(DoD) Any cryptographic system in which arbitrary symbols (or groups of symbols) represent units of plain text of regular length, usually single letters; units of plain text are rearranged; or both, in accordance with certain predetermined rules. See also cryptosystem.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
| APA | Military Dictionary (DoD). (2011). cipher. Retrieved September 20, 2026, from http://smartdefine.org/cipher/definitions/1960763 |
| Chicago | Military Dictionary (DoD). 2011. "cipher" http://smartdefine.org/cipher/definitions/1960763 (accessed September 20, 2026). |
| Harvard | Military Dictionary (DoD) 2011, cipher, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/cipher/definitions/1960763>. |
| MLA | Military Dictionary (DoD). "cipher" 4 April 2011. Web. 20 September 2026. <http://smartdefine.org/cipher/definitions/1960763> |