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Merge Rust 2018 updates

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This commit is contained in:
Paul Hauner
2018-12-24 10:03:56 +11:00
parent a42d931d66 2c04d343e9
commit 91dea4bf29
28 changed files with 82 additions and 53 deletions
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18
beacon_chain/utils/bls/src/lib.rs
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@@ -5,8 +5,8 @@ extern crate ssz;
mod aggregate_signature;
mod signature;
pub use aggregate_signature::AggregateSignature;
pub use signature::Signature;
pub use crate::aggregate_signature::AggregateSignature;
pub use crate::signature::Signature;
pub use self::bls_aggregates::AggregatePublicKey;
pub use self::bls_aggregates::Keypair;
@@ -15,16 +15,24 @@ pub use self::bls_aggregates::SecretKey;
pub const BLS_AGG_SIG_BYTE_SIZE: usize = 97;
use hashing::proof_of_possession_hash;
use hashing::canonical_hash;
use std::default::Default;
fn extend_if_needed(hash: &mut Vec<u8>) {
// NOTE: bls_aggregates crate demands 48 bytes, this may be removed as we get closer to production
hash.resize(48, Default::default())
}
/// For some signature and public key, ensure that the signature message was the public key and it
/// was signed by the secret key that corresponds to that public key.
pub fn verify_proof_of_possession(sig: &Signature, pubkey: &PublicKey) -> bool {
let hash = proof_of_possession_hash(&pubkey.as_bytes());
let mut hash = canonical_hash(&pubkey.as_bytes());
extend_if_needed(&mut hash);
sig.verify_hashed(&hash, &pubkey)
}
pub fn create_proof_of_possession(keypair: &Keypair) -> Signature {
let hash = proof_of_possession_hash(&keypair.pk.as_bytes());
let mut hash = canonical_hash(&keypair.pk.as_bytes());
extend_if_needed(&mut hash);
Signature::new_hashed(&hash, &keypair.sk)
}