Will It Vibe?DES / 3DES cipher
Part of Security, which counts for 30% of the overall score. When this check fires it deducts 15 points from that category, once per scan, no matter how many places it turns up.
What it detects
DES (56-bit) is brute-forceable and 3DES is retired; neither should be used for new encryption.
Why it matters
DES uses a 56-bit key that can be brute-forced in hours with modern hardware, and 3DES has been formally retired and is vulnerable to Sweet32 birthday attacks on long sessions. Data encrypted with either can be recovered by a motivated attacker. New systems have no reason to use them.
How to fix it
Use AES-256 in an authenticated mode (GCM, or ChaCha20-Poly1305) with a random IV/nonce per message. Migrate stored ciphertext by decrypting with the old cipher and re-encrypting under AES during a maintenance pass or on next access. Remove the DES/3DES code paths once nothing depends on them.
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