microsoft / microsoft/CoseSignTool

CoseSign1MessageFactory should verify the returned signature from any signing service actually verifies before returning success

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Dominant language
C#
Stars
54
Forks
27
PR merge metrics
No merged PRs in 30d

Description

In cases where a signing service may return an invalid signature to the CoseSign1MessageFactory, we should ensure that the signature returned isable to validate on the CoseSign1Message before returning success to the caller.

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 at CoseSign1MessageFactory and trace the path that receives a signature from a signing service. Check how the returned signature can be validated on the CoseSign1Message; the work is done when an invalid signature cannot produce a success result.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
cryptography, security
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
52/100

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