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Trezor firmware

Firmware monorepo for Trezor One, Model T, and Safe devices.

BitcoinHardware walletsNormal
Repository coverage

2672 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.

923security candidates311second-pass queue2662AI analyses
322commits · 30 days
552commits · 60 days
1343commits · 180 days
2643commits · 365 days
Backfill bands
Aug 5 → Feb 61298 seen115 candidatesComplete
Feb 6 → Jun 6775 seen58 candidatesComplete
Jun 6 → Jul 6217 seen13 candidatesComplete
Jul 6 → Aug 5360 seen54 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.

66/100 average clarity
481Strong · 80–100
1323Adequate · 60–79
863Thin · 40–59
5Opaque · 0–39
Read the scoring rubric →
Developer activity

Who is changing the project?

Public Git author strings; identities are not independently verified.

DeveloperCommitsCandidatesAnalyzedHigh riskMessage avg.
tychovrahe292104292461
Roman Zeyde578182576272
PrisionMike945994273
Andrew Kozlik712470265
obrusvit21376213164
Jakub Janků22919182
Martin Pastyřík24823173
cepetr19682196059
Ioan Bizău23076230059
M1nd3r20772207071
Lukas Bielesch846784067
Martin Milata17446174063
Analysis record

Published AI watches

Last scanned 14 minutes ago

Informational 15 AI analysisMessage 72 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

test(core/ethereum): EIP-7702 tuple nonce must be non-zero

This commit only changes test data and expected screen fingerprints for Trezor's Ethereum EIP-7702 signing tests. It replaces one test case that used a nonce of 0 with the same scenario using a nonce of 67, because the real-world protocol …

Test-only change with no production code modificationEIP-7702 tuple nonce constraint reflected in test dataExpected UI test hashes regenerated for renamed test vector
76cd2ed4by Roman Zeyde+28−282 files
No security note in commit
Informational 15 AI analysisMessage 85 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

build(core): propagate emulator feature from projects

This commit is a build-system cleanup for the Trezor firmware's Rust code. It changes how the 'emulator' feature flag is passed between different software components. The firmware project no longer supports the emulator feature (which make…

5642074cby matejcik+5−44 files
No security note in commit
Low 27 AI analysisMessage 93 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(core): digest EIP-1559/EIP-7702 magic without RLP encoding

This commit is a small internal cleanup in Trezor's Ethereum signing code. It changes how two special 'magic' bytes (the transaction type markers for newer Ethereum transaction formats) are fed into the cryptographic hash. Previously the c…

Refactor of cryptographic hashing path for Ethereum transaction signingRemoval of implicit assumption that RLP encodes small integers as single bytesChange affects EIP-1559 and EIP-7702 transaction type markers
2362bc6fby Roman Zeyde+6−32 files
No security note in commit
Informational 15 AI analysisMessage 98 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

test(core): test RLP self-encoding bytestrings

This commit only adds a new unit test to the Trezor firmware codebase. It verifies that very short Ethereum RLP-encoded byte strings and small positive integers encode to themselves, which is a known property of the RLP specification. No p…

41538733by Roman Zeyde+16−01 file
No security note in commit
Informational 18 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

chore(core): remove sha1 from regular FW

This commit removes the SHA-1 hashing function from the regular Trezor firmware. SHA-1 is an old, weak hash algorithm that is no longer considered secure for sensitive uses. The change deletes the code that exposes SHA-1 to apps running on…

Removal of a deprecated cryptographic primitive (SHA-1) from the firmware API surfaceReduction of attack surface and prevention of future misuse of a collision-vulnerable hashNo direct vulnerability patch or memory-safety bug is present in the diff
16d15774by M1nd3r+0−2006 files
No security note in commit
Low 27 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): pass static public key to `noise_xxpsk3_*_init()`

This commit changes how a cryptographic library sets up secure connections. Previously, the code automatically calculated the public key from the private key. Now, the caller must provide the public key directly. This is a code-quality ref…

Cryptographic key handling changed: public key is now supplied rather than derivedPotential reduction of key-mismatch risk if caller provides correct public keyNew null-pointer check added for static_public_key
1b3128a4by Ondřej Vejpustek+20−92 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): change order of parameters

This commit simply reorders the arguments of an internal function called dh() and updates every place that calls it. The actual math and security behavior are unchanged; it is a code cleanup with no security effect.

33a119eeby Ondřej Vejpustek+15−151 file
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): prefix enums

This commit simply renames two groups of internal status labels (called enums) in the Trezor firmware's cryptographic code. The old names like WAITING_FOR_REQUEST1 were shared between two different parts of the code, so the developer gave …

f1c74046by Ondřej Vejpustek+26−222 files
No security note in commit
Low 37 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

fix(crypto): prevent calling `memzero(NULL, ...)`

This commit fixes three places in the Trezor firmware's cryptographic code where a memory-clearing function could be called with a NULL pointer. In practice, passing NULL to memzero is harmless on Trezor's platform (it does nothing), but i…

NULL pointer passed to memory-zeroing helper in cryptographic codeUndefined behavior in C standard library contractDefensive hardening in Noise protocol implementation
0394e934by Ondřej Vejpustek+11−51 file
No security note in commit
Informational 18 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): return remote static key from `noise_xxpsk3_*_handle_*()`

This commit is a code cleanup (refactor) for the cryptographic handshake code used in Trezor devices. It changes how the other party's long-term public key is returned to the caller: instead of storing it inside an internal state structure…

Removal of long-term public key storage from internal handshake stateCaller-supplied output buffer for remote static public key reduces internal secret retentionError-path memzero of returned key material on failure
3ead1aa6by Ondřej Vejpustek+79−423 files
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): rename ProjectProfile to ProjectConfig

This commit is a simple rename from 'ProjectProfile' to 'ProjectConfig' in two Rust source files. It only changes variable names, struct names, and error messages. There is no change to program logic, security behavior, or how data is hand…

581b37bcby cepetr+18−182 files
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): introduce ResolvedBuildArgs

This commit is a straightforward internal code refactor in Trezor's build tooling. It introduces a new ResolvedBuildArgs structure that centralizes default values for command-line build options before they are used. There is no change to u…

c24d1be8by cepetr+99−295 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): make build args tristate

This commit is a straightforward internal refactor of the Trezor firmware build tool's command-line argument handling. It changes many on/off flags from plain booleans to optional booleans so they can explicitly be set to true, false, or l…

271e249aby cepetr+57−561 file
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): introduce build options

This commit is a straightforward internal code reorganization in Trezor's build tooling. It moves build-option definitions from one Rust source file to a new module and adds the ability to load those options from a configuration file. Ther…

75085e2aby cepetr+275−2007 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(xtask): introduce build presets

This commit is a developer tooling change for the Trezor firmware build system. It introduces 'build presets'—named configuration bundles stored in TOML files—so developers can select common build settings with a single command-line flag i…

eefe8f7fby cepetr+397−419 files
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(xtask): upgrade manifest.yaml for tf-tools 0.3.0

This commit is a routine update to a build-system manifest file used by Trezor's internal tooling. It reorganizes and re-labels feature flags (for example, moving options between 'Features', 'Debugging', and 'Signing' groups and simplifyin…

57b28b89by cepetr+86−1351 file
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(core): add tf-tools 0.3.1+ configuration file

This commit adds a single configuration file for a Trezor developer tool (a VS Code extension). It only points the tool to existing folders in the repository and contains no executable code, no secrets, and no changes to firmware behavior.…

e554f618by cepetr+8−01 file
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): rename ResolvedBuild to ResolvedBuildFeatures

This commit is a simple internal code cleanup: it renames a Rust data structure called ResolvedBuild to ResolvedBuildFeatures and updates the places that use it. There are no functional changes, no security fixes, and no changes to how the…

aaa2780bby cepetr+5−52 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

fix(core): fix up clippy warnings in storage.rs

This is a tiny code cleanup commit that replaces two calls to `ptr::null()` with Rust's `unwrap_or_default()` to silence automated Clippy lint warnings. It does not change what value is produced (still a null pointer when no salt is provid…

62354461by cepetr+2−21 file
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): simplify dependencies

This commit is a straightforward internal code cleanup in Trezor's build tooling. It moves a data structure and two helper methods from one Rust source file to another and updates callers accordingly. There is no change to user-facing beha…

6268349fby cepetr+9−193 files
No security note in commit
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Explore captured commits

Expand any commit for its author, full message, clarity score, changed files, triage signals, analysis, and source link.

AI review queuedchore(tests): add test for back from amountby Ioan Bizău · 25a0c80a · Nov 25, 2025 · 2 filesMessage 67 · AdequateInformational 15Details
Commit message · Ioan Bizău

chore(tests): add test for back from amount

[no changelog]

67/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Mentions testing or verification! No meaningful explanatory body
Why it was queued
signing or wallet pathsecond-pass: security-sensitive path
AI analysis · Informational 15/100

This commit only adds a new automated test for the Trezor hardware wallet. It simulates a user pressing the 'back' button while confirming a Bitcoin transaction amount, then completing the transaction normally. There is no change to the actual wallet firmware or production code, so it does not introduce or fix any security issue on its own.

Lower-prioritychore: update fixturesby Ioan Bizău · 101a277c · Nov 25, 2025 · 1 fileMessage 40 · ThinInformational 15Details
Commit message · Ioan Bizău

chore: update fixtures

[no changelog]

40/100 · ThinMessage clarity
✓ Subject identifies a change✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only updates expected test result fingerprints (hashes) in a UI test fixtures file and adds one new test case entry. It does not change any firmware, application, or cryptographic code. There is no indication of a security fix or vulnerability.

Lower-prioritychore(tests): visit menu items in info flowby Ioan Bizău · a867fa67 · Nov 25, 2025 · 2 filesMessage 67 · AdequateInformational 15Details
Commit message · Ioan Bizău

chore(tests): visit menu items in info flow

[no changelog]

67/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Mentions testing or verification! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only renames an internal test helper method from `_visit_menu_items` to `visit_menu_items` and adds a few calls to it in automated test scripts. It does not change any production firmware or device behavior. There is no security issue here.

Security candidatechore: bump versionsby Roman Zeyde · 815d0b41 · Nov 24, 2025 · 9 filesMessage 55 · ThinInformational 15Details
Commit message · Roman Zeyde

chore: bump versions

core -> 2.9.6
secmon -> 1.0.5

[no changelog]

55/100 · ThinMessage clarity
✓ Subject identifies a change✓ Uses a recognizable type or scope✓ Provides an explanatory body
Why it was queued
signing or wallet pathboot or update path
AI analysis · Informational 15/100

This commit only updates version numbers and translation metadata. It changes the firmware version from 2.9.5 to 2.9.6, the secure monitor version from 1.0.4 to 1.0.5, and updates translation file headers and their signed metadata. There are no code changes that affect security or functionality.

Security candidatechore(core, tools, common): improve type annotation, resolve issuesby M1nd3r · 78487cee · Nov 21, 2025 · 82 filesMessage 62 · AdequateInformational 15Details
Commit message · M1nd3r

chore(core, tools, common): improve type annotation, resolve issues

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
seed or entropy pathsigning or wallet pathboot or update path
AI analysis · Informational 15/100

This is a large cleanup commit that improves Python type annotations and fixes minor code-quality issues across build tools, helper scripts, and test utilities. It does not change any security-critical firmware behavior, cryptographic operations, or device-facing code. There is no indication this commit fixes a security vulnerability.

Lower-prioritychore(core): use `flake8` style check for all PY_FILESby M1nd3r · 6a392ad9 · Nov 21, 2025 · 2 filesMessage 62 · AdequateInformational 15Details
Commit message · M1nd3r

chore(core): use `flake8` style check for all PY_FILES

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This is a routine housekeeping change to the project's code-style tooling. It removes a special 'limited' flake8 pass and makes all Python files follow the same style rules. There is no change to the actual wallet firmware or any user-facing behavior.

Lower-prioritychore(test): run `pyright_tool` for `common` and `tools`by M1nd3r · 2111ad8a · Nov 21, 2025 · 3 filesMessage 72 · AdequateInformational 15Details
Commit message · M1nd3r

chore(test): run `pyright_tool` for `common` and `tools`

[no changelog]

72/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Mentions testing or verification! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only changes how the project runs its internal Python type-checking tool (Pyright). It expands type-checking coverage to more folders and adds a Makefile shortcut. There is no change to the actual wallet firmware, cryptography, or any user-facing behavior, so it has no security relevance.

Lower-prioritychore(ci): remove obsolete `test_python_support`by M1nd3r · 6d44bb43 · Nov 21, 2025 · 3 filesMessage 57 · ThinInformational 15Details
Commit message · M1nd3r

chore(ci): remove obsolete `test_python_support`

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit simply removes an outdated automated test that checked whether some Python helper scripts were compatible with old Python versions (3.7–3.9). It does not change any wallet, firmware, or security-sensitive code. There is no indication this is a security fix or that it introduces a vulnerability.

Lower-priorityfix(tests,eckhart): visit the whole flowby Ioan Bizău · da6c667b · Nov 21, 2025 · 1 fileMessage 82 · StrongInformational 15Details
Commit message · Ioan Bizău

fix(tests,eckhart): visit the whole flow

`press_yes` used to kill the flow so we would never visit the amount
screen.

[no changelog]

82/100 · StrongMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body✓ Mentions testing or verification
AI analysis · Informational 15/100

This is a minor test-only fix for the Trezor firmware test suite. It changes how a simulated user navigates through a device setup screen during automated testing so that the test visits an additional on-screen amount confirmation page. It does not change any production firmware code, cryptographic logic, or user-facing behavior, and there is no indication it fixes a security vulnerability.

Lower-prioritychore: update fixturesby Ioan Bizău · 9f0a5dc1 · Nov 21, 2025 · 1 fileMessage 40 · ThinInformational 15Details
Commit message · Ioan Bizău

chore: update fixtures

[no changelog]

40/100 · ThinMessage clarity
✓ Subject identifies a change✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only updates expected test result hashes (called 'fixtures') in a single JSON file used for automated user-interface testing. No actual product code, cryptography, or device behavior was changed. It is a routine test-maintenance change with no security relevance on its own.

Security candidatefeat(tests,eckhart): traverse TextScreen menusby Ioan Bizău · a72cd10c · Nov 21, 2025 · 2 filesMessage 67 · AdequateInformational 13Details
Commit message · Ioan Bizău

feat(tests,eckhart): traverse TextScreen menus

[no changelog]

67/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Mentions testing or verification! No meaningful explanatory body
Why it was queued
boot or update path
AI analysis · Informational 13/100

This commit is a test-infrastructure and UI-layout change for the upcoming Trezor Safe 5 (Eckhart layout). It lets automated UI tests detect whether a text screen has an external menu, and it swaps a red cancel menu item for a dedicated themed cancel button. There is no security-relevant behavior change visible in the diff.

Security candidatefix: make default consistentby Ioan Bizău · f7ba427e · Nov 21, 2025 · 2 filesMessage 47 · ThinInformational 15Details
Commit message · Ioan Bizău

fix: make default consistent

[no changelog]

47/100 · ThinMessage clarity
✓ Descriptive subject✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
boot or update path
AI analysis · Informational 15/100

This commit changes the default value of an optional UI parameter called `info` from `True` to `False` in a function that displays confirmation screens on Trezor hardware wallets. The change only affects documentation-style comments and a generated mock file, making the documented default match the actual implementation. There is no direct evidence this fixes a security vulnerability.

Security candidatefix: get rid of warning in non-debug buildby Ioan Bizău · 5b3ee5b8 · Nov 21, 2025 · 1 fileMessage 57 · ThinInformational 13Details
Commit message · Ioan Bizău

fix: get rid of warning in non-debug build

[no changelog]

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
boot or update path
AI analysis · Informational 13/100

This is a minor Rust code cleanup that removes a compiler warning in non-debug builds. The change splits one function into two versions: one for debug builds that sets a test-only flag, and one for release builds that does nothing. There is no security-relevant change to actual device behavior.

Lower-prioritychore: remove experimental markby Ioan Bizău · ee0df062 · Nov 20, 2025 · 1 fileMessage 47 · ThinInformational 15Details
Commit message · Ioan Bizău

chore: remove experimental mark

[no changelog]

47/100 · ThinMessage clarity
✓ Descriptive subject✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit simply removes an 'experimental' label from a test file. It does not change any production code, security behavior, or test logic. There is no security relevance.

Security candidateReapply "chore: remove `GetNonce` and `PaymentRequest` from experimental features"by Ioan Bizău · 858cd181 · Nov 20, 2025 · 24 filesMessage 65 · AdequateInformational 15Details
Commit message · Ioan Bizău

Reapply "chore: remove `GetNonce` and `PaymentRequest` from experimental features"

This reverts commit 366580dcb6c42df526854010e03dfe6a30f983f1.

65/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides an explanatory body
Why it was queued
nonce handlingcryptography-sensitive pathsigning or wallet path
AI analysis · Informational 15/100

This commit removes the 'experimental' label from two existing Trezor features—PaymentRequest (used in several cryptocurrency transaction flows) and GetNonce (a management message). It also removes the need to enable an 'experimental features' flag to use them. The change is a feature graduation, not a security fix. There is no evidence in the commit of a vulnerability being patched.

Security candidatefix(python): remove ecdsa dependency, use cryptographyby Pavol Rusnak · fdc9976d · Nov 20, 2025 · 2 filesMessage 62 · AdequateLow 32Details
Commit message · Pavol Rusnak

fix(python): remove ecdsa dependency, use cryptography

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
boot or update path
AI analysis · Low 32/100

This commit swaps out the 'ecdsa' Python library for the more widely used 'cryptography' library when verifying digital signatures on Trezor legacy firmware updates. It is a maintenance-style dependency change. There is no direct evidence in the commit that it fixes an active security vulnerability, but moving away from the older 'ecdsa' package reduces long-term supply-chain and implementation risk.

Lower-prioritychore(python): regenerate uv.lockby Pavol Rusnak · 82aaadc5 · Nov 20, 2025 · 1 fileMessage 57 · ThinInformational 15Details
Commit message · Pavol Rusnak

chore(python): regenerate uv.lock

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This is a routine Python dependency lock file update that removes the 'ecdsa' package from the project's dependency list. There is no indication of a security fix, vulnerability, or malicious change in the commit itself.

Lower-prioritybuild(core): enable Tropic by default for non-emulator targetsby Roman Zeyde · cf5f1dc5 · Nov 20, 2025 · 2 filesMessage 85 · StrongInformational 15Details
Commit message · Roman Zeyde

build(core): enable Tropic by default for non-emulator targets

Disable it by default only for at `SConscript.unix` (since currently `emu.py` doesn't start Tropic emulator).

[no changelog]

85/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context
AI analysis · Informational 15/100

This commit changes the default build settings for the Trezor firmware so that a hardware security component called Tropic is enabled by default for real hardware builds, while keeping it disabled only for the software emulator used on PCs. It also removes the explicit default values for disabling Optiga and Tropic from the Makefile, making them optional overrides instead. There is no indication of a security vulnerability or fix in the change itself.

Lower-prioritychore: update fixturesby Ioan Bizău · 99311ab8 · Nov 19, 2025 · 1 fileMessage 40 · ThinInformational 15Details
Commit message · Ioan Bizău

chore: update fixtures

[no changelog]

40/100 · ThinMessage clarity
✓ Subject identifies a change✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only adds new expected screen-shot hashes (called 'fixtures') for an automated user-interface test covering the payment-notification feature. No firmware code, protocol handling, or cryptographic logic was changed. It is a test-data update and does not affect device security.

Lower-priorityfeat: buy crypto with fiatby Ioan Bizău · 7eb46961 · Nov 19, 2025 · 2 filesMessage 57 · ThinLow 27Details
Commit message · Ioan Bizău

feat: buy crypto with fiat

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Low 27/100

This commit adds a new feature to Trezor hardware wallets that lets users confirm on the device when they are buying cryptocurrency with regular money (fiat) through a third-party service. It changes how payment requests are verified and displayed on the device screen. The change removes the requirement that a payment amount be included in the request for these fiat-to-crypto purchases, because the amount being spent is in regular currency rather than cryptocurrency.

Lower-priorityfeat(tests): test payment_notificationby Ioan Bizău · 01414430 · Nov 19, 2025 · 2 filesMessage 57 · ThinInformational 15Details
Commit message · Ioan Bizău

feat(tests): test payment_notification

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Uses a recognizable type or scope✓ Mentions testing or verification! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only adds a new automated test for an existing feature called payment_notification, and makes a small helper function in the test code tolerate missing output data. There is no change to the actual Trezor firmware or to any code that runs on the device. It is a test-only change and does not introduce or fix a security issue.

Lower-prioritychore: handle PaymentNotification messagesby Ioan Bizău · 92dbd257 · Nov 19, 2025 · 1 fileMessage 47 · ThinInformational 15Details
Commit message · Ioan Bizău

chore: handle PaymentNotification messages

[no changelog]

47/100 · ThinMessage clarity
✓ Descriptive subject✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit simply adds a routing entry so that when the Trezor device receives a 'PaymentNotification' message, it knows which internal module to run. There is no visible security fix or vulnerability here—only a new message handler being wired up.

Lower-priorityrefactor: allow payment requests without SLIP44 IDby Ioan Bizău · 2860c8de · Nov 19, 2025 · 4 filesMessage 62 · AdequateLow 32Details
Commit message · Ioan Bizău

refactor: allow payment requests without SLIP44 ID

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Low 32/100

This commit changes how Trezor handles payment requests that are not tied to a specific cryptocurrency coin type. Previously, payment notifications used a placeholder coin ID of 0 (Bitcoin). Now they use a new 'undefined' marker (0xFFFFFFFF). The change also adds a safety check so that refund memos cannot be used when no coin type is defined, because Trezor cannot hold coins of an undefined type. This appears to be a defensive refactor rather than a fix for an active vulnerability, but it removes a potentially misleading use of Bitcoin's coin ID in non-payment contexts.

Lower-priorityfix: raise exceptionsby Ioan Bizău · 0bd5e776 · Nov 19, 2025 · 2 filesMessage 40 · ThinLow 49Details
Commit message · Ioan Bizău

fix: raise exceptions

[no changelog]

40/100 · ThinMessage clarity
✓ Subject identifies a change✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Low 49/100

This commit fixes two places in Trezor's payment-request handling where error objects were created but never actually thrown (missing 'raise'). One missing raise meant a payment request with memos but no nonce would be accepted instead of rejected; the other meant an unknown memo type would be silently ignored instead of rejected. The patch adds the missing 'raise' keywords, refactors nonce handling to support unit testing, and adds tests to confirm the errors are now raised. It is a genuine bug fix, but the practical security impact is bounded because the verifier still checks the cryptographic signature before any payment is approved.

Lower-prioritychore: tighten pylintby Ioan Bizău · 6dd11e86 · Nov 19, 2025 · 1 fileMessage 40 · ThinInformational 15Details
Commit message · Ioan Bizău

chore: tighten pylint

[no changelog]

40/100 · ThinMessage clarity
✓ Subject identifies a change✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only changes the project's Python linter configuration file (.pylintrc) to enable two additional code-quality checks: 'pointless-exception-statement' and 'pointless-statement'. These checks flag code that has no effect, such as an expression or exception object written on its own line without being raised or used. There is no change to the firmware source code, runtime behavior, or any security-sensitive logic. It is a routine tooling/development hygiene change.