Digital certificates

Details Digital certificates Digital certificates

2003-12-29

2008-03-04

Sheikh, Ayaz (Department: 2131)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C380S028000, C380S029000, C380S030000, C713S155000, C713S156000, C713S157000, C713S158000, C726S003000, C726S004000, C726S005000, C726S006000

Reexamination Certificate

active

07340606

ABSTRACT:
A method for producing a certificate, the certificate including data, the method including choosing a seed s, the seed s including a result of applying a function H to the data, generating a key pair (E,D), such that E=F(s,t), F being a publicly known function, and including s and t in the certificate. Related methods, and certificates produced by the various methods, are also described.

REFERENCES:
patent: 5373561 (1994-12-01), Haber et al.
patent: 5717757 (1998-02-01), Micali
patent: 5999711 (1999-12-01), Misra et al.
patent: 6084966 (2000-07-01), Maebara et al.
patent: 6233577 (2001-05-01), Ramasubramani et al.
patent: 6298153 (2001-10-01), Oishi
patent: 6683953 (2004-01-01), Kasahara et al.
patent: 2002/0046339 (2002-04-01), Bellare et al.
patent: 2002/0152385 (2002-10-01), Vanstone et al.
patent: 2003/0005317 (2003-01-01), Audebert et al.
patent: 2004/0015692 (2004-01-01), Green et al.
patent: WO 01/0625 (2001-01-01), None
Jeffrey Hoffstein (“NTRUSIGN: Digital Signatures Using NTRU Lattice”, Apr. 2002).
Donald E. Eastlake et al., “US Secure Hash Algorithm 1 (SHA1)” (Network Working Group, Request for Comments 3174) (The Internet Society, Sep. 2001), available on the World Wide Web at www.ietf.org/rfc/rfc3174.txt?number=3174.
Alfred J. Menezes et al., “The L3-lattice basis reduction algorithm”,Handbook of Applied Cryptography, §3.10.1 (CRC Press 1996).
Alfred J. Menezes et al., “Probabilistic primality tests”,Handbook of Applied Cryptography, §4.2 (CRC Press 1996).
R. L. Rivest et al., “A Method for Obtaining Digital Signatures and Public-Key Cryptosystems”Communications of the ACM, vol. 21, Issue 2, pp. 120-126 (Feb. 1978).
“Announcing the Advanced Encryption Standard (AES)” (FIPS PUB 197) (National Institute of Standards and Technology, Nov. 26, 2001), available on the World Wide Web at http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf.
“Information technology—Open systems interconnection—The Directory: Public-key and attribute certificate frameworks” (ITU-T Recommendation X.509) (ITU Telecommunication Standardization Sector, Mar. 2000).
“Secure Hash Standard”(FIPS PUB 180-1) (National Institute of Standards and Technology, Apr. 17, 1995).
Jeffrey Hoffstein et al.; “NTRUsign: Digital Signatures Using the NTRU Lattice” (Preliminary Draft 2, Apr. 2, 2002); available on the World Wide Web at: http://www.ntru.com.
A. K. Lenstra et al.; “Factoring Polynomials with Rational Coefficients” Mathematische Annaleu 261, p. 515-34 (1982); available on the World Wide Web at: http://www.springerlink.com/index/v4h8324p08422m61.pdf.

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