#
# Copyright (c) 2022, Legrandin <helderijs@gmail.com>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in
#    the documentation and/or other materials provided with the
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# ===================================================================

import unittest
from binascii import unhexlify

from Crypto.PublicKey import ECC
from Crypto.Signature import eddsa
from Crypto.Hash import SHA512, SHAKE256
from Crypto.SelfTest.st_common import list_test_cases
from Crypto.SelfTest.loader import load_test_vectors_wycheproof
from Crypto.Util.number import bytes_to_long

rfc8032_tv_str = (
    # 7.1 Ed25519
    (
        "9d61b19deffd5a60ba844af492ec2cc44449c5697b326919703bac031cae7f60",
        "d75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a",
        "",
        None,
        "",
        "e5564300c360ac729086e2cc806e828a"
        "84877f1eb8e5d974d873e06522490155"
        "5fb8821590a33bacc61e39701cf9b46b"
        "d25bf5f0595bbe24655141438e7a100b"
    ),
    (
        "4ccd089b28ff96da9db6c346ec114e0f5b8a319f35aba624da8cf6ed4fb8a6fb",
        "3d4017c3e843895a92b70aa74d1b7ebc9c982ccf2ec4968cc0cd55f12af4660c",
        "72",
        None,
        "",
        "92a009a9f0d4cab8720e820b5f642540"
        "a2b27b5416503f8fb3762223ebdb69da"
        "085ac1e43e15996e458f3613d0f11d8c"
        "387b2eaeb4302aeeb00d291612bb0c00"
    ),
    (
        "c5aa8df43f9f837bedb7442f31dcb7b166d38535076f094b85ce3a2e0b4458f7",
        "fc51cd8e6218a1a38da47ed00230f0580816ed13ba3303ac5deb911548908025",
        "af82",
        None,
        "",
        "6291d657deec24024827e69c3abe01a3"
        "0ce548a284743a445e3680d7db5ac3ac"
        "18ff9b538d16f290ae67f760984dc659"
        "4a7c15e9716ed28dc027beceea1ec40a"
    ),
    (
        "f5e5767cf153319517630f226876b86c8160cc583bc013744c6bf255f5cc0ee5",
        "278117fc144c72340f67d0f2316e8386ceffbf2b2428c9c51fef7c597f1d426e",
        "08b8b2b733424243760fe426a4b54908"
        "632110a66c2f6591eabd3345e3e4eb98"
        "fa6e264bf09efe12ee50f8f54e9f77b1"
        "e355f6c50544e23fb1433ddf73be84d8"
        "79de7c0046dc4996d9e773f4bc9efe57"
        "38829adb26c81b37c93a1b270b20329d"
        "658675fc6ea534e0810a4432826bf58c"
        "941efb65d57a338bbd2e26640f89ffbc"
        "1a858efcb8550ee3a5e1998bd177e93a"
        "7363c344fe6b199ee5d02e82d522c4fe"
        "ba15452f80288a821a579116ec6dad2b"
        "3b310da903401aa62100ab5d1a36553e"
        "06203b33890cc9b832f79ef80560ccb9"
        "a39ce767967ed628c6ad573cb116dbef"
        "efd75499da96bd68a8a97b928a8bbc10"
        "3b6621fcde2beca1231d206be6cd9ec7"
        "aff6f6c94fcd7204ed3455c68c83f4a4"
        "1da4af2b74ef5c53f1d8ac70bdcb7ed1"
        "85ce81bd84359d44254d95629e9855a9"
        "4a7c1958d1f8ada5d0532ed8a5aa3fb2"
        "d17ba70eb6248e594e1a2297acbbb39d"
        "502f1a8c6eb6f1ce22b3de1a1f40cc24"
        "554119a831a9aad6079cad88425de6bd"
        "e1a9187ebb6092cf67bf2b13fd65f270"
        "88d78b7e883c8759d2c4f5c65adb7553"
        "878ad575f9fad878e80a0c9ba63bcbcc"
        "2732e69485bbc9c90bfbd62481d9089b"
        "eccf80cfe2df16a2cf65bd92dd597b07"
        "07e0917af48bbb75fed413d238f5555a"
        "7a569d80c3414a8d0859dc65a46128ba"
        "b27af87a71314f318c782b23ebfe808b"
        "82b0ce26401d2e22f04d83d1255dc51a"
        "ddd3b75a2b1ae0784504df543af8969b"
        "e3ea7082ff7fc9888c144da2af58429e"
        "c96031dbcad3dad9af0dcbaaaf268cb8"
        "fcffead94f3c7ca495e056a9b47acdb7"
        "51fb73e666c6c655ade8297297d07ad1"
        "ba5e43f1bca32301651339e22904cc8c"
        "42f58c30c04aafdb038dda0847dd988d"
        "cda6f3bfd15c4b4c4525004aa06eeff8"
        "ca61783aacec57fb3d1f92b0fe2fd1a8"
        "5f6724517b65e614ad6808d6f6ee34df"
        "f7310fdc82aebfd904b01e1dc54b2927"
        "094b2db68d6f903b68401adebf5a7e08"
        "d78ff4ef5d63653a65040cf9bfd4aca7"
        "984a74d37145986780fc0b16ac451649"
        "de6188a7dbdf191f64b5fc5e2ab47b57"
        "f7f7276cd419c17a3ca8e1b939ae49e4"
        "88acba6b965610b5480109c8b17b80e1"
        "b7b750dfc7598d5d5011fd2dcc5600a3"
        "2ef5b52a1ecc820e308aa342721aac09"
        "43bf6686b64b2579376504ccc493d97e"
        "6aed3fb0f9cd71a43dd497f01f17c0e2"
        "cb3797aa2a2f256656168e6c496afc5f"
        "b93246f6b1116398a346f1a641f3b041"
        "e989f7914f90cc2c7fff357876e506b5"
        "0d334ba77c225bc307ba537152f3f161"
        "0e4eafe595f6d9d90d11faa933a15ef1"
        "369546868a7f3a45a96768d40fd9d034"
        "12c091c6315cf4fde7cb68606937380d"
        "b2eaaa707b4c4185c32eddcdd306705e"
        "4dc1ffc872eeee475a64dfac86aba41c"
        "0618983f8741c5ef68d3a101e8a3b8ca"
        "c60c905c15fc910840b94c00a0b9d0",
        None,
        "",
        "0aab4c900501b3e24d7cdf4663326a3a"
        "87df5e4843b2cbdb67cbf6e460fec350"
        "aa5371b1508f9f4528ecea23c436d94b"
        "5e8fcd4f681e30a6ac00a9704a188a03"
    ),
    # 7.2 Ed25519ctx
    (
        "0305334e381af78f141cb666f6199f57"
        "bc3495335a256a95bd2a55bf546663f6",
        "dfc9425e4f968f7f0c29f0259cf5f9ae"
        "d6851c2bb4ad8bfb860cfee0ab248292",
        "f726936d19c800494e3fdaff20b276a8",
        None,
        "666f6f",
        "55a4cc2f70a54e04288c5f4cd1e45a7b"
        "b520b36292911876cada7323198dd87a"
        "8b36950b95130022907a7fb7c4e9b2d5"
        "f6cca685a587b4b21f4b888e4e7edb0d"
    ),
    (
        "0305334e381af78f141cb666f6199f57"
        "bc3495335a256a95bd2a55bf546663f6",
        "dfc9425e4f968f7f0c29f0259cf5f9ae"
        "d6851c2bb4ad8bfb860cfee0ab248292",
        "f726936d19c800494e3fdaff20b276a8",
        None,
        "626172",
        "fc60d5872fc46b3aa69f8b5b4351d580"
        "8f92bcc044606db097abab6dbcb1aee3"
        "216c48e8b3b66431b5b186d1d28f8ee1"
        "5a5ca2df6668346291c2043d4eb3e90d"
    ),
    (
        "0305334e381af78f141cb666f6199f57"
        "bc3495335a256a95bd2a55bf546663f6",
        "dfc9425e4f968f7f0c29f0259cf5f9ae"
        "d6851c2bb4ad8bfb860cfee0ab248292",
        "508e9e6882b979fea900f62adceaca35",
        None,
        "666f6f",
        "8b70c1cc8310e1de20ac53ce28ae6e72"
        "07f33c3295e03bb5c0732a1d20dc6490"
        "8922a8b052cf99b7c4fe107a5abb5b2c"
        "4085ae75890d02df26269d8945f84b0b"
    ),
    (
        "ab9c2853ce297ddab85c993b3ae14bca"
        "d39b2c682beabc27d6d4eb20711d6560",
        "0f1d1274943b91415889152e893d80e9"
        "3275a1fc0b65fd71b4b0dda10ad7d772",
        "f726936d19c800494e3fdaff20b276a8",
        None,
        "666f6f",
        "21655b5f1aa965996b3f97b3c849eafb"
        "a922a0a62992f73b3d1b73106a84ad85"
        "e9b86a7b6005ea868337ff2d20a7f5fb"
        "d4cd10b0be49a68da2b2e0dc0ad8960f"
    ),
    # 7.3 Ed25519ph
    (
        "833fe62409237b9d62ec77587520911e"
        "9a759cec1d19755b7da901b96dca3d42",
        "ec172b93ad5e563bf4932c70e1245034"
        "c35467ef2efd4d64ebf819683467e2bf",
        "616263",
        SHA512,
        "",
        "98a70222f0b8121aa9d30f813d683f80"
        "9e462b469c7ff87639499bb94e6dae41"
        "31f85042463c2a355a2003d062adf5aa"
        "a10b8c61e636062aaad11c2a26083406"
    ),
    # 7.4 Ed448
    (
        "6c82a562cb808d10d632be89c8513ebf6c929f34ddfa8c9f63c9960ef6e348a3"
        "528c8a3fcc2f044e39a3fc5b94492f8f032e7549a20098f95b",
        "5fd7449b59b461fd2ce787ec616ad46a1da1342485a70e1f8a0ea75d80e96778"
        "edf124769b46c7061bd6783df1e50f6cd1fa1abeafe8256180",
        "",
        None,
        "",
        "533a37f6bbe457251f023c0d88f976ae2dfb504a843e34d2074fd823d41a591f"
        "2b233f034f628281f2fd7a22ddd47d7828c59bd0a21bfd3980ff0d2028d4b18a"
        "9df63e006c5d1c2d345b925d8dc00b4104852db99ac5c7cdda8530a113a0f4db"
        "b61149f05a7363268c71d95808ff2e652600"
    ),
    (
        "c4eab05d357007c632f3dbb48489924d552b08fe0c353a0d4a1f00acda2c463a"
        "fbea67c5e8d2877c5e3bc397a659949ef8021e954e0a12274e",
        "43ba28f430cdff456ae531545f7ecd0ac834a55d9358c0372bfa0c6c6798c086"
        "6aea01eb00742802b8438ea4cb82169c235160627b4c3a9480",
        "03",
        None,
        "",
        "26b8f91727bd62897af15e41eb43c377efb9c610d48f2335cb0bd0087810f435"
        "2541b143c4b981b7e18f62de8ccdf633fc1bf037ab7cd779805e0dbcc0aae1cb"
        "cee1afb2e027df36bc04dcecbf154336c19f0af7e0a6472905e799f1953d2a0f"
        "f3348ab21aa4adafd1d234441cf807c03a00",
    ),
    (
        "c4eab05d357007c632f3dbb48489924d552b08fe0c353a0d4a1f00acda2c463a"
        "fbea67c5e8d2877c5e3bc397a659949ef8021e954e0a12274e",
        "43ba28f430cdff456ae531545f7ecd0ac834a55d9358c0372bfa0c6c6798c086"
        "6aea01eb00742802b8438ea4cb82169c235160627b4c3a9480",
        "03",
        None,
        "666f6f",
        "d4f8f6131770dd46f40867d6fd5d5055de43541f8c5e35abbcd001b32a89f7d2"
        "151f7647f11d8ca2ae279fb842d607217fce6e042f6815ea000c85741de5c8da"
        "1144a6a1aba7f96de42505d7a7298524fda538fccbbb754f578c1cad10d54d0d"
        "5428407e85dcbc98a49155c13764e66c3c00",
    ),
    (
        "cd23d24f714274e744343237b93290f511f6425f98e64459ff203e8985083ffd"
        "f60500553abc0e05cd02184bdb89c4ccd67e187951267eb328",
        "dcea9e78f35a1bf3499a831b10b86c90aac01cd84b67a0109b55a36e9328b1e3"
        "65fce161d71ce7131a543ea4cb5f7e9f1d8b00696447001400",
        "0c3e544074ec63b0265e0c",
        None,
        "",
        "1f0a8888ce25e8d458a21130879b840a9089d999aaba039eaf3e3afa090a09d3"
        "89dba82c4ff2ae8ac5cdfb7c55e94d5d961a29fe0109941e00b8dbdeea6d3b05"
        "1068df7254c0cdc129cbe62db2dc957dbb47b51fd3f213fb8698f064774250a5"
        "028961c9bf8ffd973fe5d5c206492b140e00",
    ),
    (
        "258cdd4ada32ed9c9ff54e63756ae582fb8fab2ac721f2c8e676a72768513d93"
        "9f63dddb55609133f29adf86ec9929dccb52c1c5fd2ff7e21b",
        "3ba16da0c6f2cc1f30187740756f5e798d6bc5fc015d7c63cc9510ee3fd44adc"
        "24d8e968b6e46e6f94d19b945361726bd75e149ef09817f580",
        "64a65f3cdedcdd66811e2915",
        None,
        "",
        "7eeeab7c4e50fb799b418ee5e3197ff6bf15d43a14c34389b59dd1a7b1b85b4a"
        "e90438aca634bea45e3a2695f1270f07fdcdf7c62b8efeaf00b45c2c96ba457e"
        "b1a8bf075a3db28e5c24f6b923ed4ad747c3c9e03c7079efb87cb110d3a99861"
        "e72003cbae6d6b8b827e4e6c143064ff3c00",
    ),
    (
        "7ef4e84544236752fbb56b8f31a23a10e42814f5f55ca037cdcc11c64c9a3b29"
        "49c1bb60700314611732a6c2fea98eebc0266a11a93970100e",
        "b3da079b0aa493a5772029f0467baebee5a8112d9d3a22532361da294f7bb381"
        "5c5dc59e176b4d9f381ca0938e13c6c07b174be65dfa578e80",
        "64a65f3cdedcdd66811e2915e7",
        None,
        "",
        "6a12066f55331b6c22acd5d5bfc5d71228fbda80ae8dec26bdd306743c5027cb"
        "4890810c162c027468675ecf645a83176c0d7323a2ccde2d80efe5a1268e8aca"
        "1d6fbc194d3f77c44986eb4ab4177919ad8bec33eb47bbb5fc6e28196fd1caf5"
        "6b4e7e0ba5519234d047155ac727a1053100",
    ),
    (
        "d65df341ad13e008567688baedda8e9dcdc17dc024974ea5b4227b6530e339bf"
        "f21f99e68ca6968f3cca6dfe0fb9f4fab4fa135d5542ea3f01",
        "df9705f58edbab802c7f8363cfe5560ab1c6132c20a9f1dd163483a26f8ac53a"
        "39d6808bf4a1dfbd261b099bb03b3fb50906cb28bd8a081f00",
        "bd0f6a3747cd561bdddf4640a332461a4a30a12a434cd0bf40d766d9c6d458e5"
        "512204a30c17d1f50b5079631f64eb3112182da3005835461113718d1a5ef944",
        None,
        "",
        "554bc2480860b49eab8532d2a533b7d578ef473eeb58c98bb2d0e1ce488a98b1"
        "8dfde9b9b90775e67f47d4a1c3482058efc9f40d2ca033a0801b63d45b3b722e"
        "f552bad3b4ccb667da350192b61c508cf7b6b5adadc2c8d9a446ef003fb05cba"
        "5f30e88e36ec2703b349ca229c2670833900",
    ),
    (
        "2ec5fe3c17045abdb136a5e6a913e32ab75ae68b53d2fc149b77e504132d3756"
        "9b7e766ba74a19bd6162343a21c8590aa9cebca9014c636df5",
        "79756f014dcfe2079f5dd9e718be4171e2ef2486a08f25186f6bff43a9936b9b"
        "fe12402b08ae65798a3d81e22e9ec80e7690862ef3d4ed3a00",
        "15777532b0bdd0d1389f636c5f6b9ba734c90af572877e2d272dd078aa1e567c"
        "fa80e12928bb542330e8409f3174504107ecd5efac61ae7504dabe2a602ede89"
        "e5cca6257a7c77e27a702b3ae39fc769fc54f2395ae6a1178cab4738e543072f"
        "c1c177fe71e92e25bf03e4ecb72f47b64d0465aaea4c7fad372536c8ba516a60"
        "39c3c2a39f0e4d832be432dfa9a706a6e5c7e19f397964ca4258002f7c0541b5"
        "90316dbc5622b6b2a6fe7a4abffd96105eca76ea7b98816af0748c10df048ce0"
        "12d901015a51f189f3888145c03650aa23ce894c3bd889e030d565071c59f409"
        "a9981b51878fd6fc110624dcbcde0bf7a69ccce38fabdf86f3bef6044819de11",
        None,
        "",
        "c650ddbb0601c19ca11439e1640dd931f43c518ea5bea70d3dcde5f4191fe53f"
        "00cf966546b72bcc7d58be2b9badef28743954e3a44a23f880e8d4f1cfce2d7a"
        "61452d26da05896f0a50da66a239a8a188b6d825b3305ad77b73fbac0836ecc6"
        "0987fd08527c1a8e80d5823e65cafe2a3d00",
    ),
    (
        "872d093780f5d3730df7c212664b37b8a0f24f56810daa8382cd4fa3f77634ec"
        "44dc54f1c2ed9bea86fafb7632d8be199ea165f5ad55dd9ce8",
        "a81b2e8a70a5ac94ffdbcc9badfc3feb0801f258578bb114ad44ece1ec0e799d"
        "a08effb81c5d685c0c56f64eecaef8cdf11cc38737838cf400",
        "6ddf802e1aae4986935f7f981ba3f0351d6273c0a0c22c9c0e8339168e675412"
        "a3debfaf435ed651558007db4384b650fcc07e3b586a27a4f7a00ac8a6fec2cd"
        "86ae4bf1570c41e6a40c931db27b2faa15a8cedd52cff7362c4e6e23daec0fbc"
        "3a79b6806e316efcc7b68119bf46bc76a26067a53f296dafdbdc11c77f7777e9"
        "72660cf4b6a9b369a6665f02e0cc9b6edfad136b4fabe723d2813db3136cfde9"
        "b6d044322fee2947952e031b73ab5c603349b307bdc27bc6cb8b8bbd7bd32321"
        "9b8033a581b59eadebb09b3c4f3d2277d4f0343624acc817804728b25ab79717"
        "2b4c5c21a22f9c7839d64300232eb66e53f31c723fa37fe387c7d3e50bdf9813"
        "a30e5bb12cf4cd930c40cfb4e1fc622592a49588794494d56d24ea4b40c89fc0"
        "596cc9ebb961c8cb10adde976a5d602b1c3f85b9b9a001ed3c6a4d3b1437f520"
        "96cd1956d042a597d561a596ecd3d1735a8d570ea0ec27225a2c4aaff26306d1"
        "526c1af3ca6d9cf5a2c98f47e1c46db9a33234cfd4d81f2c98538a09ebe76998"
        "d0d8fd25997c7d255c6d66ece6fa56f11144950f027795e653008f4bd7ca2dee"
        "85d8e90f3dc315130ce2a00375a318c7c3d97be2c8ce5b6db41a6254ff264fa6"
        "155baee3b0773c0f497c573f19bb4f4240281f0b1f4f7be857a4e59d416c06b4"
        "c50fa09e1810ddc6b1467baeac5a3668d11b6ecaa901440016f389f80acc4db9"
        "77025e7f5924388c7e340a732e554440e76570f8dd71b7d640b3450d1fd5f041"
        "0a18f9a3494f707c717b79b4bf75c98400b096b21653b5d217cf3565c9597456"
        "f70703497a078763829bc01bb1cbc8fa04eadc9a6e3f6699587a9e75c94e5bab"
        "0036e0b2e711392cff0047d0d6b05bd2a588bc109718954259f1d86678a579a3"
        "120f19cfb2963f177aeb70f2d4844826262e51b80271272068ef5b3856fa8535"
        "aa2a88b2d41f2a0e2fda7624c2850272ac4a2f561f8f2f7a318bfd5caf969614"
        "9e4ac824ad3460538fdc25421beec2cc6818162d06bbed0c40a387192349db67"
        "a118bada6cd5ab0140ee273204f628aad1c135f770279a651e24d8c14d75a605"
        "9d76b96a6fd857def5e0b354b27ab937a5815d16b5fae407ff18222c6d1ed263"
        "be68c95f32d908bd895cd76207ae726487567f9a67dad79abec316f683b17f2d"
        "02bf07e0ac8b5bc6162cf94697b3c27cd1fea49b27f23ba2901871962506520c"
        "392da8b6ad0d99f7013fbc06c2c17a569500c8a7696481c1cd33e9b14e40b82e"
        "79a5f5db82571ba97bae3ad3e0479515bb0e2b0f3bfcd1fd33034efc6245eddd"
        "7ee2086ddae2600d8ca73e214e8c2b0bdb2b047c6a464a562ed77b73d2d841c4"
        "b34973551257713b753632efba348169abc90a68f42611a40126d7cb21b58695"
        "568186f7e569d2ff0f9e745d0487dd2eb997cafc5abf9dd102e62ff66cba87",
        None,
        "",
        "e301345a41a39a4d72fff8df69c98075a0cc082b802fc9b2b6bc503f926b65bd"
        "df7f4c8f1cb49f6396afc8a70abe6d8aef0db478d4c6b2970076c6a0484fe76d"
        "76b3a97625d79f1ce240e7c576750d295528286f719b413de9ada3e8eb78ed57"
        "3603ce30d8bb761785dc30dbc320869e1a00"
    ),
    # 7.5 Ed448ph
    (
        "833fe62409237b9d62ec77587520911e9a759cec1d19755b7da901b96dca3d42"
        "ef7822e0d5104127dc05d6dbefde69e3ab2cec7c867c6e2c49",
        "259b71c19f83ef77a7abd26524cbdb3161b590a48f7d17de3ee0ba9c52beb743"
        "c09428a131d6b1b57303d90d8132c276d5ed3d5d01c0f53880",
        "616263",
        SHAKE256,
        "",
        "822f6901f7480f3d5f562c592994d9693602875614483256505600bbc281ae38"
        "1f54d6bce2ea911574932f52a4e6cadd78769375ec3ffd1b801a0d9b3f4030cd"
        "433964b6457ea39476511214f97469b57dd32dbc560a9a94d00bff07620464a3"
        "ad203df7dc7ce360c3cd3696d9d9fab90f00"
    ),
    (
        "833fe62409237b9d62ec77587520911e9a759cec1d19755b7da901b96dca3d42"
        "ef7822e0d5104127dc05d6dbefde69e3ab2cec7c867c6e2c49",
        "259b71c19f83ef77a7abd26524cbdb3161b590a48f7d17de3ee0ba9c52beb743"
        "c09428a131d6b1b57303d90d8132c276d5ed3d5d01c0f53880",
        "616263",
        SHAKE256,
        "666f6f",
        "c32299d46ec8ff02b54540982814dce9a05812f81962b649d528095916a2aa48"
        "1065b1580423ef927ecf0af5888f90da0f6a9a85ad5dc3f280d91224ba9911a3"
        "653d00e484e2ce232521481c8658df304bb7745a73514cdb9bf3e15784ab7128"
        "4f8d0704a608c54a6b62d97beb511d132100",
    ),
)


rfc8032_tv_bytes = []
for tv_str in rfc8032_tv_str:
    rfc8032_tv_bytes.append([unhexlify(i) if isinstance(i, str) else i for i in tv_str])


class TestEdDSA(unittest.TestCase):

    def test_sign(self):
        for sk, _, msg, hashmod, ctx, exp_signature in rfc8032_tv_bytes:
            key = eddsa.import_private_key(sk)
            signer = eddsa.new(key, 'rfc8032', context=ctx)
            if hashmod is None:
                # PureEdDSA
                signature = signer.sign(msg)
            else:
                # HashEdDSA
                hashobj = hashmod.new(msg)
                signature = signer.sign(hashobj)
            self.assertEqual(exp_signature, signature)

    def test_verify(self):
        for _, pk, msg, hashmod, ctx, exp_signature in rfc8032_tv_bytes:
            key = eddsa.import_public_key(pk)
            verifier = eddsa.new(key, 'rfc8032', context=ctx)
            if hashmod is None:
                # PureEdDSA
                verifier.verify(msg, exp_signature)
            else:
                # HashEdDSA
                hashobj = hashmod.new(msg)
                verifier.verify(hashobj, exp_signature)

    def test_negative(self):
        key = ECC.generate(curve="ed25519")
        self.assertRaises(ValueError, eddsa.new, key, 'rfc9999')

        nist_key = ECC.generate(curve="p256")
        self.assertRaises(ValueError, eddsa.new, nist_key, 'rfc8032')


class TestExport_Ed25519(unittest.TestCase):

    def test_raw(self):
        key = ECC.generate(curve="Ed25519")
        x, y = key.pointQ.xy
        raw = bytearray(key._export_eddsa())
        sign_x = raw[31] >> 7
        raw[31] &= 0x7F
        yt = bytes_to_long(raw[::-1])
        self.assertEqual(y, yt)
        self.assertEqual(x & 1, sign_x)

        key = ECC.construct(point_x=0, point_y=1, curve="Ed25519")
        out = key._export_eddsa()
        self.assertEqual(b'\x01' + b'\x00' * 31, out)


class TestExport_Ed448(unittest.TestCase):

    def test_raw(self):
        key = ECC.generate(curve="Ed448")
        x, y = key.pointQ.xy
        raw = bytearray(key._export_eddsa())
        sign_x = raw[56] >> 7
        raw[56] &= 0x7F
        yt = bytes_to_long(raw[::-1])
        self.assertEqual(y, yt)
        self.assertEqual(x & 1, sign_x)

        key = ECC.construct(point_x=0, point_y=1, curve="Ed448")
        out = key._export_eddsa()
        self.assertEqual(b'\x01' + b'\x00' * 56, out)


class TestImport_Ed25519(unittest.TestCase):

    def test_raw(self):
        Px = 24407857220263921307776619664228778204996144802740950419837658238229122415920
        Py = 56480760040633817885061096979765646085062883740629155052073094891081309750690
        encoded = b'\xa2\x05\xd6\x00\xe1 \xe1\xc0\xff\x96\xee?V\x8e\xba/\xd3\x89\x06\xd7\xc4c\xe8$\xc2d\xd7a1\xfa\xde|'
        key = eddsa.import_public_key(encoded)
        self.assertEqual(Py, key.pointQ.y)
        self.assertEqual(Px, key.pointQ.x)

        encoded = b'\x01' + b'\x00' * 31
        key = eddsa.import_public_key(encoded)
        self.assertEqual(1, key.pointQ.y)
        self.assertEqual(0, key.pointQ.x)


class TestImport_Ed448(unittest.TestCase):

    def test_raw(self):
        Px = 0x153f42025aba3b0daecaa5cd79458b3146c7c9378c16c17b4a59bc3561113d90c169045bc12966c3f93e140c2ca0a3acc33d9205b9daf9b1
        Py = 0x38f5c0015d3dedd576c232810dd90373b5b1d631a12894c043b7be529cbae03ede177d8fa490b56131dbcb2465d2aba777ef839fc1719b25
        encoded = unhexlify("259b71c19f83ef77a7abd26524cbdb31"
                            "61b590a48f7d17de3ee0ba9c52beb743"
                            "c09428a131d6b1b57303d90d8132c276"
                            "d5ed3d5d01c0f53880")
        key = eddsa.import_public_key(encoded)
        self.assertEqual(Py, key.pointQ.y)
        self.assertEqual(Px, key.pointQ.x)

        encoded = b'\x01' + b'\x00' * 56
        key = eddsa.import_public_key(encoded)
        self.assertEqual(1, key.pointQ.y)
        self.assertEqual(0, key.pointQ.x)


class TestVectorsEdDSAWycheproof(unittest.TestCase):

    def add_tests(self, filename):

        def pk(group):
            elem = group['key']['pk']
            return unhexlify(elem)

        def sk(group):
            elem = group['key']['sk']
            return unhexlify(elem)

        result = load_test_vectors_wycheproof(("Signature", "wycheproof"),
                                              filename,
                                              "Wycheproof ECDSA signature (%s)"
                                              % filename,
                                              group_tag={'pk': pk, 'sk': sk})
        self.tv += result

    def setUp(self):
        self.tv = []
        self.add_tests("eddsa_test.json")
        self.add_tests("ed448_test.json")

    def test_sign(self, tv):
        if not tv.valid:
            return

        self._id = "Wycheproof EdDSA Sign Test #%d (%s, %s)" % (tv.id, tv.comment, tv.filename)
        key = eddsa.import_private_key(tv.sk)
        signer = eddsa.new(key, 'rfc8032')
        signature = signer.sign(tv.msg)
        self.assertEqual(signature, tv.sig)

    def test_verify(self, tv):
        self._id = "Wycheproof EdDSA Verify Test #%d (%s, %s)" % (tv.id, tv.comment, tv.filename)
        key = eddsa.import_public_key(tv.pk)
        verifier = eddsa.new(key, 'rfc8032')
        try:
            verifier.verify(tv.msg, tv.sig)
        except ValueError:
            assert not tv.valid
        else:
            assert tv.valid

    def runTest(self):
        for tv in self.tv:
            self.test_sign(tv)
            self.test_verify(tv)


def get_tests(config={}):

    tests = []
    tests += list_test_cases(TestExport_Ed25519)
    tests += list_test_cases(TestExport_Ed448)
    tests += list_test_cases(TestImport_Ed25519)
    tests += list_test_cases(TestImport_Ed448)
    tests += list_test_cases(TestEdDSA)
    tests += [TestVectorsEdDSAWycheproof()]
    return tests


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