In this paper we propose an improved multi-byte differential fault analysis of AES-128 key schedule using a single pair of fault-free and faulty ciphertexts. We propose a four byte fault model where the fault is induced at ninth round key. The induced fault corrupts all the four bytes of the first column of the ninth round key which subsequently propagates to the entire tenth round key. The ele...

We consider the problem of fault-tolerant parallel search on an infinite line by n robots. Starting from the origin, the robots are required to find a target at an unknown location. The robots can move with maximum speed 1 and can communicate in wireless mode among themselves. However, among the n robots, there are f robots that exhibit byzantine faults. A faulty robot can fail to report the ta...

We present an adaptive deadlock-free routing algorithm which decomposes a given network into two virtual interconnection networks, V IN 1 and V IN 2. V IN 1 supports deterministic deadlock-free routing, and V IN 2 supports fully-adaptive routing. Whenever a channel in V IN 1 or V IN 2 is available, it can be used to route a message. Each node is identiied to be in one of three states: safe, uns...

The use of fault-tolerant mechanism is essential to ensure the correct functionality of integrated circuits after manufacturing due to the massive number of faults that may occur during the process. In this work, we propose a set of fault-tolerant techniques to cope with faulty wires in Network-on-Chip (NoC). The most appropriate technique is chosen by taking into account the number of faulty w...

A banyan network and its topologically equivalent ones have recently been adopted as the interconnection networks in a multiprocessor system. Often a multiprocessor system is reconfigured when the banyan network becomes faulty. It is possible to avoid a complicated reconfiguration process as long as the faulty banyan network still possesses the dynamic full access (DFA) property. In this short ...

To increase the reliability of networks embedded in meshes or tori and to allow their use in the presence of faulty nodes, efficient fault-tolerant schemes in meshes and tori are necessary. In this paper, we present algorithms for embedding a ring in a mesh-type and torus-type multiprocessor networks in the event of node failures. In our approach, a mesh or torus is partitioned into 4 4 submesh...

Software defect prediction in software engineering is one of the most interesting research fields. To improve the quality and reliability of the software in less time and in minimum cost, it is the most relevant key area where various researchers have been done. When the size and complexity of software increases then faults prediction in the software became more difficult. To maintain the high ...