암호학

수학노트
Pythagoras0 (토론 | 기여)님의 2020년 12월 21일 (월) 09:14 판
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개요

  • 암호학은 정보를 의도하지 않은 수신자가 이해할 수 없는 형태로 변환하여 정보를 안전하게 유지하는 과학이다.
  • 암호학은 현대의 통신환경에서 필수적이다.
  • 공개 키 암호화는 모든 시민에게 강력한 암호화를 사용할 수 있게 해주는 기술이다.


메모

  • Elias, Yara, Kristin E. Lauter, Ekin Ozman, and Katherine E. Stange. “Ring-LWE Cryptography for the Number Theorist.” arXiv:1508.01375 [cs, Math], August 6, 2015. http://arxiv.org/abs/1508.01375.


노트

  • In all cases, cryptography, the coding enabling information to be kept secret, was flawed or missing.[1]
  • For years online security has focused on hard technical problems: Fixing software bugs or concealing data with cryptography.[1]
  • When you hear the word "cryptography," your brain probably jumps to someone sitting in a dark room staring at lines of code.[2]
  • Secret key cryptography uses one key across both the sending encryption and the receiver's decryption.[2]
  • Public Key Cryptography allows for the use of two keys, which are different for the sender and receiver.[2]
  • Drawing back to the question at hand, what is cryptography, the answer is fairly simple.[2]
  • Asymmetric encryption (or public-key cryptography) uses a separate key for encryption and decryption.[3]
  • Today, cryptography is used to protect digital data.[4]
  • An example of basic cryptography is a encrypted message in which letters are replaced with other characters.[4]
  • Therefore, modern cryptography involves developing encryption methods that are difficult for even supercomputers to break.[4]
  • The OECD Recommendation Concerning Guidelines for Cryptography Policy were adopted on 27 March 1997.[5]
  • However, the widespread use of cryptography raises a number of important issues.[5]
  • Traditionally, cryptography was most often used only by governments.[5]
  • Effective cryptography is an essential tool in a network environment for addressing these concerns.[5]
  • Cryptography uses two main styles or forms of encrypting data; symmetrical and asymmetrical.[6]
  • A key tool to secure the confidentiality of electronic communications is encryption or cryptography.[7]
  • In other words cryptography can be used as an electronic signature.[7]
  • Public-key cryptography is typically based on mathematical problems that are relatively easy to perform but cannot be easily reversed.[8]
  • "The Joy of Cryptography" is a silly title, but all the sensible titles were already taken.[9]
  • It was at least better than "You Can't Spell Cryptography without Cry".[9]
  • Cryptography is the art and science of keeping information secure from unintended audiences, of encrypting it.[10]
  • Public key cryptography adds a very significant benefit - it can serve to authenticate a source (e.g. a digital signature).[10]
  • Public key cryptography was invented by Whitfield Diffie and Martin Hellman in 1975.[10]
  • Provides a Cryptography Next Generation (CNG) implementation of the Elliptic Curve Diffie-Hellman (ECDH) algorithm.[11]
  • TripleDESCng Provides a Cryptography Next Generation (CNG) implementation of the Triple Data Encryption Standard (3DES) algorithm.[11]
  • The second phase, the mechanization of cryptography, began shortly after World War I and continues even today.[12]
  • It is tempting to equate this phase with the appearance of public-key cryptography, but that is too narrow a view.[12]
  • It could be said that cryptography, or the art of secret writing, was born with writing itself.[13]
  • The world we know today would be impossible without cryptography.[13]
  • For this reason, public-key cryptography is also known as asymmetric cryptography.[13]
  • None of these marvels would be possible without cryptography.[13]
  • As of Android 9 (API level 28), the Crypto Java Cryptography Architecture (JCA) provider has been removed.[14]
  • Public key encryption is a technological revolution offering every citizen the opportunity to use robust cryptography.[15]
  • Cryptography techniques Cryptography is closely related to the disciplines of cryptology and cryptanalysis.[16]
  • However, cryptography makes it harder for attackers to access messages and data protected by encryption algorithms.[16]
  • Cryptography is the science of keeping information secure by transforming it into form that unintended recipients cannot understand.[17]
  • Encryption is an important part of cryptography, but doesn't encompass the entire science.[17]
  • For most of history, cryptography consisted of various substitution ciphers deployed to keep government and military communications secure.[17]
  • In fact, the development of computers and advances in cryptography went hand in hand.[17]
  • Cryptography is associated with the process of converting ordinary plain text into unintelligible text and vice-versa.[18]
  • Symmetric-key Cryptography: Both the sender and receiver share a single key.[18]
  • In Public-Key Cryptography two related keys (public and private key) are used.[18]
  • With symmetric cryptography, the same key is used for both encryption and decryption.[19]
  • Prior to the early 20th century, cryptography was mainly concerned with linguistic and lexicographic patterns.[20]
  • Computer use has thus supplanted linguistic cryptography, both for cipher design and cryptanalysis.[20]
  • Extensive open academic research into cryptography is relatively recent; it began only in the mid-1970s.[20]
  • Since then, cryptography has become a widely used tool in communications, computer networks, and computer security generally.[20]
  • But it is important to note that while cryptography is necessary for secure communications, it is not by itself sufficient.[21]
  • The second is to provide some real examples of cryptography in use today.[21]
  • It is no surprise, then, that new forms of cryptography came soon after the widespread development of computer communications.[21]
  • In cryptography, we start with the unencrypted data, referred to as plaintext.[21]
  • Cryptography deals with the actual securing of digital data.[22]
  • The primary objective of using cryptography is to provide the following four fundamental information security services.[22]
  • Cryptography may also refer to the art of cryptanalysis, by which cryptographic codes are broken.[23]
  • Collectively, the science of secure and secret communications, involving both cryptography and cryptanalysis, is known as cryptology.[23]
  • The principles of cryptography are today applied to the encryption of fax, television, and computer network communications.[23]
  • This Edureka video about what is Cryptography and why it is essential to protect the information shared across the internet.[24]
  • That’s where Encryption or Cryptography comes in.[24]
  • Further drilling down, Classical Cryptography is divided into Transposition Cipher and Substitution Cipher.[24]
  • cryptography is a package which provides cryptographic recipes and primitives to Python developers.[25]
  • In this segment, we'll discuss the fundamental concepts behind modern cryptography.[26]
  • Asymmetric keys and symmetric keys are two basic types of algorithms that are used in modern cryptography.[26]
  • In addition, cryptography also covers the obfuscation of information in images using techniques such as microdots or merging.[27]
  • When transmitting electronic data, the most common use of cryptography is to encrypt and decrypt email and other plain-text messages.[27]
  • In public key cryptography, we use a public and a private key.[28]
  • In general, cryptography provides us with a mechanism to protect data at rest, in motion, and, to a certain extent, in use.[28]
  • Provides a Cryptography Next Generation (CNG) implementation of the Triple Data Encryption Standard (3DES) algorithm.[29]

소스

  1. ↑ 이동: 1.0 1.1 Definition of Cryptography by Merriam-Webster
  2. ↑ 이동: 2.0 2.1 2.2 2.3 What is Cryptography?
  3. ↑ All about SSL Cryptography
  4. ↑ 이동: 4.0 4.1 4.2 Cryptography Definition
  5. ↑ 이동: 5.0 5.1 5.2 5.3 OECD Guidelines for Cryptography Policy
  6. ↑ Barcodes Inc.
  7. ↑ 이동: 7.0 7.1 meaning in the Cambridge English Dictionary
  8. ↑ AWS cryptography services
  9. ↑ 이동: 9.0 9.1 The Joy of Cryptography
  10. ↑ 이동: 10.0 10.1 10.2 Cryptography Defined
  11. ↑ 이동: 11.0 11.1 System.Security.Cryptography Namespace
  12. ↑ 이동: 12.0 12.1 Cryptology - History of cryptology
  13. ↑ 이동: 13.0 13.1 13.2 13.3 Cryptography: if it didn’t exist, we would have to invent it
  14. ↑ Android Developers
  15. ↑ Cryptography
  16. ↑ 이동: 16.0 16.1 Definition from WhatIs.com
  17. ↑ 이동: 17.0 17.1 17.2 17.3 What is cryptography? How algorithms keep information secret and safe
  18. ↑ 이동: 18.0 18.1 18.2 What is Cryptography? Definition of Cryptography, Cryptography Meaning
  19. ↑ What Is Cryptography and How Does It Work?
  20. ↑ 이동: 20.0 20.1 20.2 20.3 Cryptography
  21. ↑ 이동: 21.0 21.1 21.2 21.3 An Overview of Cryptography
  22. ↑ 이동: 22.0 22.1 Modern Cryptography
  23. ↑ 이동: 23.0 23.1 23.2 Cryptography
  24. ↑ 이동: 24.0 24.1 24.2 Cryptographic Algorithms
  25. ↑ cryptography
  26. ↑ 이동: 26.0 26.1 Technical Training
  27. ↑ 이동: 27.0 27.1 What is Cryptography?
  28. ↑ 이동: 28.0 28.1 Cryptography - an overview
  29. ↑ System.Security.Cryptography 네임스페이스
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