nspcc-dev / nspcc-dev/neofs-node

Make session storage use proper encryption keys

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#3,426 1 comment 0 reactions 0 assignees View on GitHub

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bug I4 neofs-storage S3 security U4
Dominant language
Go
Stars
38
Forks
51
Avg merge
1d 20h
Merged PRs (30d)
38

Description

Expected Behavior

Private key is not used as a symmetric encryption key.

Current Behavior

#1255 did exactly that.

Possible Solution

We're talking sessions here, so there is an ephemeral key pair, public key can be used along with proper salt for ECDH to generate per-token encryption key.

Steps to Reproduce (for bugs)

Look at the code.

Context

#1255, #3425.

Regression

Not exactly.

Your Environment

  • Version used: 0.47.1

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

Inspect the session-storage implementation and the changes referenced by #1255 and #3425. Determine how the private key is currently used, then verify that session tokens use ephemeral ECDH-derived keys with proper salting and that the private key is not used as a symmetric key.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
backend, cryptography, security
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
35/100

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