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数学代写|密码学代写CRYPTOGRAPHY代考|CSE546 Shakespeare vs. Bacon

如果你也在 怎样代写密码学Cryptography CSE546这个学科遇到相关的难题,请随时右上角联系我们的24/7代写客服。密码学Cryptography加密技术的发展在信息时代引起了一些法律问题。密码学有可能被用作间谍和煽动的工具,这使得许多政府将其列为武器,并限制甚至禁止其使用和出口。 在一些使用密码学合法的司法管辖区,法律允许调查人员强制披露与调查有关的文件的加密密钥。 密码学在数字媒体的数字版权管理和版权侵权纠纷中也发挥了重要作用。

密码学Cryptography在现代社会之前,密码学实际上是加密的同义词,将信息从可读状态转换为不可理解的废话。加密信息的发送者只与预期的接收者分享解码技术,以排除对手的访问。密码学文献通常用Alice(”A”)表示发送者,Bob(”B”)表示预定接收者,Eve(”窃听者”)表示对手。自从第一次世界大战中转子密码机的发展和第二次世界大战中计算机的出现,密码学方法变得越来越复杂,其应用也越来越多。

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我们提供的密码学Cryptography及其相关学科的代写,服务范围广, 其中包括但不限于:

数学代写|密码学代写CRYPTOGRAPHY代考|CSE546 Shakespeare vs. Bacon

数学代写|密码学代写CRYPTOGRAPHY代考|Shakespeare vs. Bacon

In Section $1.2$ we examined the skytale, an ancient Greek device to perform transposition encryption. Another device known as the Cardano grille may also be used for this purpose. Before detailing its use, we take a brief look at the life of Girolamo Cardano (Figure 3.4).

Cardano is best remembered for being the first to publish (in Ars Magna, 1545) the solution to the cubic equation. However, a controversy ensued immediately, as he had obtained the formula from Tartaglia, after much harassment and a promise to keep it secret. Cardano is also credited with authoring the first book on probability ${ }^{18}$ (Liber de Ludo Aleae) and making the first explicit use of complex numbers in a calculation (Ars Magna again). On the personal side, things didn’t go as well. In 1560 , Cardano’s son Giambattista, was jailed and executed following his conviction for killing his wife. Another son is alleged to have had his ears cut off by Cardano for some offense!
Cardano himself was jailed in 1570 . He was charged with heresy for casting the horoscope of Jesus Christ and writing a book that praised Nero. ${ }^{19}$ His punishment was much less severe than what others faced in the hands of the Inquisition; he spent 77 days in prison and more under house arrest. Although he was banned from publishing (and even writing!) for a time, he authored 100 works over the course of his life, some of which consisted of more than one “book.”

Cardano had been plagued by health problems throughout his life. His list includes catarrh, indigestion, congenital heart palpitations, hemorrhoids, gout, rupture, bladder trouble, insomnia, plague, carbuncles, tertian fever, colic, and poor circulation, plus various other ailments. One is tempted to add hypochondria. He seemed to delight in recounting his troubles: “My struggles, my worries, my bitter grief, my errors, my insomnia, intestinal troubles, asthma, skin ailments and even phtheiriasis, the weak ways of my grandson, the sins of my own son… not to mention my daughter’s barrenness, the drawn out struggle with the College of Physicians, the constant intrigues, the slanders, poor health, no true friends” and “so many plots against me, so many tricks to trip me up, the thieving of my maids, drunken coachmen, the whole dishonest, cowardly, traitorous, arrogant crew that it has been my misfortune to deal with.” 20

数学代写|密码学代写 CRYPTOGRAPHY代考|Thomas Jefferson: President, Cryptographer

The cryptographic work of Thomas Jefferson (Figure 4.4) includes a cipher he (re)created that was previously described by Sir Francis Bacon. This system was reinvented repeatedly and was still in use up to the middle of World War II. But, before we look at it, some of Jefferson’s other cryptographic work is detailed.

For the Lewis and Clark Expedition, Jefferson instructed Lewis to “communicate to us, seasonable at intervals, a copy of your journal, notes and observations, of every kind, putting into cipher whatever might do injury if betrayed.” Jefferson had the Vigenère cipher in mind, but it was never used.7 It seems reasonable to assume that Jefferson chose this system because he was aware of weaknesses in simpler systems.

Some knowledge of cryptanalysis is also demonstrated by a nomenclator Jefferson created in 1785. Part of the code portion of this nomenclator is reproduced in Figure 4.5.

Notice that Jefferson didn’t number the words consecutively. He was aware of attacks on codes constructed in that manner (see Section 1.16) and made sure his own couldn’t be defeated by them. We now come to his most famous discovery (Figure 4.6). The older wheel cipher pictured on the right is described below. ${ }^{8}$
This enciphering and deciphering device was acquired from West Virginia by NSA in the early 1980s. It was first thought to have been a model of the “Jefferson cipher wheel,” so called because Thomas Jefferson described a similar device in his writings. We believe it to be the oldest extant device in the world, but the connection with Jefferson is unproven. Such devices are known to have been described by writers as early as Francis Bacon in 1605 and may have been fairly common among the arcane “black chambers” of European governments. This cipher wheel was evidently for use with the French language, which was the world’s diplomatic language up through World War I. How it came to be in West Virginia is unknown.

数学代写|密码学代写CRYPTOGRAPHY代考|CSE546 Shakespeare vs. Bacon

密码学代考

数学代写|密码学代写Cryptography代考

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微观经济学代写

微观经济学是主流经济学的一个分支,研究个人和企业在做出有关稀缺资源分配的决策时的行为以及这些个人和企业之间的相互作用。my-assignmentexpert™ 为您的留学生涯保驾护航 在数学Mathematics作业代写方面已经树立了自己的口碑, 保证靠谱, 高质且原创的数学Mathematics代写服务。我们的专家在图论代写Graph Theory代写方面经验极为丰富,各种图论代写Graph Theory相关的作业也就用不着 说。

线性代数代写

线性代数是数学的一个分支,涉及线性方程,如:线性图,如:以及它们在向量空间和通过矩阵的表示。线性代数是几乎所有数学领域的核心。

博弈论代写

现代博弈论始于约翰-冯-诺伊曼(John von Neumann)提出的两人零和博弈中的混合策略均衡的观点及其证明。冯-诺依曼的原始证明使用了关于连续映射到紧凑凸集的布劳威尔定点定理,这成为博弈论和数学经济学的标准方法。在他的论文之后,1944年,他与奥斯卡-莫根斯特恩(Oskar Morgenstern)共同撰写了《游戏和经济行为理论》一书,该书考虑了几个参与者的合作游戏。这本书的第二版提供了预期效用的公理理论,使数理统计学家和经济学家能够处理不确定性下的决策。

微积分代写

微积分,最初被称为无穷小微积分或 “无穷小的微积分”,是对连续变化的数学研究,就像几何学是对形状的研究,而代数是对算术运算的概括研究一样。

它有两个主要分支,微分和积分;微分涉及瞬时变化率和曲线的斜率,而积分涉及数量的累积,以及曲线下或曲线之间的面积。这两个分支通过微积分的基本定理相互联系,它们利用了无限序列和无限级数收敛到一个明确定义的极限的基本概念 。

计量经济学代写

什么是计量经济学?
计量经济学是统计学和数学模型的定量应用,使用数据来发展理论或测试经济学中的现有假设,并根据历史数据预测未来趋势。它对现实世界的数据进行统计试验,然后将结果与被测试的理论进行比较和对比。

根据你是对测试现有理论感兴趣,还是对利用现有数据在这些观察的基础上提出新的假设感兴趣,计量经济学可以细分为两大类:理论和应用。那些经常从事这种实践的人通常被称为计量经济学家。

MATLAB代写

MATLAB 是一种用于技术计算的高性能语言。它将计算、可视化和编程集成在一个易于使用的环境中,其中问题和解决方案以熟悉的数学符号表示。典型用途包括:数学和计算算法开发建模、仿真和原型制作数据分析、探索和可视化科学和工程图形应用程序开发,包括图形用户界面构建MATLAB 是一个交互式系统,其基本数据元素是一个不需要维度的数组。这使您可以解决许多技术计算问题,尤其是那些具有矩阵和向量公式的问题,而只需用 C 或 Fortran 等标量非交互式语言编写程序所需的时间的一小部分。MATLAB 名称代表矩阵实验室。MATLAB 最初的编写目的是提供对由 LINPACK 和 EISPACK 项目开发的矩阵软件的轻松访问,这两个项目共同代表了矩阵计算软件的最新技术。MATLAB 经过多年的发展,得到了许多用户的投入。在大学环境中,它是数学、工程和科学入门和高级课程的标准教学工具。在工业领域,MATLAB 是高效研究、开发和分析的首选工具。MATLAB 具有一系列称为工具箱的特定于应用程序的解决方案。对于大多数 MATLAB 用户来说非常重要,工具箱允许您学习应用专业技术。工具箱是 MATLAB 函数(M 文件)的综合集合,可扩展 MATLAB 环境以解决特定类别的问题。可用工具箱的领域包括信号处理、控制系统、神经网络、模糊逻辑、小波、仿真等。

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