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MacGuffin (cipher)

In cryptography, MacGuffin is a block cipher created in 1994 by Bruce Schneier and Matt Blaze at a Fast Software Encryption workshop. It was intended as a catalyst for analysis of a new cipher structure, known as Generalized Unbalanced Feistel Networks (GUFNs). The cryptanalysis proceeded very quickly, so quickly that the cipher was broken at the same…

The algorithm, Cryptanalysis of MacGuffin & Overview

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The algorithm

DESXORedS-boxesKey schedule
4 related topics

Cryptanalysis of MacGuffin

Differential cryptanalysis
1 related topics

Overview

CryptographyBlock cipherBruce SchneierMatt BlazeFast Software Encryption workshop
9 related topics

Key facts & relationships

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Block sizes
64 bits
Derived from
DES
Designers
Bruce Schneier, Matt Blaze
First published
1994-12-14
Key sizes
128 bits
Rounds
32

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Overview

The algorithm

Cryptanalysis of MacGuffin

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Map overview Semantic statistics

MacGuffin (cipher)

Nodes18
Edges17
Triples7
Avg. degree1.89
Density0.111111
Components1

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MacGuffin (cipher)

Top relations

Block sizes · 1
MacGuffin (cipher) → 64 bits
Derived from · 1
MacGuffin (cipher) → DES
Designers · 1
MacGuffin (cipher) → Bruce Schneier, Matt Blaze
First published · 1
MacGuffin (cipher) → 1994-12-14
Key sizes · 1
MacGuffin (cipher) → 128 bits
Rounds · 1
MacGuffin (cipher) → 32
Structure · 1
MacGuffin (cipher) → Unbalanced Feistel network

Important terminology Word statistics

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Important terminology

macguffin block cipher algorithm cryptanalysis schneier blaze feistel workshop des key bits rounds data encryption rijmen preneel bruce matt unbalanced

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
MacGuffin (cipher)Block sizes64 bits1.00infobox
MacGuffin (cipher)Derived fromDES1.00infobox
MacGuffin (cipher)DesignersBruce Schneier, Matt Blaze1.00infobox
MacGuffin (cipher)First published1994-12-141.00infobox
MacGuffin (cipher)Key sizes128 bits1.00infobox
MacGuffin (cipher)Rounds321.00infobox
MacGuffin (cipher)StructureUnbalanced Feistel network1.00infobox

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    Min side: 3
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