openssl/openssl

Pipelining support for TLSv1.3 and Provided Ciphers

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#20,082 opened on Jan 19, 2023

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backlog fixhelp wantedtriaged: feature

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Description

Hi,

We are working on a hardware accelerator, and we use OpenSSL Engine/Provider framework to offload crypto. SSL pipelining feature gives us performance benefits and we are planning to extend pipelining support to TLSv1.3 and provided ciphers.

This feature was mentioned by @mattcaswell in PR #19456 discussion recently. Creating this issue for community feedback before starting our work on it. We are looking forward to submit a PR for review once done.

Contributor guide

Research direction
Study the existing SSL pipelining implementation for TLSv1.2 in the OpenSSL source code. Understand how pipelining interacts with the record layer and handshake. Then analyze the changes needed for TLSv1.3, including the different handshake flow and the use of provided ciphers via providers. Look at the test infrastructure for pipelining to ensure coverage.
Tech stack
c
Domain
backendsecurity
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.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
COpenSSL internalsTLS protocol
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20