Lock Up Your Data: A Guide to Open Source Encryption
Open Source For You, Tuesday, September 22nd, 2026
A guide to open source tools for encrypting data at rest and in transit, plus key management best practices.
The article explains symmetric, asymmetric, and hybrid encryption for protecting data at rest and in transit.
It recommends open source tools like VeraCrypt, LUKS, Cryptomator, and gocryptfs for stored data, and TLS, Let's Encrypt, cert-manager, Istio, Linkerd, OpenSSL, and WireGuard for network traffic.
It stresses coordinating both encryption types to avoid gaps during state transitions, centralizing key management via tools like HashiCorp Vault, and avoiding common failures such as unencrypted logs or backups.
Open source is favored for the transparency gained from public code review.