Module transaction

Expand description

Transactions and transaction-related structures.

Re-exports§

arbitrary: Arbitrary data generation for transaction proptests
auth_digest 🔒: Authorizing digests for Zcash transactions.
compat 🔒: Conversions between Zebra and zcash_primitives transaction types.
hash 🔒: Transaction identifiers for Zcash.
joinsplit 🔒
lock_time 🔒: Transaction LockTime.
memo 🔒
serialize 🔒: Contains impls of ZcashSerialize, ZcashDeserialize for all of the transaction types, so that all of the serialization logic is in one place.
sighash 🔒: Signature hashes for Zcash transactions
unmined 🔒: Unmined Zcash transaction identifiers and transactions.
zip317: An implementation of the [ZIP-317] fee calculations for UnminedTxs:

AuthDigest: An authorizing data commitment hash as specified in ZIP-244.
Hash: A transaction ID, which uniquely identifies mined v5 transactions, and all v1-v4 transactions.
HashType: The different SigHash types, as defined in https://zips.z.cash/zip-0143
JoinSplitData: A bundle of JoinSplit descriptions and signature data.
Memo: A 512-byte (plaintext) memo associated with a note, as described in protocol specification §5.5.
RecordingReader 🔒: An io::Read wrapper that records every byte consumed, for post-parse validation.
SerializedTransaction: A serialized transaction.
SigHash: A Signature Hash (or SIGHASH) as specified in https://zips.z.cash/protocol/protocol.pdf#sighash
SigHasher: A SigHasher context which stores precomputed data that is reused between sighash computations for the same transaction.
Transaction: A Zcash transaction, wrapping zcash_primitives::transaction::Transaction.
UnminedTx: An unmined transaction, and its pre-calculated unique identifying ID.
VerifiedUnminedTx: A verified unmined transaction, and the corresponding transaction fee.
WtxId: A witnessed transaction ID, which uniquely identifies unmined v5 transactions.

LockTime: A Bitcoin-style locktime, representing either a block height or an epoch time.
TxVersion: The set of defined transaction format versions.
UnminedTxId: A unique identifier for an unmined transaction, regardless of version.

MEMPOOL_TRANSACTION_COST_THRESHOLD: The minimum cost value for a transaction in the mempool.
MIN_TRANSPARENT_TX_SIZE: All txs must have at least one input, a 4 byte locktime, and at least one output.
MIN_TRANSPARENT_TX_V4_SIZE: The minimum transaction size for v4 transactions.
MIN_TRANSPARENT_TX_V5_SIZE: The minimum transaction size for v5 transactions.
SPROUT_CIPHERTEXT_SIZE: The size of one Sprout note ciphertext.

deserialize_and_check 🔒: Parses a transaction and runs the parse-time consensus checks that zcash_primitives does not enforce. Both deserialization impls go through this function, so a transaction cannot reach a Transaction value without passing the checks.
sprout_joinsplit_key_proof_and_ciphertexts: Returns the ephemeralKey, proof, and encCiphertexts of a Sprout JoinSplit description.
v4_empty_sapling_value_balance 🔒: Reads the valueBalanceSapling field of a V4 transaction that has no Sapling spends or outputs, from the bytes that were consumed while parsing it.