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Why your encrypted Database isn't secure: practical attacks against encrypted OSS databases

Talkat linux.conf.au 2022 · 2022-01-14..01-16· [security, databases]
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Shows concrete failures: transparent data encryption protects nothing — SQL injection reads plaintext from an encrypted RDS because the DB decrypts on boot. Demonstrates attacking pgcrypto by running avml memory grab on the host to recover keys and cached psql queries. Exploits deterministic/Rails encrypted_record by matching IVs in WAL/backups and links prescriptions. Re-identifies randomized-encrypted check‑ins by geohashing trajectories, noting four points re-identify 95%, and suggests randomized AES-GCM, homomorphic/order‑revealing approaches and threat modeling.

AI-written summary · about

  1. 0:00Intro
  2. 0:23Practical Attacks on Encrypted Databases
  3. 3:27Transparent Data Encryption
  4. 9:16Direct memory access
  5. 13:37Deterministic Encryption
  6. 15:56Chosen Plaintext Attack
  7. 21:53Reidentification Attack
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