66b2cf1ccf Use immintrin.h everywhere for intrinsics (Pieter Wuille)
4c935e2eee Add SHA256 implementation using using Intel SHA intrinsics (Pieter Wuille)
268400d318 [Refactor] CPU feature detection logic for SHA256 (Pieter Wuille)
Pull request description:
Based on #13191.
This adds SHA256 implementations that use Intel's SHA Extension instructions (using intrinsics). This needs GCC 4.9 or Clang 3.4.
In addition to #13191, two extra implementations are provided:
* (a) A variable-length SHA256 implementation using SHA extensions.
* (b) A 2-way 64-byte input double-SHA256 implementation using SHA extensions.
Benchmarks for 9001-element Merkle tree root computation on an AMD Ryzen 1800X system:
* Using generic C++ code (pre-#10821): 6.1ms
* Using SSE4 (master, #10821): 4.6ms
* Using 4-way SSE4 specialized for 64-byte inputs (#13191): 2.8ms
* Using 8-way AVX2 specialized for 64-byte inputs (#13191): 2.1ms
* Using 2-way SHA-NI specialized for 64-byte inputs (this PR): 0.56ms
Benchmarks for 32-byte SHA256 on the same system:
* Using SSE4 (master, #10821): 190ns
* Using SHA-NI (this PR): 53ns
Benchmarks for 1000000-byte SHA256 on the same system:
* Using SSE4 (master, #10821): 2.5ms
* Using SHA-NI (this PR): 0.51ms
Tree-SHA512: 2b319e33b22579f815d91f9daf7994a5e1e799c4f73c13e15070dd54ba71f3f6438ccf77ae9cbd1ce76f972d9cbeb5f0edfea3d86f101bbc1055db70e42743b7
32d153fa36 For AVX2 code, also check for AVX, XSAVE, and OS support (Pieter Wuille)
Pull request description:
Fixes#12903.
Tree-SHA512: 01e71efb5d3a43c49a145a5b1dc4fe7d0a491e1e78479e7df830a2aaac57c3dcfc316e28984c695206c76f93b68e4350fc037ca36756ca579b7070e39c835da2
57ba401abc Enable double-SHA256-for-64-byte code on 32-bit x86 (Pieter Wuille)
Pull request description:
The SSE4 and AVX2 double-SHA256-for-64-byte input code from #13191 compiles fine on 32-bit x86 systems, but the autodetection logic in sha256.cpp doesn't enable it. Fix this.
Note that these instruction sets are only available on CPUs that support 64-bit mode as well, so it is only beneficial in the (perhaps unlikely) scenario where a 64-bit CPU is running a 32-bit Bitcoin Core binary.
Tree-SHA512: 39d5963c1ba8c33932549d5fe98bd184932689a40aeba95043eca31dd6824f566197c546b60905555eccaf407408a5f0f200247bb0907450d309b0a70b245102
5abb93f0e Fix include path for bitcoin-config.h in crypto/common.h (danra)
Pull request description:
All the other files in the repo which include bitcoin-config.h do so with the appropriate subfolder prefixed: config/bitcoin-config.h
The header should be included with the appropriate subfolder here as well.
Tree-SHA512: abda23a9cf251553f90afe0ee1866de46ed579471f4139737239a4f9334ca817d985deac6336740898718775d1264c0b80cb348668b10a9cae970895f2de37b8
538cc0ca8 build: Mention use of asm in summary (Wladimir J. van der Laan)
ce5381e7f build: Rename --enable-experimental-asm to --enable-asm and enable by default (Wladimir J. van der Laan)
Pull request description:
Now that 0.15 is branched off, enable assembler SHA256 optimizations by default, but still allow disabling them, for example if something goes wrong with auto-detection on a platform.
Also add mention of the use of asm in the configure summary.
Tree-SHA512: cd20c497f65edd6b1e8b2cc3dfe82be11fcf4777543c830ccdec6c10f25eab4576b0f2953f3957736d7e04deaa4efca777aa84b12bb1cecb40c258e86c120ec8
All the other files in the repo which include bitcoin-config.h do so with the appropriate subfolder prefixed: config/bitcoin-config.h
The header should be included with the appropriate subfolder here as well.
This canonicalization also allows getting rid of a bit of extra configuration in Makefile.am.
The output should always match openssl's, even for failed operations. Even for
a decrypt with broken padding, the output is always deterministic (and attemtps
to be constant-time).
Byte counts for SHA256, SHA512, SHA1 and RIPEMD160 must be 64 bits.
`size_t` has a different size per platform, causing divergent results
when hashing more than 4GB of data.
- Detect endian instead of stopping configure on big-endian
- Add `byteswap.h` and `endian.h` header for compatibility with
Windows and other operating systems that don't come with them
- Update `crypto/common.h` functions to use compat
endian header
Jon Layton
DrahtBot
Wladimir J. van der Laan
Chun Kuan Lee
Pieter Wuille
practicalswift
jc
532479301
Akira Takizawa
MeshCollider
Utsav Gupta
danra
isle2983
fsb4000
Cory Fields
sandakersmann