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* split modular inversion in its own file * Stash fast GCD inversion https://eprint.iacr.org/2020/972.pdf * Stash Pornin's bingcd -> issue with inner modular reduction * Implement Bernstein-Yang inversion * Avoid Nim checks on signed integers (32-bit runtime issue) * cleanup: remove old inversion impls * cleanup: static moduli, move div2 * small comments (skip ci) * comment cleanup (skip ci) * fix total iterations on 32-bit * Add batch conversion to affine coordinates using simultaneous inversion trick * fix conditional setZero and batchAffine conversion * cleanup unneeded branches following affine conversion unification * Fix batchAffine with zero inputs and add fuzz failure to test suite
17 lines
693 B
Nim
17 lines
693 B
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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../config/curves,
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../io/io_fields
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# Curve precomputed parameters
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# -----------------------------------------------------------------
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const BW6_761_coefB_G2* = Fp[BW6_761].fromHex(
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"0x4")
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