115 lines
4.1 KiB
Nim
115 lines
4.1 KiB
Nim
# Constantine
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# Copyright (c) 2018-2019 Status Research & Development GmbH
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# Copyright (c) 2020-Present Mamy André-Ratsimbazafy
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at http://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at http://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import
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# Standard library
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std/[tables, unittest, times],
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# Internals
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../constantine/config/common,
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../constantine/[arithmetic, primitives],
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../constantine/towers,
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../constantine/config/curves,
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../constantine/io/io_towers,
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../constantine/elliptic/[
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ec_shortweierstrass_affine,
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ec_shortweierstrass_projective,
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ec_scalar_mul],
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../constantine/pairing/lines_projective,
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# Test utilities
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../helpers/[prng_unsafe, static_for]
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const
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Iters = 4
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TestCurves = [
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BLS12_381
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]
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type
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RandomGen = enum
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Uniform
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HighHammingWeight
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Long01Sequence
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var rng: RngState
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let seed = uint32(getTime().toUnix() and (1'i64 shl 32 - 1)) # unixTime mod 2^32
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rng.seed(seed)
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echo "\n------------------------------------------------------\n"
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echo "test_pairing_bls12_381_line_functions xoshiro512** seed: ", seed
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func random_point*(rng: var RngState, EC: typedesc, gen: RandomGen): EC {.noInit.} =
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if gen == Uniform:
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result = rng.random_unsafe(EC)
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elif gen == HighHammingWeight:
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result = rng.random_highHammingWeight(EC)
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else:
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result = rng.random_long01Seq(EC)
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func random_point*(rng: var RngState, EC: typedesc, randZ: bool, gen: RandomGen): EC {.noInit.} =
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if not randZ:
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if gen == Uniform:
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result = rng.random_unsafe(EC)
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elif gen == HighHammingWeight:
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result = rng.random_highHammingWeight(EC)
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else:
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result = rng.random_long01Seq(EC)
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else:
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if gen == Uniform:
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result = rng.random_unsafe_with_randZ(EC)
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elif gen == HighHammingWeight:
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result = rng.random_highHammingWeight_with_randZ(EC)
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else:
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result = rng.random_long01Seq_with_randZ(EC)
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suite "Pairing - Line Functions on BLS12-381" & " [" & $WordBitwidth & "-bit mode]":
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test "Line double - lt,t(P)":
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proc test_line_double(C: static Curve, randZ: bool, gen: RandomGen) =
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for _ in 0 ..< Iters:
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let P = rng.random_point(ECP_ShortW_Aff[Fp[C], NotOnTwist], gen)
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var T = rng.random_point(ECP_ShortW_Proj[Fp2[C], OnTwist], randZ, gen)
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let Q = rng.random_point(ECP_ShortW_Proj[Fp2[C], OnTwist], randZ, gen)
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var l: Line[Fp2[C]]
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var T2: typeof(Q)
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T2.double(T)
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l.line_double(T, P)
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doAssert: bool(T == T2)
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staticFor(curve, TestCurves):
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test_line_double(curve, randZ = false, gen = Uniform)
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test_line_double(curve, randZ = true, gen = Uniform)
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test_line_double(curve, randZ = false, gen = HighHammingWeight)
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test_line_double(curve, randZ = true, gen = HighHammingWeight)
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test_line_double(curve, randZ = false, gen = Long01Sequence)
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test_line_double(curve, randZ = true, gen = Long01Sequence)
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test "Line add - lt,q(P)":
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proc test_line_add(C: static Curve, randZ: bool, gen: RandomGen) =
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for _ in 0 ..< Iters:
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let P = rng.random_point(ECP_ShortW_Aff[Fp[C], NotOnTwist], gen)
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let Q = rng.random_point(ECP_ShortW_Proj[Fp2[C], OnTwist], randZ, gen)
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var T = rng.random_point(ECP_ShortW_Proj[Fp2[C], OnTwist], randZ, gen)
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var l: Line[Fp2[C]]
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var TQ{.noInit.}: typeof(T)
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TQ.sum(T, Q)
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var Qaff{.noInit.}: ECP_ShortW_Aff[Fp2[C], OnTwist]
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Qaff.affineFromProjective(Q)
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l.line_add(T, Qaff, P)
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doAssert: bool(T == TQ)
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staticFor(curve, TestCurves):
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test_line_add(curve, randZ = false, gen = Uniform)
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test_line_add(curve, randZ = true, gen = Uniform)
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test_line_add(curve, randZ = false, gen = HighHammingWeight)
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test_line_add(curve, randZ = true, gen = HighHammingWeight)
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test_line_add(curve, randZ = false, gen = Long01Sequence)
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test_line_add(curve, randZ = true, gen = Long01Sequence)
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