Read e-book online Advances in Computer Science – ASIAN 2007. Computer and PDF

By Andrei Sabelfeld (auth.), Iliano Cervesato (eds.)

ISBN-10: 3540769277

ISBN-13: 9783540769279

The ASIAN convention sequence offers a discussion board for researchers all through Asia topresent state of the art ends up in yearly-themed parts of desktop technology, to discussadvances in those fields, and to advertise interplay with researchers from othercontinents.Accordingly, the conferencemoves each year to another heart of researchthroughout Asia: earlier variants have been held in Tokyo, Kunming (China),Bangkok, Mumbai, Hanoi, Penang (Malaysia), Phuket (Thailand), Manila,Kathmandu, Singapore, and Pathumthani (Thailand) the place ASIAN used to be initiatedby AIT, INRIA and UNU/IIST in 1995. The twelfth variation came about in Doha,Qatar, in the course of December 9–11, 2007.Each 12 months, the convention specializes in a distinct topic on the slicing edgeof machine technology examine. The subject of ASIAN 2007 was once “Computer andNetwork Security”. it's been a convention of ASIAN to ask 3 of themost influential researchers within the concentration zone, one from Asia, one from Europeand one from the Americas, to debate their paintings and their imaginative and prescient for the field.This year’s amazing audio system have been Andrei Sabelfeld (Chalmers University,Sweden), Joshua Guttman (MITRE, united states) and Kazuhiko Kato (University ofTsukuba, Japan).

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Additional info for Advances in Computer Science – ASIAN 2007. Computer and Network Security: 12th Asian Computing Science Conference, Doha, Qatar, December 9-11, 2007. Proceedings

Sample text

Compared to CTAL0 , their framework includes richer dependent type mechanisms, in particular dependently typed records in which the type of each field can depend on values of other fields. Furthermore, it supports mutations of such record values. According to [19], they had implemented a verifier that can handle several high-level features of CCured including run-time type information. However, their framework heavily relies on externally supplied components called Type Policies, which must be trusted.

Following Definition 1, two program states ζ1 , respectively ζ2 , containing the value stores σ1 , respectively σ2 , are V said to be low equivalent with regards to a set of variables V , written ζ1 = ζ2 , if and only if the value of any variable belonging to V is the same in σ1 and σ2 . Definition 1 (Low Equivalent States). Two states ζ1 , respectively ζ2 , containing the value stores σ1 , respectively σ2 , are V low equivalent with regards to a set of variables V , written ζ1 = ζ2 , if and only if the value of any variable belonging to V is the same in σ1 and σ2 : V ζ1 = ζ2 ⇐⇒ ∀x ∈ V : σ1 (x) = σ2 (x) 36 G.

As shown below, there are two typing rules for load, one is for loading from a typed array and the other is for loading from an untyped array. The former assigns the array’s element type to the loaded value, while the latter always assigns an Int type. The typing rules for store instruction are similar. Γ vb : Int(ib ) Γ vo : Int(io ) Ψ; φ ib → τ1 , · · · , τn for some 1 ≤ m ≤ n, τm ≡ Array(τe , i) φ sizeof(τe ) = k φ ValidAccess((τ1 , · · · , τn ), m, io , k) Δ; Γ[r → τe ]; Ψ; φ I Δ; Γ; Ψ; φ load r, vo (vb ); I 24 T.

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Advances in Computer Science – ASIAN 2007. Computer and Network Security: 12th Asian Computing Science Conference, Doha, Qatar, December 9-11, 2007. Proceedings by Andrei Sabelfeld (auth.), Iliano Cervesato (eds.)


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