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Hybrid Secret & Cache Management Pattern(HSCM)
Multi-tier secure storage architecture combining local device vaults, distant server vaults, and encrypted caching for agentic AI systems
In 30 seconds
- What
- Stores secrets across three tiers: encrypted local device vault, encrypted server vault with KMS, and ephemeral caches with TTL rotation.
- When to use
- Multi-agent systems handling sensitive credentials across devices and servers where compromise of any single tier should not expose all secrets.
- Watch out
- Complexity creates operational burden; misconfigured cache TTL or key rotation can leave stale secrets accessible longer than intended.
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Hybrid Secret & Cache Management Pattern: Overview
Multi-tier secure storage architecture combining local device vaults, distant server vaults, and encrypted caching for agentic AI systems
- Local device vault for edge security
- Distant server vault for centralized secrets
- Cloud KMS integration for key management
- Encrypted local cache with TTL and rotation
- Encrypted distant cache with geographic distribution
- Dynamic secret generation and ephemeral access tokens
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References
The papers, specifications, and repositories this pattern is based on.
- Hoddor - Gatewatcher (2024)
- HashiCorp Vault Enterprise 1.17
- AWS KMS ECDH Support (2024)
- NIST Cybersecurity Framework 2.0
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