parallaxsecond / parallaxsecond/rust-tss-esapi

Add marshaling/unmarshaling methods for types that support it

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enhancement medium
Dominant language
Rust
Stars
135
Forks
80
Avg merge
1d 17h
Merged PRs (30d)
5

Description

As mentioned here and here, it would be useful to have types on the interface of, for example, Public to marshal and unmarshal the underlying FFI type (e.g. TPM2B_PUBLIC). This would allow data to be moved between different machines that need to work with the same TPM-specific data structures.

These methods would defer to Tss2_MU_... functions exposed by the tss2-mu library (for which you can see the spec here), and so we can implement them for the types supported by this spec:

  • TPMA_... types
  • TPM_... base types
  • TPMS_... types
  • TPM2B_... types
  • TPMU_... types

I expect these new methods to simply be extensions of the existing types, so adding them won't break the API.

Contributor guide

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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 with the existing interface types, such as Public, and the tss2-mu library functions corresponding to the TPM2B_PUBLIC example. Read the linked TSS Marshaling/Unmarshaling API specification and review support for TPMA_, TPM_, TPMS_, TPM2B_, and TPMU_ types. Done means supported types expose marshaling and unmarshaling methods without breaking the existing API.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
security
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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