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  1. Cryptography - Wikipedia

    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 …

  2. Cryptography and its Types - GeeksforGeeks

    Dec 12, 2025 · Cryptography is the science of protecting information using mathematical techniques to ensure confidentiality, integrity, and authentication. It transforms readable data into unreadable form, …

  3. What is cryptography? - IBM

    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.

  4. Lecturer: Ankur Moitra Crytography and Cryptology Cryptography is the art and science of keeping secrets. It can be traced back to ancient times, for example with the Caesar cipher that works as …

  5. What is Cryptography? Definition, Types and Techniques | TechTarget

    Mar 13, 2024 · In computer science, cryptography refers to secure information and communication techniques derived from mathematical concepts and a set of rule-based calculations called …

  6. Cryptology - Encryption, Ciphers, Security | Britannica

    Dec 5, 2025 · 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 …

  7. What is Cryptography? Definition, Importance, Types | Fortinet

    Cryptography is the process of hiding or coding information so that only the person a message was intended for can read it. The art of cryptography has been used to code messages for thousands of …

  8. Cryptography | NIST

    Cryptography uses mathematical techniques to protect the security of information.

  9. What is Cryptography? - Cryptography Explained - AWS

    Cryptography has its roots in sending sensitive information between military and political figures. Messages could be encrypted so that they appear to be random text to anyone but the intended …

  10. 8 Cryptography Techniques: Everything You Need to Know

    Oct 17, 2025 · The end objective of cryptography is to secure communication or set up a secure connection between two systems. In today’s topic we will learn about cryptography, why it is used, …