constantine/tests/test_precomputed.nim
Mamy Ratsimbazafy d376f08d1b
G2 / Operations on the twisted curve E'(Fp2) (#51)
* Split elliptic curve tests to better use parallel testing

* Add support for printing points on G2

* Implement multiplication and division by optimal sextic non-residue (BLS12-381)

* Implement modular square root in 𝔽p2

* Support EC add and EC double on G2 (for BLS12-381)

* Support G2 divisive twists with non-unit sextic-non-residue like BN254 snarks

* Add EC G2 bench

* cleanup some unused warnings

* Reorg the tests for parallelization and to avoid instantiating huge files
2020-06-15 22:58:56 +02:00

41 lines
1.5 KiB
Nim

# 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 std/unittest,
../constantine/config/common,
../constantine/arithmetic,
../constantine/config/curves,
../constantine/io/[io_bigints, io_fields]
echo "\n------------------------------------------------------\n"
proc checkCubeRootOfUnity(curve: static Curve) =
test $curve & " cube root of unity (mod p)":
var cru = curve.getCubicRootOfUnity_mod_p()
cru.square()
cru *= curve.getCubicRootOfUnity_mod_p()
check: bool cru.isOne()
test $curve & " cube root of unity (mod r)":
var cru: BigInt[3 * curve.getCurveOrderBitwidth()]
cru.prod(curve.getCubicRootOfUnity_mod_r(), curve.getCubicRootOfUnity_mod_r())
cru.prod(cru, curve.getCubicRootOfUnity_mod_r())
var r: BigInt[curve.getCurveOrderBitwidth()]
r.reduce(cru, curve.getCurveOrder)
check: bool r.isOne()
proc main() =
suite "Sanity checks on precomputed values" & " [" & $WordBitwidth & "-bit mode]":
checkCubeRootOfUnity(BN254_Snarks)
# checkCubeRootOfUnity(BLS12_381)
main()