Jwt hs256#40
Conversation
WalkthroughA new entry was appended to both PCR device and production history JSON files, each containing updated PCR values, timestamps, and signatures. In the Rust source file, the JWT token generation for third-party services was switched from ES256K to HS256 using the Changes
Sequence Diagram(s)sequenceDiagram
participant Caller
participant jwt.rs
participant SecretStore
participant jsonwebtoken
Caller->>jwt.rs: Request JWT token
jwt.rs->>SecretStore: Retrieve (and decrypt) secret
alt Secret found
jwt.rs->>jsonwebtoken: Encode token with HS256
jsonwebtoken-->>jwt.rs: Return encoded token or error
else Secret not found
jwt.rs->>DefaultKeys: Use default keys for token
end
jwt.rs-->>Caller: Return token or error
Poem
✨ Finishing Touches
🪧 TipsChatThere are 3 ways to chat with CodeRabbit:
SupportNeed help? Create a ticket on our support page for assistance with any issues or questions. Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments. CodeRabbit Commands (Invoked using PR comments)
Other keywords and placeholders
CodeRabbit Configuration File (
|
![greptile-apps[bot]](https://avatars.githubusercontent.com/in/867647?s=60&v=4){kind=small}
There was a problem hiding this comment.
PR Summary
Implements HS256 JWT token support for third-party authentication flows while maintaining ES256K for internal use, with corresponding PCR measurement updates across development and production environments.
- Modified
src/jwt.rsto add HS256 JWT token generation with shared secrets, particularly for third-party service compatibility - Updated PCR measurements in
pcrDev.jsonandpcrProd.jsonreflecting the JWT implementation changes - New PCR records added to both
pcrDevHistory.jsonandpcrProdHistory.jsonwith timestamp 1749533068 - PCR1 values remain consistent across all changes, indicating stable system components
5 files reviewed, no comments
Edit PR Review Bot Settings | Greptile
![coderabbitai[bot]](https://avatars.githubusercontent.com/in/347564?s=60&v=4){kind=small}
There was a problem hiding this comment.
Actionable comments posted: 0
🧹 Nitpick comments (1)
src/jwt.rs (1)
22-24: Consider dependency consolidation to avoid JWT library duplication.Adding
jsonwebtokenalongside the existingjwt_compactcreates dependency duplication for JWT functionality. Consider whether thejsonwebtokencrate could be used for all JWT operations to reduce complexity and dependency overhead.
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
⛔ Files ignored due to path filters (2)
pcrDev.jsonis excluded by!pcrDev.jsonpcrProd.jsonis excluded by!pcrProd.json
📒 Files selected for processing (3)
pcrDevHistory.json(1 hunks)pcrProdHistory.json(1 hunks)src/jwt.rs(2 hunks)
⏰ Context from checks skipped due to timeout of 100000ms (2)
- GitHub Check: Clippy
- GitHub Check: Development Reproducible Build
🔇 Additional comments (3)
pcrDevHistory.json (1)
64-71: LGTM - Routine PCR history entry addition.The new PCR history entry follows the established format with valid hex PCR values, Unix timestamp, and base64 signature. This appears to be routine historical data logging.
pcrProdHistory.json (1)
64-71: LGTM - Production PCR history update consistent with dev history.The production PCR entry shares the same timestamp as the corresponding dev history entry, with appropriately different PCR0 and PCR2 values while maintaining the consistent PCR1 value seen across all entries.
src/jwt.rs (1)
211-228:Details
❓ Verification inconclusive
Verify third-party service compatibility requirements and security implications.
The switch from ES256K to HS256 for third-party tokens has important security considerations:
Security trade-off: HS256 uses shared secrets (symmetric) vs ES256K's public/private key pairs (asymmetric). This means the verification party must have access to the signing secret.
Implementation complexity: The codebase now maintains two different JWT signing algorithms, increasing maintenance overhead.
Please verify that:
- Third-party services (like Supabase) specifically require HS256 and cannot accept ES256K tokens
- The security implications of sharing the HMAC secret with third-party services are acceptable
- Consider documenting the rationale for using different algorithms for different token types
🏁 Script executed:
#!/bin/bash # Search for any existing documentation about JWT algorithm requirements fd -e md -e txt -e rst | xargs rg -l -i "jwt|token" | head -5 | xargs rg -i -A 3 -B 3 "hs256|es256|algorithm"Length of output: 18129
Confirm HS256 requirement and document JWT algorithm rationale
I didn’t find any existing documentation in
docs/covering our JWT algorithm choices. Please verify:
- In
src/jwt.rs: confirm that Supabase (or any third-party service you’re targeting) only accepts HS256 custom tokens and cannot validate ES256K.- That sharing the HS256 secret with an external service is acceptable under our security requirements.
- Add or update documentation (e.g. in a new section under
docs/or the README) explaining why we use HS256 for third-party tokens (Supabase) and ES256K for internal user tokens.
1 participant
Summary by CodeRabbit
New Features
Bug Fixes