Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

Feature request: Add Argon2id support

Open
#61 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Active
Tech stack
c

Research direction

The issue names no files, tests, or entry points, and asks whether the SymCrypt team would consider Argon2id support. Start by reviewing SymCrypt's existing algorithm APIs and contribution guidance, then clarify the supported platforms, API shape, test requirements, and acceptance criteria before implementation can begin.

Written by the indexing model from the issue text.

Description

enhancement

Argon2id is currently recommended by OWASP for password hashing and standardized in RFC 9106.

It would be useful to have an official Argon2id implementation in SymCrypt, especially since .NET currently has no built-in Argon2 support and generally relies on platform cryptographic implementations rather than implementing cryptographic primitives itself.

In dotnet/runtime discussion #117822, the .NET team explained that currently only OpenSSL provides Argon2, while Windows CNG and Apple CryptoKit/CommonCrypto do not. They also noted that support on at least two platforms is generally expected before adding such an algorithm to System.Security.Cryptography.

There is also a long-standing request for Argon2 support in dotnet/runtime#19933.

Adding Argon2id to SymCrypt could therefore help enable first-party support in the Windows cryptography stack and eventually System.Security.Cryptography / ASP.NET Core Identity, while avoiding reliance on third-party cryptographic implementations.

Would Argon2id support be something the SymCrypt team would consider?

Dominant language
C
Stars
890
Forks
91
PR merge metrics
No merged PRs in 30d

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from microsoft/SymCrypt

All issues in microsoft/SymCrypt

Similar issues

More C issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.