Authentication Protocol
Noun · Security & Infosec
Definitions
A formal method or protocol used to verify identity and establish trust between parties, such as Kerberos, OAuth flows, or certificate-based schemes. The security properties depend on both the protocol design and the implementation details.
In plain English: A formal method used by systems to verify identity.
Example: "The legacy authentication protocol lacked modern replay protections and strong mutual verification."
Related Terms
- SSO
- Biometric Authentication
- Challenge-Response
- Kerberos
- Mutual Authentication
- OTP Bypass
- Out-of-Band Authentication
- Keycloak
- Account Lockout
- Anti-Replay
- Authentication Factor
- Authentication Token
- Challenge Token
- Credential Cache
- Digital Identity
- Enrollment
- Identity Verification
- Legacy Protocol
- Long-Lived Token
- Masquerade Attack
- Out-of-Band Channel
- Password Recovery
- Password Reset
- Protocol Analysis
- Protocol Security
- Provisioning Security
- Role Mapping