gchq/CyberChef

Operation request: RC5 and RC6 support

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#273 opened on Mar 23, 2018

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 (3 comments) (0 reactions) (0 assignees)JavaScript (34,843 stars) (3,944 forks)batch import
help wantedoperation

Description

Summary

CyberChef currently supports RC4. It would also be useful to support RC5 and RC6.

Contributor guide

Tech stack
javascript
Domain
security
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
JavaScriptCryptography basicsCyberChef operation structure
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
Study the existing RC4 operation implementation in CyberChef (src/core/operations/RC4.mjs). Understand the pattern for registering operations and handling input/output. Then implement RC5 and RC6 encryption and decryption operations following the Wikipedia specifications. Ensure consistency with the codebase and add tests.