Sublime Text 2.0.1 简体中文破解版

Sublime Text 2.0.1 简体中文版来了 技术帝的最爱 Win7_32bit下亲测可用。其他Windows未测，但据了解没问题。

浅析SQL注入式攻击与防范

在当今的数字世界中,人们发现在维持公开的Internet连接的同时,保护网络和计算机系统的安全变得越来越困难。病毒、木马、后门、蠕虫等攻击层出不穷,虚假网站的钓鱼行为也让警惕性不高的公众深受其害。对SQL注入式攻击的过程做出分析,并提出检测方法和防范措施。

Analysis of the algebraic side channel attack

Abstract At CHES 2009, Renauld, Standaert and Veyrat-Charvillon introduced a new kind of attack called algebraic side-channel attacks (ASCA). They showed that side-channel information leads to effective algebraic attacks. These results are mostly experiments since strongly based on the use of a SAT solver. This article presents a theoretical study to explain and to characterize the algebraic phase of these attacks. We study more general algebraic attacks based on Gröbner methods. We show that the complexity of the Gröbner basis computations in these attacks depends on a new notion of algebraic immunity defined in this paper, and on the distribution of the leakage information of the cryptosystem. We also study two examples of common leakage models: the Hamming weight and the Hamming distance models. For instance, the study in the case of the Hamming weight model gives that the probability of obtaining at least 64 (resp. 130) linear relations is about 50% for the substitution layer of PRESENT (resp. AES). Moreover if the S-boxes are replaced by functions maximizing the new algebraic immunity criterion then the algebraic attacks (Gröbner and SAT) are intractable. From this theoretical study, we also deduce an invariant which can be easily computed from a given S-box and provides a sufficient condition of weakness under an ASCA. This new invariant does not require any sophisticated algebraic techniques to be defined and computed. Thus, for cryptographic engineers without an advanced knowledge in algebra (e.g. Gröbner basis techniques), this invariant may represent an interesting tool for rejecting weak S-boxes.