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Ulm's Oberon Library:
CBCMode

NAME

CBCMode - a special mode of operation for block ciphers

SYNOPSIS

PROCEDURE Create (VAR new: Ciphers.Cipher; old: BlockCiphers.Cipher);

DESCRIPTION

CBCMode supports a special mode of operation for block ciphers, the so called Cipher Block Chaining. If a block cipher is used in this mode blocks are not encrypted seperately anymore but depend on all previously encrypted blocks.

Create creates a cipher new which operates like the block cipher old in cipher block chaining mode.

AUTHOR

Michael Szczuka, University of Ulm

Edited by: borchert, last change: 1995/11/14, revision: 1.1, converted to HTML: 1997/04/28