Optimized C library for EC operations on curve secp256k1

Edit Package libsecp256k1

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.

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Source Files
Filename Size Changed
libsecp256k1.changes 0000008716 8.51 KB
libsecp256k1.spec 0000002839 2.77 KB
v0.5.0.tar.gz 0001960832 1.87 MB
Revision 3 (latest revision is 5)
Dominique Leuenberger's avatar Dominique Leuenberger (dimstar_suse) accepted request 1172329 from Michael Vetter's avatar Michael Vetter (jubalh) (revision 3)
- Update to 0.5.0:
  Added:
  * New function secp256k1_ec_pubkey_sort that sorts public keys
    using lexicographic (of compressed serialization) order.
  Changed:
  * The implementation of the point multiplication algorithm used
    for signing and public key generation was changed, resulting
    in improved performance for those operations. The related
    configure option --ecmult-gen-precision was replaced with
    --ecmult-gen-kb (ECMULT_GEN_KB for CMake).
    This changes the supported precomputed table sizes for these
    operations. The new supported sizes are 2 KiB, 22 KiB, or 86
    KiB (while the old supported sizes were 32 KiB, 64 KiB, or 512 KiB).
  ABI Compatibility:
  * The ABI is backward compatible with versions 0.4.x and 0.3.x.
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