| 1 | ### -*-python-*- |
| 2 | ### |
| 3 | ### Testing random-generator functionality |
| 4 | ### |
| 5 | ### (c) 2019 Straylight/Edgeware |
| 6 | ### |
| 7 | |
| 8 | ###----- Licensing notice --------------------------------------------------- |
| 9 | ### |
| 10 | ### This file is part of the Python interface to Catacomb. |
| 11 | ### |
| 12 | ### Catacomb/Python is free software: you can redistribute it and/or |
| 13 | ### modify it under the terms of the GNU General Public License as |
| 14 | ### published by the Free Software Foundation; either version 2 of the |
| 15 | ### License, or (at your option) any later version. |
| 16 | ### |
| 17 | ### Catacomb/Python is distributed in the hope that it will be useful, but |
| 18 | ### WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 20 | ### General Public License for more details. |
| 21 | ### |
| 22 | ### You should have received a copy of the GNU General Public License |
| 23 | ### along with Catacomb/Python. If not, write to the Free Software |
| 24 | ### Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| 25 | ### USA. |
| 26 | |
| 27 | ###-------------------------------------------------------------------------- |
| 28 | ### Imported modules. |
| 29 | |
| 30 | import catacomb as C |
| 31 | import unittest as U |
| 32 | import testutils as T |
| 33 | |
| 34 | ###-------------------------------------------------------------------------- |
| 35 | class TestRandomGenerator (U.TestCase): |
| 36 | |
| 37 | def check_rand(me, rng): |
| 38 | |
| 39 | for i in T.range(50): |
| 40 | x = rng.byte() |
| 41 | me.assertEqual(type(x), int) |
| 42 | me.assertTrue(0 <= x < 256) |
| 43 | |
| 44 | x = rng.word() |
| 45 | me.assertTrue(0 <= x <= 0xffffffff) |
| 46 | |
| 47 | for i in T.range(50): |
| 48 | x = rng.range(10) |
| 49 | me.assertEqual(type(x), int) |
| 50 | me.assertTrue(0 <= x < 10) |
| 51 | x = rng.range(T.MAXFIXNUM + 1) |
| 52 | me.assertEqual(type(x), C.MP) |
| 53 | |
| 54 | for i in T.range(50): |
| 55 | x = rng.mp(123, 7) |
| 56 | me.assertEqual(type(x), C.MP) |
| 57 | me.assertEqual(x.nbits, 123) |
| 58 | me.assertEqual(x&7, 7) |
| 59 | me.assertRaises((OverflowError, ValueError), rng.mp, 128, -1) |
| 60 | me.assertRaises((OverflowError, ValueError), rng.mp, 128, C.MPW_MAX + 1) |
| 61 | |
| 62 | x = rng.block(17) |
| 63 | me.assertEqual(type(x), C.ByteString) |
| 64 | me.assertEqual(len(x), 17) |
| 65 | |
| 66 | def test_lcrand(me): |
| 67 | rng = C.LCRand(0) |
| 68 | me.assertFalse(rng.cryptop) |
| 69 | w0 = rng.word() |
| 70 | rng.seedint(0) |
| 71 | me.assertEqual(rng.word(), w0) |
| 72 | |
| 73 | def test_firand(me): |
| 74 | rng = C.FibRand(0) |
| 75 | me.assertFalse(rng.cryptop) |
| 76 | w0 = rng.word() |
| 77 | rng.seedint(0) |
| 78 | me.assertEqual(rng.word(), w0) |
| 79 | |
| 80 | def test_truerand(me): |
| 81 | rng = C.TrueRand() |
| 82 | me.assertTrue(rng.cryptop) |
| 83 | me.check_rand(rng) |
| 84 | rng.key(T.span(23)) |
| 85 | rng.seed(256) |
| 86 | me.assertRaises(ValueError, rng.seed, C.RAND_IBITS + 1) |
| 87 | rng.seedint(-314) |
| 88 | rng.seedword(0x12345678) |
| 89 | rng.seedrand(T.detrand("seed-truerand")) |
| 90 | rng.seedblock(T.span(123)) |
| 91 | rng.add(T.span(123), 978) |
| 92 | rng.gate() |
| 93 | rng.stretch() |
| 94 | rng.timer() |
| 95 | me.check_rand(rng) |
| 96 | |
| 97 | def test_cryptorand(me): |
| 98 | for r, kw in [("rijndael-counter", {}), |
| 99 | ("rc4", {}), |
| 100 | ("xchacha20", { "nonce": T.span(24) }), |
| 101 | ("seal", { "i": 12345678 }), |
| 102 | ("shake128", { "func": T.bin("TEST"), |
| 103 | "perso": T.bin("Catacomb/Python test") }), |
| 104 | ("kmac256", { "perso": T.bin("Catacomb/Python test") })]: |
| 105 | rcls = C.gccrands[r] |
| 106 | rng = rcls(T.span(rcls.keysz.default), **kw) |
| 107 | me.assertTrue(rng.cryptop) |
| 108 | |
| 109 | def test_sslrand(me): |
| 110 | rng = C.SSLRand(T.span(16), T.span(32), C.md5, C.sha) |
| 111 | me.check_rand(rng) |
| 112 | def test_tlsdx(me): |
| 113 | rng = C.TLSDataExpansion(T.span(16), T.span(32), C.sha256_hmac) |
| 114 | me.check_rand(rng) |
| 115 | def test_tlsprf(me): |
| 116 | rng = C.TLSPRF(T.span(16), T.span(32), C.md5_hmac, C.sha_hmac) |
| 117 | me.check_rand(rng) |
| 118 | |
| 119 | def test_dsarand(me): |
| 120 | seed = T.span(16) |
| 121 | n = C.MP.loadb(seed) |
| 122 | rng = C.DSARand(seed) |
| 123 | me.check_rand(rng) |
| 124 | me.assertEqual(rng.seed, (n + 153 + 3).storeb(16)) |
| 125 | |
| 126 | def test_bbs(me): |
| 127 | ev = T.EventRecorder() |
| 128 | drng = T.detrand("bbs") |
| 129 | rngpriv = C.BBSPriv.generate(1536, event = ev, rng = drng) |
| 130 | me.assertEqual(rngpriv.n.nbits, 1536) |
| 131 | me.assertEqual(rngpriv.p&3, 3) |
| 132 | me.assertEqual(rngpriv.q&3, 3) |
| 133 | me.assertTrue(rngpriv.p.primep()) |
| 134 | me.assertTrue(rngpriv.q.primep()) |
| 135 | me.assertEqual(rngpriv.n, rngpriv.p*rngpriv.q) |
| 136 | me.assertEqual(ev.events, |
| 137 | "[p [s]:F10/P7/D]" |
| 138 | "[p [t]:F2/P7/D]" |
| 139 | "[p [r]:F7/P7/D]" |
| 140 | "[p:F6/P3/D]" |
| 141 | "[q [s]:P7/D]" |
| 142 | "[q [t]:F33/P7/D]" |
| 143 | "[q [r]:F33/P7/D]" |
| 144 | "[q:F55/P3/D]") |
| 145 | |
| 146 | x0 = drng.range(rngpriv.n) |
| 147 | rngpriv.seedmp(x0) |
| 148 | rng = C.BlumBlumShub(rngpriv.n, x0) |
| 149 | me.check_rand(rngpriv) |
| 150 | me.check_rand(rng) |
| 151 | me.assertEqual(rngpriv.x, rng.x) |
| 152 | |
| 153 | msg = T.span(123) |
| 154 | rng.wrap() |
| 155 | ct = rng.mask(msg) |
| 156 | rng.wrap() |
| 157 | |
| 158 | rngpriv.x = rng.x |
| 159 | nsteps = (123*8 + 7)//(rng.stepsz) |
| 160 | rngpriv.rew(nsteps + 1) |
| 161 | me.assertEqual(rngpriv.mask(ct), msg) |
| 162 | |
| 163 | ###----- That's all, folks -------------------------------------------------- |
| 164 | |
| 165 | if __name__ == "__main__": U.main() |