Commit Graph

4 Commits

Author SHA1 Message Date
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 d41c653c8a
Double-width tower extension part 1 (#72)
* 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 ...
2020-08-20 10:21:39 +02:00
Mamy Ratsimbazafy a2a2495351
Github Action CI (without GMP) (#29)
* Github Action CI (without GMP)

* Deactivate MacOS, spurious failures: https://github.com/actions/virtual-environments/issues/841

* force install with nimble

* Add badge

* Don"t include Nim 1.2.x https://github.com/mratsim/constantine/pull/20#issuecomment-646327952

* Action branch mistake

* Add back OSX? https://github.com/actions/virtual-environments/issues/841, https://github.com/actions/virtual-environments/issues/969

* fix MacOS target

* comment out RDTSC on i386

* Add initialization canaries

* Add more verbose output to debug windows failures

* spurious windows i386 test

* For now only activate Linux and mac

* missed include
2020-06-19 22:08:15 +02:00
Mamy André-Ratsimbazafy 43abf9dfc4
SHorter test names for github display 2020-06-15 23:15:01 +02:00