Watermarking Security by Patrick Bas, Teddy Furon, François Cayre, Gwenaël Doërr,

By Patrick Bas, Teddy Furon, François Cayre, Gwenaël Doërr, Benjamin Mathon (auth.)

This booklet explains find out how to degree the safety of a watermarking scheme, how you can layout safe schemes but in addition the best way to assault renowned watermarking schemes. This ebook gathers the newest achievements within the box of watermarking safeguard through contemplating either elements of this cat and mouse online game. This ebook turns out to be useful to commercial practitioners who wish to elevate the safety in their watermarking functions and for lecturers to fast grasp this interesting domain.

Show description

Read Online or Download Watermarking Security PDF

Best security books

Simple Steps to Data Encryption: A Practical Guide to Secure Computing

All people wishes privateness and defense on-line, whatever that the majority computing device clients have roughly given up on so far as their own information is anxious. there's no scarcity of fine encryption software program, and no scarcity of books, articles and essays that purport to be approximately tips to use it. but there's helpful little for usual clients who wish simply enough information regarding encryption to exploit it accurately and securely and appropriately--WITHOUT having to turn into specialists in cryptography.

Comprehensive Security in Asia: Views from Asia and the West on a Changing Security Environment

This can be an exam of "Comprehensive safeguard" as a coverage that is going past the necessities of army defence opposed to a selected "enemy" to emphasize the necessity to take into consideration different features very important to nationwide balance: meals, strength, setting, conversation and social defense.

Protecting Human Security in Africa

Keeping Human safeguard in Africa discusses the most powerful threats to human defense in Africa. It offers in particular with these threats to the protection of African humans that are least understood or explored. In topics various from corruption, the proliferation of small hands and light-weight guns, nutrition safety, the devastation of inner displacement in Africa, the hyperlink among typical assets and human protection, to the issues of compelled labour, threatsto women's safety, and environmental safeguard, the ebook examines the felony and coverage demanding situations of shielding human safeguard in Africa.

Additional resources for Watermarking Security

Sample text

We make the distinction between the equivalent decoding keys (the equivalent decoding region) and the equivalent embedding keys (resp. the equivalent embedding region) (Fig. 3). (d) (k, ) ⊂ K with ≥ 0 is the set of keys The set of equivalent decoding keys Keq that allows a decoding of the hidden messages embedded with k with a probability bigger than 1 − : (d) (k, ) = {k ∈ K : P d(e(X, M, k), k ) = M ≤ }. 3) (e) In the same way, the set of equivalent encoding keys Keq (k, ) ⊂ K is the set of keys that allow to embed messages which are reliably decoded with key k: Fig.

Again, this is the trade-off robustness versus security. Yet, as γ keeps on increasing, the situation gets more complex. If γ (R) < γ < γ (S) (resp. γ (R) > γ > γ (S) ), then this curve turns on the left (resp. right as in Fig. 4). We enter here a range of γ where security and robustness can both decrease (resp. increase). It can happen that two different γ gives different key lengths while producing the same robustness. This phenomenon has been discovered for ISS in [11, Fig. 4], but for No = 1.

2 Graphical representation in X of three decoding regions. 3 Measuring Watermarking Security Using the Effective Key Length Fig. 3 Graphical representation of K and the equivalent region Keq (k). The dotted boundary represents the support of the generative function g(O No ) which is used to draw test keys when the adversary get observations 43 k Keq (k, ) g(ONo ) K (e) Keq (k, ) = {k ∈ K : P d(e(X, M, k ), k) = M ≤ }. 4) These sets are not empty for ≥ η(0) since k is then an element. One expects that, for a sound design, these sets are empty for < η(0).

Download PDF sample

Rated 4.14 of 5 – based on 40 votes