Sabayon/community-buildspec

enhancing package hashing

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#2 opened on Mar 16, 2016

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Description

While the method works, https://github.com/Sabayon/community-buildspec/blob/master/scripts/functions.sh#L119 sounds still weak to me. gzip crc is 32bit and is enough for most of packages out there, but this feels still a hack.

Previous attempt to truncate tbz2's xpak data failed, also if the tbz2 where truncated correctly the md5sum of the tbz2 between different builds still was differing.

Contributor guide

Research direction
Investigate alternative hashing methods for package verification, such as using SHA256 instead of gzip CRC32, and evaluate impact on build reproducibility.
Tech stack
shell
Domain
build system
Issue type
Research
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
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.
Needs investigation
Prerequisites
ShellGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20