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Switch to libsecp256k1-based validation for ECDSA

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Pieter Wuille
2015-07-28 20:11:20 +02:00
parent b632145ede
commit 6e18268616
13 changed files with 291 additions and 398 deletions
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15
doc/release-notes.md
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@@ -190,6 +190,21 @@ calculating the target.
A more detailed documentation about keeping traffic low can be found in
[/doc/reducetraffic.md](/doc/reducetraffic.md).
Signature validation using libsecp256k1
---------------------------------------
ECDSA signatures inside Bitcoin transactions now use validation using
[https://github.com/bitcoin/secp256k1](libsecp256k1) instead of OpenSSL.
Depending on the platform, this means a significant speedup for raw signature
validation speed. The advantage is largest on x86_64, where validation is over
five times faster. In practice, this translates to a raw reindexing and new
block validation times that are less than half of what it was before.
Libsecp256k1 has undergone very extensive testing and validation.
A side effect of this change is that libconsensus no longer depends on OpenSSL.
0.12.0 Change log
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