Multidimensional: User with File Content and Server’s Status Based Authentication for Secure File Operations in Cloud

Abstract

one who has the credentials irrespective of the knowledge of the authenticity of the authentic user. Adopting a mixture and layers of different types of authentication methods can protect the system better from unauthorized users. Some of the most common second factor authentication methods adopted by financial institutions like banks are use of PIN sentry, memorable word, and OTP (One Time Password) [2-5]. Financial organizations like Barclays even uses second or third factor authentication depending on the online activity and the session keys are generated based on factors like knowing user memorable PIN, transaction amount, smart card information, physical card availability etc. using Chip Authentication Program like PIN sentry, but detail internal methods and techniques are not available in public domain due to security reasons and one such security framework for card reader is presented by [2]. In a PIN sentry approach, it reads the card details and using the secret pin, one-time 8-digit pin password is generated to authenticate.