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Shing Him Ng

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31 commits1 monitored projects7 candidates0 high-risk analyses
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rust-bitcoinRust Bitcoin31 commits7 candidates0 high risk
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Informational 12 AI analysisMessage 38 · Opaque
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Add psbt fuzz target

This commit adds a new automated fuzz-testing target for Partially Signed Bitcoin Transactions (PSBTs) in the rust-bitcoin project. It does not change production behavior, fix a bug, or alter any user-facing API. It only adds test infrastr…

New fuzz target for PSBT parsing and manipulationGuard condition around known panic in Psbt::iter_funding_utxo()Arbitrary trait impls for Xpriv and SighashCache gated by arbitrary feature
390582f4by Shing Him Ng+73−05 files
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Informational 19 AI analysisMessage 45 · Thin
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Implement `Arbitrary` for psbt types

This commit adds optional support for the `arbitrary` crate, a Rust fuzz-testing helper, across several data types in the rust-bitcoin library. It does not change normal runtime behavior; the new code is only compiled when the optional `ar…

Addition of optional third-party dependency (`arbitrary` 1.4.1)Expansion of conditional public API surface via new trait implementationsUse of fallible constructors inside `Arbitrary::arbitrary` with error mapping
37c9fce2by Shing Him Ng+280−117 files
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Informational 15 AI analysisMessage 78 · Adequate
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Migrate from Honggfuzz to libfuzzer

This commit is a maintenance change that switches the project's fuzz testing framework from Honggfuzz to libfuzzer (cargo-fuzz). It updates build files, CI configuration, documentation, and fuzz target source files to use the new framework…

35c0b9d3by Shing Him Ng+603−120644 files
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Low 45 AI analysisMessage 45 · Thin
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Fix bug in `Psbt::spend_utxo` when missing output

This commit fixes a panic (sudden crash) in a Bitcoin transaction-signing helper. The function `spend_utxo` previously assumed that a referenced transaction output always existed, and used unchecked array indexing. If the output was missin…

Unchecked index into `Vec` replaced with bounds-checked `get`Panic-to-error conversion in transaction signing codeRegression test added for malformed/missing UTXO data
164a9a5aby Shing Him Ng+47−11 file
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Low 38 AI analysisMessage 73 · Adequate
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Fix overflow bug in `Weight` constructors

This commit fixes a panic (crash) in two Bitcoin weight-unit conversion helpers when they are called on the maximum possible weight value. The functions now use saturating addition, so instead of overflowing and crashing they return a larg…

Integer overflow in public conversion APIPotential panic on untrusted/malicious max-value weight inputDenial-of-service vector via crafted `Weight::MAX` usage
aa086a0aby Shing Him Ng+4−21 file
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Low 38 AI analysisMessage 85 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Fix overflow during *_ceil FeeRate conversions

This commit fixes a bug in the rust-bitcoin library where three fee-rate conversion functions would crash when given the maximum possible fee rate. The functions round fee rates up to different units, and internally they added a small numb…

Integer overflow in unit conversion helpersPanic/crash on maximum fee-rate inputUse of saturating_add to prevent overflow
dc2de6adby Shing Him Ng+8−31 file
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