diff options
| author | W. J. van der Laan <laanwj@protonmail.com> | 2021-06-07 17:01:57 +0200 |
|---|---|---|
| committer | W. J. van der Laan <laanwj@protonmail.com> | 2021-06-07 17:05:11 +0200 |
| commit | 359f72105ba0184fbf998dfd84217c4229dc54ad (patch) | |
| tree | e83a6f9decc5ed4f416b60a5b28655baae03836f /build_msvc/libtest_util | |
| parent | 3c393ef9e1fb0d42705a9578519af2dc8f88d2d4 (diff) | |
| parent | 5c7ee1b2da6bf783d27034fca9dfd3a64ed525cb (diff) | |
Merge bitcoin/bitcoin#21573: Update libsecp256k1 subtree to latest master
5c7ee1b2da6bf783d27034fca9dfd3a64ed525cb libsecp256k1 no longer has --with-bignum= configure option (Pieter Wuille)
bdca9bcb6c9379707d09c63f02326884befbefb2 Squashed 'src/secp256k1/' changes from 3967d96bf1..efad3506a8 (Pieter Wuille)
cabb5661234f8d832dbc3b65bf80b0acc02db0a0 Disable certain false positive warnings for libsecp256k1 msvc build (Pieter Wuille)
Pull request description:
This updates our src/secp256k1 subtree to the latest upstream master. The changes include:
* The introduction of safegcd-based modular inverses, reducing ECDSA signing time by 25%-30% and ECDSA verification time by 15%-17%.
* [Original paper](https://gcd.cr.yp.to/papers.html) by Daniel J. Bernstein and Bo-Yin Yang
* [Implementation](https://github.com/bitcoin-core/secp256k1/pull/767) by Peter Dettman; [final](https://github.com/bitcoin-core/secp256k1/pull/831) version
* [Explanation](https://github.com/bitcoin-core/secp256k1/blob/master/doc/safegcd_implementation.md) of the algorithm using Python snippets
* [Analysis](https://github.com/sipa/safegcd-bounds) of the maximum number of iterations the algorithm needs
* [Formal proof in Coq](https://medium.com/blockstream/a-formal-proof-of-safegcd-bounds-695e1735a348) by Russell O'Connor, for a high-level equivalent algorithm
* Removal of libgmp as an (optional) dependency (which wasn't used in the Bitcoin Core build)
* CI changes (Travis -> Cirrus)
* Build system improvements
ACKs for top commit:
laanwj:
Tested ACK 5c7ee1b2da6bf783d27034fca9dfd3a64ed525cb
Tree-SHA512: ad8ac3746264d279556a4aa7efdde3733e114fdba8856dd53218588521f04d83950366f5c1ea8fd56329b4c7fe08eedf8e206f8f26dbe3f0f81852e138655431
Diffstat (limited to 'build_msvc/libtest_util')
0 files changed, 0 insertions, 0 deletions