- 0.7.0: Change ''NonceGen'' such that output when message is not present is different from when message is present but has length 0.
- 0.6.0: Change order of arguments and serialization of the message in the ''NonceGen'' hash function
Silence a compiler warning about an unitialized use of a scalar in case
the user tries to provide a 0-length list of commitments.
Also ensures that commitments have normalized field elements when they
are loaded into ges.
99bd3355994a436e25d148c68e097cca11f3c63e Make int128 overflow test use secp256k1_[ui]128_mul (Pieter Wuille)
3afce0af7c00eb4c5ca6d303e36a48c91a800459 Avoid signed overflow in MSVC AMR64 secp256k1_mul128 (Pieter Wuille)
9b5f589d30c3a86df686aadcde63eaa54eeafe71 Heuristically decide whether to use int128_struct (Pieter Wuille)
63ff064d2f7e67bb8ce3431ca5d7f8f056ba6bbd int128: Add test override for testing __(u)mulh on MSVC X64 (Tim Ruffing)
f2b7e88768f86b2fd506be4a8970ba6d1423d0a5 Add int128 randomized tests (Pieter Wuille)
Pull request description:
This is a follow-up to #1000:
* Add randomized unit tests for int128 logic.
* Add CI for the `_(u)mulh` code path (on non-ARM64 MSVC).
* Add heuristic logic to enable int128_struct based arithmetic on 64-bit MSVC, or systems with pointers wider than 32 bits.
* Fix signed overflow in ARM64 MSVC code.
ACKs for top commit:
roconnor-blockstream:
utACK 99bd335
real-or-random:
ACK 99bd3355994a436e25d148c68e097cca11f3c63e tested this also on MSVC locally with the override, including all the benchmark binaries
jonasnick:
utACK 99bd3355994a436e25d148c68e097cca11f3c63e
Tree-SHA512: 5ea897362293b45a86650593e1fdc8c4004a1d9452eed2fa070d22dffc7ed7ca1ec50a4df61e3a33dbe35e08132ad9686286ac44af6742b32b82f11c9d3341c6
a340d9500a9c45e5c261174f48b3eb18b3b3647d ci: add int128_struct tests (Jonas Nick)
dceaa1f57963d1a88b24974eab4b49baac6d04cd int128: Tidy #includes of int128.h and int128_impl.h (Tim Ruffing)
2914bccbc0913806ee64425a27d38cdc27b288e8 Simulated int128 type. (Russell O'Connor)
Pull request description:
Abstracts the int128 type and provides an native version, if available, or a implements it using a pair of int64_t's.
This is activated by setting the configuration flag `--with-test-override-wide-multiply=int128_struct`.
The primary purpose of this PR is to take advantage of MSVC's [umulh](https://docs.microsoft.com/en-us/cpp/intrinsics/umulh?view=msvc-170) intrinsic that we can use to simulate an int128 type which MSVC does not have (AFAIU). This PR lays out the groundwork for this level of MSVC support, but doesn't include the configuration logic to enable it yet.
For completeness, and implementation of `umulh` and `mulh` are also provided for compilers that support neither the intrinsic nor the int128 type (such as CompCert?). This also opens up the possibility of removing the 32-bit field and scalar implementations should that ever be desired.
ACKs for top commit:
sipa:
ACK a340d9500a9c45e5c261174f48b3eb18b3b3647d
jonasnick:
ACK a340d9500a9c45e5c261174f48b3eb18b3b3647d
Tree-SHA512: b4f2853fa3ab60ce9d77b4eaee1fd20c4b612850e19fcb3179d7e36986f420c6c4589ff72f0cf844f989584ace49a1cd23cca3f4e405dabefc8da647a0df679d
6a965b6b98bc08646c87bcfc826181e317079a9e Remove usage of CHECK from non-test file (Tobin C. Harding)
Pull request description:
Currently CHECK is used only in test and bench mark files except for one usage in `ecmult_impl.h`.
We would like to move the definition of CHECK out of `util.h` so that `util.h` no longer has a hard dependency on `stdio.h`.
Done as part of an effort to allow secp256k1 to be compiled to WASM as part of `rust-secp256k1`.
### Note to reviewers
Please review carefully, I don't actually know if this patch is correct. Done while working on #1095. I'm happy to make any changes both in concept and execution - I'm super rusty at C programming.
cc real-or-random
ACKs for top commit:
sipa:
utACK 6a965b6b98bc08646c87bcfc826181e317079a9e
real-or-random:
utACK 6a965b6b98bc08646c87bcfc826181e317079a9e
Tree-SHA512: 6bfb456bdb92a831acd3bc202607e80f6d0a194d6b2cf745c8eceb12ba675d03a319d6d105332b0cbca474e443969295e5a8e938635453e21e057d0ee597440b
After this commit, int128.h and int128_impl.h are included as follows:
- .c files which use int128 include int128_impl.h (after util.h)
- .h files which use int128 include int128.h (after util.h)
This list is exhaustive. util.h needs to included first because it sets
up necessary #defines.
Currently CHECK is used only in test and bench mark files except for one
usage in `ecmult_impl.h`.
We would like to move the definition of CHECK out of `util.h` so that
`util.h` no longer has a hard dependency on `stdio.h`.
Done in preparation for moving the definition of `CHECK` as part of an
effort to allow secp256k1 to be compiled to WASM as part of
`rust-secp256k1`.
