The intention for this package is to provide a standard set of Rust bindings for lightwallets

[zancas]

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ZIPs Related to the Lightwallet Protocol

Directly Define the Lightwallet Protocol

• https://zips.z.cash/zip-0307 — Light Client Protocol for Payment Detection. The
  foundational ZIP. Defines CompactTxStreamer gRPC service, CompactBlock,
  CompactTx, and all core RPCs.
• https://zips.z.cash/zip-0314 — Privacy Upgrades to the Zcash Light Client
  Protocol. Reserved/draft — proposed privacy improvements to ZIP 307.

Directly Affect Light Client Data Structures

• https://zips.z.cash/zip-0221 — FlyClient - Consensus-Layer Changes. Adds MMR
  commitments to block headers for logarithmic light client chain verification.
• https://zips.z.cash/zip-0244 — Transaction Identifier Non-Malleability.
  Redesigns hashBlockCommitments for extensibility; digest components explicitly
  aligned with CompactBlock format.

Impact Fees, Memos, and Transaction Format for Light Clients

• https://zips.z.cash/zip-0231 — Memo Bundles. Fixes memo truncation/auth
  weakness in ZIP 307; reduces bandwidth for light wallets.
• https://zips.z.cash/zip-2002 — Explicit Fees. Adds explicit fee field so light
  clients don't need to download transparent inputs.
• https://zips.z.cash/zip-0246 — Version 6 Transaction Digests. Sighash
  structured around CompactBlock-format subsets.
• https://zips.z.cash/zip-0225 — Version 5 Transaction Format. v5 format
  (NU5/Orchard) that light clients must parse.
• https://zips.z.cash/zip-0230 — Version 6 Transaction Format. v6 format
  (NU7/OrchardZSA).

Wallet / Scanning Infrastructure

• https://zips.z.cash/zip-0032 — Shielded HD Wallets. Key derivation for viewing
  keys used in scanning.
• https://zips.z.cash/zip-0310 — Security Properties of Sapling Viewing Keys.
  What information scanning can/cannot reveal.
• https://zips.z.cash/zip-0315 — Best Practices for Wallet Implementations.
  Synchronization, balance reporting, privacy guidance.
• https://zips.z.cash/zip-0316 — Unified Addresses and Unified Viewing Keys.
  Multi-pool scanning and address generation.

Note Decryption / Consensus Rules for Scanning

• https://zips.z.cash/zip-0212 — Recipient-Derived Ephemeral Secret. Changes note
  decryption logic light clients must implement.
• https://zips.z.cash/zip-0213 — Shielded Coinbase. Coinbase outputs in
  commitment tree affect scanning.
• https://zips.z.cash/zip-0216 — Canonical Jubjub Point Encodings. Consensus fix
  affecting trial decryption validation.

Tangentially Related

• https://zips.z.cash/zip-0302 — Standardized Memo Field Format
• https://zips.z.cash/zip-0313 — Reduce Fee to 1000 Zatoshis
• https://zips.z.cash/zip-0317 — Proportional Transfer Fee Mechanism
• https://zips.z.cash/zip-0321 — Payment Request URIs
• https://zips.z.cash/zip-0226 — Transfer/Burn of ZSA
• https://zips.z.cash/zip-0227 — Issuance of ZSA