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So far, many strong-password authentication schemes have been proposed, however, none is secure enough. In 2003, Lin, Shen, and Hwang proposed a strong-password authentication scheme using smart cards, and claimed that their scheme can resist the guessing attack, the replay attack, the...
Recently, Lee et al. proposed an improved scheme, called LLH scheme, to solve a security problem of guessing attack in the Peyravian-Zunic password scheme. The scheme comprises a password authentication protocol and a password change protocol. However, we discuss that the LLH scheme has several...
This paper presents an efficient method for finding optimized striped storage policy, abstracts and defines performance parameters to describe stripped policy according to basic requirement of distributed backup, and deduces performance evaluation formula upon several spatial storage model,...
In the Differentiated Services (DiffServ) architecture, each domain has a Bandwidth Broker to provide the resources management, primarily bandwidth reservation. In a multi-domain environment, Simple Inter-domain Bandwidth Broker Signaling (SIBBS) protocol is proposed for the inter-domain...
Based on the model checking theory, we derive the Running-Mode Analysis of three-principal cryptographic protocols from the Running-Mode Analysis of two-principal cryptographic protocols. To test this method, we analyze the Davis Swick protocol and successfully prove the security this protocol....
The problem of mutual exclusion has been extensively studied in distributed systems. The proposed solutions can be mainly classified in consensus based and token based protocols. Some of the proposed solutions consider the physical topology of the networks and try to provide optimal message...
Root Kits are tool boxes containing a collection of highly skilled tools for attacking computer systems. Their algorithms and databases contain professional knowledge about methods and mechanisms for completely automated attacks both over a network as well as from within a system. Root kits...
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