In open systems, the technique used by layered protocols in which a lower layer protocol accepts a message from a higher layer protocol and places it in the data portion of a frame in the lower layer.

1. [To] Convert plain text into an unintelligible form by means of a cipher. [NIS]
2. [To] convert plain text to cipher text by means of a cryptographic system. [INFOSEC-99]

The cryptographic transformation of data (see cryptography) to produce ciphertext [7498-2]. Note Encipherment may be irreversible, in which case the corresponding decipherment process cannot feasibly be performed.

1. To convert data by the use of a code, frequently one consisting of binary numbers, in such a manner that reconversion to the original form is possible.
2. [To] Convert plain text to cipher text by means of a code. [INFOSEC-99]
3. To append redundant check symbols to a message for the purpose of generating an error detection and… (Read More →)

See analog-to-digital converter.

See analog encoding.

A law defining the relative values of the quantum steps used in quantizing and encoding signals.

1. [A] generic term encompassing encipher and encode. [INFOSEC-99]
2. To convert plain text into unintelligible forms by means of a cryptosystem.
Note: The term encrypt covers the meanings of encipher and encode. [JP1-02]

See encipherment [7498-2]

1. In cryptography, a set of mathematically expressed processes for rendering information into apparently meaningless form by developing a series of transformations to the normal representation of the information through the use of variable elements controlled by the use of a key. [After X9.65]
2. [A] set of mathematically expressed rules for rendering data unintelligible by executing a series of… (Read More →)