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Low 30 Bitcoin

feat(Ripple): Support AccountDelete Transaction

Public commit record

What the developer wrote

Authored by PrisionMike

90/100 · Strong
feat(Ripple): Support AccountDelete Transaction

- Makes Payment and Account Delete mutually exclusive but mandatory fields in RippleSignTx message.
- Tests for regular deletion and cancellation
- Removed passing `description` in menu items in Caesar
- New TR strings added to `en.json`
✓ 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 adds support for a new Ripple transaction type called AccountDelete to Trezor hardware wallets. It is a feature addition, not a security patch. The change lets users sign transactions that delete a Ripple account and send any remaining balance to a chosen destination. The code adds user-facing confirmation screens and enforces that a transaction cannot be both a payment and an account deletion. There is no direct evidence in the commit of a security vulnerability, but any new signing path deserves careful review because bugs could let an attacker trick a user into deleting an account or signing an unintended transaction.

Recommended action

Review the new AccountDelete signing path for correct serialization ordering, field presence checks, and user-interface clarity. Verify that the mutual-exclusion check cannot be bypassed by malformed protobuf input, and confirm that the destination address is validated and chunked consistently with existing payment flows. Consider whether the AccountDelete flow needs an explicit total-value confirmation beyond the fee, since the remaining account balance is not shown.

Security signals we found

01

New transaction signing path added for Ripple AccountDelete

02

Mutual-exclusion check added between payment and account_delete fields

03

User confirmation screens added for account deletion

04

Transaction type constant 21 introduced in serialization

05

Protobuf required/optional flags changed: payment becomes optional, account_delete optional

06

Host library validation added to reject unsupported transaction types and missing fields

Risk score

Why this scored 30/100

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

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