Public Key Infrastructure
Certificate authorities, digital certificates, and trust chains for authenticating identities and securing network communication.
Core metadata
- ID: public_key_infrastructure
- Era: Modern
- First known date: 1974 (decade)
- Region: Global / multiple regions
- Review status: source_checked
- Maturity: established
Prerequisites
- Encryption (Modern Cryptography, Public Key) (encryption_modern_cryptography_public_key)
- Internet Protocols (TCP/IP, ARPANET) (internet_protocols_tcp_ip_arpanet)
- Software Engineering (software_engineering)
Dependents
- API Economy (api_economy)
- Certificate Transparency Logs (certificate_transparency_logs)
- Cryptographic Agility Platforms (cryptographic_agility_platforms)
- Digital Identity Systems (digital_identity_systems)
- Digital Signatures (digital_signatures)
- Enterprise Cyber Identity (enterprise_cyber_identity)
- Hardware Security Modules (hardware_security_modules)
- Multi-Factor Authentication (multi_factor_authentication)
- Broad Post-Quantum Security Migration (post_quantum_security_migration)
- TLS/SSL Secure Transport (tls_ssl_secure_transport)
Fields
Field lanes
- Cybersecurity & Cryptography: Identity & Trust
Node sources
- Cybersecurity Framework (NIST, 2026, official_agency) • Supports: node, maturity
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 3
- Average edge confidence: 68%
- Prerequisite sources: 3
- expert_inference: 3
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Encryption (Modern Cryptography, Public Key) (encryption_modern_cryptography_public_key) | enabling | 68% | expert_inference | Encryption (Modern Cryptography, Public Key) provides a capability that enables this technology without being the only possible path. |
|
| Internet Protocols (TCP/IP, ARPANET) (internet_protocols_tcp_ip_arpanet) | enabling | 68% | expert_inference | Internet Protocols (TCP/IP, ARPANET) provides a capability that enables this technology without being the only possible path. |
|
| Software Engineering (software_engineering) | enabling | 68% | expert_inference | Software Engineering provides a capability that enables this technology without being the only possible path. |
|
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