Cilium vs OpenSSL

Cilium vs OpenSSL: What are the differences?

Developers describe Cilium as "API-aware networking and security for containers". Open source software for providing and transparently securing network connectivity and loadbalancing between application workloads such as application containers or processes. On the other hand, OpenSSL is detailed as "Full-featured toolkit for the Transport Layer Security and Secure Sockets Layer protocols". It is a robust, commercial-grade, and full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols. It is also a general-purpose cryptography library.

Cilium and OpenSSL can be categorized as "Security" tools.

Some of the features offered by Cilium are:

• Identity Based Security - Cilium visibility and security policies are based on the container orchestrator identity (e.g., Kubernetes labels). Never again worry about network subnets or container IP addresses when writing security policies, auditing, or troubleshooting.
• Blazing Performance - BPF is the underlying Linux superpower to do the heavy lifting on the datapath by providing sandboxed programmability of the Linux kernel with incredible performance.
• API-Protocol Visibility + Security - Traditional firewalls only see and filter packets based on network headers like IP address and ports. Cilium can do this as well, but also understands and filters the individual HTTP, gRPC, and Kafka requests that stitch microservices together.

On the other hand, OpenSSL provides the following key features:

• Robust
• Commercial-grade
• Transport Layer Security