A system of encryption in which each letter of a message is replaced with another character, but retains its position within the message.
A class of cipher that is occasionally used as a Gimmick in Thematic Cryptic Crosswords. In a substitution cipher, each letter of the alphabet is consistently replaced by another. The replacement is usually systematic: for example, involving a constant letter shift (a Caesar shift cipher) or a keyword as in this example using the key phrase "Judgment of Paris".
a cipher that replaces each plaintext symbol with another ciphertext symbol
an encoding process that maintains the order of the letters in the message, but changes their identity
a way of encrypt ing a message where symbols(characters/icons/letters/etc) are associated with letters of the plain alphabet
a simple cipher that replaces each instance of a particular cleartext letter with a matching ciphertext letter - all cleartext 'A's would become ciphertext 'F's.
Cipher in which characters in plaintext are substituted for characters in ciphertext
A method of encrypting a message where the characters of the plaintext are in the same order but switched to other characters.
A cipher in which the characters of a plaintext string are substituted with other characters to form the cipher text. See also: cipher, ciphertext
The characters of the plain text are substituted with other characters to form the cipher text.
A method of hiding text in which plaintext letters are replaced by ciphertext letters or symbols. It is one technique used in the Data Encryption Standard (DES).
In cryptography, a substitution cipher is a method of encryption by which units of plaintext are substituted with ciphertext according to a regular system; the "units" may be single letters (the most common), pairs of letters, triplets of letters, mixtures of the above, and so forth. The receiver deciphers the text by performing an inverse substitution.