Communications

Get Advanced Communications and Multimedia Security: IFIP TC6 / PDF

By Chris J. Mitchell, Namhyun Hur (auth.), Borka Jerman-Blažič, Tomaž Klobučar (eds.)

ISBN-10: 0387356126

ISBN-13: 9780387356129

ISBN-10: 1475744056

ISBN-13: 9781475744057

Advanced Communications and Multimedia Security offers a state of the art evaluation of present views in addition to the most recent advancements within the region of communications and multimedia safeguard. It examines standards, matters and suggestions pertinent to securing info networks, and identifies destiny security-related study demanding situations. a large spectrum of themes is mentioned, together with:
-Applied cryptography;
-Biometry;
-Communication platforms safeguard;
-Applications protection; cellular defense;
-Distributed structures protection;
-Digital watermarking and electronic signatures.

This quantity contains the complaints of the 6th Joint operating convention on Communications and Multimedia defense (CMS'02), which was once subsidized via the overseas Federation for info Processing (IFIP) and held in September 2002 in Portoroz, Slovenia. It constitutes crucial analyzing for info safeguard experts, researchers and pros operating within the zone of desktop technological know-how and verbal exchange systems.

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Read or Download Advanced Communications and Multimedia Security: IFIP TC6 / TC11 Sixth Joint Working Conference on Communications and Multimedia Security September 26–27, 2002, Portorož, Slovenia PDF

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Extra resources for Advanced Communications and Multimedia Security: IFIP TC6 / TC11 Sixth Joint Working Conference on Communications and Multimedia Security September 26–27, 2002, Portorož, Slovenia

Example text

For large balanced tree, this may involve a substantial computation. In all cases, re-establishing trust of all users in this new root value is necessary. The computational cost involved in adding more values to a tree may motivate constructing the new tree as an unbalanced tree with the new leaf value being the right child of the root, and the old tree, the left. Another motivation for allowing unbalanced trees arises when some leaf values are referred far more frequently than others. 3 Security Issues There follow some remarks on the security of the schemes: • the scheme signs simultaneously all datagrams using a single signature.

2 EC Arithmetic Efficient finite field arithmetic is the key for a high performance ECC implementation. Even so the EC group arithmetic offers a lot of tuning possibilities. The basic operation for ECC is the computation of the scalar product k * PO::; k ::; n - 1, which is a repeatedly application of the basic group operation. Depending on the field type (prime or binary) the formulas are a little bit different. The actual group for the calculation is determined by a set of so called domain parameters.

The idea is to use a unique pseudo sequence to control the repeated embedding of each bits in a buyer's codeword. The idea may be somewhat similar to that in [CKLS97]. But our purpose is to design a simple coding method to help the merchant identify traitors and possible witness bits. Here we also take the same assumption as in [BS95] ( the Marking Assumption): Colluding pirates can detect a specific mark location if and only if the mark differs between their copies. They cannot change an undetected mark without destroying the fingerprinted object.

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Advanced Communications and Multimedia Security: IFIP TC6 / TC11 Sixth Joint Working Conference on Communications and Multimedia Security September 26–27, 2002, Portorož, Slovenia by Chris J. Mitchell, Namhyun Hur (auth.), Borka Jerman-Blažič, Tomaž Klobučar (eds.)


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