declare the regtest coin to trezor and bitbox02 devices on regtest, and allow bitbox02 message signing off mainnet
What the developer wrote
Authored by Craig Raw
declare the regtest coin to trezor and bitbox02 devices on regtest, and allow bitbox02 message signing off mainnet
What changed, and why it matters
This commit updates a submodule called 'lark' inside the Sparrow Wallet project. The change appears to be about telling Trezor and BitBox02 hardware wallets how to handle Bitcoin's regtest network (a test-only network) and allowing message signing on the BitBox02 on test networks. The actual code change is not visible in this commit—only the submodule pointer was moved to a newer version. No security issue is directly visible from this commit alone.
Review the actual changes in the lark submodule at commit 824738d3920aa4080d9ddaa35a96c6a53fee52f0 to confirm whether the regtest coin declaration and off-mainnet message signing changes are correct and do not introduce coin-type confusion, network misidentification, or signing of arbitrary messages on unintended networks. Treat this commit as a dependency update requiring downstream validation.
Security signals we found
Submodule pointer update with no visible code diff
Commit message references hardware wallet network/coin declaration changes
Commit message references message signing behavior on non-mainnet networks
Evidence from the diff
The commit is a submodule bump for ‘lark’ from b15a676e592f82914c1bc662481ea8d8f0c90cd0 to 824738d3920aa4080d9ddaa35a96c6a53fee52f0. The commit message indicates the underlying lark changes declare the regtest coin to Trezor and BitBox02 devices when on regtest, and allow BitBox02 message signing off mainnet. The diff itself does not show the actual implementation, so security-relevant behavior must be inferred from the commit title and the referenced submodule contents, which are not supplied.
Changed components
lark submoduleTrezor device integrationBitBox02 device integrationregtest network supportmessage signing functionalityInspect captured patch +1 / −1
### lark
@@ -1 +1 @@
-Subproject commit b15a676e592f82914c1bc662481ea8d8f0c90cd0
+Subproject commit 824738d3920aa4080d9ddaa35a96c6a53fee52f0Why this scored 16/100
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