What is a public key infrastructure (PKI)? The basis of SSL/TLS certificates, digital signatures and more – for digital security and efficiency within companies

Physical security is often underestimated, yet it is the foundation of all corporate security. As a certificate authority and trust service provider, we report from our practical experience on which best practices really prove their worth.

Digital signatures are transforming how banks manage approvals, customer interactions, and compliance processes. But basically only qualified electronic signatures (QES) are legally equivalent to handwritten ones. What about simple (SES) and advanced electronic signatures (AES)—the more flexible, scalable options many institutions prefer?

Digital certificates are not just technical data packages, they certify the identity of the certificate holder. SwissSign therefore offers the option of including an organisation as part of the identity within its certificate product portfolio.

The security protocol "Transport Layer Security" (TLS) for encrypting and authenticating communication with web servers has been revised repeatedly over the last thirty years. The current version is 1.3 - we explain why it is worth upgrading to this new standard.

From secure websites and encrypted emails to digital signatures – every trusted digital identity relies on a Certificate Authority. Acting as the backbone of online trust, CAs verify, confirm, and safeguard identities across the internet, making them essential for secure communication in business, government, and everyday digital life.