A41ECBCAD00CC447FE742C2BFEF4D0DB14B5B83A2682309B5618E0064A94804E9282179FE089F",
        ),
        (
            57782969857385448082319957860328652998540760998293976083718804450708503920639,
            "03792E541BC209076A3D7920A915021ECD396A6EB5C3960024BE5575F3223484FC774AE092403101563B712F68170312304F20C80B40C06282063DB25F268DE4",
        ),
        (
            57896017119460046759583662757090100341435943767777707906455551163257755533312,
            "2379FF85AB693CDF901D6CE6F2473F39C04A2FE3DCD842CE7AAB0E002095BCF8F8B476530A634589D5129E46F322B02FBC610A703D80875EE70D7CE1877436A1",
        ),
        (
            452312848374287284681282171017647412726433684238464212999305864837160993279,
            "C1E4072C529BF2F44DA769EFC934472848003B3AF2C0F5AA8F8DDBD53E12ED7C39A6EE77812BB37E8079CD01ED649D3830FCA46F718C1D3993E4A591824ABCDB",
        ),
        (
            904571339174065134293634407946054000774746055866917729876676367558469746684,
            "34DFBC09404C21E250A9B40FA8772897AC63A094877DB65862B61BD1507B34F3CF6F8A876C6F99CEAEC87148F18C7E1E0DA6E165FFC8ED82ABB65955215F77D3",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044349,
            "83A01A9378395BAB9BCD6A0AD03CC56D56E6B19250465A94A234DC4C6B28DA9A891B64911D08CDCC5195A14629ED48A360DDFD4596DC0AB007DBF5557909BF47",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044350,
            "CB6D2861102C0C25CE39B7C17108C507782C452257884895C1FC7B74AB03ED83A7289EB3DB2610AFA3CA18EFF292931B5B698E92CF05C1FC1C6EAF8AD4313255",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044351,
            "1057E0AB5780F470DEFC9378D1C7C87437BB4C6F9EA55C63D936266DBD781FDA090E9BA4EA341A246056482026911A58233EE4A4A10B0E08727C4CC6C395BA5D",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044352,
            "47776904C0F1CC3A9C0984B66F75301A5FA68678F0D64AF8BA1ABCE34738A73E55FFA1184A46A8D89DCE7A9A889B717C7E4D7FBCD72A8CC0CD0878008E0E0323",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044353,
            "76A94D138A6B41858B821C629836315FCD28392EFF6CA038A5EB4787E1277C6E567A019DCBE0D9F2934F5E4A1EE178DF7A665FFCF0387455F162228DB473AEEF",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044354,
            "F0454DC6971ABAE7ADFB378999888265AE03AF92DE3A0EF163668C63E59B9D5F4A46C11BA6D1D2E1B19A6B1AE069BC19D5C4DE328A4A05C0B81A6321F2FCB0C9",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044355,
            "54E77A001C3862B97A76647F4336DF3CF126ACBE7A069C5E5709277324D2920B0A660E43D60BCE8BBDEDE073FA5D183C8E8E15898CAF6FF7E45837D09F2F4C8A",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044356,
            "177C837AE0AC495A61805DF2D85EE2FC792E284B65EAD58A98E15D9D46072C019C44A731B1415AA85DBF6E524BF0B18DD911EB3D5E04B20C63BC441D10384027",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044357,
            "741DD5BDA817D95E4626537320E5D55179983028B2F82C99D500C5EE8624E3C4F88F4B9463C7A024A98C7CAAB7784EAB71146ED4CA45A358E66A00DD32BB7E2C",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044358,
            "3ED113B7883B4C590638379DB0C21CDA16742ED0255048BF433391D374BC21D16F66DF64333B375EDB37BC505B0B3975F6F2FB26A16776251D07110317D5C8BF",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044359,
            "CEF66D6B2A3A993E591214D1EA223FB545CA6C471C48306E4C36069404C5723F78799D5CD655517091EDC32262C4B3EFA6F212D7018AE11135CB4455BB50F88C",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044360,
            "EA68D7B6FEDF0B71878938D51D71F8729E0ACB8C2C6DF8B3D79E8A4B90949EE0D5D8BB358D36031978FEB569B5715F37B28EB0165B217DC017A5DDB5B22FB705",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044361,
            "62D9779DBEE9B0534042742D3AB54CADC1D238980FCE97DBB4DD9DC1DB6FB39352A533416E1627DCB00EA288EE98311F5D12AE0A4418958725ABF595F0F66A81",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044362,
            "8E533B6FA0BF7B4625BB30667C01FB607EF9F8B8A80FEF5B300628703187B2A38C14E2411FCCE7CA92F9607C590A6FFFAC38C9CD34FBE4DE3AA1E5793E0BFF4B",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044363,
            "B01A172A76A4602C92D3242CB897DDE3024C740DEBB215B4C6B0AAE93C2291A917A3EF8ACDC8252B9013F1D20458FC86E3FF0890E381E9420283B7AC7038801D",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044364,
            "51590B7A515140D2D784C85608668FDFEF8C82FD1F5BE52421554A0DC3D033ED1F3E82566FB58D83751E40C9407586D9F2FED1002B27F7772E2F44BB025E925B",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044365,
            "E2534A3532D08FBBA02DDE659EE62BD0031FE2DB785596EF509302446B0308521F0EA8A4B39CC339E62011A02579D289B103693D0CF11FFAA3BD3DC0E7B12739",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044366,
            "5ECBE4D1A6330A44C8F7EF951D4BF165E6C6B721EFADA985FB41661BC6E7FD6C78CB9BF2B6670082C8B4F931E59B5D1327D54FCAC7B047C265864ED85D82AFCD",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044367,
            "7CF27B188D034F7E8A52380304B51AC3C08969E277F21B35A60B48FC47669978F888AAEE24712FC0D6C26539608BCF244582521AC3167DD661FB4862DD878C2E",
        ),
        (
            115792089210356248762697446949407573529996955224135760342422259061068512044368,
            "6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296B01CBD1C01E58065711814B583F061E9D431CCA994CEA1313449BF97C840AE0A",
        ),
    ]

    def test_generate_secret(self):
        for _ in range(100):
            sk = nist256p1.generate_secret()
            self.assertTrue(len(sk) == 32)
            self.assertTrue(sk != b"\x00" * 32)
            self.assertTrue(
                sk
                < b"\xFF\xFF\xFF\xFF\x00\x00\x00\x00\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xBC\xE6\xFA\xAD\xA7\x17\x9E\x84\xF3\xB9\xCA\xC2\xFC\x63\x25\x51"
            )

    def test_publickey(self):
        for sk, pk in self.vectors:
            sk = hex(sk)[2:]
            if len(sk) < 64:
                sk = "0" * (64 - len(sk)) + sk
            pk = pk.lower()
            pk65 = hexlify(
                nist256p1.publickey(unhexlify(sk), False)
            ).decode()  # uncompressed
            self.assertEqual(str(pk65), "04" + pk)
            pk33 = hexlify(nist256p1.publickey(unhexlify(sk))).decode()
            if pk[-1] in "02468ace":
                self.assertEqual(pk33, "02" + pk[:64])
            else:
                self.assertEqual(pk33, "03" + pk[:64])

    def test_sign_verify_min_max(self):
        sk = nist256p1.generate_secret()
        pk = nist256p1.publickey(sk)

        dig = bytes([1] + [0] * 31)
        sig = nist256p1.sign(sk, dig)
        self.assertTrue(nist256p1.verify(pk, sig, dig))
        self.assertTrue(nist256p1.verify(pk, sig[1:], dig))

        dig = bytes([0] * 31 + [1])
        sig = nist256p1.sign(sk, dig)
        self.assertTrue(nist256p1.verify(pk, sig, dig))
        self.assertTrue(nist256p1.verify(pk, sig[1:], dig))

        dig = bytes([0xFF] * 32)
        sig = nist256p1.sign(sk, dig)
        self.assertTrue(nist256p1.verify(pk, sig, dig))
        self.assertTrue(nist256p1.verify(pk, sig[1:], dig))

    def test_sign_verify_random(self):
        for _ in range(100):
            sk = nist256p1.generate_secret()
            pk = nist256p1.publickey(sk)
            dig = random.bytes(32)
            sig = nist256p1.sign(sk, dig)
            self.assertTrue(nist256p1.verify(pk, sig, dig))
            self.assertTrue(nist256p1.verify(pk, sig[1:], dig))

    def test_verify_recover(self):
        for compressed in [False, True]:
            for _ in range(100):
                sk = nist256p1.generate_secret()
                pk = nist256p1.publickey(sk, compressed)
                dig = random.bytes(32)
                sig = nist256p1.sign(sk, dig, compressed)
                pk2 = nist256p1.verify_recover(sig, dig)
                self.assertEqual(pk, pk2)


if __name__ == "__main__":
    unittest.main()