Enterprise-Grade API Key Encryption with AES-256

September 28, 2025

This release upgrades how EnginifyAI stores your AI provider API keys from basic encoding to enterprise-grade AES-256 encryption. Every stored key is now encrypted with structured metadata, user-specific isolation, and tamper detection. This is a foundational security improvement that protects your credentials at rest while maintaining full backward compatibility — all four providers (OpenAI, Anthropic, Google, and xAI) continue to work without any action required from you.

Infrastructure

• AES-256 encryption for API keys — All stored API keys are now encrypted using AES-256, a widely trusted encryption standard used across the industry for protecting sensitive data. This replaces the previous encoding method with a significantly stronger security layer.
• User-specific encryption isolation — Each user’s API keys are encrypted with user-specific key material, meaning that even in the unlikely event of a data breach, one user’s keys cannot be used to decrypt another user’s credentials.
• Tamper detection — Encrypted keys now include integrity verification metadata. If a stored key is modified outside of the normal encryption pipeline, the system detects the tampering and rejects the key rather than passing through corrupted data.
• Structured encryption metadata — Each encrypted key carries versioning and identification metadata, making it possible to rotate encryption methods in the future without disrupting existing stored keys.
• Zero breaking changes — The upgrade is fully backward compatible. Existing stored keys are handled transparently, and all four AI providers (OpenAI, Anthropic, Google, xAI) continue to function without any user action.