<aside> <img src="/icons/check_gray.svg" alt="/icons/check_gray.svg" width="40px" /> Digital Certificates are essentially digitally signed electronic documents

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They are used to bind a public key with a user’s identity. Used for individuals, servers, workstations, or devices

There are many types of Digital Certificates:

• Wildcard Certificate
• SAN (Subject Alternate Name) field
• Single-Sided and Dual-Sided Certificates
• Self-Signed Certificates
• Third-Party Certificates

Key Concepts

• Root of Trust
• Certificate Authority (CA)
• Registration Authority (RA)
• Certificate Signing Request (CSR)
• Certificate Revocation List (CRL)
• Online Certificate Status Protocol (OSCP)
• OSCP Stapling
• Public Key Pinning
• Key Escrow Agents
• Key Recovery Agents

Trust in Digital Certificates