This commit is a routine version bump from 1.5.5 to 1.5.6. It only changes version numbers in build files, documentation, and package metadata. There are no code changes that affect security or functionality.
This commit fixes a parsing bug in libwally-core's Bitcoin descriptor handling. Previously, if extra characters appeared after a valid nested expression inside parentheses, the parser silently ignored them. For example, 'wsh(pk(KEY)xyz)' w…
Input validation bypass: parser accepted malformed descriptors with trailing garbageSilent truncation/misinterpretation of user-supplied descriptor stringsPotential for consensus or policy mismatch between systems parsing the same descriptor
This commit tightens validation for Bitcoin descriptors that wrap a miniscript inside sh() (pay-to-script-hash) or wsh() (pay-to-witness-script-hash). Previously, the library accepted any miniscript fragment as the top-level child, even fr…
Input-validation hardening for descriptor parsingRejection of non-top-level miniscript fragments in script wrappersNew negative test vectors for malformed descriptors
This is a test-only cleanup change. It removes a dedicated helper file used to simulate external programs during testing and instead makes the main test program act as that helper when a special environment variable is set. There is no cha…
This commit only changes a code comment in a Zcash-related Rust file. It does not modify any actual program logic, function behavior, or memory-management code. The new comment explains more clearly that certain memory must be freed throug…
This commit rewrites how a Zcash wallet's firmware summarizes batches of migration transactions on its screen. Previously, the code assumed the first message in a batch was an ordinary transaction and all later messages were migration-styl…
UI misrepresentation risk: prior code could summarize non-migration messages as migrations or fail to summarize migration messages placed firstRemoval of position-dependent classification reduces attack surface for batch ordering manipulationShape-based classifier still relies on display metadata (is_mine, is_change) rather than cryptographic authorization, as noted in code comments
This commit adds a new compact review screen for batches of Zcash 'migration' transactions (moving funds from the Orchard pool to the newer Ironwood pool). It also fixes a small user-experience issue: the device will no longer auto-lock wh…
New transaction-parsing path for batch Zcash PCZTs with shape validation and checked arithmeticFallback to full per-message review when compact summary cannot safely represent a childWallet-ownership check on migration Ironwood outputs
This commit fixes a security hygiene issue in the Keystone hardware wallet's Zcash signing code. Previously, secret 'spend authorizing keys' were cached in ordinary memory and could remain there after use. The patch adds explicit memory sc…
Sensitive key material cached in memory without zeroizationUse of zeroize crate to scrub secret scalars on replacement and dropMaybeUninit used to avoid implicit Drop of wrapped secret types
This commit fixes validation of Zcash shielded transaction data on a Keystone hardware wallet. Previously, the device could accept transactions where it could not verify where shielded funds were going, could not read certain encrypted out…
Added ownership check for funded shielded outputs paired with zero-value spendsAdded requirement that all real shielded outputs be decryptable/recoverable before signingFixed Ironwood vs Orchard note-encryption domain selection during output recovery
This commit refactors how Keystone's Zcash firmware checks and parses batches of partially-created shielded transactions (PCZTs). It merges what used to be separate validation and display steps into a single pass, adds a new public functio…
New validation+parse single-pass path for batch PCZTsRecomputes shielded bundle value balance and compares against declared value_sumAdds account-index boundary test (account 1 returns PcztNoMyInputs)
This commit only adds a new GitHub Actions CI workflow that runs automated tests for Zcash-related Rust code when relevant files change. It does not modify any firmware code, cryptographic logic, or user-facing behavior. There is no securi…
This commit is a small performance and code-clarity improvement for Zcash shielded transaction signing in a Keystone hardware wallet firmware component. It moves a repeated transaction-hash calculation out of a per-action loop so it is com…
Eliminates repeated recomputation of shielded transaction sighash inside per-action signing loopReplaces magic byte-slice boundaries for encrypted ciphertexts with named, documented constantsNo change to cryptographic algorithms, data included in hashes, or signature verification logic
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