Cryptography introduction ppt
WebAug 4, 2014 · PPT - Introduction to Cryptography PowerPoint Presentation, free download - ID:2810809 Create Presentation Download Presentation Download 1 / 39 Introduction to Cryptography 211 Views Download Presentation Introduction to Cryptography. What Is Cryptography. Cryptology The art (science) of communication with secret codes. WebCryptography – Greek for hidden and writing is a means of transforming data in a way that renders it unreadable by anyone except the intended recipient. What was originally used …
Cryptography introduction ppt
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WebCryptography, then, not only protects data from theft or alteration, but can also be used for user authentication. There are, in general, three types of cryptographic schemes typically used to accomplish these goals: secret key (or symmetric) cryptography, public-key (or asymmetric) cryptography, and hash functions, each of which is described ... WebAuthentication - assurance that the communicating entity is the one claimed; Access Control - prevention of the unauthorized use of a resource; Data Confidentiality –protection of …
WebIntroduction. What are Elliptic Curves? Curve with standard form y2 = x3 + ax + b a, b ϵ ℝ. Characteristics of Elliptic Curve. Forms an abelian group. Symmetric about the x-axis. Point at Infinity acting as the identity element Webcourses.cs.washington.edu
WebOct 7, 2014 · Discrete Mathematics: Cryptography. Section Summary • Classical Cryptography • Caesar Cipher • Shift Cipher • Affine Ciphers • Block Ciphers • Cryptosystems • Public Key Cryptography • RSA Cryptosystem. Caesar Cipher Julius Caesar created secret messages by shifting each letter three letters forward in the alphabet, sending the last … Web2. THE PURPOSE OF CRYPTOGRAPHY Cryptography is the science of writing in secret code and is an ancient art; the first documented use of cryptography in writing dates back to …
WebCryptography is the mathematical foundation on which one builds secure systems. It studies ways of securely storing, transmitting, and processing information. Understanding …
WebApr 16, 2024 · Flavor Conversion for Quantum Bit Commitments. Commitments are one of the most important primitives in cryptography. It enables one to “commit” to a (classical) bit Footnote 6 in such a way that the committed bit is hidden from other parties before the committer reveals it, which is called the hiding property, and the committer cannot change … the pink butterWebNov 29, 2014 · What is Cryptography?. A method of storing and transmitting data in a form that is unreadable to unauthorized individuals. History of Cryptography. It has been around since the time of the Egyptians It can take on many different forms Slideshow 7005872 by troy-parks Browse Recent PresentationsContent TopicsUpdated ContentsFeatured Contents the pink bus fargo ndWebSep 19, 2014 · Presentation Transcript. Cryptography • Cryptography is the technique of secret writing. • A cipher is a method of secret writing. • The purpose is to convert an intelligible message, referred to as plaintext, into apparently random nonsense text, referred to as ciphertext. • The encryption process consists of an algorithm and a key. side effect of antihistamineWebIntroduction to Cryptography. What Is Cryptography? Breaking an Encryption Scheme. Types of Cryptographic Functions. Secret Key Cryptography. Public Key Cryptography. Hash Algorithms. side effect of antidepressantsWebDec 30, 2015 · Introduction to CryptographyLecture 2 Functions FunctionsDefinition: A function is a relation, such that each element of a set (the domain) is associated with a unique element of another (possibly the same) set (the range) FunctionNot a function the pink bus nashvilleWebCryptography. Description: Cryptography Cryptography Cryptography is the science and study of secret writing. Cryptanalysis is the science and study of methods of breaking ciphers. – PowerPoint PPT presentation. Number of Views: 254. Avg rating:3.0/5.0. Slides: 91. Provided by: bti3. the pink bus tourWebCryptography Symmetric-Key Cryptography Cryptanalysis Cryptanalysis (2) Examples Simple and non-secure ciphers Shift Cipher – Caesar Cipher Affine Cipher Vigenere Cipher Hill Cipher Information-secure cipher One-Time Pad Confusion and Diffusion Confusion and Diffusion (2) Confusion and Diffusion (3) Block Cipher Example: DES Example: DES (2) … the pink butterfly foundation