fuzz: Make encryption tests for CCrypter roundtrip #34527

1. 
   Chand-ra commented at 7:06 pm on February 6, 2026: none

   Add verification logic to the crypter fuzz target by decrypting the resulting ciphertext from a successful call to Encrypt() or EncryptSecret() and verifying that the output matches the original plaintext.

   This ensures that the encryption/decryption cycle preserves data correctness, rather than just checking for execution crashes.

2. fuzz: Make encryption tests for `CCrypter` roundtrip

   Add verification logic to the `crypter` fuzz target by decrypting
   the resulting ciphertext from a successful call to `Encrypt()` or
   `EncryptSecret()` and verifying that the output matches the
   original plaintext.
   
   This ensures that the encryption/decryption cycle preserves data
   correctness, rather than just checking for execution crashes.

   4a2f787010
3. DrahtBot added the label Fuzzing on Feb 6, 2026
4. 
   DrahtBot commented at 7:06 pm on February 6, 2026: contributor

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5. 
   Chand-ra commented at 7:12 pm on February 6, 2026: none

   Unsure if changes like this are needed. The oracles added are inexpensive enough to not affect fuzzing performance, and they do increase chances of catching a future regression, but there’s no increase in coverage so it might be code churn after all.

   Marking as draft for now.

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Chand-ra DrahtBot

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Fuzzing