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rust-bitcoin-unsafe-fast
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Pubkey hash functions (normal and witness)

This commit is contained in:
Dr Maxim Orlovsky 2020-01-10 23:41:22 +01:00
parent c1ae3b7955
commit 1d9f531581
1 changed files with 37 additions and 0 deletions
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37
src/util/key.rs
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@ -22,6 +22,8 @@ use std::str::FromStr;
use secp256k1::{self, Secp256k1}; use secp256k1::{self, Secp256k1};
use network::constants::Network; use network::constants::Network;
use hashes::Hash;
use hash_types::{PubkeyHash, WPubkeyHash};
use util::base58; use util::base58;
/// A key-related error. /// A key-related error.
@ -80,6 +82,24 @@ pub struct PublicKey {
} }
impl PublicKey { impl PublicKey {
/// Returns bitcoin 160-bit hash of the public key
pub fn pubkey_hash(&self) -> PubkeyHash {
if self.compressed {
PubkeyHash::hash(&self.key.serialize())
} else {
PubkeyHash::hash(&self.key.serialize_uncompressed())
}
}
/// Returns bitcoin 160-bit hash of the public key for witness program
pub fn wpubkey_hash(&self) -> WPubkeyHash {
if self.compressed {
WPubkeyHash::hash(&self.key.serialize())
} else {
WPubkeyHash::hash(&self.key.serialize_uncompressed())
}
}
/// Write the public key into a writer /// Write the public key into a writer
pub fn write_into<W: io::Write>(&self, mut writer: W) { pub fn write_into<W: io::Write>(&self, mut writer: W) {
let write_res: io::Result<()> = if self.compressed { let write_res: io::Result<()> = if self.compressed {
@ -360,6 +380,7 @@ mod tests {
use super::{PrivateKey, PublicKey}; use super::{PrivateKey, PublicKey};
use secp256k1::Secp256k1; use secp256k1::Secp256k1;
use std::str::FromStr; use std::str::FromStr;
use hashes::hex::ToHex;
use network::constants::Network::Testnet; use network::constants::Network::Testnet;
use network::constants::Network::Bitcoin; use network::constants::Network::Bitcoin;
use util::address::Address; use util::address::Address;
@ -400,6 +421,22 @@ mod tests {
assert_eq!(pk, PublicKey::from_str("032e58afe51f9ed8ad3cc7897f634d881fdbe49a81564629ded8156bebd2ffd1af").unwrap()); assert_eq!(pk, PublicKey::from_str("032e58afe51f9ed8ad3cc7897f634d881fdbe49a81564629ded8156bebd2ffd1af").unwrap());
} }
#[test]
fn test_pubkey_hash() {
let pk = PublicKey::from_str("032e58afe51f9ed8ad3cc7897f634d881fdbe49a81564629ded8156bebd2ffd1af").unwrap();
let upk = PublicKey::from_str("042e58afe51f9ed8ad3cc7897f634d881fdbe49a81564629ded8156bebd2ffd1af191923a2964c177f5b5923ae500fca49e99492d534aa3759d6b25a8bc971b133").unwrap();
assert_eq!(pk.pubkey_hash().to_hex(), "9511aa27ef39bbfa4e4f3dd15f4d66ea57f475b4");
assert_eq!(upk.pubkey_hash().to_hex(), "ac2e7daf42d2c97418fd9f78af2de552bb9c6a7a");
}
#[test]
fn test_wpubkey_hash() {
let pk = PublicKey::from_str("032e58afe51f9ed8ad3cc7897f634d881fdbe49a81564629ded8156bebd2ffd1af").unwrap();
let upk = PublicKey::from_str("042e58afe51f9ed8ad3cc7897f634d881fdbe49a81564629ded8156bebd2ffd1af191923a2964c177f5b5923ae500fca49e99492d534aa3759d6b25a8bc971b133").unwrap();
assert_eq!(pk.wpubkey_hash().to_hex(), "9511aa27ef39bbfa4e4f3dd15f4d66ea57f475b4");
assert_eq!(upk.wpubkey_hash().to_hex(), "ac2e7daf42d2c97418fd9f78af2de552bb9c6a7a");
}
#[cfg(feature = "serde")] #[cfg(feature = "serde")]
#[test] #[test]
fn test_key_serde() { fn test_key_serde() {