Crate janus_messages

Messages defined by the Distributed Aggregation Protocol with serialization and deserialization support.

Modules

• codec
  Support for encoding and decoding messages to or from the TLS wire encoding, as specified in RFC 8446, Section 3.
• problem_type
• query_type
• taskprov
  Data structures as defined in extension draft-wang-ppm-dap-taskprov.

Structs

• AggregateShare
  DAP protocol message representing a helper’s response to the leader’s request to provide an encrypted aggregate of its share of data for a given batch interval.
• AggregateShareAad
  DAP message representing the additional associated data for an aggregate share encryption operation.
• AggregateShareReq
  DAP protocol message representing a request from the leader to a helper to provide an encrypted aggregate of its share of data for a given batch interval.
• AggregationJobContinueReq
  DAP protocol message representing a request to continue an aggregation job.
• AggregationJobId
  DAP protocol message representing an identifier for an aggregation job.
• AggregationJobInitializeReq
  DAP protocol message representing an aggregation job initialization request from leader to helper.
• AggregationJobResp
  DAP protocol message representing the response to an aggregation job initialization or continuation request.
• AggregationJobStep
  Type representing the step of an aggregation job.
• BatchId
  DAP protocol message representing an ID uniquely identifying a batch, for fixed-size tasks.
• BatchSelector
  DAP protocol message identifying a batch of interest.
• Collection
  DAP protocol message representing a leader’s response to the collector’s request to provide aggregate shares for a given query.
• CollectionJobId
  DAP protocol message representing an identifier for a collection.
• CollectionReq
  DAP protocol message representing a request from the collector to the leader to provide aggregate shares for a given batch.
• Duration
  DAP protocol message representing a duration with a resolution of seconds.
• Extension
  DAP protocol message representing an arbitrary extension included in a client report.
• HpkeCiphertext
  DAP protocol message representing an HPKE ciphertext.
• HpkeConfig
  DAP protocol message representing an HPKE config.
• HpkeConfigId
  DAP protocol message representing an identifier for an HPKE config.
• HpkeConfigList
  DAP protocol message representing a list of HPKE configurations.
• HpkePublicKey
  DAP protocol message representing an HPKE public key.
• InputShareAad
  DAP message representing the additional associated data for an input share encryption operation.
• Interval
  DAP protocol message representing a half-open interval of time with a resolution of seconds; the start of the interval is included while the end of the interval is excluded.
• PartialBatchSelector
  DAP protocol message representing a partial batch selector, identifying a batch of interest in cases where some query types can infer the selector.
• PlaintextInputShare
  DAP protocol message representing the plaintext of an input share.
• PrepareContinue
  DAP protocol message representing a request to continue preparation of a report share for aggregation.
• PrepareInit
  DAP protocol message representing information required to initialize preparation of a report for aggregation.
• PrepareResp
  DAP protocol message representing the response to a preparation step in a VDAF evaluation.
• Query
  Represents a query for a specific batch identifier, received from a Collector as part of the collection flow.
• Report
  DAP protocol message representing a client report.
• ReportId
  DAP protocol message representing an ID uniquely identifying a client report.
• ReportIdChecksum
  Checksum over DAP report IDs, defined in §4.4.4.3.
• ReportMetadata
  DAP protocol message representing client report metadata.
• ReportShare
  DAP protocol message representing one aggregator’s share of a single client report.
• RoleParseError
• TaskId
  DAP protocol message representing an identifier for a DAP task.
• Time
  DAP protocol message representing an instant in time with a resolution of seconds.
• Url
  Wire-representation of an ASCII-encoded URL with minimum length 1 and maximum length 2^16 - 1.

Enums

• Error
  Errors returned by functions and methods in this module
• ExtensionType
  DAP protocol message representing the type of an extension included in a client report.
• FixedSizeQuery
  DAP protocol message representing a fixed-size query.
• HpkeAeadId
  DAP protocol message representing an HPKE AEAD.
• HpkeKdfId
  DAP protocol message representing an HPKE key derivation function.
• HpkeKemId
  DAP protocol message representing an HPKE key encapsulation mechanism.
• PrepareError
  DAP protocol message representing an error while preparing a report share for aggregation.
• PrepareStepResult
  DAP protocol message representing result-type-specific data associated with a preparation step in a VDAF evaluation. Included in a PrepareResp message.
• Role
  DAP protocol message representing the different roles that participants can adopt.