Cryptography
•Download as PPTX, PDF•
0 likes•19 views
Cryptography is the science of securing communication and information by transforming messages into an unreadable format. The document discusses the origins and evolution of cryptography from ancient hieroglyphs to modern ciphers like the Enigma machine. It outlines the main purposes of cryptography as authentication, data confidentiality, integrity and non-repudiation. The key types are described as secret key cryptography, public key cryptography and hash functions. Applications of cryptography include authentication, digital signatures, time stamping and secure network communications.
Report
Share
Report
Share
Recommended
Crytography
This document provides an overview of cryptography including its history, components, terminology, types, and applications. Cryptography is the science of securing communications and ensures confidentiality, integrity, and authentication of messages. It has military and civilian applications and relies on techniques from mathematics, computer science, and electrical engineering. The document discusses symmetric and asymmetric key cryptography, describing how symmetric uses a shared key while asymmetric uses public/private key pairs. Digital signatures and certificates are also covered.
Cryptography
This document provides an overview of cryptography. It defines cryptography as a method of storing and transmitting data in a way that only the transmitter and receiver can access the information. The document then discusses the history of cryptography, including classic ciphers like the Caesar cipher and modern techniques like symmetric and asymmetric cryptography. It describes how symmetric cryptography uses a single key for encryption and decryption while asymmetric cryptography uses public-private key pairs. The document outlines some examples of symmetric and asymmetric algorithms and analyzes the advantages and disadvantages of each approach. Finally, it discusses some applications of cryptography like ATM PINs, encrypted drives, digital signatures, and time stamping.
Introduction to Cryptography Parts II and III
These are the second and third parts of my introduction to cryptography lectures I have presented at numerous institutions in Lithuania. These introduce PRNGs, assymetric ciphers, key exchange, digital signatures and certificates. The presentation is based on the book by known cryptography expert Christof Paar.
Cryptography
This document provides an overview of cryptography. It begins with an introduction and then defines cryptography as the practice of hiding information. The document discusses the purposes of cryptography which include authentication, privacy, integrity, and non-repudiation. It then describes the different types of cryptography including secret key cryptography and public key cryptography. Secret key cryptography uses a single key for encryption and decryption while public key cryptography uses separate public and private keys. The document concludes with a brief discussion of how the type of cryptography used depends on the requirements for speed or secrecy.
Cryptography, a science of secure writing
Cryptography is the science of secure writing. It allows for authentication of users, privacy, integrity of messages, and non-repudiation through various encryption techniques. The document discusses the history and purposes of cryptography. It outlines modern cryptographic algorithms like secret key cryptography, hash functions, and public key cryptography. Specific algorithms like AES, RSA, and MD5 are also mentioned. The significance of passwords and drawbacks of cryptography are reviewed.
Cryptography
cryptography presentation.... of u need source file mail me at nastypradeep@gmail.com.. call me +919962313702
F16 cs61 cryptography
Cryptography is the study of securing communication and information. It uses protocols, algorithms, and strategies to hide sensitive information from unauthorized access and enable verification of every component of a communication. The primary functions of cryptography are privacy, authentication, integrity, non-repudiation, and key exchange. While cryptography provides advantages in security and verification, it also has limitations such as vulnerability to brute force attacks and risk of losing access to data if secret keys are lost.
Introduction to Cryptography Part I
This document provides an overview and summary of a presentation based on the book "Understanding Cryptography – A Textbook for Students and Practitioners" by Christof Paar and Jan Pelzl. It outlines the content covered in part one of the book, including an introduction to cryptography, symmetric cryptography, the one-time pad, substitution ciphers, shift ciphers and the affine cipher. It also mentions the Enigma machine, DES and AES block ciphers. The document provides some legal terms for using the slides and cites additional references for further reading.
Recommended
Crytography
This document provides an overview of cryptography including its history, components, terminology, types, and applications. Cryptography is the science of securing communications and ensures confidentiality, integrity, and authentication of messages. It has military and civilian applications and relies on techniques from mathematics, computer science, and electrical engineering. The document discusses symmetric and asymmetric key cryptography, describing how symmetric uses a shared key while asymmetric uses public/private key pairs. Digital signatures and certificates are also covered.
Cryptography
This document provides an overview of cryptography. It defines cryptography as a method of storing and transmitting data in a way that only the transmitter and receiver can access the information. The document then discusses the history of cryptography, including classic ciphers like the Caesar cipher and modern techniques like symmetric and asymmetric cryptography. It describes how symmetric cryptography uses a single key for encryption and decryption while asymmetric cryptography uses public-private key pairs. The document outlines some examples of symmetric and asymmetric algorithms and analyzes the advantages and disadvantages of each approach. Finally, it discusses some applications of cryptography like ATM PINs, encrypted drives, digital signatures, and time stamping.
Introduction to Cryptography Parts II and III
These are the second and third parts of my introduction to cryptography lectures I have presented at numerous institutions in Lithuania. These introduce PRNGs, assymetric ciphers, key exchange, digital signatures and certificates. The presentation is based on the book by known cryptography expert Christof Paar.
Cryptography
This document provides an overview of cryptography. It begins with an introduction and then defines cryptography as the practice of hiding information. The document discusses the purposes of cryptography which include authentication, privacy, integrity, and non-repudiation. It then describes the different types of cryptography including secret key cryptography and public key cryptography. Secret key cryptography uses a single key for encryption and decryption while public key cryptography uses separate public and private keys. The document concludes with a brief discussion of how the type of cryptography used depends on the requirements for speed or secrecy.
Cryptography, a science of secure writing
Cryptography is the science of secure writing. It allows for authentication of users, privacy, integrity of messages, and non-repudiation through various encryption techniques. The document discusses the history and purposes of cryptography. It outlines modern cryptographic algorithms like secret key cryptography, hash functions, and public key cryptography. Specific algorithms like AES, RSA, and MD5 are also mentioned. The significance of passwords and drawbacks of cryptography are reviewed.
Cryptography
cryptography presentation.... of u need source file mail me at nastypradeep@gmail.com.. call me +919962313702
F16 cs61 cryptography
Cryptography is the study of securing communication and information. It uses protocols, algorithms, and strategies to hide sensitive information from unauthorized access and enable verification of every component of a communication. The primary functions of cryptography are privacy, authentication, integrity, non-repudiation, and key exchange. While cryptography provides advantages in security and verification, it also has limitations such as vulnerability to brute force attacks and risk of losing access to data if secret keys are lost.
Introduction to Cryptography Part I
This document provides an overview and summary of a presentation based on the book "Understanding Cryptography – A Textbook for Students and Practitioners" by Christof Paar and Jan Pelzl. It outlines the content covered in part one of the book, including an introduction to cryptography, symmetric cryptography, the one-time pad, substitution ciphers, shift ciphers and the affine cipher. It also mentions the Enigma machine, DES and AES block ciphers. The document provides some legal terms for using the slides and cites additional references for further reading.
Securing Text Messages Application Using MED
Implementing hybrid security algorithm in securing data.
-Introduction
-Problem statement
-Objective
-Process model
-Public key cryptosystem
-Data model
-Proposed model
-Encryption and decryption process
-Proof of concept
* netbeans 8.1 *xampp *database
*java programming language
-Expected results
*performance for key generation, encryption and decryption
*graph
-References
Encryption
Encryption encodes information to protect it from unauthorized access. It involves two processes - encryption scrambles the information using an algorithm, while decryption reverses the process to restore the original information. There are two main methods: symmetric key encryption uses the same key to encrypt and decrypt, while asymmetric key encryption uses separate public and private keys.
Cryptography
This document provides an overview of cryptography concepts including:
- A brief history of cryptography from manual ciphers to modern computer-based systems.
- Key terms like plaintext, ciphertext, and keyspace.
- Types of cryptographic methods including symmetric, asymmetric, and hashing algorithms.
- Public key infrastructure components like certificates and certificate authorities.
- Cryptanalysis techniques for attacking cryptosystems such as brute force and social engineering attacks.
- Applications of cryptography including email security, network security protocols like SSL/TLS, and IPSec.
Ss
Computer encryption uses cryptography to secure online transactions. There are two main types of encryption: symmetric-key encryption where both computers share the same key, and public-key encryption which uses different keys for encryption and decryption. Encryption encodes data during transmission while authentication verifies the identity of the sender and confirms the data has not been altered. Together, encryption and authentication create a secure online environment for sharing information.
Android based message encryption decryption using matrix
Abstract
In this paper we are going to encrypt plain text to encrypted text. Message encryption is character value based encryption in which 3D message character matrix is replaced with 2D encryption value matrix. It can also know by some kind of message masking which work on upper level to provide maximum security. Password protection increases encrypted message file security.
Keywords – Matrix, ASCII Offset Value, DES, 3D Message Masking, and 2D.
Cryptography 1
This document provides an overview of cryptography concepts including encryption, decryption, ciphers, block ciphers, stream ciphers, data encryption standards (DES), pseudo-random functions and permutations (PRFs and PRPs), integrity, key exchange, and public key encryption. Cryptography is the process of converting plain text to unintelligible ciphertext and vice versa. Encryption converts plain text to ciphertext while decryption converts ciphertext back to plain text. Ciphers and algorithms like DES are used to encrypt data using symmetric or asymmetric keys.
Dissemination of knowledge on Secure Systems Engineering
This document provides an overview of topics related to secure systems engineering including cryptography, digital signatures, blockchains, and privacy technologies. It discusses cryptography concepts like symmetric and asymmetric encryption. Digital signatures are explained as a method to authenticate messages using public/private key pairs. Blockchains are described as a method to securely record transactions in a distributed ledger using hashes. Privacy-preserving technologies like zero-knowledge proofs, Zcash, and garbled circuits are also introduced.
Singapore Korea IT Symposium 2018 - SovereignWallet Network
Seokgu Yun - Founder and CTO of SovereignWallet Network
Messenger-Style Cryptocurrency Wallet with Banking-grade Security
July13th 2018, Intercontinental(Bugis) | Grand Ballrom (2F)
Cryptography : The Art of Secured Messaging
Cryptography is the art of securing messages by encrypting information into an unreadable cipher text format that can only be decrypted by those with the secret key. Modern cryptography techniques are virtually unbreakable. Cryptography is commonly used to protect email, credit cards, and corporate data on the internet. There are two main types of cryptography - symmetric which uses one shared key for encryption and decryption, and asymmetric which uses two mathematically related keys, a public and private key. Cryptography ensures confidentiality, integrity, and authenticity of messages.
Fundamentals of cryptography
Introduction to Cryptography, Fundamentals of cryptography, Encryption, Decryption, Plaintext, Ciphertext, Public key cryptography, Secret key cryptography, steam cipher, block cipher, transposition cipher, security of cryptographic algorithm, cipher attack,
Introduction to Cryptography
Cryptography is the practice of securing communication and information by converting plaintext into ciphertext. The document provides an introduction to cryptography including its history from ancient times to the present. It discusses terminology like plaintext, encryption, ciphertext, decryption, and keys. Symmetric key cryptography uses a single key for encryption and decryption while asymmetric key cryptography uses two different keys. Examples of symmetric methods are DES, 3DES, AES, and RC4, while RSA is a common asymmetric method. Applications of cryptography include ATMs, email passwords, e-payments, e-commerce, electronic voting, defense services, securing data, and access control.
My cryptography
A short ppt on Cryptography . It contains just an abstract idea of Cryptography presented by Me for College
Presentation .
Evolution of Cryptography and Cryptographic techniques
1) Cryptography originated from the inherent human needs to communicate selectively and share information privately.
2) Early forms of cryptography included hieroglyphs and cipher techniques used by ancient Egyptian and Roman civilizations.
3) Modern cryptography is based on mathematical concepts from fields like number theory and uses algorithms like symmetric encryption, asymmetric encryption, hashing, and steganography to provide security services like confidentiality, integrity, authentication, and non-repudiation.
Cryptography
This document provides an overview of cryptography. It begins by defining cryptography as the science of encrypting and decrypting written communications. It then discusses the history of cryptography dating back to ancient Egypt and the Spartans. The document outlines some common cryptosystem services like confidentiality, integrity, and authentication. It also discusses key concepts like keyspace, symmetric and asymmetric encryption algorithms like AES and RSA, and hybrid encryption approaches. The presentation concludes by thanking the audience and offering to answer any questions.
Cryptography cse,ru
This presentation contains the basics of cryptography. I have developed this presentation as a course material of Cryptography during my honors final year examination
Overview Of Cryptography
Cryptography is a method of securing communication and information by encoding messages in such a way that only authorized parties can access it. It involves encrypting plaintext using an algorithm and key to create ciphertext, which can then be decrypted using the same key. Common uses of cryptography include ensuring data privacy, authenticity, integrity, and non-repudiation. Symmetric key encryption uses the same key for encryption and decryption while asymmetric key encryption uses different public and private keys.
5 Cryptography Part1
The document discusses the Cryptography domain of the CISSP exam, which addresses principles and methods for ensuring information security. It covers topics like cryptography terms and history, different types of ciphers and cryptographic algorithms, and utilization of cryptography in technologies like PKI and protocols. The document also provides sample questions to test understanding of cryptography concepts.
Lecture 5 - Cryptography.pptx
This document provides an agenda and overview of topics related to cryptography. It discusses what cryptography is, the goals of cryptography including confidentiality, integrity, authentication and non-repudiation. It then covers terminologies used in cryptography and different types of cryptography including symmetric cryptography, asymmetric cryptography and digital signatures. It also mentions attacks on cryptography.
Ccn presentation
Cryptography is the practice of hiding information by converting intelligible data into unintelligible ciphertext, and back again. It provides confidentiality, integrity, and authentication. There are three eras of cryptography - manual using pen and paper, mechanical using cipher machines, and modern using computers. Encryption is converting plaintext to ciphertext while decryption is converting ciphertext back to plaintext. Symmetric cryptography uses a single shared key for encryption and decryption, while asymmetric cryptography uses public and private key pairs.
CRYPTOGRAPHY AND NETWORK SECURITY
BEGINS FROM SCRATCH TO FUTURE METHODS OF CRYPTOGRAPHY. PROVIDES A DEEP INSIGHT INTO HISTORY,USES,APPLICATION,DIFFERENT TYPES AND METHODS OF CRYPTOGRAPHY. THANK YOU
Cryptography
This document provides an introduction to cryptography. It defines cryptography as the practice of hiding information and discusses its importance for secure communication. The document outlines the basic components of cryptography including plaintext, encryption, ciphertext, decryption, and keys. It also describes different types of cryptographic algorithms like the Caesar cipher and symmetric and asymmetric key cryptography. The document concludes by emphasizing the importance of implementing cryptography for network security.
Dr Petar Radanliev, PhD Thesis Department of Computer Sciences, University of...
Dr Petar Radanliev, PhD Thesis
Department of Computer Sciences, University of Oxford
Public Key Cryptography and potential attacks on PK
More Related Content
What's hot
Securing Text Messages Application Using MED
Implementing hybrid security algorithm in securing data.
-Introduction
-Problem statement
-Objective
-Process model
-Public key cryptosystem
-Data model
-Proposed model
-Encryption and decryption process
-Proof of concept
* netbeans 8.1 *xampp *database
*java programming language
-Expected results
*performance for key generation, encryption and decryption
*graph
-References
Encryption
Encryption encodes information to protect it from unauthorized access. It involves two processes - encryption scrambles the information using an algorithm, while decryption reverses the process to restore the original information. There are two main methods: symmetric key encryption uses the same key to encrypt and decrypt, while asymmetric key encryption uses separate public and private keys.
Cryptography
This document provides an overview of cryptography concepts including:
- A brief history of cryptography from manual ciphers to modern computer-based systems.
- Key terms like plaintext, ciphertext, and keyspace.
- Types of cryptographic methods including symmetric, asymmetric, and hashing algorithms.
- Public key infrastructure components like certificates and certificate authorities.
- Cryptanalysis techniques for attacking cryptosystems such as brute force and social engineering attacks.
- Applications of cryptography including email security, network security protocols like SSL/TLS, and IPSec.
Ss
Computer encryption uses cryptography to secure online transactions. There are two main types of encryption: symmetric-key encryption where both computers share the same key, and public-key encryption which uses different keys for encryption and decryption. Encryption encodes data during transmission while authentication verifies the identity of the sender and confirms the data has not been altered. Together, encryption and authentication create a secure online environment for sharing information.
Android based message encryption decryption using matrix
Abstract
In this paper we are going to encrypt plain text to encrypted text. Message encryption is character value based encryption in which 3D message character matrix is replaced with 2D encryption value matrix. It can also know by some kind of message masking which work on upper level to provide maximum security. Password protection increases encrypted message file security.
Keywords – Matrix, ASCII Offset Value, DES, 3D Message Masking, and 2D.
Cryptography 1
This document provides an overview of cryptography concepts including encryption, decryption, ciphers, block ciphers, stream ciphers, data encryption standards (DES), pseudo-random functions and permutations (PRFs and PRPs), integrity, key exchange, and public key encryption. Cryptography is the process of converting plain text to unintelligible ciphertext and vice versa. Encryption converts plain text to ciphertext while decryption converts ciphertext back to plain text. Ciphers and algorithms like DES are used to encrypt data using symmetric or asymmetric keys.
Dissemination of knowledge on Secure Systems Engineering
This document provides an overview of topics related to secure systems engineering including cryptography, digital signatures, blockchains, and privacy technologies. It discusses cryptography concepts like symmetric and asymmetric encryption. Digital signatures are explained as a method to authenticate messages using public/private key pairs. Blockchains are described as a method to securely record transactions in a distributed ledger using hashes. Privacy-preserving technologies like zero-knowledge proofs, Zcash, and garbled circuits are also introduced.
Singapore Korea IT Symposium 2018 - SovereignWallet Network
Seokgu Yun - Founder and CTO of SovereignWallet Network
Messenger-Style Cryptocurrency Wallet with Banking-grade Security
July13th 2018, Intercontinental(Bugis) | Grand Ballrom (2F)
What's hot (8)
Android based message encryption decryption using matrix
Android based message encryption decryption using matrix
Dissemination of knowledge on Secure Systems Engineering
Dissemination of knowledge on Secure Systems Engineering
Singapore Korea IT Symposium 2018 - SovereignWallet Network
Singapore Korea IT Symposium 2018 - SovereignWallet Network
Similar to Cryptography
Cryptography : The Art of Secured Messaging
Cryptography is the art of securing messages by encrypting information into an unreadable cipher text format that can only be decrypted by those with the secret key. Modern cryptography techniques are virtually unbreakable. Cryptography is commonly used to protect email, credit cards, and corporate data on the internet. There are two main types of cryptography - symmetric which uses one shared key for encryption and decryption, and asymmetric which uses two mathematically related keys, a public and private key. Cryptography ensures confidentiality, integrity, and authenticity of messages.
Fundamentals of cryptography
Introduction to Cryptography, Fundamentals of cryptography, Encryption, Decryption, Plaintext, Ciphertext, Public key cryptography, Secret key cryptography, steam cipher, block cipher, transposition cipher, security of cryptographic algorithm, cipher attack,
Introduction to Cryptography
Cryptography is the practice of securing communication and information by converting plaintext into ciphertext. The document provides an introduction to cryptography including its history from ancient times to the present. It discusses terminology like plaintext, encryption, ciphertext, decryption, and keys. Symmetric key cryptography uses a single key for encryption and decryption while asymmetric key cryptography uses two different keys. Examples of symmetric methods are DES, 3DES, AES, and RC4, while RSA is a common asymmetric method. Applications of cryptography include ATMs, email passwords, e-payments, e-commerce, electronic voting, defense services, securing data, and access control.
My cryptography
A short ppt on Cryptography . It contains just an abstract idea of Cryptography presented by Me for College
Presentation .
Evolution of Cryptography and Cryptographic techniques
1) Cryptography originated from the inherent human needs to communicate selectively and share information privately.
2) Early forms of cryptography included hieroglyphs and cipher techniques used by ancient Egyptian and Roman civilizations.
3) Modern cryptography is based on mathematical concepts from fields like number theory and uses algorithms like symmetric encryption, asymmetric encryption, hashing, and steganography to provide security services like confidentiality, integrity, authentication, and non-repudiation.
Cryptography
This document provides an overview of cryptography. It begins by defining cryptography as the science of encrypting and decrypting written communications. It then discusses the history of cryptography dating back to ancient Egypt and the Spartans. The document outlines some common cryptosystem services like confidentiality, integrity, and authentication. It also discusses key concepts like keyspace, symmetric and asymmetric encryption algorithms like AES and RSA, and hybrid encryption approaches. The presentation concludes by thanking the audience and offering to answer any questions.
Cryptography cse,ru
This presentation contains the basics of cryptography. I have developed this presentation as a course material of Cryptography during my honors final year examination
Overview Of Cryptography
Cryptography is a method of securing communication and information by encoding messages in such a way that only authorized parties can access it. It involves encrypting plaintext using an algorithm and key to create ciphertext, which can then be decrypted using the same key. Common uses of cryptography include ensuring data privacy, authenticity, integrity, and non-repudiation. Symmetric key encryption uses the same key for encryption and decryption while asymmetric key encryption uses different public and private keys.
5 Cryptography Part1
The document discusses the Cryptography domain of the CISSP exam, which addresses principles and methods for ensuring information security. It covers topics like cryptography terms and history, different types of ciphers and cryptographic algorithms, and utilization of cryptography in technologies like PKI and protocols. The document also provides sample questions to test understanding of cryptography concepts.
Lecture 5 - Cryptography.pptx
This document provides an agenda and overview of topics related to cryptography. It discusses what cryptography is, the goals of cryptography including confidentiality, integrity, authentication and non-repudiation. It then covers terminologies used in cryptography and different types of cryptography including symmetric cryptography, asymmetric cryptography and digital signatures. It also mentions attacks on cryptography.
Ccn presentation
Cryptography is the practice of hiding information by converting intelligible data into unintelligible ciphertext, and back again. It provides confidentiality, integrity, and authentication. There are three eras of cryptography - manual using pen and paper, mechanical using cipher machines, and modern using computers. Encryption is converting plaintext to ciphertext while decryption is converting ciphertext back to plaintext. Symmetric cryptography uses a single shared key for encryption and decryption, while asymmetric cryptography uses public and private key pairs.
CRYPTOGRAPHY AND NETWORK SECURITY
BEGINS FROM SCRATCH TO FUTURE METHODS OF CRYPTOGRAPHY. PROVIDES A DEEP INSIGHT INTO HISTORY,USES,APPLICATION,DIFFERENT TYPES AND METHODS OF CRYPTOGRAPHY. THANK YOU
Cryptography
This document provides an introduction to cryptography. It defines cryptography as the practice of hiding information and discusses its importance for secure communication. The document outlines the basic components of cryptography including plaintext, encryption, ciphertext, decryption, and keys. It also describes different types of cryptographic algorithms like the Caesar cipher and symmetric and asymmetric key cryptography. The document concludes by emphasizing the importance of implementing cryptography for network security.
Dr Petar Radanliev, PhD Thesis Department of Computer Sciences, University of...
Dr Petar Radanliev, PhD Thesis
Department of Computer Sciences, University of Oxford
Public Key Cryptography and potential attacks on PK
Cryptography ppt
The internet is the internationally connected network of computer networks with addresses that are administrated by IANA
Computer Security (Cryptography) Ch01
This document discusses computer security and network cryptography. It begins by explaining how organizations can use cryptosystems like symmetric and asymmetric encryption to protect data. Symmetric encryption is faster but requires secure key exchange, while asymmetric encryption uses public and private key pairs. The document then defines cryptography terminology and components like plaintext, ciphertext, encryption, decryption, and cryptanalysis. It describes techniques like substitution and transposition ciphers. The rest of the document discusses encryption models, algorithms, and cryptanalysis methods like ciphertext-only and known-plaintext attacks.
Cryptography by manisha jha
This document provides an overview of cryptography. It defines cryptography as the practice of securing communications through codes and algorithms. The document then discusses features of cryptography like confidentiality and integrity. It provides an example of a basic cryptography technique using a letter substitution cipher. Additionally, it outlines different types of ciphers and cryptography techniques, including symmetric key cryptography, hash functions, and asymmetric key cryptography. The document aims to introduce fundamental concepts in the field of cryptography.
Cryptography by Durlab Kumbhakar
Cryptography is the practice of hiding information to store or communicate it in a secure way. It allows for confidentiality, integrity, and authentication of messages. There are two main types: symmetric key cryptography which uses a single key for encryption and decryption, and asymmetric key cryptography which uses different public and private keys. Popular symmetric algorithms include AES and DES, while RSA is an example of an asymmetric algorithm. The seminar discussed the components, processes, and applications of cryptography as well as examples of algorithms and common attacks.
PresentationonCRYPTOGRAPHYppt.ppt - Read-Only - Compatibility Mode.ppt
This document provides an overview of cryptography. It defines cryptography as the practice of hiding information and discusses its purposes, including authentication, privacy, integrity, and non-repudiation. The document outlines the basic architecture of cryptography, including secret key cryptography, public key cryptography, hash functions, and types of cryptographic attacks. It describes the processes of public/private key cryptography and different types of cryptographic algorithms.
Cryptography
This document discusses the science of encryption through three main topics: the purpose and history of cryptography, modern cryptography techniques, and password security. It describes cryptography as the science of secure communications and its goals of authentication, privacy, integrity, and non-repudiation. The history of cryptography is divided into ancient uses and electro-mechanical machines of World War II. Modern techniques discussed are secret key cryptography, hash functions, and public key cryptography. It emphasizes the importance of strong, unique passwords for security.
Similar to Cryptography (20)
Evolution of Cryptography and Cryptographic techniques
Evolution of Cryptography and Cryptographic techniques
Dr Petar Radanliev, PhD Thesis Department of Computer Sciences, University of...
Dr Petar Radanliev, PhD Thesis Department of Computer Sciences, University of...
PresentationonCRYPTOGRAPHYppt.ppt - Read-Only - Compatibility Mode.ppt
PresentationonCRYPTOGRAPHYppt.ppt - Read-Only - Compatibility Mode.ppt
Recently uploaded
The Ipsos - AI - Monitor 2024 Report.pdf
According to Ipsos AI Monitor's 2024 report, 65% Indians said that products and services using AI have profoundly changed their daily life in the past 3-5 years.
Open Source Contributions to Postgres: The Basics POSETTE 2024
Postgres is the most advanced open-source database in the world and it's supported by a community, not a single company. So how does this work? How does code actually get into Postgres? I recently had a patch submitted and committed and I want to share what I learned in that process. I’ll give you an overview of Postgres versions and how the underlying project codebase functions. I’ll also show you the process for submitting a patch and getting that tested and committed.
End-to-end pipeline agility - Berlin Buzzwords 2024
We describe how we achieve high change agility in data engineering by eliminating the fear of breaking downstream data pipelines through end-to-end pipeline testing, and by using schema metaprogramming to safely eliminate boilerplate involved in changes that affect whole pipelines.
A quick poll on agility in changing pipelines from end to end indicated a huge span in capabilities. For the question "How long time does it take for all downstream pipelines to be adapted to an upstream change," the median response was 6 months, but some respondents could do it in less than a day. When quantitative data engineering differences between the best and worst are measured, the span is often 100x-1000x, sometimes even more.
A long time ago, we suffered at Spotify from fear of changing pipelines due to not knowing what the impact might be downstream. We made plans for a technical solution to test pipelines end-to-end to mitigate that fear, but the effort failed for cultural reasons. We eventually solved this challenge, but in a different context. In this presentation we will describe how we test full pipelines effectively by manipulating workflow orchestration, which enables us to make changes in pipelines without fear of breaking downstream.
Making schema changes that affect many jobs also involves a lot of toil and boilerplate. Using schema-on-read mitigates some of it, but has drawbacks since it makes it more difficult to detect errors early. We will describe how we have rejected this tradeoff by applying schema metaprogramming, eliminating boilerplate but keeping the protection of static typing, thereby further improving agility to quickly modify data pipelines without fear.
一比一原版(UCSF文凭证书)旧金山分校毕业证如何办理
毕业原版【微信:176555708】【(UCSF毕业证书)旧金山分校毕业证】【微信:176555708】成绩单、外壳、offer、留信学历认证（永久存档真实可查）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信176555708】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信176555708】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：客户在留信官方认证查询网站查询到认证通过结果后付款，不成功不收费！
06-12-2024-BudapestDataForum-BuildingReal-timePipelineswithFLaNK AIM
06-12-2024-BudapestDataForum-BuildingReal-timePipelineswithFLaNK AIM
by
Timothy Spann
Principal Developer Advocate
https://budapestdata.hu/2024/en/
https://budapestml.hu/2024/en/
tim.spann@zilliz.com
https://www.linkedin.com/in/timothyspann/
https://x.com/paasdev
https://github.com/tspannhw
https://www.youtube.com/@flank-stack
milvus
vector database
gen ai
generative ai
deep learning
machine learning
apache nifi
apache pulsar
apache kafka
apache flink
Population Growth in Bataan: The effects of population growth around rural pl...
A population analysis specific to Bataan.
ViewShift: Hassle-free Dynamic Policy Enforcement for Every Data Lake
Dynamic policy enforcement is becoming an increasingly important topic in today’s world where data privacy and compliance is a top priority for companies, individuals, and regulators alike. In these slides, we discuss how LinkedIn implements a powerful dynamic policy enforcement engine, called ViewShift, and integrates it within its data lake. We show the query engine architecture and how catalog implementations can automatically route table resolutions to compliance-enforcing SQL views. Such views have a set of very interesting properties: (1) They are auto-generated from declarative data annotations. (2) They respect user-level consent and preferences (3) They are context-aware, encoding a different set of transformations for different use cases (4) They are portable; while the SQL logic is only implemented in one SQL dialect, it is accessible in all engines.
#SQL #Views #Privacy #Compliance #DataLake
一比一原版(GWU,GW文凭证书)乔治·华盛顿大学毕业证如何办理
毕业原版【微信:176555708】【(GWU,GW毕业证书)乔治·华盛顿大学毕业证】【微信:176555708】成绩单、外壳、offer、留信学历认证（永久存档真实可查）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信176555708】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信176555708】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：客户在留信官方认证查询网站查询到认证通过结果后付款，不成功不收费！
一比一原版(UCSB文凭证书)圣芭芭拉分校毕业证如何办理
毕业原版【微信:176555708】【(UCSB毕业证书)圣芭芭拉分校毕业证】【微信:176555708】成绩单、外壳、offer、留信学历认证（永久存档真实可查）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信176555708】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信176555708】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：客户在留信官方认证查询网站查询到认证通过结果后付款，不成功不收费！
一比一原版(UO毕业证)渥太华大学毕业证如何办理
UO毕业证录取书【微信95270640】购买（渥太华大学毕业证成绩单硕士学历）Q微信95270640代办UO学历认证留信网伪造渥太华大学学位证书精仿渥太华大学本科/硕士文凭证书补办渥太华大学 diplomaoffer,Transcript购买渥太华大学毕业证成绩单购买UO假毕业证学位证书购买伪造渥太华大学文凭证书学位证书,专业办理雅思、托福成绩单，学生ID卡，在读证明，海外各大学offer录取通知书，毕业证书，成绩单，文凭等材料:1:1完美还原毕业证、offer录取通知书、学生卡等各种在读或毕业材料的防伪工艺（包括 烫金、烫银、钢印、底纹、凹凸版、水印、防伪光标、热敏防伪、文字图案浮雕，激光镭射，紫外荧光，温感光标）学校原版上有的工艺我们一样不会少，不论是老版本还是最新版本，都能保证最高程度还原，力争完美以求让所有同学都能享受到完美的品质服务。
文凭办理流程：
1客户提供办理信息：姓名生日专业学位毕业时间等（如信息不确定可以咨询顾问：微信95270640我们有专业老师帮你查询）；
2开始安排制作毕业证成绩单电子图；
3毕业证成绩单电子版做好以后发送给您确认；
4毕业证成绩单电子版您确认信息无误之后安排制作成品；
5成品做好拍照或者视频给您确认；
6快递给客户（国内顺丰国外DHLUPS等快读邮寄）。
7完成交易删除客户资料
高精端提供以下服务：
一：渥太华大学渥太华大学毕业证文凭证书全套材料从防伪到印刷水印底纹到钢印烫金
二：真实使馆认证（留学人员回国证明）使馆存档
三：真实教育部认证教育部存档教育部留服网站可查
四：留信认证留学生信息网站可查
五：与学校颁发的相关证件1:1纸质尺寸制定（定期向各大院校毕业生购买最新版本毕,业证成绩单保证您拿到的是鲁昂大学内部最新版本毕业证成绩单微信95270640）
A.为什么留学生需要操作留信认证?
留信认证全称全国留学生信息服务网认证,隶属于北京中科院。①留信认证门槛条件更低,费用更美丽,并且包过,完单周期短,效率高②留信认证虽然不能去国企,但是一般的公司都没有问题,因为国内很多公司连基本的留学生学历认证都不了解。这对于留学生来说,这就比自己光拿一个证书更有说服力,因为留学学历可以在留信网站上进行查询!
B.为什么我们提供的毕业证成绩单具有使用价值？
查询留服认证是国内鉴别留学生海外学历的唯一途径但认证只是个体行为不是所有留学生都操作所以没有办理认证的留学生的学历在国内也是查询不到的他们也仅仅只有一张文凭。所以这时候我们提供的和学校颁发的一模一样的毕业证成绩单就有了使用价值。只硕大的蛇皮袋手里拎着长铁钩正站在门口朝黑色的屋内张望不好坏人小偷山娃一怔却也灵机一动立马仰起头双手拢在嘴边朝楼上大喊：“爸爸爸——有人找——那人一听朝山娃尴尬地笑笑悻悻地走了山娃立马“嘭的一声将铁门锁死心却咚咚地乱跳当山娃跟父亲说起这事时父亲很吃惊抚摸着山娃的头说还好醒得及时要不家早被人掏空了到时连电视也没得看啰不过父亲还是夸山娃能临危不乱随机应变有胆有谋山娃笑笑说那都是书上学的看童话和小说时多
4th Modern Marketing Reckoner by MMA Global India & Group M: 60+ experts on W...
The Modern Marketing Reckoner (MMR) is a comprehensive resource packed with POVs from 60+ industry leaders on how AI is transforming the 4 key pillars of marketing – product, place, price and promotions.
原版一比一利兹贝克特大学毕业证(LeedsBeckett毕业证书)如何办理
原版制作【微信:41543339】【利兹贝克特大学毕业证(LeedsBeckett毕业证书)】【微信:41543339】《成绩单、外壳、雅思、offer、真实留信官方学历认证（永久存档/真实可查）》采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路）我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信41543339】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信41543339】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：客户在留信官方认证查询网站查询到认证通过结果后付款，不成功不收费！
Experts live - Improving user adoption with AI
Bekijk de slides van onze sessie Enhancing Modern Workplace Efficiency op Experts Live 2024.
Intelligence supported media monitoring in veterinary medicine
Media monitoring in veterinary medicien
STATATHON: Unleashing the Power of Statistics in a 48-Hour Knowledge Extravag...
"Join us for STATATHON, a dynamic 2-day event dedicated to exploring statistical knowledge and its real-world applications. From theory to practice, participants engage in intensive learning sessions, workshops, and challenges, fostering a deeper understanding of statistical methodologies and their significance in various fields."
Recently uploaded (20)
Open Source Contributions to Postgres: The Basics POSETTE 2024
Open Source Contributions to Postgres: The Basics POSETTE 2024
End-to-end pipeline agility - Berlin Buzzwords 2024
End-to-end pipeline agility - Berlin Buzzwords 2024
06-12-2024-BudapestDataForum-BuildingReal-timePipelineswithFLaNK AIM
06-12-2024-BudapestDataForum-BuildingReal-timePipelineswithFLaNK AIM
Population Growth in Bataan: The effects of population growth around rural pl...
Population Growth in Bataan: The effects of population growth around rural pl...
DATA COMMS-NETWORKS YR2 lecture 08 NAT & CLOUD.docx
DATA COMMS-NETWORKS YR2 lecture 08 NAT & CLOUD.docx
ViewShift: Hassle-free Dynamic Policy Enforcement for Every Data Lake
ViewShift: Hassle-free Dynamic Policy Enforcement for Every Data Lake
Udemy_2024_Global_Learning_Skills_Trends_Report (1).pdf
Udemy_2024_Global_Learning_Skills_Trends_Report (1).pdf
4th Modern Marketing Reckoner by MMA Global India & Group M: 60+ experts on W...
4th Modern Marketing Reckoner by MMA Global India & Group M: 60+ experts on W...
Challenges of Nation Building-1.pptx with more important
Challenges of Nation Building-1.pptx with more important
Intelligence supported media monitoring in veterinary medicine
Intelligence supported media monitoring in veterinary medicine
STATATHON: Unleashing the Power of Statistics in a 48-Hour Knowledge Extravag...
STATATHON: Unleashing the Power of Statistics in a 48-Hour Knowledge Extravag...
Cryptography
- 2. •Cryptography is the science and art of transforming messages to make them secure and immune to attack.
- 3. Origin of Cryptography: • The first known evidence of cryptography can be traced to the use of ‘hieroglyph’. Some 4000 years ago, the Egyptians used to communicate by messages written in hieroglyph. • The most widely known rotor cipher device is the German Enigma machine used during World War II, of which there were a number of variants. • the Zimmermann Telegram triggered the United States' entry into World War I.
- 4. • A Purpose of cryptography: The main purpose of cryptography is to defend the transmitted information and it plays an important role in the following: • Authentication • Data confidentiality • Data integrity • Non-repudiation
- 6. How Does a Substitution algorithm works: Substitution Cipher Method of encryption by which units of plaintext are replaced with cipher text, according to a fixed system; the “units” may be single letters (the most common), pairs of letters, triplets of letters, mixtures of the above, and so forth.
- 7. • Cryptography is an actively developed library that provides cryptographic recipes and primitives. It supports Python 2.6-2.7 and Python 3.3+. • cryptography is divided into two layers of recipes and hazardous materials (hazmat). The recipes layer provides a simple API for proper symmetric encryption and the hazmat layer provides low- level cryptographic primitives. Lib:
- 8. Types: • Secret Key Cryptography (SKC): Uses a single key for both encryption and decryption; also called symmetric encryption. Primarily used for privacy and confidentiality. • Public Key Cryptography (PKC): Uses one key for encryption and another for decryption; also called asymmetric encryption. Primarily used for authentication, non-repudiation, and key exchange. • Hash Functions: Uses a mathematical transformation to irreversibly "encrypt" information, providing a digital fingerprint. Primarily used for message integrity.
- 10. Applications: • Authentication/Digital Signatures • Time Stamping • Electronic Money • Disk Encryption • Secure Network Communications
- 11. References: • https://www.garykessler.net/library/crypto.html • https://intellipaat.com/blog/tutorial/ethical-hacking-cyber- security-tutorial/encryption-techniques/ • https://www.youtube.com/watch?v=9-Yw434IbVM • https://en.wikipedia.org/wiki/Cryptography