Skip to content

fix(token-sdk): harden asset parsing boundaries and enforce audit checks#1418

Open
Madhu18S wants to merge 4 commits into
hyperledger:mainfrom
Madhu18S:main
Open

fix(token-sdk): harden asset parsing boundaries and enforce audit checks#1418
Madhu18S wants to merge 4 commits into
hyperledger:mainfrom
Madhu18S:main

Conversation

@Madhu18S

Copy link
Copy Markdown

Description

This PR brings structural hardening optimizations to the token-sdk reference architecture by addressing variable sign safety disparities and adding defensive runtime validation checks:

  1. Data Boundary Hardening: Refactored token accumulation logic inside balance.go to explicitly parse asset metrics as uint64 via strconv.ParseUint. This aligns perfectly with the unsigned transaction parameter allocations used in transfer.go (Quantity uint64) and systematically eliminates signed integer wrap-around/overflow vulnerabilities (int64).
  2. Interceptor Soundness: Enhanced the AuditView pipeline in audit.go to intercept transactions prior to generating expensive confirmation envelopes, validating that empty or unpopulated transfer actions are actively blocked at the application edge.

Context

I am an active applicant for the Summer 2026 LFX Mentorship for the Fabric Token SDK Sample project. While awaiting the final cohort outcomes, I wanted to transition past basic text documentation updates and introduce clean engineering enhancements directly to the state management layer. I am incredibly eager to dive deeper into the UTXO and cryptographic structures under your guidance!

Madhu18S added 4 commits May 26, 2026 21:46
… interception logic

Signed-off-by: Madhu Sripada <madhu.s.sripada@gmail.com>
Signed-off-by: Madhu18S <madhu.s.sripada@gmail.com>
Signed-off-by: Madhu Sripada <madhu.s.sripada@gmail.com>
@Madhu18S Madhu18S requested a review from a team as a code owner May 26, 2026 17:23
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

1 participant