Crate blsttc

Source
Expand description

A pairing-based threshold cryptosystem for collaborative decryption and signatures.

Re-exports§

pub use crate::error::Error;
pub use crate::error::Result;
pub use blstrs;
pub use group;
pub use rand;
pub use serde;

Modules§

error
Crypto errors.
poly
Utilities for distributed key generation: uni- and bivariate polynomials and commitments.
serde_impl
Serialization and deserialization implementations for group and field elements.

Structs§

Ciphertext
An encrypted message.
DecryptionShare
A decryption share. A threshold of decryption shares can be used to decrypt a message.
Fr
Represents an element of the scalar field $\mathbb{F}_q$ of the BLS12-381 elliptic curve construction.
G1Affine
This is an element of $\mathbb{G}_1$ represented in the affine coordinate space. It is ideal to keep elements in this representation to reduce memory usage and improve performance through the use of mixed curve model arithmetic.
G1Projective
This is an element of $\mathbb{G}_1$ represented in the projective coordinate space.
G2Affine
This is an element of $\mathbb{G}_2$ represented in the affine coordinate space. It is ideal to keep elements in this representation to reduce memory usage and improve performance through the use of mixed curve model arithmetic.
G2Projective
This is an element of $\mathbb{G}_2$ represented in the projective coordinate space.
PEngine
Bls12-381 engine
PublicKey
A public key.
PublicKeySet
A public key and an associated set of public key shares.
PublicKeyShare
A public key share.
SecretKey
A secret key; wraps a single prime field element. The field element is heap allocated to avoid any stack copying that result when passing SecretKeys between stack frames.
SecretKeySet
A secret key and an associated set of secret key shares.
SecretKeyShare
A secret key share.
Signature
A signature.
SignatureShare
A signature share.

Constants§

DST
The domain separator tag
PK_SIZE
The size of a key’s representation in bytes.
SIG_SIZE
The size of a signature’s representation in bytes.
SK_SIZE
The size of a secret key’s representation in bytes.

Traits§

IntoFr
A conversion into an element of the field Fr.

Functions§

hash_g2
Returns a hash of the given message in G2.