Commit Graph

5 Commits

Author SHA1 Message Date
Mamy Ratsimbazafy d84edcd217
Naive pairings + Naive cofactor clearing (#82)
* Pairing - initial commit
- line functions
- sparse Fp12 functions

* Small fixes:
- Line parametrized by twist for generic algorithm
- Add a conjugate operator for quadratic extensions
- Have frobenius use it
- Create an Affine coordinate type for elliptic curve

* Implement (failing) pairing test

* Stash pairing debug session, temp switch Fp12 over Fp4

* Proper naive pairing on BLS12-381

* Frobenius map

* Implement naive pairing for BN curves

* Add pairing tests to CI + reduce time spent on lower-level tests

* Test without assembler in Github Actions + less base layers test iterations
2020-09-21 23:24:00 +02:00
Mamy Ratsimbazafy 85d365359d
Endomorphism G2 (#79)
* Clear cofactor in BN254 G2 testgen and frobenius

* Implement G2 endomorphism acceleration in Sage

* Somewhat working accelerated scalar mul G2 (2.2x) faster
- OK for BN254_Snarks
- Some test failing for BLS12-381

* Fix negative miniscalars by adding an extra bit of encoding

* Cleanup accel params

* Small recoding optimizations
2020-09-03 23:10:48 +02:00
Mamy Ratsimbazafy 4a308c2148
Frobenius endomorphism ψ = φ−1 πp φ (psi = untwist-Frobenius-Twist) (#78)
* Sage script for frobenius isogeny

* Implement ψ (Psi) - Untwist-Frobenius-Twist Endomorphism on G2

* Implement sparse mul for frpbenius endomorphism

* Implement optimized psi2
2020-08-31 23:18:48 +02:00
Mamy Ratsimbazafy e491f3b91d
[WIP] Skewed RNGs that trigger corner cases (#59)
* Add a RNG skewed to high hamming weights

* Add libsecp256k1 skewed RNG that found a CVE in OpenSSL

* Add initial skewed RNGs tests to finite fields

* Add Fp towers skewed tests

* Add ellptic curve skewed tests
2020-06-20 18:55:27 +02:00
Mamy André-Ratsimbazafy 43abf9dfc4
SHorter test names for github display 2020-06-15 23:15:01 +02:00