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Informational 15 Bitcoin

feat(common): add EIP-7702 authorization signing protobuf definitions

Public commit record

What the developer wrote

Authored by Nicolas Bacca

90/100 · Strong
feat(common): add EIP-7702 authorization signing protobuf definitions

Mark them as experimental for now.

[no changelog]

Co-authored-by: PrisionMike <su.sh2396@gmail.com>
Co-authored-by: Roman Zeyde <roman.zeyde@satoshilabs.com>
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context✓ Names security-relevant behavior explicitly
The short version

What changed, and why it matters

This commit only adds new protocol buffer message definitions for an upcoming Ethereum feature (EIP-7702 authorization signing). It does not contain any actual signing logic, device firmware behavior, or user-interface code. It is a schema-only change and therefore does not introduce a security vulnerability by itself.

Recommended action

No immediate security action required. When the corresponding firmware implementation is later reviewed, ensure the EIP-7702 authorization is parsed and displayed accurately, chain_id and nonce are validated, the delegate address is shown for user confirmation, and replay protection is enforced.

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

Community notes

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