Vault Encryption, Audit Logging & Compliance for TaskFlow
Use Vault's Transit engine for encryption-as-a-service, rotate and rewrap ciphertext without exposing keys, enable HMAC-protected audit logging, and apply PCI-DSS-aligned backup and retention controls for the TaskFlow platform.
Lab Overview
🛠 Lab from the Platform Engineering Bootcamp. Used in Week 18. Bootcamp landing page: https://academy.tekanaid.com/bootcamps/platform-engineering-bootcamp Parent course(s):
- Week 18: Secrets Management with HashiCorp Vault (slug: secrets-management-vault)
🟡 Beta bootcamp lab. Hands-on instructions, check scripts, and solve scripts are in place. Lab is part of the running TaskFlow project that grows across all 21 weeks of the bootcamp.
Protect TaskFlow's sensitive data with Vault's Transit secrets engine (encryption-as-a-service), where applications send plaintext and receive ciphertext without ever handling key material. You will encrypt and decrypt sensitive values, rotate keys and rewrap ciphertext to the latest version, use data keys for envelope encryption of large payloads, enable an HMAC-protected file audit device, and implement compliance controls for audit retention and data backup on dev-mode Vault.
What You'll Learn
Encrypt and decrypt TaskFlow sensitive data with the Transit engine and recognize that Transit is for reversible encryption, never for passwords (which must be one-way hashed)
Rotate a Transit key to create a new version, confirm old ciphertext still decrypts, and use transit/rewrap to upgrade ciphertext without exposing plaintext
Configure min_decryption_version to retire old key versions
Generate a Transit data key and explain envelope encryption for large payloads, plus convergent/derived encryption for deterministic, searchable ciphertext
Enable a file audit device and verify that request and response sensitive values are stored as HMAC-SHA256 hashes rather than plaintext
Implement audit-log retention expectations (PCI-DSS) and back up Vault data appropriately, distinguishing in-memory dev mode export from production raft snapshots
Technologies Covered
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