Crate sp_finality_grandpa[−][src]

Primitives for GRANDPA integration, suitable for WASM compilation.

Structs

EquivocationProof	Proof of voter misbehavior on a given set id. Misbehavior/equivocation in GRANDPA happens when a voter votes on the same round (either at prevote or precommit stage) for different blocks. Proving is achieved by collecting the signed messages of conflicting votes.
OpaqueKeyOwnershipProof	An opaque type used to represent the key ownership proof at the runtime API boundary. The inner value is an encoded representation of the actual key ownership proof which will be parameterized when defining the runtime. At the runtime API boundary this type is unknown and as such we keep this opaque representation, implementors of the runtime API will have to make sure that all usages of `OpaqueKeyOwnershipProof` refer to the same type.
ScheduledChange	A scheduled change of authority set.
VersionedAuthorityList	An AuthorityList that is encoded with a version specifier. The encoding version is updated any time the AuthorityList type changes. This ensures that encodings of different versions of an AuthorityList are differentiable. Attempting to decode an authority list with an unknown version will fail.

ConsensusLog	An consensus log item for GRANDPA.
Equivocation	Wrapper object for GRANDPA equivocation proofs, useful for unifying prevote and precommit equivocations under a common type.

AUTHORITIES_CALL	WASM function call to get current GRANDPA authorities.
GRANDPA_AUTHORITIES_KEY	The storage key for the current set of weighted Grandpa authorities. The value stored is an encoded VersionedAuthorityList.
GRANDPA_ENGINE_ID	The `ConsensusEngineId` of GRANDPA.
KEY_TYPE	Key type for GRANDPA module.
PENDING_CHANGE_CALL	WASM function call to check for pending changes.

APIs for integrating the GRANDPA finality gadget into runtimes. This should be implemented on the runtime side.

check_equivocation_proof	Verifies the equivocation proof by making sure that both votes target different blocks and that its signatures are valid.
check_message_signature	Check a message signature by encoding the message as a localized payload and verifying the provided signature using the expected authority id.
check_message_signature_with_buffer	Check a message signature by encoding the message as a localized payload and verifying the provided signature using the expected authority id. The encoding necessary to verify the signature will be done using the given buffer, the original content of the buffer will be cleared.
localized_payload	Encode round message localized to a given round and set id.
localized_payload_with_buffer	Encode round message localized to a given round and set id using the given buffer. The given buffer will be cleared and the resulting encoded payload will always be written to the start of the buffer.
sign_message	Localizes the message to the given set and round and signs the payload.

AuthorityId	Identity of a Grandpa authority.
AuthorityIndex	The index of an authority.
AuthorityList	A list of Grandpa authorities with associated weights.
AuthorityPair	The grandpa crypto scheme defined via the keypair type.
AuthoritySignature	Signature for a Grandpa authority.
AuthorityWeight	The weight of an authority.
RoundNumber	The round indicator.
SetId	The monotonic identifier of a GRANDPA set of authorities.