ForNeVeR/Fenrir

Migrate to hardened `Sha1` module in the code

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#115 opened on Mar 22, 2025

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buggood first issuehelp wanted

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Description

See several places in the code where the issue number is mentioned: we should migrate to Sha1 module everywhere, and should not use the system's SHA1 provider for anything.

This is because the system SHA1 module is not hardened and thus can return different hashes for some objects.

Contributor guide

Research direction
Identify all instances where the system SHA1 provider is used and replace them with the hardened Sha1 module from the project.
Tech stack
csharp
Domain
backendsecurity
Issue type
Refactor
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.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitF#
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60