Explain JSP security and authentication.

JSP security and authentication involve implementing measures to ensure secure access and protect sensitive information. Some common techniques include:

• Enforcing secure communication using HTTPS/SSL.
• Implementing authentication mechanisms such as form-based authentication, basic authentication, or custom authentication filters.
• Managing user credentials securely by storing them as hashed and salted values.
• Implementing access control mechanisms based on user roles and permissions.
• Protecting against common web vulnerabilities such as cross-site scripting (XSS) and SQL injection by validating and sanitizing user input.
• Applying security measures like input/output filtering, encryption, and session management.