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XTEA: Cryptanalysis, Overview & Implementations

In cryptography, XTEA (eXtended TEA) is a block cipher designed to correct weaknesses in TEA. The cipher's designers were David Wheeler and Roger Needham of the Cambridge Computer Laboratory, and the algorithm was presented in an unpublished technical report in 1997 (Needham and Wheeler, 1997). It is not subject to any patents.

Language: English [EN]
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XTEA topic overview

The analysis highlights Cryptanalysis, Overview and Implementations as prominent areas in the source structure around XTEA.

Related topics
21
Source areas
4
Connected nodes
25
Extracted relationships
81
Concept neighborhoods
18
Bridge connections
25

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 · 13 topics
Cryptanalysis · 4 topics
Block TEA · 2 topics
Implementations · 2 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
Derived from
TEA
Designers
Roger Needham, David Wheeler
First published
1997
Key sizes
128 bits
Rounds
variable; recommended 64 Feistel rounds (32 cycles)

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

Implementations

Cryptanalysis

Block TEA

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 XTEA connects Entity context

The extracted context around XTEA shows recurring relationship patterns in the source. For example, XTEA → Alabama, Andem, Bart, Computer Science, Cryptology, CT-RSA, Dukjae, Fast Software Encryption, Gautham, Hwang, Impossible Differential Cryptanalysis, In Kiayias, ISBN, Jongin, Kyungdeok, Lecture Notes, Lee, Lim, Masters, Meet-in-the-Middle Attacks Another extracted example is XTEA → DataFlow DiagramA, Linden Scripting Language, LSL, Second Life, TEA, Tiny Encryption AlgorithmPHP, XTEAA Cryptanalysis, XTEAJavaScript, XTEAPascal/Delphi, XTEAPostgreSQL. Use these groups to spot repeated connection types before inspecting the individual relationships.

XTEA

Top relations

related to Further reading · 40
XTEA → Alabama, Andem, Bart, Computer Science, Cryptology, CT-RSA, Dukjae, Fast Software Encryption, Gautham, Hwang, Impossible Differential Cryptanalysis, In Kiayias, ISBN, Jongin, Kyungdeok, Lecture Notes, Lee, Lim, Masters, Meet-in-the-Middle Attacks
related to External links · 10
XTEA → DataFlow DiagramA, Linden Scripting Language, LSL, Second Life, TEA, Tiny Encryption AlgorithmPHP, XTEAA Cryptanalysis, XTEAJavaScript, XTEAPascal/Delphi, XTEAPostgreSQL
related to Block TEA · 7
XTEA → An, Because, Block TEA, Block TEA's, Presented, Saarinen, XXTEA
see also · 7
XTEA → Ascon, Block TEA's, ISO-standardized, NIST-select, PRESENT, TEA, XXTEA
related to Cryptanalysis · 4
XTEA → In, Ko, Lu, The
related to Implementations · 4
XTEA → David Wheeler, Roger Needham, The, This
Block sizes · 1
XTEA → 64 bits
Derived from · 1
XTEA → TEA
Designers · 1
XTEA → Roger Needham, David Wheeler
First published · 1
XTEA → 1997

Important terminology

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

Important terminology

tea block cipher rounds key 64 10 presented 64-bit cryptanalysis attack david wheeler roger needham related-key computer algorithm two 32

XTEA relationships Subject–Predicate–Object triples

TTTA extracted 81 structured relationships around XTEA. Examples in this analysis include XTEA → Block sizes → 64 bits and XTEA → Derived from → TEA. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
XTEABlock sizes64 bits1.00infobox
XTEADerived fromTEA1.00infobox
XTEADesignersRoger Needham, David Wheeler1.00infobox
XTEAFirst published19971.00infobox
XTEAKey sizes128 bits1.00infobox
XTEARoundsvariable; recommended 64 Feistel rounds (32 cycles)1.00infobox
XTEAStructureFeistel cipher1.00infobox
XTEASuccessorsCorrected Block TEA1.00infobox
XTEAis a64-bit block Feistel cipher with a 128-bit key and a suggested 64 rounds0.90text
XTEArelated to Block TEAPresented0.60section
XTEArelated to Block TEABlock TEA0.60section
XTEArelated to Block TEABecause0.60section

Related concept clusters Concept neighborhoods

The concept neighborhoods around XTEA bring nearby vocabulary together. In this analysis, examples include Cipher, Rounds and Tea. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • XTEA
    • Cipher
    • Rounds
    • Tea
    • Block
    • 64-bit
    • Related-key
    • Attack
    • Cryptanalysis
    • Presented
    • Designed
    • Feistel
    • Implementations
  • xtea
    • Cipher
    • Rounds
    • Tea
    • Block
    • 64-bit
    • Related-key
    • Attack
    • Cryptanalysis
    • Presented
    • Designed
    • Feistel
    • Implementations
  • block cipher
    • Tea
    • 64-bit
    • Cipher
    • Xtea
    • Designed
    • Feistel
    • Like
    • Tea's
    • Key
    • Also
    • Xxtea
    • Rounds
  • tea
    • Block
    • Xtea
    • Cipher
    • Cryptanalysis
    • Rounds
    • Also
    • Feistel
    • Implementations
    • Several
    • 64-bit
    • Round
    • Tea's
  • cipher
    • 64-bit
    • Xtea
    • Designed
    • Feistel
    • Like
    • Tea
    • Key
    • Rounds
    • Also
    • David
    • Designers
    • Implementations
  • 64-bit block
    • Feistel
    • Like
    • Tea
    • Cipher
    • Key
    • Xtea
    • 64-bit
    • Block
    • Tea's
    • Rounds
    • Also
    • David
  • feistel cipher
    • 64-bit
    • Key
    • Xtea
    • Also
    • Designed
    • Feistel
    • Implementations
    • Like
    • Needham
    • Roger
    • Rounds
    • Tea
  • block tea
    • Block
    • Tea
    • Cipher
    • Xtea
    • 64-bit
    • Tea's
    • Cryptanalysis
    • Rounds
    • Also
    • Designed
    • Feistel
    • Like

Connections between topic areas Semantic bridges

For XTEA, one of the stronger structural bridges in this analysis connects XTEA with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
XTEAOverview · splits 12 ⟂ 14
XTEACryptanalysis · splits 21 ⟂ 5
XTEAImplementations · splits 23 ⟂ 3
XTEABlock TEA · splits 23 ⟂ 3

Map overview Semantic statistics

XTEA

Nodes26
Edges25
Triples81
Avg. degree1.92
Density0.076923
Components1

Source & methodology

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

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

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