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- XTEA abstract "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were David Wheeler and Roger Needham of the Cambridge Computer Laboratory, and the algorithm was presented in an unpublished technical report in 1997 (Needham and Wheeler, 1997).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.Like TEA, XTEA is a 64-bit block Feistel network with a 128-bit key and a suggested 64 rounds. Several differences from TEA are apparent, including a somewhat more complex key-schedule and a rearrangement of the shifts, XORs, and additions.Presented along with XTEA was a variable-width block cipher termed Block TEA, which uses the XTEA round function, but Block TEA applies it cyclically across an entire message for several iterations. Because it operates on the entire message, Block TEA has the property that it does not need a mode of operation. An attack on the full Block TEA was described in (Saarinen, 1998), which also details a weakness in Block TEA's successor, XXTEA.In 2004, Ko et al. presented a related-key differential attack on 27 out of 64 rounds of XTEA, requiring 220.5 chosen plaintexts and a time complexity of 2115.15 (Ko et al., 2004).In 2009, Lu presented a related-key rectangle attack on 36 rounds of XTEA, breaking more rounds than any previously published cryptanalytic results for XTEA.".
- XTEA thumbnail XTEA_InfoBox_Diagram.svg?width=300.
- XTEA wikiPageExternalLink tea.htm.
- XTEA wikiPageExternalLink 496737.
- XTEA wikiPageExternalLink XTEA.java.
- XTEA wikiPageExternalLink Image:XTEADataFlow.jpg.
- XTEA wikiPageExternalLink Vikram_Andem.pdf.
- XTEA wikiPageExternalLink IJIS8.pdf.
- XTEA wikiPageExternalLink project,xtea.
- XTEA wikiPageExternalLink XTEA_Strong_Encryption_Implementation.
- XTEA wikiPageExternalLink teavect.htm.
- XTEA wikiPageExternalLink xtea.pdf.
- XTEA wikiPageExternalLink article-1505.pdf.
- XTEA wikiPageExternalLink Goodies-xtea_encryption.htm.
- XTEA wikiPageExternalLink xted.
- XTEA wikiPageExternalLink sonstiges_generator_xtea.php.
- XTEA wikiPageExternalLink source-code.
- XTEA wikiPageID "530334".
- XTEA wikiPageRevisionID "558387953".
- XTEA blockSize "64".
- XTEA caption "Two Feistel rounds of XTEA".
- XTEA cryptanalysis "A related-key differential attack can break 27 out of 64 rounds of XTEA, requiring 220.5 chosen plaintexts and a time complexity of 2115.15 .".
- XTEA derivedFrom Tiny_Encryption_Algorithm.
- XTEA derivedTo XXTEA.
- XTEA designers David_Wheeler_(computer_scientist).
- XTEA designers Roger_Needham.
- XTEA hasPhotoCollection XTEA.
- XTEA keySize "128".
- XTEA name "XTEA".
- XTEA publishDate "1997".
- XTEA rounds "variable; recommended 64 Feistel rounds".
- XTEA structure Feistel_cipher.
- XTEA subject Category:Articles_with_example_C_code.
- XTEA subject Category:Feistel_ciphers.
- XTEA subject Category:Free_ciphers.
- XTEA type Abstraction100002137.
- XTEA type Cipher106254239.
- XTEA type Communication100033020.
- XTEA type FeistelCiphers.
- XTEA type FreeCiphers.
- XTEA type Message106253690.
- XTEA comment "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.Like TEA, XTEA is a 64-bit block Feistel network with a 128-bit key and a suggested 64 rounds.".
- XTEA label "Extended Tiny Encryption Algorithm".
- XTEA label "Extended Tiny Encryption Algorithm".
- XTEA label "XTEA".
- XTEA label "XTEA".
- XTEA label "XTEA".
- XTEA label "XTEA".
- XTEA sameAs Extended_Tiny_Encryption_Algorithm.
- XTEA sameAs Extended_Tiny_Encryption_Algorithm.
- XTEA sameAs XTEA.
- XTEA sameAs XTEA.
- XTEA sameAs m.02m2xg.
- XTEA sameAs Q1384945.
- XTEA sameAs Q1384945.
- XTEA sameAs XTEA.
- XTEA wasDerivedFrom XTEA?oldid=558387953.
- XTEA depiction XTEA_InfoBox_Diagram.svg.
- XTEA isPrimaryTopicOf XTEA.