Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Reexamination Certificate
2009-09-03
2011-12-27
Lemma, Samson (Department: 2432)
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
C380S042000
Reexamination Certificate
active
08085933
ABSTRACT:
Encryption is provided with additional diffusion components to construct a block cipher with a large and variable block size. The cipher incorporates an encryption system or algorithm such that the cipher is at least as secure as the encryption system or algorithm. Additional components of the cipher provide improved diffusion. This combination ensures that the cipher is at least as strong as the encryption algorithm, and at the same time it provides additional security properties due to its improved diffusion.
REFERENCES:
patent: 6182216 (2001-01-01), Luyster
patent: 6246768 (2001-06-01), Kim
patent: 6259789 (2001-07-01), Paone
patent: 6578150 (2003-06-01), Luyster
patent: 6751319 (2004-06-01), Luyster
patent: 7177424 (2007-02-01), Furuya et al.
patent: 7305085 (2007-12-01), Ohkuma et al.
patent: 7499542 (2009-03-01), Vaudenay et al.
patent: 7512241 (2009-03-01), Vaudenay et al.
patent: 7587614 (2009-09-01), Langhammer
patent: 2002/0016773 (2002-02-01), Ohkuma et al.
patent: 2004/0131182 (2004-07-01), Rogaway
patent: 2004/0247117 (2004-12-01), Vaudenay et al.
patent: 2005/0180565 (2005-08-01), Kurdziel et al.
Anderson, Ross, et al., “Two Practical and Provably Secure Block Ciphers: BEAR and LION,”Proceedings of the Third International Workshop on Fast Software Encryption, Lecture Notes in Computer Science, 1996, (1039)113-120.
Bellaire, Mihir, et al., “On the Construction of Variable-Input-Length Ciphers,”Lecture Notes in Computer Science, Proceedings of the 6th International Workshop on Fast Software Encryption, 1999, (1636), 231-244.
Crowley, Paul, “Mercy: A Fast Large Block Cipher for Disk Sector Encryption,”Lecture Notes in Computer Science, Proceedings of the 7th International Workshop on Fast Software Encryption, 2000, (1978),49-63.
Ferguson, Niels, et al., “Helix, Fast Encryption and Authentication in a Single Cryptographic Primitive,”Lecture Notes in Computer Science, Fast Software Encryption: 10th International Workshop, Revised Papers, FSE 2003, Feb. 24-26, 2003, 1-18.
Fluhrer, Scott R., “Cryptanalysis of the Mercy Block Cipher,”Lecture Notes in Computer Science, Revised Papers from the 8th International Workshop on Fast Software Encryption, 2001, 2355, 28-36.
Liskov, Moses, et al., “Tweakable Block Ciphers,”Lecture Notes in Computer Science, Proceedings of the 22nd Annual International Cryptology Conference on Advances in Cryptology, 2002, 2442, 31-46.
Lucks, Stefan, et al., “BEAST: A Fast Block Cipher for Arbitrary Blocksizes,”Proceedings of the IFIP TC6/TC11 International Conference on Communications and Multimedia Security II, 1997, 144-153.
Morin, Pat, “A Critique of BEAR and LION,” http://citeseer.ist.psu.edu/124166.html; Undated,1-6.
Lemma Samson
Microsoft Corporation
Woodcock & Washburn LLP
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