public-private key cryptography

Public-private key cryptography is a foundational security method used in modern authentication systems, including Microsoft Entra ID's passkey support. This cryptographic approach relies on a pair of keys: a public key shared openly and a private key kept secret. It enables secure, phishing-resistant authentication without passwords. On WindowsForum.com, discussions highlight how Microsoft integrates public-private key cryptography into FIDO2 passkeys for enterprise identity management, enhancing security against credential theft. The technology underpins passwordless login, where the private key never leaves the user's device, while the public key verifies identity on the server. This tag covers topics like FIDO2 standards, Microsoft Entra ID updates, and enterprise security improvements related to public-private key cryptography.