Cryptographic applications demand much more of a pseudo-random-sequence
generator than do most other applications. Cryptographic randomness does not mean just
statistical randomness, although that is part of it. For a sequence to be cryptographically
secure pseudo-random, it must be unpredictable.
The random sequences should satisfy the basic randomness postulates; one of them is
the run postulate (sequences of the same bit). These sequences should have about the same
number of ones and zeros, about half the runs should be of length one, one quarter of length
two, one eighth of length three, and so on.The distribution of run lengths for zeros and ones
should be the same. These properties can be measured deterministicallyand then compared to
statistical expectations using a chi-square test.
In this paper the Run Criterion, is calculated, it can be calculated for any key generator
before it be implemented or constructed (software or hardware).The cryptosystems: Linear,
Product and Brüer are chosen as study cases.
The organization and development of the irrigation system and agrarian reform in Iraq had an impact on the diversity of its methods and uses
Arab and Muslim scholars have made influential contributions to the development of mathematics by providing it with many achievements and inventions. This research presents the most important of these achievements and assistance in mathematics during the period of the Islamic Renaissance for different Arab and Muslim Scholars. One of the clearest and most prominent examples of these achievements is the establishment of the science of algebra and the discovery of zero and added to the numbers by the Muslim Scholar of Al-Khwarizmi, which facilitated the solution of many arithmetic problems and issues to this day.
مشكلة البحث :
إن القرآن الكريم هو النور المبين والذكر الحكيم يحتوي على الغاية الأسمى التي تهدف اليها الإنسانية ، فهو روح التربية الإسلامية وهو المنهج القديم الذي تستمد منه فلسفتنا التربوية واتجاهاتها ، (الزوبعي ، 1974: 18)
إن الدين الإسلامي هو نظام الهي
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Background: Acne is a common disorder experienced by adolescents and persists into adulthood in approximately 12%–14% of cases with psychological and social implications of high gravity. Fractional resurfacing employs a unique mechanism of action that repairs a fraction of skin at a time. The untreated healthy skin remains intact and actually aids the repair process, promoting rapid healing with only a day or two of downtime. Aims: This study, was designed to evaluate the safety and effectiveness of fractional photothermolysis (fractionated Er: YAG laser 2940nm) in treating atrophic acne scars. Methods: 7 females and 3 males with moderate to severe atrophic acne scarring were enrolled in this study that attained private clinic for Derm
... Show Moreيكون النبات أحد عناصر النظام البيئي Ecosystem مع المناخ والتربة والطبوغرافية والموقع وعناصر الحياة الأخرى، والنبات الطبيعي الموجود حالياً, بغض النظر عن مدى تدخل الأنسان, هو في حالة " توازن بيئي" Climax مع
Abstract
All the economic units whether productive or service units , strive to achieve specific objectives , their presence and continuity depend on them and the quality of the performance and service present to the society . This units to be able to achieve their objectives , must own basic assets to perform the activities , and apply laws , systems , and instructions , in addition to legal , managerial , and financial authorities . So this units to endeavor maintain this assets , in addition to sound application of laws ,systems . and procedures to enhance their performance . For this purpose arise the role of internal control and internal check in maintenance of assets and sound application of&n
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This Kind of study has a special importance. Great numbers of Arab Muslims share a lot of their work, their Trans lations & new additions to scientific heritage. They facilitate the indirect way for Europeans to got Greek scientific knowledge. Ibn Sina classified & collected in his book (Law) Galen`s medical publications & he clarified, arranged & make them easy to understand.
دور المعالجة الادراكية في اختزال البنية التصميمية للعلامة التجارية
Islam paid great attention to the youth, and took care of them because they
are the strength and movement, which is the preferrence stage in human life,
and they are the ones who