signature

Documentation

Index

• Variables
• func IsDuplicatedSignerIdxError(err error) bool
• func IsInsufficientSignaturesError(err error) bool
• func IsInvalidSignatureIncludedError(err error) bool
• func IsInvalidSignerIdxError(err error) bool
• func NewDuplicatedSignerIdxErrorf(msg string, args ...interface{}) error
• func NewInsufficientSignaturesErrorf(msg string, args ...interface{}) error
• func NewInvalidSignatureIncludedErrorf(msg string, args ...interface{}) error
• func NewInvalidSignerIdxErrorf(msg string, args ...interface{}) error
• func RandomBeaconThreshold(size int) int
• type DuplicatedSignerIdxError
  • func (e DuplicatedSignerIdxError) Error() string
  • func (e DuplicatedSignerIdxError) Unwrap() error
• type InsufficientSignaturesError
  • func (e InsufficientSignaturesError) Error() string
  • func (e InsufficientSignaturesError) Unwrap() error
• type InvalidSignatureIncludedError
  • func (e InvalidSignatureIncludedError) Error() string
  • func (e InvalidSignatureIncludedError) Unwrap() error
• type InvalidSignerIdxError
  • func (e InvalidSignerIdxError) Error() string
  • func (e InvalidSignerIdxError) Unwrap() error
• type SignatureAggregatorSameMessage
  • func NewSignatureAggregatorSameMessage(message []byte, dsTag string, publicKeys []crypto.PublicKey) (*SignatureAggregatorSameMessage, error)
  • func (s *SignatureAggregatorSameMessage) Aggregate() ([]int, crypto.Signature, error)
  • func (s *SignatureAggregatorSameMessage) TrustedAdd(signer int, sig crypto.Signature) error
  • func (s *SignatureAggregatorSameMessage) Verify(signer int, sig crypto.Signature) (bool, error)

Variables

var ErrInsufficientShares = errors.New("insufficient threshold signature shares")

Functions

func IsDuplicatedSignerIdxError

func IsDuplicatedSignerIdxError(err error) bool

IsDuplicatedSignerIdxError returns whether err is an DuplicatedSignerIdxError

func IsInsufficientSignaturesError

func IsInsufficientSignaturesError(err error) bool

IsInsufficientSignaturesError returns whether err is an InsufficientSignaturesError

func IsInvalidSignatureIncludedError

func IsInvalidSignatureIncludedError(err error) bool

IsInvalidSignatureIncludedError returns whether err is an InvalidSignatureIncludedError

func IsInvalidSignerIdxError

func IsInvalidSignerIdxError(err error) bool

IsInvalidSignerIdxError returns whether err is an InvalidSignerIdxError

func NewDuplicatedSignerIdxErrorf

func NewDuplicatedSignerIdxErrorf(msg string, args ...interface{}) error

func NewInsufficientSignaturesErrorf

func NewInsufficientSignaturesErrorf(msg string, args ...interface{}) error

func NewInvalidSignatureIncludedErrorf

func NewInvalidSignatureIncludedErrorf(msg string, args ...interface{}) error

func NewInvalidSignerIdxErrorf

func NewInvalidSignerIdxErrorf(msg string, args ...interface{}) error

func RandomBeaconThreshold

func RandomBeaconThreshold(size int) int

RandomBeaconThreshold returns the threshold (t) to allow the largest number of malicious nodes (m) assuming the protocol requires:

m<=t for unforgeability
n-m>=t+1 for robustness

Types

type DuplicatedSignerIdxError

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

DuplicatedSignerIdxError indicates that a signature from the respective signer index was already added

func (DuplicatedSignerIdxError) Error

func (e DuplicatedSignerIdxError) Error() string

func (DuplicatedSignerIdxError) Unwrap

func (e DuplicatedSignerIdxError) Unwrap() error

type InsufficientSignaturesError

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

InsufficientSignaturesError indicates that not enough signatures have been stored to complete the operation.

func (InsufficientSignaturesError) Error

func (e InsufficientSignaturesError) Error() string

func (InsufficientSignaturesError) Unwrap

func (e InsufficientSignaturesError) Unwrap() error

type InvalidSignatureIncludedError

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

InvalidSignatureIncludedError indicates that some signatures, included via TrustedAdd, are invalid

func (InvalidSignatureIncludedError) Error

func (e InvalidSignatureIncludedError) Error() string

func (InvalidSignatureIncludedError) Unwrap

func (e InvalidSignatureIncludedError) Unwrap() error

type InvalidSignerIdxError

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

InvalidSignerIdxError indicates that the signer index is invalid

func (InvalidSignerIdxError) Error

func (e InvalidSignerIdxError) Error() string

func (InvalidSignerIdxError) Unwrap

func (e InvalidSignerIdxError) Unwrap() error

type SignatureAggregatorSameMessage

type SignatureAggregatorSameMessage struct{}

These functions are the non-relic versions of some public functions from the package. The functions are here to allow the build of flow-emulator, since the emulator is built without the "relic" build tag, and does not run the functions below.

func NewSignatureAggregatorSameMessage

func NewSignatureAggregatorSameMessage(
	message []byte,
	dsTag string,
	publicKeys []crypto.PublicKey,
) (*SignatureAggregatorSameMessage, error)

func (*SignatureAggregatorSameMessage) Aggregate

func (s *SignatureAggregatorSameMessage) Aggregate() ([]int, crypto.Signature, error)

func (*SignatureAggregatorSameMessage) TrustedAdd

func (s *SignatureAggregatorSameMessage) TrustedAdd(signer int, sig crypto.Signature) error

func (*SignatureAggregatorSameMessage) Verify

func (s *SignatureAggregatorSameMessage) Verify(signer int, sig crypto.Signature) (bool, error)