Commit Graph

410 Commits

Author SHA1 Message Date
Csaba Kiraly 21f880dde9
adding BN254 Snarks generators (#193)
adding generator values based on
https://github.com/ethereum/EIPs/blob/master/EIPS/eip-197.md

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
2022-05-06 11:42:06 +02:00
Mamy Ratsimbazafy f678815563
Polish (#192)
* cyclotomic subgroup - 0 is not in the cyclotomic subgroup

* [doc] division is now constant-time

* Mention the newly added Pasta Curves / Halo 2 in README [skip ci]
2022-04-27 14:59:14 +02:00
Mamy Ratsimbazafy 39a8a413de
Pasta curves (#191)
* Pasta curves field arithmetic

* implement elliptic curve arith for the Pasta curves
2022-04-27 00:58:48 +02:00
Mamy Ratsimbazafy e9e7a1809c
BN254 - Hash-to-Curve (SVDW method) (#190)
* Hash to BN254-Snarks

* Test SVDW code path with old v7 vectors for BLS12-381

* add benches
2022-04-26 21:24:07 +02:00
Mamy Ratsimbazafy 062ae56867
Try to use hash-to-curve for BN254_Snarks but no low-degree isogeny [skip ci] 2022-04-12 23:40:07 +02:00
Mamy Ratsimbazafy 65eedd1cf7
Hash-to-Curve BLS12-381 G1 (#189)
* Skeleton of hash to curve for BLS12-381 G1

* Remove isodegree parameter

* Fix polynomial evaluation of hashToG1

* Optimize hash_to_curve and add bench for hash to G1

* slight optim of jacobian isomap + v7 test vectors
2022-04-11 00:57:16 +02:00
Mamy Ratsimbazafy bde4f97b56
Line refactor (#188)
* Align line evaluations to papers notations

* Adjust line fusion op

* precompute G2 b' for costly D-Twists
2022-04-04 10:10:36 +02:00
Mamy Ratsimbazafy 742cecce08
Poly1305 Message Authentication Code (#186)
* Groundwork for Poly1305 MAC

* Implement fast reduction for Poly1305

* don't import assembly files when compiling without assembly
2022-03-05 23:39:24 +01:00
Mamy Ratsimbazafy c2eb42b769
Add ChaCha20 stream cipher 2022-03-02 01:18:47 +01:00
Mamy Ratsimbazafy 597dcb39aa
typo 2022-02-28 14:04:22 +01:00
Mamy Ratsimbazafy 26954f905a
Constant time (#185)
* Implement fully constant-time division closes #2 closes #9

* constant-time hex parsing

* prevent cache timing attacks in toHex() conversion (which is only for test/debug purposes anyway)
2022-02-28 09:23:26 +01:00
Mamy Ratsimbazafy ffacf61e8a
Don't dump all in "backend" (#184)
* backend -> math

* towers -> extension fields

* move ISA and compiler specific code out of math/

* fix export
2022-02-27 01:49:08 +01:00
Mamy Ratsimbazafy 5bc6d1d426
BLS signatures for Ethereum (BLS sig on BLS12-381 G2 with SHA256) (#183)
* Finally add the (Ethereum) bls signatures (on BLS12-381 G2)

* fix test path and remove old low-level signature test
2022-02-26 21:22:34 +01:00
Mamy Ratsimbazafy fe500a6a79
Productionize: move protocols top-level vs backend (#179)
* Productionize: move protocols top-level vs backend

* fix path

* import fix

* the last one

* benches as well
2022-02-21 01:04:53 +01:00
Mamy Ratsimbazafy 81acfb1626
Nim 1.6 in CI (#170)
* try 1.6 CI

* Try CI with 1.6 and windows.

* Bend the knee

* have fun debugging CI

* have fun debugging CI

* more CI spam

* branch -> nim_version

* fight or flight

* properly detect windows

* Fix galore

* 🐍 🐍 snake:

* meh give up on parallelizing windows and dealing with windows PATH issues

* ¯\_ (ツ)_/¯
2022-02-20 23:44:00 +01:00
Mamy Ratsimbazafy dc73c71801
Pairings optimizations (#178)
* bench for cyclotomic square, exp and rename cyclotomic exp + multipairings for BLS12-377

* refactor/unify lines and cyclotomic functions

* Add Karabina's compressed squaring

* Use compressed squarings in final exponentiation

* Weighted addchain for bn254_snarks

* Add new towering options and cost functions

* Rearrange bench summaries

* fix BW6-761
2022-02-20 20:15:20 +01:00
Mamy Ratsimbazafy f2d51a3b6e
Fix spam on OSX CI - copy without substraction issue in squareMont without ADX 2022-02-17 15:14:12 +01:00
Mamy Ratsimbazafy 8b5d5089cb
forgot to commit function sig change (#177) 2022-02-14 17:12:30 +01:00
Mamy Ratsimbazafy 5db30ef68d
Low-level refactor part 2 (#176) 2022-02-14 14:38:22 +01:00
Mamy Ratsimbazafy 14af7e8724
Low-level refactoring (#175)
* Add specific fromMont conversion routine. Rename montyResidue to getMont

* missed test file

* Add x86_64 ASM for fromMont

* Add x86_64 MULX/ADCX/ADOX for fromMont

* rework Montgomery Multiplication with prefetch/latency hiding techniques

* Fix ADX autodetection, closes #174. Rollback faster mul_mont attempt, no improvement and debug pain.

* finalSub in fromMont & adx_bmi -> adx

* Some {.noInit.} to avoid Nim zeroMem (which should be optimized away but who knows)

* Uniformize name 'op+domain': mulmod - mulmont

* Fix asm codegen bug "0x0000555555565930 <+896>:   sbb    0x20(%r8),%r8" with Clang in final substraction

* Prepare for skipping final substraction

* Don't forget to copy the result when we skip the final substraction

* Seems like we need to stash the idea of skipping the final substraction for now, needs bounds analysis https://eprint.iacr.org/2017/1057.pdf

* fix condition for ASM 32-bit

* optim modular addition when sparebit is available
2022-02-14 00:16:55 +01:00
Mamy Ratsimbazafy 53c4db7ead
Fast modular inversion (#172)
* 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
2022-02-10 14:05:07 +01:00
Mamy Ratsimbazafy c02e6bdf84
Tag vartime the bithacks that are not constant-time 2022-02-06 18:36:02 +01:00
Mamy Ratsimbazafy 404a966601
^k to ᵏ (skip ci) 2022-02-06 15:38:26 +01:00
Mamy Ratsimbazafy 50717d8de6
Test GT-subgroup for BW6-761 (#171) 2022-01-08 17:30:26 +01:00
Mamy Ratsimbazafy f6c02fe075
Optimized subgroup checks and cofactor clearing (#169)
* Move cofactor clearing to dedicated per-curve subgroups file

* Add BLS12-381 fast subgroup checks

* Implement fast cofactor clearing for BN254_snarks

* Add fast subgroup check to BN254Snarks

* add BLS12_377 optimized cofactor and subgroup functions

* Add BN254_Nogami

* Add GT-subgroup tests

* Use the new subgroup checks for Eth1 EVM precompiles
2022-01-03 14:12:58 +01:00
Mamy Ratsimbazafy c42e2a0251
Rename NotOnTwist/OnTwist => subgroup G1 and G2 2022-01-01 19:17:04 +01:00
Mamy Ratsimbazafy 86a67013dd
glv filename -> endomorphisms 2022-01-01 17:49:26 +01:00
Mamy Ratsimbazafy bea798e27c
Field sqrt optimization (#168)
* add more Fp tests for Twisted Edwards curves

* add fused sqrt+division bench

* Significant fused sqrt+division improvement for any prime field over algorithm described in  "High-Speed High-Security Signature", Bernstein et al, p15 "Fast decompression", https://ed25519.cr.yp.to/ed25519-20110705.pdf

* Activate secp256k1 field benches + spring renaming of field multiplication

* addition chains for inversion and sqrt of Curve25519

* Make isSquare use addition chains

* add double-prec mul/square bench for <256-bit prime fields.
2022-01-01 16:19:35 +01:00
Mamy Ratsimbazafy 53f9708c2b
Initial support for Twisted Edwards curves (#167)
* Point decoding: optimized sqrt for p ≡ 5 (mod 8) (Curve25519)

* Implement fused sqrt(u/v) for twisted edwards point deserialization

* Introduce twisted edwards affine

* Allow declaration of curve field elements (and fight against recursive dependencies

* Twisted edwards group law + tests

* Add support for jubjub and bandersnatch #162

* test twisted edwards scalar mul
2021-12-29 01:54:17 +01:00
Mamy Ratsimbazafy 1195e5e980
Eth1 evm precompiles (#166)
* Prepare support for Eth1 EVM

* Implement EIP 196 (Ethereum BN254 add/mul)

* Implement ETH1 pairing precompile

* Accelerate isOnCurve for G2 with precomputation
2021-12-15 00:02:11 +01:00
Mamy Ratsimbazafy f5c0b6245d
Multipairing (#165)
* Productionize multipairings for BLS12-381

* typo

* arg order + benchmark

* Introduce mul_3way_sparse_sparse

* cleanup MultiMiller loop

* fix init sparse optimization in multimiller loop [skip ci]
2021-08-16 22:22:51 +02:00
Mamy Ratsimbazafy 979d183657
Tests for the eth2 BLS signature protocol (BLS12-381, pubkeys G1, signatures G2) using low-level primitives (#164) 2021-08-15 11:41:46 +02:00
Mamy Ratsimbazafy 0bc228126a
hash-to-curve BLS12-381 perf (#163)
* fp square noasm split from non-4 non-6 limbs fallback (40% speedup)

* optimized cofactor clearing for BLS12-381 G2

* Support jacobian isogenies and point_add on isogenies

* fuse addition and isogeny map

* {.noInit.} and sparseMul

* poly_eval_horner init

* dedicated invsqrt + cleanup square root file

* hash to field: reduce copy overhead and don't return arrays

* h2c isogeny jacobian reuse pow 3 precomputed value

* Fix sqrt bench
2021-08-14 21:01:50 +02:00
Mamy Ratsimbazafy 499f9605b2
Hash to curve - BLS12-381 (#110)
* Hash to Curve: impl expand_message_xmd

* Try to precompute part of hash to curve at compile-time

* sha256 bench - use the new hashes module

* [WIP] smoke test hash to field

* Implement hash_to_field with expected output

* unoptimized hash-to-curve G2 for BLS12-381

* Don't run sanitizer on hash to field as it uses GC-ed strings
2021-08-13 22:07:26 +02:00
Mamy André-Ratsimbazafy 5404437d18
CI: don't cancel master 2021-07-25 13:21:38 +02:00
Mamy André-Ratsimbazafy c2d716b056
update the benches in README 2021-03-06 09:20:56 +01:00
Mamy Ratsimbazafy afb33a5a77
Assembly for Fp2 (#161)
* Assembly for Fp2

* fix import
2021-02-20 15:21:23 +01:00
Mamy Ratsimbazafy aefd40f455
Square ADX (#160)
* Add MULX/ADOX/ADCX assembly for squaring 4 limbs

* Add squarings for 6 limbs

* Use the new square assembly where relevant

* Fix 32-bit register name and calling convention

* typo

* Disable MontRed ASM for 2 limbs or less
2021-02-20 13:18:49 +01:00
Mamy André-Ratsimbazafy 8a7c35af59
Cleanup: consolidate extensions and instantiation + reorg extension module 2021-02-15 22:00:15 +01:00
Mamy André-Ratsimbazafy 8918cabb56
Cleanup: introduce clobbered registers, remove explicit rax, rdx for multiplication (minus 30-50 lines for related assembly files) 2021-02-15 20:38:12 +01:00
Mamy André-Ratsimbazafy 18069e54d3
unrolled SHA256 (for 32B faster only if using ssse3) 2021-02-15 18:43:35 +01:00
Mamy André-Ratsimbazafy 976edb64bb
Move pairing_bw6_761 to staging area 2021-02-14 18:35:20 +01:00
Mamy André-Ratsimbazafy e9a1ef91fb
[Research] KZG polynomial commit and verify 2021-02-14 17:59:52 +01:00
Mamy André-Ratsimbazafy 2242650d38
move the multipairing file to research [skip ci] 2021-02-14 17:18:42 +01:00
Mamy André-Ratsimbazafy 799b6530f8
[research] Polynomial evaluation and verification [skip ci] 2021-02-14 17:14:33 +01:00
Mamy André-Ratsimbazafy 3e977488a9
add bench whole summary for curves 2021-02-14 14:24:48 +01:00
Mamy Ratsimbazafy 9ac9862401
Optimize Miller Loop and prepare Multi-pairing (#159)
* Pairing with affine: align API to BLST and Gurvy and common use-case.

* Implement multi-pairing / aggregate verif for BLS12-381 (+2% pairing perf)

* Generalize the optimized miller loop for single pairing

* Immplement the miller loop addchain for BLS12-377

* Miller addition chain for BN254-Nogami

* no Miller adchain for BN254-Snarks

* Update the line test with new tower https://github.com/mratsim/constantine/pull/153

* Somewhat sparse for Fp2 M-Twist

* Implement line by line multiplication for Fp12 D-Twist

* Somewhat sparse Mul for Fp12 D-Twist

* Finish the sparse and somewhat sparse multiplications
2021-02-14 13:06:57 +01:00
Mamy André-Ratsimbazafy 0e43c12095
Cleanup cyclotomic square, 2 less temporaries and support aliasing 2021-02-12 23:16:57 +01:00
Mamy Ratsimbazafy e7296a78a8
Double-precision cubic towering + pairing (#158)
* Double-precision cubic towering 5% perf+

* Lazy Cubic squaring, yet another 3% boost.

* Implement lazy reduced inverse (but inclusive perf boost)

* Double precision sparse multiplication for D-Twist ~ 2% for BN254 Nogami and Snarks curves

* Implement lazy sparse mul for M-twist

* Try to introduce more laziness but need bound proofs
2021-02-12 21:27:58 +01:00
Mamy André-Ratsimbazafy 0e02524225
What is this, printing constant-time values? Oh no you don't. 2021-02-11 20:27:31 +01:00