Added an example for signing and verification

This commit is contained in:
Elichai Turkel 2019-10-28 22:09:59 +02:00
parent 5ee0afbde4
commit e28f756788
No known key found for this signature in database
GPG Key ID: 9383CDE9E8E66A7F
3 changed files with 39 additions and 0 deletions

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@ -36,6 +36,7 @@ script:
- cargo test --verbose
- cargo build --verbose --release
- cargo test --verbose --release
- cargo run --example sign_verify
- cargo run --example generate_keys --features=rand
- if [ ${TRAVIS_RUST_VERSION} == "stable" ]; then cargo doc --verbose --features="rand,serde,recovery,endomorphism"; fi
- if [ ${TRAVIS_RUST_VERSION} == "nightly" ]; then cargo test --verbose --benches --features=unstable; fi

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@ -51,6 +51,9 @@ version = "1.0"
optional = true
default-features = false
[[example]]
name = "sign_verify"
[[example]]
name = "generate_keys"
required-features = ["rand"]

35
examples/sign_verify.rs Normal file
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@ -0,0 +1,35 @@
extern crate bitcoin_hashes;
extern crate secp256k1;
use bitcoin_hashes::{sha256, Hash};
use secp256k1::{Error, Message, PublicKey, Secp256k1, SecretKey, Signature, Signing, Verification};
fn verify<C: Verification>(secp: &Secp256k1<C>, msg: &[u8], sig: [u8; 64], pubkey: [u8; 33]) -> Result<bool, Error> {
let msg = sha256::Hash::hash(msg);
let msg = Message::from_slice(&msg)?;
let sig = Signature::from_compact(&sig)?;
let pubkey = PublicKey::from_slice(&pubkey)?;
Ok(secp.verify(&msg, &sig, &pubkey).is_ok())
}
fn sign<C: Signing>(secp: &Secp256k1<C>, msg: &[u8], seckey: [u8; 32]) -> Result<Signature, Error> {
let msg = sha256::Hash::hash(msg);
let msg = Message::from_slice(&msg)?;
let seckey = SecretKey::from_slice(&seckey)?;
Ok(secp.sign(&msg, &seckey))
}
fn main() {
let secp = Secp256k1::new();
let seckey = [59, 148, 11, 85, 134, 130, 61, 253, 2, 174, 59, 70, 27, 180, 51, 107, 94, 203, 174, 253, 102, 39, 170, 146, 46, 252, 4, 143, 236, 12, 136, 28];
let pubkey = [2, 29, 21, 35, 7, 198, 183, 43, 14, 208, 65, 139, 14, 112, 205, 128, 231, 245, 41, 91, 141, 134, 245, 114, 45, 63, 82, 19, 251, 210, 57, 79, 54];
let msg = b"This is some message";
let signature = sign(&secp, msg, seckey).unwrap();
let serialize_sig = signature.serialize_compact();
assert!(verify(&secp, msg, serialize_sig, pubkey).unwrap());
}