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What is cryptography in Computer Science?
What is the difference between cryptology and cryptography?
What is cryptography & how does it work?
What is the history of cryptography?
Modern cryptography exists at the intersection of the disciplines of mathematics, computer science, information security, electrical engineering, digital signal processing, physics, and others. Core concepts related to information security ( data confidentiality , data integrity , authentication , and non-repudiation ) are also central to ...
Cryptology, which encompasses both cryptography and cryptanalysis, is deeply rooted in computer science and advanced mathematics. The history of cryptography dates back to ancient times when Julius Caesar created the Caesar cipher to obscure the content of his messages from the messengers who carried them in the first century B.C..
- Overview
- About this unit
- Ancient cryptography
- Ciphers
- Cryptography challenge 101
- Modern cryptography
- Modular arithmetic
- Primality test
- Randomized algorithms
About this unit
How have humans protected their secret messages through history? What has changed today?
Ancient cryptography
Explore how we have hidden secret messages through history.
How have humans protected their secret messages through history? What has changed today?
Explore how we have hidden secret messages through history.
Assess your understanding of the code breaking presented in the ancient cryptography lesson. This series of articles and exercises will prepare you for the upcoming challenge!
Ready to try your hand at real-world code breaking? This adventure contains a beginner, intermediate and super-advanced level. See how far you can go!
A new problem emerges in the 20th century. What happens if Alice and Bob can never meet to share a key in the first place?
This is a system of arithmetic for integers. These lessons provide a foundation for the mathematics presented in the Modern Cryptography tutorial.
Why do primes make some problems fundamentally hard? To find out we need to explore primality tests in more detail.
Would access to coin flips speed up a primality test? How would this work?
Cryptography, as defined in the introduction to this article, is the science of transforming information into a form that is impossible or infeasible to duplicate or undo without knowledge of a secret key.
cryptology, science concerned with data communication and storage in secure and usually secret form. It encompasses both cryptography and cryptanalysis. The term cryptology is derived from the Greek kryptós (“hidden”) and lógos (“word”).
May 22, 2022 · Cryptography is the art of keeping information secret and safe by transforming it into form that unintended recipients cannot understand. It makes secure data transmission over the internet...
In computer science, cryptography refers to secure information and communication techniques derived from mathematical concepts and a set of rule-based calculations called algorithms, to transform messages in ways that are hard to decipher.
