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https://github.com/codex-storage/constantine.git
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d41c653c8a
* Implement double-width field multiplication for double-width towering * Fp2 mul acceleration via double-width lazy reduction (pure Nim) * Inline assembly for basic add and sub * Use 2 registers instead of 12+ for ASM conditional copy * Prepare assembly for extended multiprecision multiplication support * Add assembly for mul * initial implementation of assembly reduction * stash current progress of assembly reduction * Fix clobbering issue, only P256 comparison remain buggy * Fix asm montgomery reduction for NIST P256 as well * MULX/ADCX/ADOX multi-precision multiplication * MULX/ADCX/ADOX reduction v1 * Add (deactivated) assembly for double-width substraction + rework benches * Add bench to nimble and deactivate double-width for now. slower than classic * Fix x86-32 running out of registers for mul * Clang needs to be at v9 to support flag output constraints (Xcode 11.4.2 / OSX Catalina) * 32-bit doesn't have enough registers for ASM mul * Fix again Travis Clang 9 issues * LLVM 9 is not whitelisted in travis * deactivated assembler with travis clang * syntax error * another * ... * missing space, yeah ...
98 lines
2.8 KiB
Nim
98 lines
2.8 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/[unittest, times],
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# Internal
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../constantine/arithmetic,
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../constantine/io/[io_bigints, io_fields],
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../constantine/config/[curves, common, type_bigint],
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# Test utilities
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../helpers/prng_unsafe
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const Iters = 128
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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_finite_fields_double_width xoshiro512** seed: ", seed
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proc randomCurve(C: static Curve) =
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let a = rng.random_unsafe(Fp[C])
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let b = rng.random_unsafe(Fp[C])
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var r_fp, r_fpDbl: Fp[C]
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var tmpDbl: FpDbl[C]
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r_fp.prod(a, b)
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tmpDbl.mulNoReduce(a, b)
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r_fpDbl.reduce(tmpDbl)
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doAssert bool(r_fp == r_fpDbl)
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proc randomHighHammingWeight(C: static Curve) =
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let a = rng.random_highHammingWeight(Fp[C])
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let b = rng.random_highHammingWeight(Fp[C])
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var r_fp, r_fpDbl: Fp[C]
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var tmpDbl: FpDbl[C]
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r_fp.prod(a, b)
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tmpDbl.mulNoReduce(a, b)
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r_fpDbl.reduce(tmpDbl)
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doAssert bool(r_fp == r_fpDbl)
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proc random_long01Seq(C: static Curve) =
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let a = rng.random_long01Seq(Fp[C])
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let b = rng.random_long01Seq(Fp[C])
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var r_fp, r_fpDbl: Fp[C]
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var tmpDbl: FpDbl[C]
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r_fp.prod(a, b)
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tmpDbl.mulNoReduce(a, b)
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r_fpDbl.reduce(tmpDbl)
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doAssert bool(r_fp == r_fpDbl)
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suite "Field Multiplication via double-width field elements is consistent with single-width." & " [" & $WordBitwidth & "-bit mode]":
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test "With P-224 field modulus":
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for _ in 0 ..< Iters:
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randomCurve(P224)
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for _ in 0 ..< Iters:
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randomHighHammingWeight(P224)
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for _ in 0 ..< Iters:
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random_long01Seq(P224)
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test "With P-256 field modulus":
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for _ in 0 ..< Iters:
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randomCurve(P256)
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for _ in 0 ..< Iters:
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randomHighHammingWeight(P256)
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for _ in 0 ..< Iters:
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random_long01Seq(P256)
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test "With BN254_Snarks field modulus":
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for _ in 0 ..< Iters:
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randomCurve(BN254_Snarks)
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for _ in 0 ..< Iters:
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randomHighHammingWeight(BN254_Snarks)
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for _ in 0 ..< Iters:
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random_long01Seq(BN254_Snarks)
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test "With BLS12_381 field modulus":
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for _ in 0 ..< Iters:
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randomCurve(BLS12_381)
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for _ in 0 ..< Iters:
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randomHighHammingWeight(BLS12_381)
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for _ in 0 ..< Iters:
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random_long01Seq(BLS12_381)
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