SQLite Encryption in Production: Key Management, Migration, and Real-World Use Cases

Production SQLite encryption depends primarily on secure key management, careful migration planning, and compliance evidence rather than cipher selection alone. The guidance recommends generating cryptographically random keys, storing them in dedicated secret managers or platform keystores rather than source code, logs, containers, or committed environment files, and retrieving them at runtime with tightly controlled access. Because Turso does not yet support native rekeying, rotations require exporting an encrypted database with its old key, importing it into a new database under a new key, validating it, and accepting a planned downtime window; per-tenant keys can reduce the impact of a single compromise. Migrations from SQLCipher, unencrypted SQLite, and SEE generally follow an export-and-re-encrypt process that should be tested on copies and verified for schema completeness, data counts, application behavior, performance, and key-retrieval failure handling. For regulated HIPAA and PCI-DSS workloads, AES-256-GCM is advised because it is NIST-approved, while SOC2, HIPAA, and PCI-DSS audits commonly require written policies and evidence covering generation, storage, access controls, rotation, and incident response. Encryption at rest protects database files, backups, storage media, and tampering through AEAD authentication, but it does not prevent SQL injection, memory extraction, compromised application code, transit exposure, or authorization failures, which require separate defenses such as parameterized queries, TLS, access control, and monitoring.

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