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Informational 15 Bitcoin

refactor: use native uUR on tests and simulator

Public commit record

What the developer wrote

Authored by odudex

90/100 · Strong
refactor: use native uUR on tests and simulator

Replace the pure-Python ur/urtypes vendor packages with the uUR CPython
extension built from the bc-ur submodule, so host and device run identical
UR code. Drops the simulator shim that mapped one API onto the other.

Tests now need a C compiler and Python headers.
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context✓ Mentions testing or verification
The short version

What changed, and why it matters

This commit is a routine engineering cleanup: it removes a Python-only compatibility layer (a 'shim') used for testing and simulation, and makes the test environment use the same C-language UR encoder/decoder module that the real hardware device uses. There is no security bug being fixed here; the change is about making tests more realistic and reducing duplicated code.

Recommended action

No security action required. Treat as a normal build/test refactor. Ensure CI has a C compiler and Python development headers available, as noted in the README, so uUR builds successfully.

Security signals we found

No strong security signals were identified.

Risk score

Why this scored 15/100

Our methodology →
Potential impact 0/30
Exploitability 0/25
Stealth signal 0/15
Affected reach 0/15
Confidence 10/10
Evidence quality 5/5
Human-validated context

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