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Cryptology
- Cryptology, which encompasses both cryptography and cryptanalysis, is deeply rooted in computer science and advanced mathematics.
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Cryptography is the practice of developing and using coded algorithms to protect and obscure transmitted information so that it may only be read by those with the permission and ability to decrypt it. Put differently, cryptography obscures communications so that unauthorized parties are unable to access them.
A common cryptography definition is the practice of coding information to ensure only the person that a message was written for can read and process the information. This cybersecurity practice, also known as cryptology, combines various disciplines like computer science, engineering, and mathematics to create complex codes that hide the true ...
Cryptography is a method of protecting information and communications using codes, so that only those for whom the information is intended can read and process it. In computer science, cryptography refers to secure information and communication techniques derived from mathematical concepts and a set of rule-based calculations called algorithms ...
- Kathleen Richards
Cryptography, or cryptology (from Ancient Greek: κρυπτός, romanized :kryptós "hidden, secret"; and γράφειν graphein, "to write", or -λογία -logia, "study", respectively [1] ), is the practice and study of techniques for secure communication in the presence of adversarial behavior. [2] .
- 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?
May 22, 2022 · Cryptography is the art of keeping information secure by transforming it into form that unintended recipients cannot understand.
Cryptography has a rich history and plays a crucial role in modern communication networks. Learn about data encryption techniques through an example where Alice and Bob use secret codes (ciphers) to communicate privately.
- 2 min
- Brit Cruise
