Titlebook: Cryptography and Coding; 9th IMA Internationa Kenneth G. Paterson Conference proceedings 2003 Springer-Verlag Berlin Heidelberg 2003 authen

Armada

Computing the , = , , Integer Matrix DecompositionThe cryptanalysis of Gentry and Szydlo of the revised NTRU signature scheme requires the computation of the integer matrix decomposition . = ... We propose a heuristic algorithm to compute this decomposition and investigate its properties. Our test implementation of this algorithm in Magma is able to deal with matrices up to 158 rows and columns.

allergy

Recent Developments in Array Error-Control Codesof information symbols arranged in two or more dimensions. The check symbols are calculated by taking sums of the the information symbols lying along rows, columns, diagonals or other directions or paths in the information array. The simplest array code is the binary block code obtained by taking si

Intend

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A Multifunctional Turbo-Based Receiver Using Partial Unit Memory Codesrequency-selective channels with fading. The turbo codes are based on Partial Unit Memory Codes, which may be constructed with higher free distance than equivalent recursive systematic convolutional codes and can achieve better performance than the latter. The purely digital multifunctional receiver

Isthmus

Commitment Capacity of Discrete Memoryless Channels at which a discrete memoryless channel can be used to for bit commitment. It turns out that the answer is very intuitive: it is the maximum equivocation of the channel (after removing trivial redundancy), even when unlimited noiseless bidirectional side communication is allowed. By a well–known red

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