signature

package
v0.25.14-cadence-v0.23... Latest Latest
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Published: May 27, 2022 License: AGPL-3.0 Imports: 3 Imported by: 4

Documentation

Index

Constants

This section is empty.

Variables

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

Functions

func IsDuplicatedSignerIdxError added in v0.23.9

func IsDuplicatedSignerIdxError(err error) bool

IsDuplicatedSignerIdxError returns whether err is an DuplicatedSignerIdxError

func IsInsufficientSignaturesError added in v0.23.9

func IsInsufficientSignaturesError(err error) bool

IsInsufficientSignaturesError returns whether err is an InsufficientSignaturesError

func IsInvalidSignatureIncludedError added in v0.23.9

func IsInvalidSignatureIncludedError(err error) bool

IsInvalidSignatureIncludedError returns whether err is an InvalidSignatureIncludedError

func IsInvalidSignerIdxError added in v0.23.9

func IsInvalidSignerIdxError(err error) bool

IsInvalidSignerIdxError returns whether err is an InvalidSignerIdxError

func NewDuplicatedSignerIdxErrorf added in v0.23.9

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

func NewInsufficientSignaturesErrorf added in v0.23.9

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

func NewInvalidSignatureIncludedErrorf added in v0.23.9

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

func NewInvalidSignerIdxErrorf added in v0.23.9

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

func RandomBeaconThreshold added in v0.23.9

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 added in v0.23.9

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

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

func (DuplicatedSignerIdxError) Error added in v0.23.9

func (e DuplicatedSignerIdxError) Error() string

func (DuplicatedSignerIdxError) Unwrap added in v0.23.9

func (e DuplicatedSignerIdxError) Unwrap() error

type InsufficientSignaturesError added in v0.23.9

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

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

func (InsufficientSignaturesError) Error added in v0.23.9

func (InsufficientSignaturesError) Unwrap added in v0.23.9

type InvalidSignatureIncludedError added in v0.23.9

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

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

func (InvalidSignatureIncludedError) Error added in v0.23.9

func (InvalidSignatureIncludedError) Unwrap added in v0.23.9

type InvalidSignerIdxError added in v0.23.9

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

InvalidSignerIdxError indicates that the signer index is invalid

func (InvalidSignerIdxError) Error added in v0.23.9

func (e InvalidSignerIdxError) Error() string

func (InvalidSignerIdxError) Unwrap added in v0.23.9

func (e InvalidSignerIdxError) Unwrap() error

type SignatureAggregatorSameMessage added in v0.23.9

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 added in v0.23.9

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

func (*SignatureAggregatorSameMessage) Aggregate added in v0.23.9

func (*SignatureAggregatorSameMessage) TrustedAdd added in v0.23.9

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

func (*SignatureAggregatorSameMessage) Verify added in v0.23.9

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

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