tessera

package module

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Versions in this module

v1

v1.0.2

Feb 16, 2026

Changes in this version

+ const DefaultEntrySizeLimit

v1.0.1

Dec 9, 2025

Changes in this version

+ const DefaultCheckpointRepublishInterval

+ const DefaultWitnessTimeout

+ var ErrPushbackAntispam = fmt.Errorf("antispam %w", ErrPushback)

+ var ErrPushbackIntegration = fmt.Errorf("integration %w", ErrPushback)

type AppendOptions

+ func (o *AppendOptions) WithCheckpointRepublishInterval(interval time.Duration) *AppendOptions

+ func (o AppendOptions) CheckpointRepublishInterval() time.Duration

type WitnessOptions

+ Timeout time.Duration

v1.0.0

Sep 22, 2025

Changes in this version

+ const DefaultAntispamInMemorySize

+ const DefaultGarbageCollectionInterval

type AppendOptions

+ func (o *AppendOptions) WithGarbageCollectionInterval(interval time.Duration) *AppendOptions

+ func (o AppendOptions) GarbageCollectionInterval() time.Duration

+ type Follower interface

+ EntriesProcessed func(context.Context) (uint64, error)

+ Follow func(context.Context, LogReader)

+ Name func() string

type LogReader

+ IntegratedSize func(ctx context.Context) (uint64, error)

type WitnessGroup

+ func NewWitnessGroupFromPolicy(p []byte) (WitnessGroup, error)

v1.0.0-rc3

Sep 8, 2025

v1.0.0-rc2

Aug 28, 2025

v1.0.0-rc1

Jul 30, 2025

v0

v0.2.0

May 29, 2025

Changes in this version

+ const DefaultBatchMaxAge

+ const DefaultBatchMaxSize

+ const DefaultCheckpointInterval

+ const DefaultPushbackMaxOutstanding

+ var ErrPushback = errors.New("pushback")

+ func NewAppender(ctx context.Context, d Driver, opts *AppendOptions) (*Appender, func(ctx context.Context) error, LogReader, error)

+ func NewCertificateTransparencyAppender(a *Appender) func(context.Context, *ctonly.Entry) IndexFuture

+ type AddFn func(ctx context.Context, entry *Entry) IndexFuture

+ type Antispam interface

+ Decorator func() func(AddFn) AddFn

+ Follower func(func(entryBundle []byte) ([][]byte, error)) stream.Follower

+ type AppendOptions struct

+ func NewAppendOptions() *AppendOptions

+ func (o *AppendOptions) WithAntispam(inMemEntries uint, as Antispam) *AppendOptions

+ func (o *AppendOptions) WithBatching(maxSize uint, maxAge time.Duration) *AppendOptions

+ func (o *AppendOptions) WithCTLayout() *AppendOptions

+ func (o *AppendOptions) WithCheckpointInterval(interval time.Duration) *AppendOptions

+ func (o *AppendOptions) WithCheckpointSigner(s note.Signer, additionalSigners ...note.Signer) *AppendOptions

+ func (o *AppendOptions) WithPushback(maxOutstanding uint) *AppendOptions

+ func (o *AppendOptions) WithWitnesses(witnesses WitnessGroup, opts *WitnessOptions) *AppendOptions

+ func (o AppendOptions) BatchMaxAge() time.Duration

+ func (o AppendOptions) BatchMaxSize() uint

+ func (o AppendOptions) CheckpointInterval() time.Duration

+ func (o AppendOptions) CheckpointPublisher(lr LogReader, httpClient *http.Client) func(context.Context, uint64, []byte) ([]byte, error)

+ func (o AppendOptions) EntriesPath() func(uint64, uint8) string

+ func (o AppendOptions) PushbackMaxOutstanding() uint

+ type Appender struct

+ Add AddFn

+ type Driver any

+ type Entry struct

+ func NewEntry(data []byte) *Entry

+ func (e *Entry) MarshalBundleData(index uint64) []byte

+ func (e Entry) Data() []byte

+ func (e Entry) Identity() []byte

+ func (e Entry) Index() *uint64

+ func (e Entry) LeafHash() []byte

+ type Index struct

+ Index uint64

+ IsDup bool

+ type IndexFuture func() (Index, error)

+ type LogReader interface

+ NextIndex func(ctx context.Context) (uint64, error)

+ ReadCheckpoint func(ctx context.Context) ([]byte, error)

+ ReadEntryBundle func(ctx context.Context, index uint64, p uint8) ([]byte, error)

+ ReadTile func(ctx context.Context, level, index uint64, p uint8) ([]byte, error)

+ type MigrationOptions struct

+ func NewMigrationOptions() *MigrationOptions

+ func (o *MigrationOptions) LeafHasher() func([]byte) ([][]byte, error)

+ func (o *MigrationOptions) WithAntispam(as Antispam) *MigrationOptions

+ func (o *MigrationOptions) WithCTLayout() *MigrationOptions

+ func (o MigrationOptions) EntriesPath() func(uint64, uint8) string

+ type MigrationTarget struct

+ func NewMigrationTarget(ctx context.Context, d Driver, opts *MigrationOptions) (*MigrationTarget, error)

+ func (mt *MigrationTarget) Migrate(ctx context.Context, numWorkers uint, sourceSize uint64, sourceRoot []byte, ...) error

+ type PublicationAwaiter struct

+ func NewPublicationAwaiter(ctx context.Context, readCheckpoint func(ctx context.Context) ([]byte, error), ...) *PublicationAwaiter

+ func (a *PublicationAwaiter) Await(ctx context.Context, future IndexFuture) (Index, []byte, error)

+ type Witness struct

+ Key note.Verifier

+ URL string

+ func NewWitness(vkey string, witnessRoot *url.URL) (Witness, error)

+ func (w Witness) Endpoints() map[string]note.Verifier

+ func (w Witness) Satisfied(cp []byte) bool

+ type WitnessGroup struct

+ Components []policyComponent

+ N int

+ func NewWitnessGroup(n int, children ...policyComponent) WitnessGroup

+ func (wg WitnessGroup) Endpoints() map[string]note.Verifier

+ func (wg WitnessGroup) Satisfied(cp []byte) bool

+ type WitnessOptions struct

+ FailOpen bool

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