“Do-it-yourself” cryptography

New data communications services such as electronic data interchange, which allows companies to contract for goods and services by electronic mail, will bring increasing need for cryptographic privacy transformations that are unique to a group of participants. Participation of outsiders in supplying...

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Bibliographic Details
Published in:Computers & security 1990-11, Vol.9 (7), p.613-619
Main Author: Carroll, John M.
Format: Article
Language:English
Subjects:
Algorithms
Binary-derivative testing
Block ciphers
Cybersecurity
Data communications
Data encryption
Electronic data interchange
Implementations
Random-number generation
Requirements
Stream ciphers
Symmetric ciphers
User-modified algorithms
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Description
Summary:New data communications services such as electronic data interchange, which allows companies to contract for goods and services by electronic mail, will bring increasing need for cryptographic privacy transformations that are unique to a group of participants. Participation of outsiders in supplying hardware or algorithms, or distributing keys may be regarded as unacceptable intrusion. This paper describes two ciphers: a block cipher, CRYPTO-MECCANO; and a stream cipher, CRYPTO-LEGGO. They exist in software and use so many keys that each implementation is a distinct cipher system. Tests suggest either one can provide stronger protection than the Data Encryption Standard (DES). CRYPTO-MECCANO has been submitted to the European RIPE/RACE Consortium as a candidate algorithm to replace DES as a cryptographic primitive for integrity assurance.
ISSN:0167-4048
1872-6208
DOI:10.1016/0167-4048(90)90060-7