Optimized C library for EC operations on curve secp256k1
This library is a work in progress and is being used to research best practices. Use at your own risk.
Features:
- secp256k1 ECDSA signing/verification and key generation.
- Adding/multiplying private/public keys.
- Serialization/parsing of private keys, public keys, signatures.
- Constant time, constant memory access signing and pubkey generation.
- Derandomized DSA (via RFC6979 or with a caller provided function.)
- Very efficient implementation.
- Developed at network:cryptocurrencies
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Source Files
| Filename | Size | Changed |
|---|---|---|
| libsecp256k1.changes | 0000007824 7.64 KB | |
| libsecp256k1.spec | 0000002839 2.77 KB | |
| v0.4.1.tar.gz | 0002614189 2.49 MB |
Revision 2 (latest revision is 5)
Ana Guerrero (anag+factory)
accepted
request 1134590
from
Michael Vetter (jubalh)
(revision 2)
- Update to 0.4.1:
* The point multiplication algorithm used for ECDH operations
(module ecdh) was replaced with a slightly faster one.
* Optional handwritten x86_64 assembly for field operations was
removed because modern C compilers are able to output more efficient
assembly. This change results in a significant speedup of some
library functions when handwritten x86_64 assembly is enabled
(--with-asm=x86_64 in GNU Autotools, -DSECP256K1_ASM=x86_64 in CMake),
which is the default on x86_64. Benchmarks with GCC 10.5.0 show a
10% speedup for secp256k1_ecdsa_verify and secp256k1_schnorrsig_verify.
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