16659efaad | ||
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src | ||
tests | ||
.gitignore | ||
CHANGELOG.md | ||
Cargo.toml | ||
README.md |
README.md
A minimal RedJubjub implementation for use in Zebra.
Two parameterizations of RedJubjub are used in Zcash, one for BindingSig
and one for SpendAuthSig
. This library distinguishes these in the type
system, using the sealed SigType
trait as a type-level enum.
In addition to the usual Signature
, SecretKey
, PublicKey
types, the
library also provides PublicKeyBytes
, a refinement of a [u8; 32]
indicating that bytes represent an encoding of a RedJubjub public key. This
allows the PublicKey
type to cache verification checks related to the
public key encoding.
Examples
Creating a BindingSig
, serializing and deserializing it, and verifying the
signature:
# use std::convert::TryFrom;
use rand::thread_rng;
use redjubjub::*;
let msg = b"Hello!";
// Generate a secret key and sign the message
let sk = SecretKey::<Binding>::new(thread_rng());
let sig = sk.sign(thread_rng(), msg);
// Types can be converted to raw byte arrays using From/Into
let sig_bytes: [u8; 64] = sig.into();
let pk_bytes: [u8; 32] = PublicKey::from(&sk).into();
// Deserialize and verify the signature.
let sig: Signature<Binding> = sig_bytes.into();
assert!(
PublicKey::try_from(pk_bytes)
.and_then(|pk| pk.verify(msg, &sig))
.is_ok()
);
docs
cargo doc --features "nightly" --open