Lec 17- Public Key Infrastructure

Key Management

Key:

• Generation
• Verification
• Storage
• Exchange
• Revocation
• Destruction

Digital Signatures

Verifies unique source of data source

DH Key exchange

Provide secure key exchange over untrusted channels

Certificate Authority

Certificate Authority is entity issuing/revocating digital certificates

Digital Certificate

Use of digital certificate is to verify that a user sending message is the one who it claims to be.