Module zebra_chain::sapling

Sapling-related functionality.

These data structures enforce the structural validity of Sapling-related consensus-critical objects.

Consensus rule:

These data structures ensure that ZIP-216, canonical Jubjub point encodings, are enforced everywhere where Jubjub points occur, and non-canonical point encodings are rejected. This is enforced by the jubjub crate, which is also used by the redjubjub crate.

Re-exports

• pub use keys::Diversifier;
• pub use output::Output;
• pub use output::OutputInTransactionV4;
• pub use output::OutputPrefixInTransactionV5;
• pub use shielded_data::AnchorVariant;
• pub use shielded_data::FieldNotPresent;
• pub use shielded_data::PerSpendAnchor;
• pub use shielded_data::SharedAnchor;
• pub use shielded_data::ShieldedData;
• pub use shielded_data::TransferData;
• pub use spend::Spend;
• pub use spend::SpendPrefixInTransactionV5;

Modules

• arbitrary 🔒
  Randomised data generation for sapling types.
• commitment 🔒
  Note and value commitments.
• keys
  Sapling key types.
• note 🔒
  Sapling notes
• output
  Sapling Output descriptions, as described in protocol specification §7.4.
• shielded_data
  Sapling shielded data for V4 and V5 Transactions.
• spend
  Sapling spends for V4 and V5 Transactions.
• tree
  Note Commitment Trees.

Structs

• CommitmentRandomness
  The randomness used in the Pedersen Hash for note commitment.
• EncryptedNote
  A ciphertext component for encrypted output notes.
• NotSmallOrderValueCommitment
  A Homomorphic Pedersen commitment to the value of a note, used in Spend and Output descriptions.
• Note
  A Note represents that a value is spendable by the recipient who holds the spending key corresponding to a given shielded payment address.
• NoteCommitment
  Note commitments for the output notes.
• Nullifier
  A Nullifier for Sapling transactions
• ValueCommitment
  A Homomorphic Pedersen commitment to the value of a note.
• WrappedNoteKey
  A ciphertext component for encrypted output notes.