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- Q2326939 subject Q8316362.
- Q2326939 abstract "Akelarre is a block cipher proposed in 1996, combining the basic design of IDEA with ideas from RC5. It was shown to be susceptible to a ciphertext-only attack in 1997. Akelarre is a 128-bit block cipher with a variable key-length which must be some multiple of 64 bits. The number of rounds is variable, but four are suggested. The round function of Akelarre is similar to IDEA in structure. After the successful cryptanalysis of Akelarre, its designers responded with an updated variant called Ake98. This cipher differs from the original Akelarre in the new AR-box (Addition-Rotation box), the swapping of words at the end of a round, and the addition of subkeys at the beginning of each round. In 2004, Jorge Nakahara, Jr. and Daniel Santana de Freitas found large classes of weak keys for Ake98. These weak keys allow a cryptanalysis faster than exhaustive search using only 71 known plaintexts, for up to 11.5 rounds of Ake98.".
- Q2326939 wikiPageExternalLink 283649.html.
- Q2326939 wikiPageExternalLink knudsen97two.html.
- Q2326939 wikiPageExternalLink paper-akelarre.pdf.
- Q2326939 wikiPageExternalLink ake98.pdf.gz.
- Q2326939 wikiPageWikiLink Q1041737.
- Q2326939 wikiPageWikiLink Q1142292.
- Q2326939 wikiPageWikiLink Q1349650.
- Q2326939 wikiPageWikiLink Q1420038.
- Q2326939 wikiPageWikiLink Q218170.
- Q2326939 wikiPageWikiLink Q2574238.
- Q2326939 wikiPageWikiLink Q2734040.
- Q2326939 wikiPageWikiLink Q283647.
- Q2326939 wikiPageWikiLink Q2995268.
- Q2326939 wikiPageWikiLink Q368328.
- Q2326939 wikiPageWikiLink Q42332.
- Q2326939 wikiPageWikiLink Q433933.
- Q2326939 wikiPageWikiLink Q466478.
- Q2326939 wikiPageWikiLink Q513687.
- Q2326939 wikiPageWikiLink Q543151.
- Q2326939 wikiPageWikiLink Q8316362.
- Q2326939 wikiPageWikiLink Q848204.
- Q2326939 comment "Akelarre is a block cipher proposed in 1996, combining the basic design of IDEA with ideas from RC5. It was shown to be susceptible to a ciphertext-only attack in 1997. Akelarre is a 128-bit block cipher with a variable key-length which must be some multiple of 64 bits. The number of rounds is variable, but four are suggested. The round function of Akelarre is similar to IDEA in structure.".
- Q2326939 label "Akelarre (cipher)".