منابع مشابه
CJE 27/1 pp. 065-084 REV
We consider the microfoundations controversy from the perspective of economic evolution. Although the analogy between biology and economics has been noted before, it has rarely focused on clarifying the micro–macro distinction in economic theory and modelling. The micro–macro debate is more developed in biology than in economics owing to a greater degree of specialisation and a greater degree o...
متن کاملAnalysis of SHA-512/224 and SHA-512/256
In 2012, NIST standardized SHA-512/224 and SHA-512/256, two truncated variants of SHA-512, in FIPS 180-4. These two hash functions are faster than SHA-224 and SHA-256 on 64-bit platforms, while maintaining the same hash size and claimed security level. So far, no third-party analysis of SHA-512/224 or SHA-512/256 has been published. In this work, we examine the collision resistance of step-redu...
متن کاملPreimages for Reduced SHA-0 and SHA-1
In this paper, we examine the resistance of the popular hash function SHA-1 and its predecessor SHA-0 against dedicated preimage attacks. In order to assess the security margin of these hash functions against these attacks, two new cryptanalytic techniques are developed: – Reversing the inversion problem: the idea is to start with an impossible expanded message that would lead to the required d...
متن کاملCollisions of SHA-0 and Reduced SHA-1
In this paper we describe improvements to the techniques used to cryptanalyze SHA-0 and introduce the first results on SHA1. The results include a generic multi-block technique that uses nearcollisions in order to find collisions, and a four-block collision of SHA-0 found using this technique with complexity 2. Then, extension of this and prior techniques are presented, that allow us to find co...
متن کاملViability, Remodeling, and CABG
F ollowing myocardial infarction, left ventricular (LV) remodeling is characterized by increased LV end-diastolic and end-systolic volumes (ESV) and decreased LV ejection fraction (EF) (1). This process is driven by elongation of infarcted zones and changes within the unaffected myocardium, including myocyte hypertrophy and interstitial collagen deposition. With medical therapy, revascularizati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Saudi Heart Association
سال: 2011
ISSN: 1016-7315
DOI: 10.1016/j.jsha.2011.02.085