Cipher definition in Computer Security terms:

Acronym(s): None

Definition(s): Series of transformations that converts plaintext to ciphertext using the Cipher Key.
Source(s): FIPS 197
CNSSI 4009-2015 (FIPS 197)

Any cryptographic system in which arbitrary symbols or groups of symbols, represent units of plain text, or in which units of plain text are rearranged, or both.
Source(s): CNSSI 4009-2015

Synonym(s): None


reference: CSRC Glossary