Module zebra_chain::serialization

Consensus-critical serialization.

This module contains four traits: ZcashSerialize and ZcashDeserialize, analogs of the Serde Serialize and Deserialize traits but intended for consensus-critical Zcash serialization formats, and WriteZcashExt and ReadZcashExt, extension traits for io::Read and io::Write with utility functions for reading and writing data (e.g., the Bitcoin variable-integer format).

Modules

• sha256d
  SHA256d, a.k.a., double SHA2, a.k.a., 2 SHA 2 Furious

Structs

• AtLeastOne
  A Vec<T> wrapper that ensures there is at least one T in the vector.
• CompactSize64
  An arbitrary CompactSize-encoded field. Used for flags, arbitrary counts, and sizes that span multiple blocks.
• CompactSizeMessage
  A CompactSize-encoded field that is limited to MAX_PROTOCOL_MESSAGE_LEN. Used for sizes or counts of objects that are sent in network messages.
• DateTime32
  A date and time, represented by a 32-bit number of seconds since the UNIX epoch.
• Duration32
  An unsigned time duration, represented by a 32-bit number of seconds.
• FakeWriter
  A fake writer helper used to get object lengths without allocating RAM.

Enums

• SerializationError
  A serialization error.

Constants

• MAX_PROTOCOL_MESSAGE_LEN
  The maximum length of a Zcash message, in bytes.

Traits

• ReadZcashExt
  Extends Read with methods for writing Zcash/Bitcoin types.
• TrustedPreallocate
  Blind preallocation of a Vec<T: TrustedPreallocate> is based on a bounded length. This is in contrast to blind preallocation of a generic Vec<T>, which is a DOS vector.
• WriteZcashExt
  Extends Write with methods for writing Zcash/Bitcoin types.
• ZcashDeserialize
  Consensus-critical deserialization for Zcash.
• ZcashDeserializeInto
  Helper for deserializing more succinctly via type inference
• ZcashSerialize
  Consensus-critical serialization for Zcash.

Functions

• zcash_deserialize_bytes_external_count
  zcash_deserialize_external_count, specialised for raw bytes.
• zcash_deserialize_external_count
  Deserialize a Vec containing external_count items.
• zcash_deserialize_string_external_count
  zcash_deserialize_external_count, specialised for String. The external count is in bytes. (Not UTF-8 characters.)
• zcash_serialize_bytes
  Serialize a byte vector as a CompactSize number of items, then the items.
• zcash_serialize_bytes_external_count
  Serialize a raw byte Vec without writing the number of items as a CompactSize.
• zcash_serialize_empty_list
  Serialize an empty list of items, by writing a zero CompactSize length. (And no items.)
• zcash_serialize_external_count
  Serialize a typed Vec without writing the number of items as a CompactSize.