34 lines
1.2 KiB
Rust
34 lines
1.2 KiB
Rust
extern crate bls_aggregates;
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extern crate hashing;
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pub use self::bls_aggregates::AggregatePublicKey;
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pub use self::bls_aggregates::AggregateSignature;
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pub use self::bls_aggregates::Keypair;
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pub use self::bls_aggregates::PublicKey;
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pub use self::bls_aggregates::SecretKey;
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pub use self::bls_aggregates::Signature;
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pub const BLS_AGG_SIG_BYTE_SIZE: usize = 97;
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use hashing::canonical_hash;
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use std::default::Default;
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fn extend_if_needed(hash: &mut Vec<u8>) {
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// NOTE: bls_aggregates crate demands 48 bytes, this may be removed as we get closer to production
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hash.resize(48, Default::default())
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}
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/// For some signature and public key, ensure that the signature message was the public key and it
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/// was signed by the secret key that corresponds to that public key.
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pub fn verify_proof_of_possession(sig: &Signature, pubkey: &PublicKey) -> bool {
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let mut hash = canonical_hash(&pubkey.as_bytes());
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extend_if_needed(&mut hash);
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sig.verify_hashed(&hash, &pubkey)
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}
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pub fn create_proof_of_possession(keypair: &Keypair) -> Signature {
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let mut hash = canonical_hash(&keypair.pk.as_bytes());
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extend_if_needed(&mut hash);
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Signature::new_hashed(&hash, &keypair.sk)
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}
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