tlsfuzzer/tlslite-ng

Use native implementation of HMAC

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#420 opened on Sep 24, 2020

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enhancementhelp wanted

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Description

The built-in hmac module in python performs the initialisation of the HMAC in pure python code. Implement an abstraction layer that uses m2crypto or pyca/cryptography as the concrete implementation. That should speed up handshaking and CBC ciphers a bit.

Contributor guide

Research direction
Investigate the current HMAC implementation in tlslite ng and evaluate how to replace it with m2crypto or pyca/cryptography for faster performance. Look at the handshake and CBC cipher code paths that use HMAC.
Tech stack
python
Domain
backendsecurity
Issue type
Performance
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Pythoncryptography
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50