randombit/botan

Feature request: Threefish 1024

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#1,477 opened on Mar 6, 2018

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 (9 comments) (1 reaction) (0 assignees)C++ (654 forks)auto 404
enhancementgood first issuehelp wanted

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Description

This library is really great.

I would like to use it in cooperation with Bouncy Castle, however it lacks Threefish 1024. It would be great to add Threefish in full length (including 1024 bit CMAC ), when the 512 bits variant is already included.

Contributor guide

Research direction
Study the existing Threefish 512 implementation in Botan to understand the pattern for adding new block ciphers. Implement Threefish 1024 following the same interface, including CMAC support. Write tests and verify against test vectors.
Tech stack
c
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.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
C++Cryptography concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30