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.

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 message. All …

Feb 26, 2025 · Over thousands of years, ciphers have evolved from coded messages into the creative arts and became part of a movement called Cypherpunk, at the heart of cryptocurrency, bitcoin and …

Tool for encoding and decoding with the Caesar cipher, a simple and famous shift cipher that replaces each letter with another one further down the alphabet. Compatible with ROT13 and other variants.

Cipher Identifier Stuck with a cipher or secret code? This free tool will help you identify the type of encryption, as well as give you guidance about solving it and any available cipher decoder. This tool …

Noun a cipher that can't be decoded She was nothing more than a cipher. Verb were surprised by how much we had spent on the cruise after we had ciphered out the grand total

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 cryptographic …