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bitcoin-core / secp256k1 Public

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Safegcd inverses, drop Jacobi symbols, remove libgmp#831

Merged

sipa merged 16 commits intobitcoin-core:masterbitcoin-core/secp256k1:masterfrom sipa:202010_pr767sipa/secp256k1:202010_pr767Copy head branch name to clipboard

Mar 18, 2021

+3,049-1,650

Conversation Commits16 (16)Checks Files changed

Commits

Commits on Mar 8, 2021

Add secp256k1_ctz{32,64}_var functions
sipa
committed
Add safegcd based modular inverse modules

peterdettman
authored and
sipa
committed
Add extensive comments on the safegcd algorithm and implementation
sipa
committed
Add tests for modinv modules
sipa
committed

Commits on Mar 11, 2021

Improve bounds checks in modinv modules
sipa
committed
Move secp256k1_scalar_{inverse{_var},is_even} to per-impl files
sipa
committed
Move secp256k1_fe_inverse{_var} to per-impl files
sipa
committed

Commits on Mar 12, 2021

Make field/scalar code use the new modinv modules for inverses
sipa
committed
Improve field/scalar inverse tests
sipa
committed
Remove unused scalar_sqr
sipa
committed
Remove unused Jacobi symbol support
sipa
committed

Commits on Mar 15, 2021

Remove num/gmp support
sipa
committed
Optimization: special-case zero modulus limbs in modinv64
sipa
committed
Optimization: use formulas instead of lookup tables for cancelling g bits

peterdettman
authored and
sipa
committed
Optimization: track f,g limb count and pass to new variable-time update_fg_var

peterdettman
authored and
sipa
committed
Make scalar_inverse{,_var} benchmark scale with SECP256K1_BENCH_ITERS
sipa
committed

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