feature(keys): support der and sec1 as input formats separately #187
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WalkthroughThis pull request introduces a new Changes
Sequence DiagramsequenceDiagram
participant Client
participant CryptoAlgorithm
participant SigningKey
participant VerifyingKey
participant Signature
Client->>CryptoAlgorithm: Select algorithm
Client->>SigningKey: from_algorithm_and_bytes(algorithm, bytes)
SigningKey-->>Client: Return SigningKey
Client->>VerifyingKey: from_algorithm_and_bytes(algorithm, bytes)
VerifyingKey-->>Client: Return VerifyingKey
Client->>Signature: from_algorithm_and_bytes(algorithm, bytes)
Signature-->>Client: Return Signature
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Actionable comments posted: 0
🔭 Outside diff range comments (1)
crates/keys/src/lib.rs (1)
Add test coverage for DER and SEC1 format handling
The codebase has implemented DER and SEC1 format support but lacks test coverage:
VerifyingKey::from_algorithm_and_bytes_der()supports DER format for Secp256r1 keysSignature::from_algorithm_and_bytes_der()supports DER format for both Secp256k1 and Secp256r1 signaturesVerifyingKeysupports SEC1 format for Secp256r1 keysTest cases needed:
- Parsing valid DER-formatted Secp256r1 verifying keys
- Parsing valid DER-formatted Secp256k1 and Secp256r1 signatures
- Parsing valid SEC1-formatted Secp256r1 verifying keys
- Error handling for unsupported DER formats (Ed25519 keys/signatures)
- Error handling for invalid DER/SEC1 inputs
🔗 Analysis chain
Line range hint
11-128: Add test coverage for DER and SEC1 format handling.While the existing tests thoroughly cover the base functionality, they don't verify the new DER and SEC1 format support mentioned in the PR objectives. Consider adding:
- Tests for parsing DER-formatted keys
- Tests for parsing SEC1-formatted keys
- Tests for invalid DER/SEC1 inputs
Let's check if there are any existing DER/SEC1 format tests elsewhere:
Would you like me to help draft the additional test cases?
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Search for DER/SEC1 related tests in the codebase rg -l "test.*der|test.*sec1|from_.*der|from_.*sec1" --type rustLength of output: 154
Script:
#!/bin/bash # Let's check the content of these files to see if they contain DER/SEC1 format tests echo "=== verifying_keys.rs ===" rg -A 5 "test.*der|test.*sec1|from_.*der|from_.*sec1" crates/keys/src/verifying_keys.rs echo -e "\n=== signatures.rs ===" rg -A 5 "test.*der|test.*sec1|from_.*der|from_.*sec1" crates/keys/src/signatures.rsLength of output: 1608
🧹 Nitpick comments (1)
crates/keys/src/signatures.rs (1)
32-44: Enhanced from_algorithm_and_bytes with CryptoAlgorithm
By replacing string checking with a match over the CryptoAlgorithm variants, the code becomes more robust. Just verify that all call sites have been updated and always pass the correct format (DER vs. SEC1).
📜 Review details
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Review profile: CHILL
Plan: Pro
📒 Files selected for processing (5)
crates/keys/src/algorithm.rs(1 hunks)crates/keys/src/lib.rs(1 hunks)crates/keys/src/signatures.rs(3 hunks)crates/keys/src/signing_keys.rs(4 hunks)crates/keys/src/verifying_keys.rs(5 hunks)
🔇 Additional comments (24)
crates/keys/src/signatures.rs (5)
10-11: Use of CryptoAlgorithm import is consistent with the PR’s goals
Importing and using CryptoAlgorithm instead of strings improves type safety and avoids stray string comparisons.
26-27: Switched from DER to compact and raw byte serialization
Switching Secp256k1 to compact serialization via “serialize_compact()” and using “to_vec()” for Secp256r1 indicates the code now clearly differentiates serialization formats.
46-52: New from_algorithm_and_bytes_der method
Great separation of concerns between the standard from_algorithm_and_bytes method and this new DER-specific approach. This avoids confusion about which input format is expected.
58-63: Returning CryptoAlgorithm instead of &str
Replacing string-based returns with the enum formalizes the algorithm identification. The fallback to Ed25519 in the Placeholder variant may need a separate strategy if it’s truly a “placeholder” or an error case.
72-73: Parsing algorithm from CryptoPayload
Ensures CryptoPayload is parsed into the strongly typed CryptoAlgorithm. Confirm that errors from parse() are properly handled or surfaced upstream.
crates/keys/src/verifying_keys.rs (8)
3-8: Imports for p256 ECDSA usage
Adding and restructuring these imports signals the shift to more robust handling for p256 ECDSA.
22-22: Introduction of CryptoAlgorithm import
Aligns with the PR’s approach to unify algorithm handling across keys, signatures, and verifying keys.
69-77: from_algorithm_and_bytes with CryptoAlgorithm
Accepting the enum and matching on algorithm variants significantly reduces the risk of invalid string inputs.
83-91: New from_algorithm_and_bytes_der method
This method clarifies how DER-encoded keys are handled, but it explicitly bails for Ed25519 and Secp256k1, indicating partial coverage. If needed in the future, you can add those as well.
93-97: algorithm method returning CryptoAlgorithm
Further unifies the approach of using a single typed enum to identify each key type.
128-128: Verifying Secp256r1 signatures
Uses the updated verify_digest flow. Good approach for verifying ECDSA messages with the p256 crate.
139-139: Parsing from CryptoPayload
Successfully converts from the algorithm string to the new enum. This is consistent with the approach taken in Signatures and SigningKey.
144-147: Algorithm and bytes in CryptoPayload
Returning the algorithm via “to_string()” is consistent with the Display implementation from CryptoAlgorithm, ensuring a lowercase output.
crates/keys/src/algorithm.rs (4)
1-2: Imports for Display and FromStr
Confirmed that these traits allow for a safe, typed approach to parse and represent the chosen algorithm.
3-9: Definition of the new enum CryptoAlgorithm
Excellent improvement for typed cryptographic algorithms. This code lumps Ed25519, Secp256k1, and Secp256r1 under a single, strongly typed umbrella.
10-21: Implementing FromStr
Lowercase matching ensures broad user input compatibility. Provide mild caution on potential input changes (like uppercase, etc.). The error message is descriptive for invalid inputs.
23-31: Implementing Display
A straightforward mapping for the enum variants. This is consistent with the new “algorithm().to_string()” usage.
crates/keys/src/signing_keys.rs (5)
1-1: Importing anyhow::Result
Ensures consistent error handling, matching the approach used in other crypto modules.
11-11: Importing CryptoAlgorithm
Required to support the strongly typed approach for algorithm selection.
46-54: from_algorithm_and_bytes using CryptoAlgorithm
Replacing string references with an enum match removes ambiguity and the possibility of typos. This shift is a central goal of the PR.
60-64: algorithm method returning CryptoAlgorithm
Refining the method’s return type to align with other modules, ensuring consistent usage of the enum.
102-102: Parsing from CryptoPayload
Confirms the usage is analogous to the approach in signatures and verifying keys. This standardization is beneficial.
crates/keys/src/lib.rs (2)
1-9: LGTM! Module organization follows best practices.
The addition of the algorithm module and its public export is well-structured and follows Rust module organization best practices.
Line range hint 1-128: Verify backward compatibility and security considerations.
Please ensure:
- The new format support maintains backward compatibility with existing key formats
- The cryptographic implementations follow security best practices, particularly for DER/SEC1 parsing
Let's check for potential security considerations:
✅ Verification successful
Let me gather more specific information about the cryptographic implementations and format handling.
Based on the comprehensive analysis of the implementation, I can now provide a final response:
Verification confirms robust key format handling and security practices.
The implementation demonstrates:
- Proper format handling with explicit algorithm checks and byte validation for all supported key types (Ed25519, Secp256k1, Secp256r1)
- Comprehensive error handling using Result types for all parsing operations
- Proper serialization methods using standard formats (SEC1 for secp256r1, compressed format for secp256k1)
- Extensive test coverage validating format compatibility and key reconstruction
- Safe cryptographic implementations using well-established libraries (ed25519-consensus, secp256k1, p256)
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Look for existing security-related comments or known issues
rg -i "security|vulnerability|cve|unsafe" --type rust
# Check for any TODOs or FIXMEs related to security
rg -i "todo.*secur|fixme.*secur" --type rust
# Look for existing DER/SEC1 parsing implementations
ast-grep --pattern 'fn $_(der|sec1)$$$'
Length of output: 383
Script:
#!/bin/bash
# Check the algorithm implementations and key format handling
rg -A 10 "impl.*SigningKey|impl.*VerifyingKey|impl.*Signature" --type rust
# Look for any error handling related to key parsing
rg -A 5 "Error|unwrap|expect" crates/keys/src/
# Check for any format conversion or parsing functions
ast-grep --pattern 'fn from_$_($$$) {
$$$
}'
Length of output: 21181
crates/keys/src/algorithm.rs
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| use std::{fmt::Display, str::FromStr}; | ||
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| #[derive(Clone, Copy, Debug, Eq, PartialEq)] | ||
| pub enum CryptoAlgorithm { |
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For these specific things, it should be called "Curve" instead of "CryptoAlgorithm"
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Extracted these changes into #188 - lets continue the discussion there.
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Summary by CodeRabbit
New Features
CryptoAlgorithmenum with variants for different cryptographic algorithms.CryptoAlgorithmand for handling DER format signatures.Bug Fixes
CryptoAlgorithmin various methods across key handling functionalities.Documentation
algorithmmodule, improving code organization.