SignServer

SignServer provides a platform for digitally signing code, documents, and timestamps. Signature keys remain secure in a central location, preferably within a Hardware Security Module (HSM), while users authenticate before signing. The software handles multiple signature use cases through plug-ins in a single installation. Integration supports CI/CD pipelines, firmware builds, document workflows, and business applications via standard interfaces. Community edition offers basic services like document, code, and container signing plus timestamping. Enterprise edition adds SLAs, advanced HSM support, and deployment as appliances, SaaS, or cloud.

Core Strengths:

• Centralizes digital signature operations on a server.
• Signs code in multiple formats (e.g., JAR, OpenPGP, Debian).
• Generates timestamps for long-term validation.
• Signs containers and documents.
• Supports post-quantum cryptography options.
• Available as Docker images for easy deployment.