FEAL

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FEAL topic overview

The analysis highlights Standards and Overview as prominent areas in the source structure around FEAL.

Related topics: 16
Source areas: 1
Connected nodes: 17
Extracted relationships: 46
Concept neighborhoods: 15
Bridge connections: 17

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 16 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Block sizes: 64 bits
Designers: Akihiro Shimizu and Shoji Miyaguchi (NTT)
First published: FEAL-4 in 1987; FEAL-N/NX in 1990
Key sizes: 64 bits (FEAL), 128 bits (FEAL-NX)
Rounds: Originally 4, then 8, then variable (recommended 32)
Structure: Feistel network

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Cryptography
Block cipher
Data Encryption Standard
Feistel ciphers Feistel cipher
Akihiro Shimizu Akihiro Shimizu?action=edit&redlink=1
Shoji Miyaguchi Shoji Miyaguchi?action=edit&redlink=1
NTT Nippon Telegraph and Telephone
Cryptanalysis
Differential cryptanalysis
Linear cryptanalysis
64-bit block Block size (cryptography)
64-bit key Key (cryptography)
Chosen plaintexts Chosen plaintext
Eli Biham
Adi Shamir
Known plaintext

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How FEAL connects Entity context

The extracted context around FEAL shows recurring relationship patterns in the source. For example, FEAL → Adi Shamir, Advances, Anne Tardy-Corfdir, Atsuhiro Yamagishi, Attack, Boer, Call, Chosen Plaintexts, Cryptanalysis, CRYPTO, Cryptology, Differential Cryptanalysis, Eli Biham, EUROCRYPT, Fast, FEAL Cipher, FEAL-4, FEAL-6, FEAL-8 Cryptosystem, Gilbert Another extracted example is FEAL → Archived, FEALUS, Peter Gutmann, The FEAL, Wayback Machine. Use these groups to spot repeated connection types before inspecting the individual relationships.

Top relations

related to References · 35

FEAL → Adi Shamir, Advances, Anne Tardy-Corfdir, Atsuhiro Yamagishi, Attack, Boer, Call, Chosen Plaintexts, Cryptanalysis, CRYPTO, Cryptology, Differential Cryptanalysis, Eli Biham, EUROCRYPT, Fast, FEAL Cipher, FEAL-4, FEAL-6, FEAL-8 Cryptosystem, Gilbert

related to External links · 5

FEAL → Archived, FEALUS, Peter Gutmann, The FEAL, Wayback Machine

Block sizes · 1

FEAL → 64 bits

Designers · 1

FEAL → Akihiro Shimizu and Shoji Miyaguchi (NTT)

First published · 1

FEAL → FEAL-4 in 1987; FEAL-N/NX in 1990

Key sizes · 1

FEAL → 64 bits (FEAL), 128 bits (FEAL-NX)

Rounds · 1

FEAL → Originally 4, then 8, then variable (recommended 32)

Structure · 1

FEAL → Feistel network

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

cryptanalysis differential attack miyaguchi cipher plaintexts feal-4 1990 known linear rounds feal-8 1991 first den chosen shimizu biham feistel 1988

FEAL relationships Subject–Predicate–Object triples

TTTA extracted 46 structured relationships around FEAL. Examples in this analysis include FEAL → Block sizes → 64 bits and FEAL → Designers → Akihiro Shimizu and Shoji Miyaguchi (NTT). The table shows each extracted connection, where it came from and its confidence.

Subject	Predicate	Object	Confidence	Src
FEAL	Block sizes	64 bits	1.00	infobox
FEAL	Designers	Akihiro Shimizu and Shoji Miyaguchi (NTT)	1.00	infobox
FEAL	First published	FEAL-4 in 1987; FEAL-N/NX in 1990	1.00	infobox
FEAL	Key sizes	64 bits (FEAL), 128 bits (FEAL-NX)	1.00	infobox
FEAL	Rounds	Originally 4, then 8, then variable (recommended 32)	1.00	infobox
FEAL	Structure	Feistel network	1.00	infobox
FEAL	related to External links	The FEAL	0.60	section
FEAL	related to External links	Peter Gutmann	0.60	section
FEAL	related to External links	FEALUS	0.60	section
FEAL	related to External links	Archived	0.60	section
FEAL	related to External links	Wayback Machine	0.60	section
FEAL	related to References	Eli Biham	0.60	section

Related concept clusters Concept neighborhoods

The concept neighborhoods around FEAL bring nearby vocabulary together. In this analysis, examples include Known, Miyaguchi and Feistel. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

block cipher
- Feistel
- Feal
- 64-bit
- Faster
- Miyaguchi
- Designers
- Feal-nx
- Key
- Matsui
- Published
- Yamagishi
- Differential
cryptanalysis
- Differential
- Plaintexts
- Linear
- Gilbert
- Feal-4
- Known
- Feal-nx
- Matsui
- Murphy
- Published
- Yamagishi
- Attack
differential cryptanalysis
- Biham
- Differential
- Plaintexts
- Shamir
- Linear
- Attack
- Gilbert
- Feal-4
- Feal-n
- Known
- Feal-nx
- Matsui
linear cryptanalysis
- Plaintexts
- Differential
- Linear
- Matsui
- Yamagishi
- Gilbert
- Feal-4
- Known
- Feal-nx
- Murphy
- Published
- Attack
shoji miyaguchi
- Shoji
- Designers
- Shimizu
- Rounds
- Feal
- Feal-nx
- Key
- Published
- Feal-8
- Yamagishi
- Crypto
- Attack
chosen plaintexts
- Linear
- Known
- Murphy
- Plaintexts
- Matsui
- Published
- Yamagishi
- Cryptanalysis
- Designers
- Feal-n
- Feal-nx
- Key
FEAL
- Known
- Miyaguchi
- Feistel
- Matsui
- Yamagishi
- Crypto
- Shoji
- Linear
- Plaintexts
- Attack
- 64-bit
- Designers
feal
- Known
- Miyaguchi
- Feistel
- Matsui
- Yamagishi
- Crypto
- Shoji
- Linear
- Plaintexts
- Attack
- 64-bit
- Designers

Connections between topic areas Semantic bridges

Bridges highlight paths between different parts of the FEAL map and can reveal research angles that are easy to miss in a flat list.

Min side: 3

Map overview Semantic statistics

FEAL

Nodes18

Edges17

Triples46

Avg. degree1.89

Density0.111111

Components1

Source & methodology

TTTA analyzes the structure around FEAL to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Standards & Overview, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — FEAL · EN edition · Analysis: TopicsToTalkAbout