signature

Jan 18, 2024

Changes in this version

+ type PublicKeyAggregator struct

+ func NewPublicKeyAggregator(publicKeys []crypto.PublicKey) (*PublicKeyAggregator, error)

+ func (p *PublicKeyAggregator) KeyAggregate(signers []int) (crypto.PublicKey, error)

type SignatureAggregatorSameMessage

+ func (s *SignatureAggregatorSameMessage) HasSignature(signer int) (bool, error)

+ func (s *SignatureAggregatorSameMessage) VerifyAggregate(signers []int, sig crypto.Signature) (bool, crypto.PublicKey, error)

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

Apr 5, 2023

Changes in this version

+ var ErrIdentityPublicKey = errors.New("aggregated public key is identity and aggregated signature is invalid")

Dec 16, 2022

Changes in this version

+ var CollectorTimeoutTag = tag("Collector_Timeout")

+ var ConsensusTimeoutTag = tag("Consensus_Timeout")

Aug 2, 2022

Changes in this version

+ var CollectorVoteTag = tag("Collector_Vote")

+ var ConsensusVoteTag = tag("Consensus_Vote")

+ var DKGMessageTag = tag("DKG_Message")

+ var ExecutionReceiptTag = tag("Execution_Receipt")

+ var RandomBeaconTag = tag("Random_Beacon")

+ var ResultApprovalTag = tag("Result_Approval")

+ var SPOCKTag = tag("SPoCK")

+ func NewBLSHasher(tag string) hash.Hasher

Jun 1, 2022

Changes in this version

+ func IsInvalidSigTypesError(err error) bool

+ func IsInvalidSignerIndicesError(err error) bool

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

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

+ type InvalidSigTypesError struct

+ func (e InvalidSigTypesError) Error() string

+ func (e InvalidSigTypesError) Unwrap() error

+ type InvalidSignerIndicesError struct

+ func (e InvalidSignerIndicesError) Error() string

+ func (e InvalidSignerIndicesError) Unwrap() error

May 25, 2022

Changes in this version

+ const CheckSumLen

+ const SigLen

+ var ErrIllegallyPaddedBitVector = errors.New("index vector padded with unexpected bit values")

+ var ErrIncompatibleBitVectorLength = errors.New("bit vector has incompatible length")

+ var ErrInvalidChecksum = errors.New("index vector's checksum is invalid")

+ var ErrInvalidSignatureFormat = errors.New("signature's binary format is invalid")

+ func CheckSumFromIdentities(identities []flow.Identifier) [CheckSumLen]byte

+ func CompareAndExtract(canonicalList []flow.Identifier, checkSumPrefixedSignerIndices []byte) ([]byte, error)

+ func DecodeDoubleSig(sigData []byte) (crypto.Signature, crypto.Signature, error)

+ func DecodeSigTypeToStakingAndBeaconSigners(signers flow.IdentityList, sigType []byte) (stakingSigners flow.IdentityList, beaconSigners flow.IdentityList, err error)

+ func DecodeSignerIndicesToIdentifiers(canonicalIdentifiers flow.IdentifierList, prefixed []byte) (flow.IdentifierList, error)

+ func DecodeSignerIndicesToIdentities(canonicalIdentities flow.IdentityList, prefixed []byte) (flow.IdentityList, error)

+ func DecodeSingleSig(sigData []byte) (encoding.SigType, crypto.Signature, error)

+ func EncodeDoubleSig(stakingSig crypto.Signature, beaconSig crypto.Signature) []byte

+ func EncodeIdentities(identities []flow.Identifier) []byte

+ func EncodeSignerToIndicesAndSigType(canonicalIdentifiers flow.IdentifierList, stakingSigners flow.IdentifierList, ...) (signerIndices []byte, sigTypes []byte, err error)

+ func EncodeSignersToIndices(canonicalIdentifiers flow.IdentifierList, signerIDs flow.IdentifierList) (signerIndices []byte, err error)

+ func EncodeSingleSig(sigType encoding.SigType, sig crypto.Signature) []byte

+ func IsDecodeSignerIndicesError(err error) bool

+ func PrefixCheckSum(canonicalList []flow.Identifier, signrIndices []byte) []byte

+ func SplitCheckSum(checkSumPrefixedSignerIndices []byte) ([CheckSumLen]byte, []byte, error)

Feb 6, 2022

Changes in this version

+ 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 struct

+ func (e DuplicatedSignerIdxError) Error() string

+ func (e DuplicatedSignerIdxError) Unwrap() error

+ type InsufficientSignaturesError struct

+ func (e InsufficientSignaturesError) Error() string

+ func (e InsufficientSignaturesError) Unwrap() error

+ type InvalidSignatureIncludedError struct

+ func (e InvalidSignatureIncludedError) Error() string

+ func (e InvalidSignatureIncludedError) Unwrap() error

+ type InvalidSignerIdxError struct

+ func (e InvalidSignerIdxError) Error() string

+ func (e InvalidSignerIdxError) Unwrap() error

+ type SignatureAggregatorSameMessage struct

+ 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)

Aug 10, 2021

Changes in this version

+ func EnoughThresholdShares(_ int, _ int) (bool, error)

+ func NewThresholdProvider(_ string, _ encodable.RandomBeaconPrivKey) module.ThresholdSigner

Jul 27, 2021

Changes in this version

+ type EpochAwareSignerStore struct

+ func NewEpochAwareSignerStore(epochLookup module.EpochLookup, keys storage.DKGKeys) *EpochAwareSignerStore

+ func (s *EpochAwareSignerStore) GetThresholdSigner(view uint64) (module.ThresholdSigner, error)

+ type SingleSignerStore struct

+ func NewSingleSignerStore(signer module.ThresholdSigner) *SingleSignerStore

+ func (s *SingleSignerStore) GetThresholdSigner(view uint64) (module.ThresholdSigner, error)

Apr 5, 2021

Changes in this version

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

+ var ErrInvalidFormat = errors.New("invalid signature format")

Sep 29, 2020

Changes in this version

+ type Combiner struct

+ func NewCombiner() *Combiner

+ func (c *Combiner) Join(sigs ...crypto.Signature) ([]byte, error)

+ func (c *Combiner) Split(combined []byte) ([]crypto.Signature, error)