Java / Servlet Interview Questions
Types of authentication methods.
There are 4 main types.
- Basic username and password are sent in base64 in HTTP header, sent in cleartext so SSL is needed.
- Digest MD5 digest of credentials (hashed passwords ) are sent.
- Form-Based username/passwords are sent in POST body; need SSL.
- Certifcate-based User sends certificate to the server; very secure and enables Mutual authentication.
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