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libwally-core

Cross-platform wallet primitives for keys, addresses, transactions, PSBT, and Elements.

BitcoinCryptographic librariesSoftware walletsNormal
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Repository coverage

110 commits in the local evidence base

Every captured commit receives deterministic security triage and a separate communication-quality score. Security candidates and broader second-pass signals receive full-patch Ollama analysis.

21security candidates29second-pass queue104AI analyses
6commits · 30 days
17commits · 60 days
76commits · 180 days
101commits · 365 days
Backfill bands
Aug 5 → Feb 622 seen3 candidatesComplete
Feb 6 → Jun 652 seen3 candidatesComplete
Jun 6 → Jul 67 seen0 candidatesComplete
Jul 6 → Aug 514 seen1 candidatesComplete
Commit communication

Does the history explain itself?

Message quality measures whether a commit identifies its scope, purpose, rationale, testing, and supporting references. It does not change the security-severity score.

62/100 average clarity
15Strong · 80–100
48Adequate · 60–79
37Thin · 40–59
10Opaque · 0–39
1security candidate with opaque commit messaging
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Developer activity

Who is changing the project?

Public Git author strings; identities are not independently verified.

DeveloperCommitsCandidatesAnalyzedHigh riskMessage avg.
Jon Griffiths901886159
KY-U111075
Erick Cestari1110100
Ondřej Češka111050
dependabot[bot]707093
pythcoiner201069
Daniel Newton202055
odudex202062
longhutianjie101072
Bruno Garcia100083
Greg Sanders101068
Leonardo Comandini101060
Analysis record

Published AI watches

Last scanned 48 minutes ago

Informational 15 AI analysisMessage 93 · Strong
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

build(deps-dev): bump browserslist in /src/wasm_package

This is a routine automated update by Dependabot that bumps the version of a JavaScript build tool called browserslist, used only in the WebAssembly packaging part of the project. The change only updates version numbers and metadata in a l…

834987a8by dependabot[bot]+65−511 file
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Informational 14 AI analysisMessage 93 · Strong
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

build(deps-dev): bump fast-uri from 3.1.5 to 3.1.7 in /src/wasm_package

This is a routine automated update by Dependabot that bumps the JavaScript helper library fast-uri from version 3.1.5 to 3.1.7 inside the WebAssembly packaging directory. The commit itself only changes a package-lock.json file and does not…

Dependency update for a known URI-parsing libraryfast-uri 3.1.7 is associated with a fix for a malformed-URI parsing issue (CVE-2025-24035)Only package-lock.json changed; no application code modified
05843a61by dependabot[bot]+8−71 file
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Low 40 AI analysisMessage 73 · Adequate
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

psbt: return an error if fetching input_amount when not present

This commit changes a library function so that it now returns an error when a PSBT/PSET input amount is missing, instead of silently returning zero. It also adds a new 'has_input_amount' check so callers can ask whether the value exists be…

API behavior change: missing field now returns error instead of default zeroAdds presence-check accessor to prevent callers from reading unset valuesABI break noted by vendor
fa3a5859by Jon Griffiths+44−108 files
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Low 34 AI analysisMessage 50 · Thin
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

psbt: return an error if fetching output_amount when not present

This commit changes a library function so that it returns an error when asked for an output amount that is not actually present, instead of silently returning zero. This prevents callers from accidentally treating a missing amount as a rea…

API now distinguishes 'missing amount' from 'amount is zero' via explicit error codePresence check (has_amount) is enforced before returning sensitive numeric valueTest updated to assert exception when fetching amount on blinded output
07871406by Jon Griffiths+32−162 files
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Moderate 51 AI analysisMessage 75 · Adequate
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

psbt: reject trailing data when parsing if WALLY_PSBT_PARSE_FLAG_COMPLETE is used

This commit tightens how the library reads PSBT (Partially Signed Bitcoin Transaction) data. It adds a new parsing flag that requires the parser to consume the entire input, and turns that flag on automatically when reading base64-encoded …

New strict-input-consumption parse flag addedBase64 decoder now enforces complete input consumption automaticallyTrailing bytes after a valid PSBT now rejected in COMPLETE mode
3bf543cdby KY-U+26−55 files
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Informational 15 AI analysisMessage 93 · Strong
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

build(deps-dev): bump fast-uri from 3.1.4 to 3.1.5 in /src/wasm_package

This is an automated dependency update by Dependabot that bumps the JavaScript package fast-uri from version 3.1.4 to 3.1.5 inside the WebAssembly packaging directory. The change only updates version numbers and package hashes in package-l…

d3f6adf0by dependabot[bot]+6−61 file
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Low 47 AI analysisMessage 75 · Adequate
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

aes: add missing length check for multi-chunk encrypt/decrypt, with tests

This commit fixes a missing safety check in libwally-core's AES encryption/decryption function. Previously, callers could pass an output buffer smaller than the input data, which could lead to writing past the end of the buffer (a buffer o…

Missing length check enabling potential buffer overflowOut-of-bounds write risk in symmetric crypto routineReported by independent external researcher
e9fed8a4by Jon Griffiths+35−122 files
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Low 36 AI analysisMessage 60 · Adequate
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

java: fix output type for psbt_get_output_amount

This commit fixes a Java language binding bug where a function that reads a Bitcoin transaction output amount was incorrectly declared to return a 'size' type (a memory/length value) instead of an unsigned 64-bit integer. Output amounts in…

Incorrect JNI/SWIG return type for cryptographic/monetary valuePotential integer truncation of PSBT output amountType confusion between size_t and uint64_t in language bindings
aed82410by Jon Griffiths+1−11 file
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Informational 15 AI analysisMessage 73 · Adequate
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

crypto: add ec_public_key_compress to produce a compressed pubkey

This commit adds a new public-key compression function to a cryptographic library and updates the existing decompression function so both can accept already-compressed or already-uncompressed keys as input. It also adds tests and language …

03351cc9by Jon Griffiths+92−1610 files
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Informational 12 AI analysisMessage 55 · Thin
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

tests: add tests for parsing invalid der sigs

This commit only adds new test cases to check that the library correctly rejects malformed cryptographic signatures. It does not change any production code, so by itself it cannot introduce or fix a security vulnerability. It may be relate…

DER signature parsing validation is being exercisedTest vectors include R/S overflow and zero R/S casesNo functional code change in this commit
824e8a33by Jon Griffiths+11−01 file
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Moderate 62 AI analysisMessage 85 · Strong
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

sign: disallow overlong der encodings and zero r or s values

This commit tightens signature validation in a cryptographic library. It now rejects malformed DER-encoded signatures that are longer than allowed, or where one of the signature numbers (R or S) is zero. Previously, the underlying secp256k…

Cryptographic input validation hardeningRejection of overlong DER-encoded ECDSA signaturesRejection of zero R or S signature components
e7894ee6by Jon Griffiths+6−11 file
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Low 33 AI analysisMessage 73 · Adequate
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

descriptor: add derive_bip32_key to derive a given descriptor key

This commit adds a new public API to libwally-core that lets users derive BIP32 keys directly from a parsed Bitcoin/Elements descriptor. It also fixes two consistency bugs in how descriptor keys are looked up: it now correctly routes reque…

New API exposes derivation of private BIP32 keys from descriptors; misuse by callers could leak private key materialSLIP77 blinding keys are returned in the private-key field of an ext_key, which may surprise callers and lead to incorrect handlingRefactoring of generate_script changes the public-key extraction offset logic from a conditional x-only offset to EC_PUBLIC_KEY_LEN - output_len; this is intended to be equivalent but is a sensitive crypto code path
00d26754by Jon Griffiths+234−4911 files
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Informational 13 AI analysisMessage 93 · Strong
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

build(deps-dev): bump fast-uri from 3.1.2 to 3.1.4 in /src/wasm_package

This is an automated update by Dependabot that bumps the JavaScript helper library fast-uri from version 3.1.2 to 3.1.4 inside the WebAssembly packaging directory. It only changes a package-lock.json file and is marked as a development dep…

Dependency version bump of fast-uri (indirect devDependency)No changes to libwally-core native/WASM cryptographic codeNo vendor security advisory or CVE referenced in commit message
c25fc5fdby dependabot[bot]+6−61 file
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Informational 15 AI analysisMessage 38 · Opaque
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

Bump version to 1.5.6

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.

0c41f38fby Jon Griffiths+12−129 files
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Informational 15 AI analysisMessage 45 · Thin
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

update CHANGES.md for release 1.5.6

This commit only updates the project's changelog file (CHANGES.md) to document what is included in the upcoming 1.5.6 release. It does not change any source code, build scripts, tests, or documentation that affects how the software runs. T…

9947fc4eby Jon Griffiths+8−21 file
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Moderate 53 AI analysisMessage 73 · Adequate
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

descriptor: reject nested expressions with unconsumed trailing input

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
f23a1c97by odudex+17−02 files
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Moderate 59 AI analysisMessage 50 · Thin
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

descriptor: require type B for the top level miniscript in sh()/wsh()

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
6f656241by odudex+33−22 files
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Low 44 AI analysisMessage 45 · Thin
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

update CHANGES.md for release 1.5.5

This commit is just a changelog update for libwally-core version 1.5.5. It mentions that the release 'de-optimizes some memcpy calls on x86 to prevent leaks via extended registers.' That wording suggests a security-sensitive fix, but the a…

Changelog entry describes a security-motivated fixMentions prevention of information leaks via CPU extended registersRelates to secure memory handling of cryptographic secrets
d0ac03baby Jon Griffiths+5−01 file
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Informational 15 AI analysisMessage 38 · Opaque
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

Bump version to 1.5.5

This commit is a routine version bump from 1.5.4 to 1.5.5 across build files, documentation, and package metadata. It changes only version strings and the build version constant; no code logic is modified.

78499f00by Jon Griffiths+12−129 files
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Informational 15 AI analysisMessage 67 · Adequate
EP Elements Projectlibwally-core BitcoinCryptographic librariesSoftware wallets

ci: re-enable clear tests

This commit only changes the project's continuous integration (CI) configuration. It re-enables a set of tests called 'clear tests' that were previously disabled in automated build pipelines, and adds a compiler warning suppression for an …

1009497bby Jon Griffiths+4−41 file
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AI review queuedbuild: fix clear sizes and index typeby Jon Griffiths · 1c482b85 · Nov 13, 2025 · 2 filesMessage 57 · ThinLow 35Details
Commit message · Jon Griffiths

build: fix clear sizes and index type

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
signing or wallet pathsecond-pass: security-sensitive path
AI analysis · Low 35/100

This commit fixes two small but meaningful memory-handling bugs in a Bitcoin/Elements cryptographic library. One fix changes a memory-clearing call so it actually wipes the intended structure instead of just a pointer variable. The other changes an index variable from a signed to an unsigned type, preventing a subtle type-related bug when handling special transaction issuance flags. The commit message does not describe these as security fixes, but the memory-clearing fix in particular is the kind of issue that can leave secret key material or sensitive data in memory longer than intended.

AI review queuedelements: fix enable-elements-abi=no buildby Jon Griffiths · 05c3903d · Sep 28, 2025 · 2 filesMessage 45 · ThinInformational 19Details
Commit message · Jon Griffiths

elements: fix enable-elements-abi=no build

45/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
Why it was queued
signing or wallet pathsecond-pass: security-sensitive path
AI analysis · Informational 19/100

This commit fixes compilation errors that occur when libwally-core is built with Elements/Liquid sidechain support disabled (enable-elements-abi=no). It wraps Elements-only code in preprocessor guards and removes an unused variable warning. There is no direct evidence this is a security vulnerability; it is a build-configuration bug fix.

AI review queuedBump version to 1.5.1by Jon Griffiths · a445157d · Aug 20, 2025 · 9 filesMessage 38 · OpaqueInformational 15Details
Commit message · Jon Griffiths

Bump version to 1.5.1

38/100 · OpaqueMessage clarity
✓ Subject identifies a change✓ Names a concrete action or component! No meaningful explanatory body
Why it was queued
second-pass: opaque commit message
AI analysis · Informational 15/100

This commit is a routine version bump from 1.5.0 to 1.5.1. It only changes version numbers in build files, documentation, and package metadata. There are no code changes that affect security or functionality.

AI review queuedchore: fix some typos in commentby longhutianjie · 00af4de3 · Aug 13, 2025 · 5 filesMessage 72 · AdequateInformational 15Details
Commit message · longhutianjie

chore: fix some typos in comment

Signed-off-by: longhutianjie <keplrnewton@icloud.com>

72/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body
Why it was queued
signing or wallet pathsecond-pass: security-sensitive path
AI analysis · Informational 15/100

This commit only fixes spelling mistakes in code comments and test file comments. No program logic, security behavior, or executable code was changed. It cannot affect security in any way.