* add Sage for constant time tonelli shanks
* Fused sqrt and invsqrt via Tonelli Shanks
* isolate sqrt in their own folder
* Implement constant-time Tonelli Shanks for any prime
* Implement Fp2 sqrt for any non-residue
* Add tests for BLS12_377
* Lattice decomposition script for BLS12_377 G1
* BLS12-377 G1 GLV ok, G2 GLV issue
* Proper endomorphism acceleration support for BLS12-377
* Add naive pairing support for BLS12-377
* Activate more bench for BLS12-377
* Fix MSB computation
* Optimize final exponentiation + add benches
* Implement optimized final exponentiation for BN254-Nogami
* And BN254 Snarks support
* Optimize D-Twist sparse Fp12 x line multiplication
* Move quadruple/octuple and add to Github issues: https://github.com/mratsim/constantine/issues/88 [skip ci]
* 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
The running time of the test suite has increased significantly with:
- new tests (for example scalar mul implementations)
- new tests that stresses the whole stack/tower
- x3 randomizers for fuzzing
- new CI and platforms: Total 16x runs per commit
This would let all tests take less than 10 min on CI even non-parallelized one like on Windows.
* 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
* Fix 8x bigger than necessary encoding size of miniscalars in scalar mul
* initial windowed GLV-SAC implementation
* Simplify table encoding to match k0 without flipping bits
* Sage: Lattice decomp script fixes from anonymous reviewer
* update recoding mini test and add recoding primitives
* Update the GLV recoding
* update comments on positive/negative recoding [skip ci]
* sprinkle some {.noInit.} where possible
* Implement double-width field multiplication for double-width towering
* Fp2 mul acceleration via double-width lazy reduction (pure Nim)
* Inline assembly for basic add and sub
* Use 2 registers instead of 12+ for ASM conditional copy
* Prepare assembly for extended multiprecision multiplication support
* Add assembly for mul
* initial implementation of assembly reduction
* stash current progress of assembly reduction
* Fix clobbering issue, only P256 comparison remain buggy
* Fix asm montgomery reduction for NIST P256 as well
* MULX/ADCX/ADOX multi-precision multiplication
* MULX/ADCX/ADOX reduction v1
* Add (deactivated) assembly for double-width substraction + rework benches
* Add bench to nimble and deactivate double-width for now. slower than classic
* Fix x86-32 running out of registers for mul
* Clang needs to be at v9 to support flag output constraints (Xcode 11.4.2 / OSX Catalina)
* 32-bit doesn't have enough registers for ASM mul
* Fix again Travis Clang 9 issues
* LLVM 9 is not whitelisted in travis
* deactivated assembler with travis clang
* syntax error
* another
* ...
* missing space, yeah ...
* Proof-of-Concept Assembly code generator
* Tag inline per procedure so we can easily track the tradeoff on tower fields
* Implement Assembly for modular addition (but very curious off-by-one)
* Fix off-by one for moduli with non msb set
* Stash (super fast) alternative but still off by carry
* Fix GCC optimizing ASM away
* Save 1 register to allow compiling for BLS12-381 (in the GMP test)
* The compiler cannot find enough registers if the ASM file is not compiled with -O3
* Add modsub
* Add field negation
* Implement no-carry Assembly optimized field multiplication
* Expose UseX86ASM to the EC benchmark
* omit frame pointer to save registers instead of hardcoding -O3. Also ensure early clobber constraints for Clang
* Prepare for assembly fallback
* Implement fallback for CPU that don't support ADX and BMI2
* Add CPU runtime detection
* Update README closes#66
* Remove commented out code
* Add test case for #30 - Euler's criterion doesn't return 1 for a square
* Detect #42 in the test suite
* Detect #43 in the test suite
* comment in sqrt tests
* Add #67 to the anti-regression suite
* Add #61 to the anti-regression suite
* Add #62 to anti-regression suite
* Add #60 to the anti-regression suite
* Add #64 to the test suite
* Add #65 - case 1
* Add #65 case 2
* Add #65 case 3
* Add debug check to isSquare/Euler's Criterion/Legendre Symbol
* Make sure our primitives are correct
* For now deactivate montySquare CIOS fix#61#62
* Narrow down #42 and #43 to powinv on 32-bit
* Detect #42#43 at the fast squaring level
* More #42, #43 tests, Use multiplication instead of squaring as a temporary workaround, see https://github.com/mratsim/constantine/issues/68
* Prevent regression of #67 now that squaring is "fixed"
Mamy André-Ratsimbazafy