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Continuous and Transparent User Identity Verification for Secure Internet Services

ABSTRACT

 Session management in distributed Internet services is traditionally based on username and password, explicit logouts and mechanisms of user session expiration using classic timeouts. Emerging biometric solutions allow substituting username and password with biometric data during session establishment, but in such an approach still a single verification is deemed sufficient, and the identity of a user is considered immutable during the entire session.  Additionally, the length of the session timeout may impact on the usability of the service and consequent client satisfaction. This paper explores promising alternatives offered by applying biometrics in the management of sessions. A secure protocol is defined for perpetual authentication through continuous user verification. The protocol determines adaptive timeouts based on the quality, frequency and type of biometric data transparently acquired from the user. Security of web-based applications is a serious concern, due to the recent increase in the frequency and complexity of cyber-attacks, biometric techniques offer emerging solution for secure and trusted authentication, where username and password are replaced by bio-metric data.

EXISTING SYSTEM	PROPOSED SYSTEM
EXISTING CONCEPT:- One of the main challenges in security analysis is the identification of possible human agents that could pose security threats to information systems. Visibility is modeled by the weight assigned to the adversary in avoiding the possibility of being detected.	PROPOSED CONCEPT:- The global trust level and the session timeout are always computed considering the time instant in which the CASHMA application acquires the biometric data. To avoid potential problems related to unknown delays in communication and computation. Since such delays are not predicable, therefore provides the absolute instant of time at which the session should expire.
EXISTING TECHNIQUE:- Biometric Technique	PROPOSED TECHNIQUE:- CASHMA (Context Aware Security by Hierarchical Multilevel Architectures) Technique
TECHNIQUE DEFINITION:- Biometric techniques offer emerging solution for secure and trusted authentication, where username and password are replaced by bio-metric data.   The incentive in their misuse is also growing, especially considering their possible application in the financial and banking sectors.	TECHNIQUE DEFINITION:- CASHMA can authenticate to web services, ranging from services with strict security requirements as online banking services to services with reduced security requirements as forums. It can grant access to physical secure areas as a restricted zone in an airport, or a military zone.
DRAWBACKS:- Each user will be issued private keys for security but there is a chance to get a duplicate key from the user to open the same file.	ADVANTAGES:- There is no chance to get a duplicate key for the same are another user to open the file because key is stored in the secured database.