Encryption at Rest
Encryption at rest is protecting stored data by encrypting it on disk or in a database, so it is unreadable without the decryption key. For secret vaults, each API key is encrypted with strong algorithms like AES-256-GCM and decrypted only at the moment it is needed.
Technical Architecture & Deep-Dive
Data at rest is exposed through database breaches, misconfigured backups, and insider access. Encryption ensures that a stolen copy of the data is useless without separately protected keys.
Application-level encryption goes further than disk encryption: secrets stay encrypted inside the database itself and are decrypted only in memory at the edge runtime when a pipeline injects them into an upstream request.
Key Architectural Benefits
Implement Encryption at Rest at the Edge
Deploy lightweight API aggregation, edge caching, and secret injection in minutes without Docker containers or complex servers.
Frequently Asked Questions
Q:What is the difference between encryption at rest and in transit?
At rest protects stored data. In transit, typically TLS, protects data moving across networks. Secure systems use both.
Related Architecture Concepts
Edge Secret Injection is a security pattern where sensitive upstream API credentials (e.g. Stripe Secret Keys, OpenAI Tokens) are stored in an encrypted vault and injected into HTTP request headers exclusively at the edge runtime, ensuring client browsers and mobile apps never see or store the keys.
Secret rotation is the practice of periodically replacing API keys, passwords, and other credentials with new values and revoking the old ones. Rotation limits how long a leaked secret remains useful and is required by many security standards.
API audit logging is recording a tamper-resistant history of security-relevant events, such as who called which endpoint, when secrets were created or rotated, and which tokens were revoked. Audit logs support incident investigation, compliance, and accountability.