mirage-crypto-ec: add Brainpool curves with 254/384/512 bits #260
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This change modularizes the point representation in preparation for the SECP256K1 implementation, which is based on ECCKiila and uses a different point representation.
This change implements the SECP256K1 curve (also known as the Bitcoin curve). - field primitives are generated by the fiat-crypto project[1] - point primitives are generated by the ECCKiila project[2] - Ocaml point operations are taken from NIST implementation, adapted to ECCKiila point primitives and optimized for a=0. - testvectors for ECDH and ECDSA verification from wycheproof[3] Closes: mirage#187 [1] https://github.com/mit-plv/fiat-crypto [2] https://gitlab.com/nisec/ecckiila [3] https://github.com/C2SP/wycheproof
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Setting to "ready for review" although some CI tests are failing. Not sure why. Any clue how this can happen, but only for 4.14.2 on ubuntu and windows? Is there maybe a cache issue (because the file was indeed missing before)? |
This change adds the Brainpool curves, namely brainpoolP254r1, brainpoolP384r1, brainpoolP512r1. The implementation internally uses the twisted versions of the curves (...t1) in order to use the same a=-3 EC arithmetic as the NIST curves. Point coordinates in regular form are transformed to twisted form before calculations, and vice versa afterwards.
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This change adds the Brainpool curves, namely brainpoolP254r1,
brainpoolP384r1, brainpoolP512r1. The implementation internally uses the
twisted versions of the curves (...t1) in order to use the same a=-3 EC
arithmetic as the NIST curves. Point coordinates in regular form are
transformed to twisted form before calculations, and vice versa afterwards.
Based on: #259, merge that first