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XTEA

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were David Wheeler and Roger Needham of the Cambridge Computer Laboratory, and the algorithm was presented in an unpublished technical report in 1997 (Needham and Wheeler, 1997).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.

Cryptanalysis, Overview & Implementations

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Cryptanalysis

Related-keyDifferential attackChosen plaintextsTime complexity
4 related topics

Overview

CryptographyBlock cipherTEACipherDavid Wheeler
13 related topics

Implementations

Public domain64-bit
2 related topics

Block TEA

Mode of operationXXTEA
2 related topics

Key facts & relationships

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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)

Topics to explore

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Overview

Implementations

Cryptanalysis

Block TEA

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Map overview Semantic statistics

XTEA

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

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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 Word statistics

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Important terminology

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

Entity relationships Subject–Predicate–Object triples

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

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