constantine/tests/math/t_fp4.nim

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# Constantine
# Copyright (c) 2018-2019 Status Research & Development GmbH
# Copyright (c) 2020-Present Mamy André-Ratsimbazafy
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at http://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at http://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
import
# Internals
../../constantine/math/io/io_extfields,
../../constantine/math/config/curves,
# Test utilities
./t_fp_tower_template
const TestCurves = [
BN254_Nogami,
BN254_Snarks,
BLS12_377,
BLS12_381,
BW6_761
]
runTowerTests(
ExtDegree = 4,
Iters = 12,
TestCurves = TestCurves,
moduleName = "test_fp4",
testSuiteDesc = "𝔽p4 = 𝔽p2[v]"
)
# Fuzzing failure
# Issue when using Fp4Dbl
suite "𝔽p4 - Anti-regression":
test "Partial reduction (off by p) on double-precision field":
proc partred1() =
type F = Fp4[BN254_Snarks]
var x: F
x.fromHex(
"0x0000000000000000000fffffffffffffffffe000000fffffffffcffffff80000",
"0x000000000000007ffffffffff800000001fffe000000000007ffffffffffffe0",
"0x000000c0ff0300fcffffffff7f00000000f0ffffffffffffffff00000000e0ff",
"0x0e0a77c19a07df27e5eea36f7879462c0a7ceb28e5c70b3dd35d438dc58f4d9c"
)
# echo "x: ", x.toHex()
# echo "\n----------------------"
var s: F
s.square(x)
# echo "s: ", s.toHex()
# echo "\ns raw: ", s
# echo "\n----------------------"
var p: F
p.prod(x, x)
# echo "p: ", p.toHex()
# echo "\np raw: ", p
check: bool(p == s)
partred1()
proc partred2() =
type F = Fp4[BN254_Snarks]
var x: F
x.fromHex(
"0x0660df54c75b67a0c32fc6208f08b13d8cc86cd93084180725a04884e7f45849",
"0x094185b0915ce1aa3bd3c63d33fd6d9cf3f04ea30fc88efe1e6e9b59117513bb",
"0x26c20beee711e46406372ab4f0e6d0069c67ded0a494bc0301bbfde48f7a4073",
"0x23c60254946def07120e46155466cc9b883b5c3d1c17d1d6516a6268a41dcc5d"
)
# echo "x: ", x.toHex()
# echo "\n----------------------"
var s: F
s.square(x)
# echo "s: ", s.toHex()
# echo "\ns raw: ", s
# echo "\n----------------------"
var p: F
p.prod(x, x)
# echo "p: ", p.toHex()
# echo "\np raw: ", p
check: bool(p == s)
partred2()
proc partred3() =
type F = Fp4[BN254_Snarks]
var x: F
x.fromHex(
"0x233066f735efcf7a0ad6e3ffa3afe4ed39bdfeffffb3f7d8b1fd7eeabfddfb36",
"0x1caba0b27fdfdfd512bdecf3fffbfebdb939fffffffbff8a14e663f7fef7fc85",
"0x212a64f0efefff1b7abe2ebe2bffbfc1b9335fb73ffd7c8815ffffffffffff8d",
"0x212ba4b1ff8feff552a61efff5ffffc5b839f7ffffffff71f477dffe7ffc7e08"
)
# echo "x: ", x.toHex()
# echo "\n----------------------"
var s: F
s.square(x)
# echo "s: ", s.toHex()
# echo "\ns raw: ", s
# echo "\n----------------------"
var n, s2: F
n.neg(x)
s2.prod(n, n)
# echo "s2: ", s2.toHex()
# echo "\ns2 raw: ", s2
check: bool(s == s2)
partred3()