Crate fedimint_threshold_crypto

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

Re-exports

pub use ff;

pub use group;

pub use pairing;

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.

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

A pairing::Engine for BLS12-381 pairing operations.

PublicKey

A public key.

PublicKeySet

A public key and an associated set of public key shares.

PublicKeyShare

A public key share.

Scalar

Represents an element of the scalar field $\mathbb{F}_q$ of the BLS12-381 elliptic curve construction.

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

PK_SIZE

The size of a key’s representation in bytes.

SIG_SIZE

The size of a signature’s representation in bytes.

Traits

IntoScalar

A conversion into an element of the field Scalar.

Functions

hash_g2

Returns a hash of the given message in G2.