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https://github.com/codex-storage/constantine.git
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986245b5c1
* Add projective-> affine bench * Add conditional copy and div2 benches * Fp4 benchmarks * Constant-time Jacobian addition * Jacobian doubling * Use a simpler Add+Dbl complete formula * Update tests * Fix conditional negate * Rollaback complete addition, we were only handling curve coef a == 0
35 lines
1.3 KiB
Nim
35 lines
1.3 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 std/unittest,
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../constantine/arithmetic,
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../constantine/io/io_fields,
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../constantine/config/[common, curves]
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echo "\n------------------------------------------------------\n"
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proc main() =
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suite "Finite field conditional arithmetic":
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test "Conditional substraction borrow bug":
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let a = FP[BN254_Snarks].fromHex"0x14ae3e4392eb3238968c7624ee3d041590392e289e4f0bdfac4b6e56ac8cf768"
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let b = FP[BN254_Snarks].fromHex"0x24e810017b4c0630a0b35b5c63a377097533928b31fa95d58d0e08d1f98b16c6"
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let expected = FP[BN254_Snarks].fromHex"0x202a7cb4f8d0cc31ae29607f0c1ae569b287062ed4c640975b5df19b8b7edde9"
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var normalsub: Fp[BN254_Snarks]
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normalsub.diff(a, b)
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var condsub = a
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condsub.csub(b, CtTrue)
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check:
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bool(normalsub == expected)
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bool(condsub == expected)
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main()
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