Key Lifecycle: Generate, Store, Rotate, Destroy
Define each phase of the cryptographic key lifecycle and its risks.
The Cryptographic Key Lifecycle
Every key passes through phases: generation → storage → distribution → use → rotation → archival → destruction. Failure at any phase can compromise all data protected by that key.
Phase 1: Key Generation
Keys must be generated from a cryptographically secure random source (CSPRNG). Key length must match algorithm requirements: AES-256, RSA-4096, ECDSA P-256, etc. Never derive keys from low-entropy sources.
All lessons in this course
- Key Lifecycle: Generate, Store, Rotate, Destroy
- HSM Architecture & PKCS#11 Interface
- AWS KMS, GCP Cloud KMS & Azure Key Vault
- Key Escrow, Backup & Recovery Procedures