![Java Authentication initialize() public static void main(String args[]) { LoginContext lc = new LoginContext("Login", new MyCallbackHandler(args[0],args[1])); } login() Callback[] calls=new Callback[2]; calls[0]=new NameCallback("name"); calls[1]=new PasswordCallback("Password",false); callbackHandler.handle(calls);](https://image.slidesharecdn.com/JavaSecAndAuthPres-122991550961-phpapp01/85/Java-Security-And-Authentacation-9-320.jpg)
Java Security And Authentacation
- 1. Java Security Java Authentication & Session Management
- 2. Provided Java Security Java itself A number of providers provided to implement a core set of security features Cryptography packages Secure peer to peer communication protocols Allows custom and 3 rd party providers
- 3. Java Authentication The process of determining the identity of a user Used to restrict access to resources The API’s enable “Pluggable” modules for login Enabling the independence from the underlying plug-in modules
- 4. Java Authentication Provided login modules located in the javax.security.suth.spi.LoginModule interface Krb5Loginmodule used for Kerberos protocols JndiLoginModule for username/password authentication using LDAP or NIS database KeyStoreLoginModule for any type of KeyStore, including PKCS#11
- 5. Java Authentication Enforces two separate approaches Declarative Programmatic
- 6. Java Authentication Declarative Restricts access to URL’s Restricts access to Servlets Restricts access to EJB’s Automatic redirect to the login page when authentication is requested
- 7. Java Authentication Programmatic Provides querying and calling mechanisms Developer is responsible to enforce security constraints
- 8. Java Authentication JAAS Java Authentication and Authorization Service Uses PAM Pluggable Authentication Module
- 9. Java Authentication initialize() public static void main(String args[]) { LoginContext lc = new LoginContext("Login", new MyCallbackHandler(args[0],args[1])); } login() Callback[] calls=new Callback[2]; calls[0]=new NameCallback("name"); calls[1]=new PasswordCallback("Password",false); callbackHandler.handle(calls);
- 10. Java Authentication commit() f(verification) {subject.getPrincipals().add(userName); …subject.getPrincipals().add(role); return true; }else return false; logout() subject.getPrincipals().clear(); verification=false; return true;
- 11. Java Session Management Provides state management across user requests Sessions are used to store user information Sessions are used for application security Sessions are used to time out a session
- 12. Java Session Management Done with four techniques Cookies URLRewriting Hidden Forms Session Objects
- 13. Java Session Management Cookies A cookie is a piece of information Sent with every request or response Sends name/value pairs Formatted: Cookie ci = new Cookie(“myCookie”,”secret”);
- 14. Java Session Management URLRewriting Place a token or identifier at the end of the URL Send name/value pairs Format: url?name1=value1&name2=value2&…. Uses the methods: encodeURL() and encodeRedirectURL()
- 15. Java Session Management Hidden Fields Very much like URLRewriting The value cannot be seen in the URL Value can be seen in the HTML source Hidden Field require the use of a form
- 16. Java Session Management Session Objects Provided by the javax.servlet.http.HttpSession interface Used to store objects Linked Information to a user Get user information with getSession()