Download Advances in Information and Computer Security: Third by Maciej Grześkowiak (auth.), Kanta Matsuura, Eiichiro PDF

By Maciej Grześkowiak (auth.), Kanta Matsuura, Eiichiro Fujisaki (eds.)

This e-book constitutes the refereed complaints of the 3rd foreign Workshop on defense, IWSEC 2008, held in Kagawa, Japan, in November 2008.

The 18 revised complete papers provided including 1 invited speak have been conscientiously reviewed and chosen from ninety four submissions. The papers are prepared in topical sections on cryptography, signature and signcryption, software program safety, privateness security and contents defense, authentication and entry keep an eye on, in addition to implementation.

Show description

Read Online or Download Advances in Information and Computer Security: Third International Workshop on Security, IWSEC 2008, Kagawa, Japan, November 25-27, 2008. Proceedings PDF

Best international_1 books

Hyperbolic Problems: Theory, Numerics, Applications: Eighth International Conference in Magdeburg, February/March 2000 Volume 1

The 8th overseas convention on Hyperbolic difficulties - thought, Nu­ merics, purposes, used to be held in Magdeburg, Germany, from February 27 to March three, 2000. It used to be attended via over 220 individuals from many eu international locations in addition to Brazil, Canada, China, Georgia, India, Israel, Japan, Taiwan, und america.

Conceptual Modeling: 33rd International Conference, ER 2014, Atlanta, GA, USA, October 27-29, 2014. Proceedings

This e-book constitutes the refereed lawsuits of the thirty second foreign convention on Conceptual Modeling, ER 2014, held in Atlanta, GA, united states. The 23 complete and 15 brief papers offered have been conscientiously reviewed and chosen from eighty submissions. issues of curiosity awarded and mentioned within the convention span the full spectrum of conceptual modeling together with examine and perform in components equivalent to: info on the internet, unstructured info, doubtful and incomplete info, immense info, graphs and networks, privateness and security, database layout, new modeling languages and purposes, software program innovations and methods, styles and narratives, info administration for company structure, urban and concrete functions.

The Gamble of War: Is It Possible to Justify Preventive War?

This booklet analyzes the justification of preventive struggle in modern asymmetrical diplomacy. It makes a speciality of the main an important point of prevention: uncertainty. It builds a brand new framework the place the position of luck―whether army, political, ethical, or normative―is a corrective to the conventional techniques of the simply struggle culture.

Additional resources for Advances in Information and Computer Security: Third International Workshop on Security, IWSEC 2008, Kagawa, Japan, November 25-27, 2008. Proceedings

Sample text

Otherwise, output M = C2 ⊕ h(C0z ). As earlier mentioned, the required operation for encryption in the proposed scheme is only exponentiations with a common exponent r under fixed bases (which are contained in P K). 2 Security Before going into a formal security proof of the proposed scheme, we consider the (in)security of its simplified scheme which would be helpful for understanding the essential part of the proposed scheme. The (insecure) simplified scheme is as follows: Suppose that the decryption key is reduced to be only dk = (x0 , z) and the public key is P K = (G, g, X0 , Z, h).

K. 3. B inputs public key P K = (G, g, X0 , . . , Xk , Y0 , . . , Yk , Z) and challenge ciphertext ψ = (g β , (g β )µ0 , . . , (g β )µk , γ) to A where µi = ai if vi = 0, or µi = bi if vi = 1 for i = 0, . . , k. Notice that ψ is a valid ciphertext for plaintext γ ⊕ h(g αβ ) ∈ {0, 1}. We also note that since the pair of plaintexts (M0 , M1 ) which are challenged is always (0, 1), without loss of generality B may give ψ to A at this stage. 4. When A makes decryption query ψ = (C0 , C1,0 , .

More specifically, in the proposed scheme, for fixed group elements g1 , . . , g in the public key a sender computes only g1r , . . , g r for encryption where r is a single random number. Due to this simple structure, its security proof becomes very short (and one would easily understand the simulator’s behavior for simultaneously dealing with embedding a hard problem and simulating a decryption oracle). Our proposed scheme is provably chosen-ciphertext secure under the gap Diffie-Hellman assumption (without random oracles).

Download PDF sample

Rated 4.75 of 5 – based on 9 votes