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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 …

  2. Cryptography and its Types - GeeksforGeeks

    Aug 7, 2025 · Cryptography is a technique of securing information and communications using codes to ensure confidentiality, integrity and authentication. Thus, preventing unauthorized …

  3. What is cryptography? - IBM

    Cryptography is the practice of developing and using coded algorithms to protect and obscure transmitted information.

  4. What is Cryptography? Definition, Types and Techniques

    Mar 13, 2024 · Types of cryptography Single-key or symmetric-key encryption algorithms create a fixed length of bits known as a block cipher with a secret key that the creator/sender uses to …

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

    Cryptography is the process of hiding or coding information so only the intended recipient can read a message. Discover how cryptography works and the potential risks it poses.

  6. Cryptography | NIST

    Cryptography uses mathematical techniques to transform data and prevent it from being read or tampered with by unauthorized parties. That enables exchanging secure messages even in …

  7. Cryptology - Encryption, Ciphers, Security | Britannica

    Oct 27, 2025 · Cryptology - Encryption, Ciphers, Security: Cryptography, as defined in the introduction to this article, is the science of transforming information into a form that is …

  8. Cryptography | Computer science theory - Khan Academy

    Cryptography challenge 101 Ready to try your hand at real-world code breaking? This programming challenge contains a beginner, intermediate, and advanced level. See how far …

  9. ISO - What is cryptography?

    Cryptography is an important computer security tool that deals with techniques to store and transmit information in ways that prevent unauthorized access or interference.

  10. What Is Cryptography and How Does It Work? - How-To Geek

    May 4, 2025 · Ever wondered how your online data and conversations stay secure from hackers and intruders? That’s the work of cryptography, a technology we rely on daily, often without …