constantine/tests/t_pairing_bls12_381_line_fu...

115 lines
4.1 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
# Standard library
std/[tables, unittest, times],
# Internals
../constantine/config/common,
../constantine/[arithmetic, primitives],
../constantine/towers,
../constantine/config/curves,
../constantine/io/io_towers,
../constantine/elliptic/[
ec_shortweierstrass_affine,
ec_shortweierstrass_projective,
ec_scalar_mul],
../constantine/pairing/lines_projective,
# Test utilities
../helpers/[prng_unsafe, static_for]
const
Iters = 4
TestCurves = [
BLS12_381
]
type
RandomGen = enum
Uniform
HighHammingWeight
Long01Sequence
var rng: RngState
let seed = uint32(getTime().toUnix() and (1'i64 shl 32 - 1)) # unixTime mod 2^32
rng.seed(seed)
echo "\n------------------------------------------------------\n"
echo "test_pairing_bls12_381_line_functions xoshiro512** seed: ", seed
func random_point*(rng: var RngState, EC: typedesc, gen: RandomGen): EC {.noInit.} =
if gen == Uniform:
result = rng.random_unsafe(EC)
elif gen == HighHammingWeight:
result = rng.random_highHammingWeight(EC)
else:
result = rng.random_long01Seq(EC)
func random_point*(rng: var RngState, EC: typedesc, randZ: bool, gen: RandomGen): EC {.noInit.} =
if not randZ:
if gen == Uniform:
result = rng.random_unsafe(EC)
elif gen == HighHammingWeight:
result = rng.random_highHammingWeight(EC)
else:
result = rng.random_long01Seq(EC)
else:
if gen == Uniform:
result = rng.random_unsafe_with_randZ(EC)
elif gen == HighHammingWeight:
result = rng.random_highHammingWeight_with_randZ(EC)
else:
result = rng.random_long01Seq_with_randZ(EC)
suite "Pairing - Line Functions on BLS12-381" & " [" & $WordBitwidth & "-bit mode]":
test "Line double - lt,t(P)":
proc test_line_double(C: static Curve, randZ: bool, gen: RandomGen) =
for _ in 0 ..< Iters:
let P = rng.random_point(ECP_ShortW_Aff[Fp[C], NotOnTwist], gen)
var T = rng.random_point(ECP_ShortW_Proj[Fp2[C], OnTwist], randZ, gen)
let Q = rng.random_point(ECP_ShortW_Proj[Fp2[C], OnTwist], randZ, gen)
var l: Line[Fp2[C]]
var T2: typeof(Q)
T2.double(T)
l.line_double(T, P)
doAssert: bool(T == T2)
staticFor(curve, TestCurves):
test_line_double(curve, randZ = false, gen = Uniform)
test_line_double(curve, randZ = true, gen = Uniform)
test_line_double(curve, randZ = false, gen = HighHammingWeight)
test_line_double(curve, randZ = true, gen = HighHammingWeight)
test_line_double(curve, randZ = false, gen = Long01Sequence)
test_line_double(curve, randZ = true, gen = Long01Sequence)
test "Line add - lt,q(P)":
proc test_line_add(C: static Curve, randZ: bool, gen: RandomGen) =
for _ in 0 ..< Iters:
let P = rng.random_point(ECP_ShortW_Aff[Fp[C], NotOnTwist], gen)
let Q = rng.random_point(ECP_ShortW_Proj[Fp2[C], OnTwist], randZ, gen)
var T = rng.random_point(ECP_ShortW_Proj[Fp2[C], OnTwist], randZ, gen)
var l: Line[Fp2[C]]
var TQ{.noInit.}: typeof(T)
TQ.sum(T, Q)
var Qaff{.noInit.}: ECP_ShortW_Aff[Fp2[C], OnTwist]
Qaff.affineFromProjective(Q)
l.line_add(T, Qaff, P)
doAssert: bool(T == TQ)
staticFor(curve, TestCurves):
test_line_add(curve, randZ = false, gen = Uniform)
test_line_add(curve, randZ = true, gen = Uniform)
test_line_add(curve, randZ = false, gen = HighHammingWeight)
test_line_add(curve, randZ = true, gen = HighHammingWeight)
test_line_add(curve, randZ = false, gen = Long01Sequence)
test_line_add(curve, randZ = true, gen = Long01Sequence)