headerCheck

Documentation

Index

• Variables
• func ComputeConsensusGroup(header data.HeaderHandler, nodesCoordinator nodesCoordinator.NodesCoordinator) (validatorsGroup []nodesCoordinator.Validator, err error)
• func ComputeSignersPublicKeys(consensusGroup []string, bitmap []byte) []string
• func NewHeaderIntegrityVerifier(referenceChainID []byte, headerVersionHandler factory.HeaderVersionHandler) (*headerIntegrityVerifier, error)
• type ArgsHeaderSigVerifier
• type HeaderSigVerifier
  • func NewHeaderSigVerifier(arguments *ArgsHeaderSigVerifier) (*HeaderSigVerifier, error)
  • func (hsv *HeaderSigVerifier) IsInterfaceNil() bool
  • func (hsv *HeaderSigVerifier) VerifyLeaderSignature(header data.HeaderHandler) error
  • func (hsv *HeaderSigVerifier) VerifyRandSeed(header data.HeaderHandler) error
  • func (hsv *HeaderSigVerifier) VerifyRandSeedAndLeaderSignature(header data.HeaderHandler) error
  • func (hsv *HeaderSigVerifier) VerifySignature(header data.HeaderHandler) error

Variables

var ErrIndexNotSelected = errors.New("index is not selected")

ErrIndexNotSelected signals that the given index is not selected

var ErrIndexOutOfBounds = errors.New("index is out of bounds")

ErrIndexOutOfBounds signals that the given index is outside expected bounds

var ErrInvalidChainID = errors.New("invalid chain ID")

ErrInvalidChainID signals that an invalid chain ID has been provided

var ErrInvalidReferenceChainID = errors.New("invalid reference Chain ID provided")

ErrInvalidReferenceChainID signals that the provided reference chain ID is not valid

var ErrNilHeaderVersionHandler = errors.New("nil header version handler")

ErrNilHeaderVersionHandler signals that the provided header version handler is nil

var ErrNotEnoughSignatures = errors.New("not enough signatures in block")

ErrNotEnoughSignatures signals that a block is not signed by at least the minimum number of validators from the consensus group

var ErrWrongSizeBitmap = errors.New("wrong size bitmap has been provided")

ErrWrongSizeBitmap signals that the provided bitmap's length is bigger than the one that was required

Functions

func ComputeConsensusGroup

func ComputeConsensusGroup(header data.HeaderHandler, nodesCoordinator nodesCoordinator.NodesCoordinator) (validatorsGroup []nodesCoordinator.Validator, err error)

ComputeConsensusGroup will compute the consensus group that assembled the provided block

func ComputeSignersPublicKeys

func ComputeSignersPublicKeys(consensusGroup []string, bitmap []byte) []string

ComputeSignersPublicKeys will extract from the provided consensus group slice only the strings that matched with the bitmap

func NewHeaderIntegrityVerifier

func NewHeaderIntegrityVerifier(
	referenceChainID []byte,
	headerVersionHandler factory.HeaderVersionHandler,
) (*headerIntegrityVerifier, error)

NewHeaderIntegrityVerifier returns a new instance of a structure capable of verifying the integrity of a provided header

Types

type ArgsHeaderSigVerifier

type ArgsHeaderSigVerifier struct {
	Marshalizer             marshal.Marshalizer
	Hasher                  hashing.Hasher
	NodesCoordinator        nodesCoordinator.NodesCoordinator
	MultiSigContainer       cryptoCommon.MultiSignerContainer
	SingleSigVerifier       crypto.SingleSigner
	KeyGen                  crypto.KeyGenerator
	FallbackHeaderValidator process.FallbackHeaderValidator
}

ArgsHeaderSigVerifier is used to store all components that are needed to create a new HeaderSigVerifier

type HeaderSigVerifier

type HeaderSigVerifier struct {
	// contains filtered or unexported fields
}

HeaderSigVerifier is component used to check if a header is valid

func NewHeaderSigVerifier

func NewHeaderSigVerifier(arguments *ArgsHeaderSigVerifier) (*HeaderSigVerifier, error)

NewHeaderSigVerifier will create a new instance of HeaderSigVerifier

func (*HeaderSigVerifier) IsInterfaceNil

func (hsv *HeaderSigVerifier) IsInterfaceNil() bool

IsInterfaceNil will check if interface is nil

func (*HeaderSigVerifier) VerifyLeaderSignature

func (hsv *HeaderSigVerifier) VerifyLeaderSignature(header data.HeaderHandler) error

VerifyLeaderSignature will check if leader signature is correct

func (*HeaderSigVerifier) VerifyRandSeed

func (hsv *HeaderSigVerifier) VerifyRandSeed(header data.HeaderHandler) error

VerifyRandSeed will check if rand seed is correct

func (*HeaderSigVerifier) VerifyRandSeedAndLeaderSignature

func (hsv *HeaderSigVerifier) VerifyRandSeedAndLeaderSignature(header data.HeaderHandler) error

VerifyRandSeedAndLeaderSignature will check if rand seed and leader signature is correct

func (*HeaderSigVerifier) VerifySignature

func (hsv *HeaderSigVerifier) VerifySignature(header data.HeaderHandler) error

VerifySignature will check if signature is correct