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Informational 24 Bitcoin

initial policy type related changes from drongo

Public commit record

What the developer wrote

Authored by Craig Raw

45/100 · Thin
initial policy type related changes from drongo
✓ Descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
The short version

What changed, and why it matters

This commit is a large but mechanical rename in the Sparrow Wallet codebase. It replaces the old policy type constants `PolicyType.SINGLE` and `PolicyType.MULTI` with more specific names `PolicyType.SINGLE_HD` and `PolicyType.MULTI_HD`, and adds handling for a new `PolicyType.SINGLE_SILENT_PAYMENTS`. It also updates method calls in the underlying `drongo` library to pass the policy type explicitly. There is no direct evidence in the diff of a security vulnerability being fixed; it reads like preparation for adding silent-payment wallet support. A few import cleanups and one new guard against exporting silent-payment wallets are included.

Recommended action

Treat this as a routine feature/refactoring commit rather than a security patch. Reviewers should verify that the new `SINGLE_SILENT_PAYMENTS` policy type is handled consistently in all code paths (especially signing, export, and address derivation) and that the updated `drongo` dependency does not introduce behavioral changes beyond the enum rename. Run the updated unit tests and perform regression testing on wallet import/export and signing flows.

Security signals we found

01

Large enum rename across wallet import/export, signing, and address derivation paths

02

New policy type `SINGLE_SILENT_PAYMENTS` introduced with limited exporter support

03

Message signing now explicitly restricted to HD single-sig wallets

04

ElectrumPersonalServer export now throws for silent-payment wallets

05

Storage layer now conditionally handles `silentPaymentScanAddress`

Risk score

Why this scored 24/100

Our methodology →
Potential impact 3/30
Exploitability 2/25
Stealth signal 2/15
Affected reach 5/15
Confidence 8/10
Evidence quality 4/5
Human-validated context

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