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Lucifer (cipher)

In cryptography, Lucifer was the name given to several of the earliest civilian block ciphers, developed by Horst Feistel and his colleagues at IBM. Lucifer was a direct precursor to the Data Encryption Standard. One version, alternatively named DTD-1, saw commercial use in the 1970s for electronic banking.

Standards, Overview & Description of the Sorkin variant

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Overview

16 related topics

Description of the Sorkin variant

3 related topics

Key facts & relationships

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Block sizes
48, 32 or 128 bits
Designers
Horst Feistel et al.
First published
1971
Key sizes
48, 64 or 128 bits
Rounds
16
Structure
Substitution–permutation network, Feistel network

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Overview

Description of the Sorkin variant

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Map overview Semantic statistics

Lucifer (cipher)

Nodes22
Edges21
Triples7
Avg. degree1.91
Density0.090909
Components1

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Lucifer (cipher)

Top relations

Block sizes · 1
Lucifer (cipher) → 48, 32 or 128 bits
Designers · 1
Lucifer (cipher) → Horst Feistel et al.
First published · 1
Lucifer (cipher) → 1971
Key sizes · 1
Lucifer (cipher) → 48, 64 or 128 bits
Rounds · 1
Lucifer (cipher) → 16
Structure · 1
Lucifer (cipher) → Substitution–permutation network, Feistel network
Successors · 1
Lucifer (cipher) → DES

Important terminology Word statistics

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Important terminology

key lucifer feistel bits block one variant left name data version horst ibm uses described operates cipher 4-bit byte encryption

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Lucifer (cipher)Block sizes48, 32 or 128 bits1.00infobox
Lucifer (cipher)DesignersHorst Feistel et al.1.00infobox
Lucifer (cipher)First published19711.00infobox
Lucifer (cipher)Key sizes48, 64 or 128 bits1.00infobox
Lucifer (cipher)Rounds161.00infobox
Lucifer (cipher)StructureSubstitution–permutation network, Feistel network1.00infobox
Lucifer (cipher)SuccessorsDES1.00infobox

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    Min side: 3
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