header

package

v0.2.0 Latest Latest Go to latest Published: Dec 24, 2019 License: MIT Imports: 4 Imported by: 0

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Valid go.mod file
Redistributable license
Tagged version
Stable version
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Repository

github.com/dusk-network/dusk-blockchain

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Documentation ¶

Index ¶

func Compose(blsPubKey bytes.Buffer, phase bytes.Buffer, hash []byte) (bytes.Buffer, error)
func Marshal(r *bytes.Buffer, ev wire.Event) error
func MarshalFields(r *bytes.Buffer, h Header) error
func MarshalSignableVote(r *bytes.Buffer, h Header) error
func Unmarshal(r *bytes.Buffer, ev wire.Event) error
func UnmarshalFields(r *bytes.Buffer, h *Header) error
func VerifySignatures(round uint64, step uint8, blockHash []byte, apk *bls.Apk, sig *bls.Signature) error
type Header
type Phase
type Writer

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func Compose ¶ added in v0.2.0

func Compose(blsPubKey bytes.Buffer, phase bytes.Buffer, hash []byte) (bytes.Buffer, error)

Compose is useful when header information is cached and there is an opportunity to avoid unnecessary allocations

func Marshal ¶ added in v0.2.0

func Marshal(r *bytes.Buffer, ev wire.Event) error

Marshal a Header into a Buffer.

func MarshalFields ¶ added in v0.2.0

func MarshalFields(r *bytes.Buffer, h Header) error

MarshalFields marshals the core field of the Header (i.e. Round, Step and BlockHash)

func MarshalSignableVote ¶

func MarshalSignableVote(r *bytes.Buffer, h Header) error

MarshalSignableVote marshals the fields necessary for a Committee member to cast a Vote (namely the Round, the Step and the BlockHash). Note: UnmarshalSignableVote does not make sense as the only reason to use it would be if we could somehow revert a signature to the preimage and thus unmarshal it into a struct :P

func Unmarshal ¶ added in v0.2.0

func Unmarshal(r *bytes.Buffer, ev wire.Event) error

Unmarshal unmarshals the buffer into a Header.

func UnmarshalFields ¶ added in v0.2.0

func UnmarshalFields(r *bytes.Buffer, h *Header) error

UnmarshalFields unmarshals the core field of the Header (i.e. Round, Step and BlockHash)

func VerifySignatures ¶ added in v0.2.0

func VerifySignatures(round uint64, step uint8, blockHash []byte, apk *bls.Apk, sig *bls.Signature) error

VerifySignatures verifies the BLS aggregated signature carried by consensus related messages. The signed message needs to carry information about the round, the step and the blockhash

Types ¶

type Header ¶

type Header struct {
	PubKeyBLS []byte
	Round     uint64
	Step      uint8
	BlockHash []byte
}

Header is an embeddable struct representing the consensus event header fields

func (h Header) CompareRound(round uint64) Phase

func (h Header) CompareRoundAndStep(round uint64, step uint8) Phase

Compare headers to establish time order

func (h Header) Equal(e wire.Event) bool

Equal implements wire.Event. Checks if two headers are the same.

func (h Header) Sender() []byte

Sender implements wire.Event. Returns the BLS public key of the event sender.

type Phase ¶ added in v0.2.0

type Phase uint8

Phase is used to introduce a time order to the Header

const (
	// Same indicates that headers belong to the same phase
	Same Phase = iota
	// Before indicates that the header indicates a past event
	Before
	// After indicates that the header indicates a future event
	After
)

type Writer ¶ added in v0.2.0

type Writer interface {
	WriteHeader([]byte, *bytes.Buffer) error
}

Writer writes the header to a Buffer. It is an interface injected into components

Source Files ¶

View all Source files

header.go

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