parallaxsecond / parallaxsecond/rust-tss-esapi
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- Dominant language
- Rust
- Stars
- 135
- Forks
- 80
- Avg merge
- 1d 17h
- Merged PRs (30d)
- 5
Description
TPM policy authorization (policy_authorize) can be optimized by caching the VerifiedTicket (so it does not need to be reverified). I am imagining a solution similar to SavedTpmContext with marshall/unmarshall or serde. If somebody can suggest how it should be organized in the file structure, I would be happy to implement it myself and make a PR.
I think I have a pretty simple implementation that converts the tag and hierarchy to integers, and to deserialize takes the SavedVerifiedTicket to a TPMT_TK_VERIFIED. I'm not sure this is the cleanest implementation.
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating policy_authorize, VerifiedTicket, and the existing SavedTpmContext implementation in the repository. Compare its marshall/unmarshall or serde organization with the proposed SavedVerifiedTicket conversion to TPMT_TK_VERIFIED; done means a clean cached representation can be serialized, deserialized, and reused without reverifying the ticket.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- security
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100