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 …

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 …

There are many types of ciphers in the world. Discover them all here, from classic substitution ciphers to musical cryptograms and the crypto punk movement.

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 …

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

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 …

cipher noun [C] (SECRET WRITING) Add to word list a system of writing that most people cannot understand, so that the message is secret; a code:

Identify cipher type from symbols, numbers, or encrypted text. Use this cipher identifier to analyze formats, spot patterns, and detect classic and custom encryption.

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 uses …