Fix base64 payload decoding with whitespace - #1274
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📝 WalkthroughWalkthroughThe agent adds shared whitespace-tolerant Base64 decoding for U-key, V-key, and payload inputs. Tests cover payload and key data containing newlines. ChangesBase64 whitespace support
Priority: ➖ Normal — Impact reflects medium issue severity. Estimated code review effort: 1 (Trivial) | ~5 minutes Severity of issue fixed: Medium Suggested reviewers: Merge Risk: 🔵 Low · up to The agent now accepts whitespace in Base64 payloads and encrypted keys, but only payload whitespace is covered by regression testing. Add encrypted-key whitespace cases to reduce the chance of future regressions. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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Inline comments:
In `@keylime-agent/src/keys_handler.rs`:
- Around line 1099-1100: Extend test_u_or_v_key_payload_with_newline to include
ASCII whitespace appended to both U-key and V-key encrypted_key strings, or add
dedicated cases covering each path. Ensure the regression tests exercise the
encrypted-key handling at both updated U-key and V-key paths rather than only
adding whitespace to the payload.
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keylime-agent/src/keys_handler.rs
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Signed-off-by: Vishwa <muralimvishwa@gmail.com>
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Description
Fixes an issue where the Rust Keylime agent fails to process encrypted payloads when Base64-encoded data contains trailing newline or whitespace characters.
Problem
When a tenant provides payload or key data through the
--payloadand--keyoptions, the Base64-encoded content may contain newline characters. The Rust agent previously passed this data directly to the strict Base64 decoder, causing decoding to fail with an error such as:Invalid byte 10, offset 64Changes
Testing
cargo fmtcargo fmt --checkgit diff --checkThe full test suite could not be executed in the current Windows environment because the TPM dependency (
tss2-sys) requires the native TSS2 library, which is not available in the environment.Related Issue
Fixes #457
Summary by CodeRabbit