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Martin Milata

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174 commits1 monitored projects46 candidates0 high-risk analyses
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Trezor firmwareTrezor174 commits46 candidates0 high risk
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Informational 15 AI analysisMessage 80 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(core): replace hexlify with bytes.hex()

This is a large but straightforward internal cleanup: the project switched from using the MicroPython `ubinascii` module's `hexlify`/`unhexlify` functions to the standard Python `bytes.hex()` and `bytes.fromhex()` methods. The change remov…

44aa469eby Martin Milata+1334−1383120 files
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Informational 17 AI analysisMessage 70 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(core): use mp_obj_new_str_from_vstr

This is a code cleanup change in Trezor's firmware that swaps one MicroPython internal helper for another. It replaces calls that create byte or string objects from a vstr buffer with newer, purpose-built helpers. The commit message says t…

Refactor only: helper function renames with equivalent semanticsNew str helper adds UTF-8 validation; bytes helper does not validateNo input validation, length, or error-handling changes observed
7ea11191by Martin Milata+72−7433 files
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Informational 15 AI analysisMessage 80 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(core): get rid of the STATIC macro

This commit is a large but purely mechanical code cleanup: it replaces the custom STATIC macro with the standard C keyword static across many MicroPython module files. There is no change to program logic, security boundaries, or behavior. …

053def4cby Martin Milata+789−79757 files
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Informational 22 AI analysisMessage 80 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(core): assorted micropython-1.28.0 fixes

This commit updates Trezor's embedded MicroPython interpreter from an older version to 1.28.0. It pulls in several upstream MicroPython bug fixes, including stricter buffer-size checks for converting integers to bytes, a new stack-safety A…

Synchronizes upstream MicroPython fixes that include buffer-size and stack-safety hardeningPrevents Ctrl+C interruption of frozen boot code, reducing denial-of-service/control-flow risk during bootFixes sys.stdout.buffer.write() return value, which could affect code relying on correct I/O semantics
7ba7879dby Martin Milata+36−4012 files
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Informational 15 AI analysisMessage 80 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(core): fix renamed micropython modules

This commit is a routine code cleanup that updates Trezor firmware to match a newer MicroPython version where built-in module names dropped the 'u' prefix (for example, 'uos' became 'os' and 'ustruct' became 'struct'). It renames imports, …

e1edbee0by Martin Milata+86−11727 files
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Informational 15 AI analysisMessage 50 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

style(core/rust): fix clippy::cast_lossless where possible

This is a code-style cleanup commit in the Trezor firmware's Rust code. It replaces plain `as` type casts with explicit conversion methods like `u32::from(...)`, `i16::from(...)`, and `f32::from(...)` to satisfy the Rust Clippy lint `cast_…

ab5c27eaby Martin Milata+191−18380 files
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Informational 15 AI analysisMessage 72 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

chore: enable pyright for emu.py and scripts in test/

This commit is a routine developer tooling change. It turns on stricter Python type checking (Pyright) for the emulator script and some test helper scripts, and makes small code adjustments so those files pass the new checks. There is no c…

16a7a0b8by Martin Milata+34−259 files
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Low 36 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(core): switch from Python THP implementation to Rust-based one

This commit replaces the Python implementation of Trezor's THP (Trezor Host Protocol) with a Rust-based one. It is a large refactoring that moves channel state management, encryption, packet handling, and handshake logic from Python into a…

Large rewrite of a security-critical transport/encryption protocol (THP)Removal of Python-side buffer-allocation failure paths (now raises `FirmwareError`)Credential length and field truncation now enforced in Python before Rust processing
00ec9a7fby Martin Milata+957−251843 files
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Informational 18 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(core/rust): use ZeroizeOnDrop

This commit is a code cleanup in the Trezor firmware's Rust cryptography code. It replaces hand-written memory-clearing code with a standard library feature called ZeroizeOnDrop. The goal is the same: erase sensitive cryptographic data fro…

Use of zeroize/ZeroizeOnDrop for sensitive cryptographic materialRemoval of manual Drop implementations that zeroized buffersNo functional change to cryptographic operations or memory safety semantics
fdb58ef8by Martin Milata+26−377 files
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Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

chore(rust/trezor-client): update generated files

This commit only regenerates Rust source files from protobuf definitions using a newer version of the protoc compiler (31.1 instead of 3.19.6). The only visible changes are updated version comments and a few reordered bytes inside generate…

9687d464by Martin Milata+33−3327 files
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Informational 15 AI analysisMessage 45 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

style(core): fix rust lints

This commit is a routine code cleanup in the Rust portions of the Trezor firmware. It fixes compiler lint warnings by modernizing syntax (for example replacing manual remainder checks with built-in methods, adding explicit lifetime markers…

e83b727cby Martin Milata+107−11838 files
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Informational 19 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(legacy): send BIP-380 descriptor in GetPublicKey response

This commit adds a new convenience feature to the older Trezor One (legacy) firmware: when you ask the device for a public key, it now also returns a BIP-380 output descriptor string. This is a standardized way to describe how that public …

New C string formatting path using snprintf with length checksNew BIP-380 checksum implementation translated from HWI Python codeDescriptor field enabled in protobuf options (was FT_IGNORE)
529607e8by Martin Milata+205−117 files
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Informational 20 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(core): rust bindings for trezor-crypto primitives needed by THP

This commit adds Rust wrappers around existing low-level cryptographic functions in the Trezor firmware so they can be used by a new feature called THP. It does not appear to fix a known bug or vulnerability. The changes are mostly a refac…

New unsafe FFI bindings to cryptographic primitives (AES-GCM, Curve25519, HMAC-SHA256, SHA-512)Generic Memory<T> helper uses MaybeUninit::zeroed().assume_init() and zeroize_flat_type on C structsPin-based API intended to prevent context structs from moving in memory
db411e96by Martin Milata+1227−2713 files
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Wrong identity?Names can collide and public author strings can be misleading.Contact commitwatch@karma-x.io →