PKI

Digital identity framework

PKI stands for public key infrastructure, the system of technologies, policies, and procedures that enables secure electronic communication through encryption and digital signatures.

It relies on pairs of cryptographic keys—one public, one private—to verify identities and protect data.

PKI underpins much of internet security, including HTTPS connections, secure email, and digital certificates that authenticate websites and users.

The company implemented PKI to secure its internal communications.

infrastructure

certificate

Formal written attestation

keys · trust · hierarchy · root · intermediate · signing · verification · authentication · SSL · TLS

certificates

SSL

Web encryption protocol

root · intermediate · leaf · domain · subject · issuer · expiration · renewal · revocation · thumbprint

cryptography

asymmetric

Not identical on both sides

  • RSAPublic-key encryption algorithm
  • keypairLinked cryptographic credentials
  • signatureHandwritten name for verification

hashing · algorithm · handshake · exchange · Diffie-Hellman · cipher · decryption · encoding · cryptographic · entropy

enterprise

VPN

Encrypted network connection

provisioning · enrollment · EST · policy · compliance · audit · recovery · Windows · Microsoft · deployment

governance

audit

Formal accounts examination

standards · regulation · accreditation · assurance · liability

Opposites
cryptographic_approach

PKIPSK

Phase-shift keying

AES · DES

security_posture

PKIcleartext

Unencoded readable information

HTTP · FTP

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Abstract · Rated G