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  1. Cipher - Wikipedia

    In cryptography, a cipher (or cypher) is an algorithm for performing encryption or decryption —a series of well-defined steps that can be followed as a procedure. An alternative, less common …

  2. What is Cipher? - GeeksforGeeks

    Jul 23, 2025 · Cipher is used in securing financial transactions, protecting information, and maintaining the confidentiality of communication among many others. This article focuses on …

  3. Cipher | Definition, Types, & Facts | Britannica

    Cipher, any method of transforming a message to conceal its meaning. The term is also used synonymously with ciphertext or cryptogram in reference to the encrypted form of the …

  4. What Is A Cipher? | JSCAPE

    A cipher is simply a method for encrypting (and decrypting) messages. To understand what I mean, let me give you an example. Note: Ciphers are also known as encryption algorithms, so …

  5. What is a Cipher? Definition, Types, Examples and Methods

    Apr 4, 2025 · Cipher is a frequently used algorithm in cryptology, a subject concerned with the study of cryptographic algorithms. It is a method of encrypting and decrypting data. The …

  6. What Is a Cipher? Definition, Purpose, and Types - NinjaOne

    Aug 13, 2025 · Cipher Definition: A cipher is an encryption algorithm used to convert plaintext into unreadable ciphertext and vice versa, forming the foundation of data security and …

  7. What is a Cipher? | Security Encyclopedia - HYPR Corp

    Ciphers, also called encryption algorithms, are systems for encrypting and decrypting data. A cipher converts the original message, called plaintext, into ciphertext using a key to determine …

  8. What Is a Cipher? - Computer Hope

    Sep 7, 2025 · A cipher is an algorithm that encodes or encrypts data. Text that is "ciphered" (processed with a cipher, encrypted) cannot be read unless the original algorithm is known or …

  9. What is Cipher? - Definition from Amazing Algorithms

    A cipher, also known as an encryption algorithm, is a systematic process for transforming plaintext into ciphertext. Plaintext is the original, unencrypted message, while ciphertext is the …

  10. Cipher - Glossary | MDN

    Jul 11, 2025 · In cryptography, a cipher is an algorithm that can encrypt plaintext to make it unreadable, and to decrypt the encoded data back to plaintext again.