openssl / openssl/openssl

Add Russian GOST algorithm support to TLSv1.3

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#23,758 0 comments 0 reactions 0 assignees View on GitHub

@VladGud is already working on this.

Since Dec 3, 2025.

help wanted triaged: feature
Dominant language
C
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Description

TLSv1.3 implementation currently does not support Russian GOST cipher suites TLS_GOSTR341112_256_WITH_KUZNYECHIK_MGM_L, TLS_GOSTR341112_256_WITH_MAGMA_MGM_L, TLS_GOSTR341112_256_WITH_KUZNYECHIK_MGM_S and TLS_GOSTR341112_256_WITH_MAGMA_MGM_S.

Also there are no SN_, OBJ_ and NID_ defines for underlying algorithms Magma MGM and Kuznyechik MGM.

Contributor guide

Open the contributing guide

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.

Research direction

Start by reviewing the TLSv1.3 implementation and the existing SN_, OBJ_, and NID_ definitions for related algorithms. Confirm that all four listed GOST cipher suites are supported and that Magma MGM and Kuznyechik MGM have the requested definitions; the open linked pull request indicates work is already underway.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
cryptography, security
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
20/100

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