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Search: id:A131620
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| A131620 |
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Weight distribution of a certain binary linear code of length 56 defined by AES (or Rijndael) S-box. |
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+0
2
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| 1, 0, 8, 27, 55, 240, 701, 1909, 5753, 15747, 41138, 104762, 252664, 580609, 1274691, 2665295, 5315469, 10113564, 18353698, 31781680, 52486460, 82606895, 123821091, 176518711, 238906435, 306378988, 371328696, 423932616
(list; graph; listen)
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OFFSET
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0,3
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COMMENT
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This is the code of length 56 defined by taking a slice of four bytes and three bytes of successive AES round keys as described in the Halderman et al. paper.
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LINKS
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Nadia Heninger, Table of n, a(n) for n = 0..56 [The full weight distribution]
J. Alex Halderman, Seth D. Schoen, Nadia Heninger, William Clarkson, William Paul, Joseph A. Calandrino, Ariel J. Feldman, Jacob Appelbaum and Edward W. Felten, Lest We Remember: Cold Boot Attacks on Encryption Keys, 2008.
Wikipedia, Rijndael S-box
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EXAMPLE
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0: 1
1: 0
2: 8
3: 27
4: 55
5: 240
6: 701
7: 1909
8: 5753
9: 15747
10: 41138
11: 104762
12: 252664
...
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CROSSREFS
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Cf. A131630.
Sequence in context: A031295 A063144 A122013 this_sequence A141227 A062686 A093322
Adjacent sequences: A131617 A131618 A131619 this_sequence A131621 A131622 A131623
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KEYWORD
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nonn,fini
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AUTHOR
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Nadia Heninger (nadiah(AT)cs.princeton.edu), May 28 2008
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