TERM

block

A bit string or bit vector of finite length. (See: bit, block cipher. Compare: byte, word.)

Updated

Jan 06, 2026

Senses

(I)

A bit string or bit vector of finite length. (See: bit, block cipher. Compare: byte, word.) Usage: An "N bit block" contains N bits, which usually are numbered from left to right as 1, 2, 3, ..., N.

A bit string or bit vector of finite length. (See: bit, block cipher. Compare: byte, word.)

Usage: An "N-bit block" contains N bits, which usually are numbered from left to right as 1, 2, 3, ..., N.

IETF RFC 4949 (Internet Security Glossary)

Bibliography

IETF RFC 4949 (Internet Security Glossary)
Accessed Jan 06, 2026Quoted
RFC 4949 — Internet Security Glossary (Version 2)
https://www.rfc-editor.org/rfc/rfc4949.txt
RFC 4949 is published by the IETF Trust and marked as "Distribution of this memo is unlimited". Verify IETF Trust copyright/licensing terms for reuse.
Source: IETF RFC 4949 (rfc-editor.org).