3 releases (1 stable)
2.1.0 | Oct 29, 2024 |
---|---|
0.0.2 | Oct 18, 2024 |
0.0.1 | Jul 3, 2024 |
#536 in Magic Beans
5,137 downloads per month
Used in 241 crates
(2 directly)
35KB
404 lines
Public key recovery from secp256k1 ECDSA signatures.
This module provides low-level cryptographic building blocks that must be used carefully to ensure proper security. Read this documentation and accompanying links thoroughly.
The secp256k1_recover
syscall allows a secp256k1 public key that has
previously signed a message to be recovered from the combination of the
message, the signature, and a recovery ID. The recovery ID is generated
during signing.
Use cases for secp256k1_recover
include:
- Implementing the Ethereum
ecrecover
builtin contract. - Performing secp256k1 public key recovery generally.
- Verifying a single secp256k1 signature.
While secp256k1_recover
can be used to verify secp256k1 signatures, Solana
also provides the secp256k1 program, which is more flexible, has lower CPU
cost, and can validate many signatures at once.
Dependencies
~2.5–4.5MB
~82K SLoC