Crate key_share 

Key share of Threshold Signature Scheme (TSS)

TSS protocols often share the same structure of key share. Having a separate crate with definition of the key share struct help reusing the code, keeping different implementations compatible and interopable.

The crate provides DirtyCoreKeyShare that contains data such as: secret share, other signers commitments, public key and etc.

DirtyCoreKeyShare may contain any data, not necessarily consistent. TSS protocol implementations typically don’t want to handle inconsistent key shares and would rather assume that it’s valid. Valid<T> is a type-guard stating that the value T it holds was validated. So, Valid<DirtyCoreKeyShare> (or CoreKeyShare type alias) can be used to express that only valid key shares are accepted.

Modules

trusted_dealerspof

Trusted dealer

Structs

DirtyCoreKeyShare

Dirty (unvalidated) core key share

DirtyKeyInfo

Public Key Info

InvalidCoreShare

Error indicating that key share is not valid

ReconstructErrorspof

Error indicating that key reconstruction failed

Valid

Validated value

ValidateError

Validation error

VssSetup

Secret sharing setup of a key

Enums

HdError

Error related to HD key derivation

Traits

Validate

Represents a type that can be validated

ValidateFromParts

Represents a type that can be constructed and validated from Parts

Functions

reconstruct_secret_keyspof

Reconstructs a secret key from set of at least min_signers key shares

Type Aliases

CoreKeyShare

Core key share

KeyInfo

Public Key Info