Digital certificates
First Claim
Patent Images
1. A method for producing a certificate, the certificate comprising data, the method comprising:
- generating a modulus N by a computer programmed to generate the modulus N by a scattering method L, a function R and a seed s, whereN is generated, in part, by scattering bits of R(s) throughout N using the scattering method L; and
all bits of N other than R(s) are denoted by t;
generating a key pair (E,D) by the computer, which is programmed to generate the key pair (E,D) such that E=F(s,t), D being a private key, E being a public key, F being a publicly known function; and
producing the certificate, including the public key E in compressed form by the computer, which is programmed to include the s and the t in the certificate instead of the public key E,wherein the s and the t together are shorter than the E and,wherein the public key E is generable from the s and the t.
5 Assignments
0 Petitions
Accused Products
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.
-
Citations
10 Claims
-
1. A method for producing a certificate, the certificate comprising data, the method comprising:
-
generating a modulus N by a computer programmed to generate the modulus N by a scattering method L, a function R and a seed s, where N is generated, in part, by scattering bits of R(s) throughout N using the scattering method L; and all bits of N other than R(s) are denoted by t; generating a key pair (E,D) by the computer, which is programmed to generate the key pair (E,D) such that E=F(s,t), D being a private key, E being a public key, F being a publicly known function; and producing the certificate, including the public key E in compressed form by the computer, which is programmed to include the s and the t in the certificate instead of the public key E, wherein the s and the t together are shorter than the E and, wherein the public key E is generable from the s and the t. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A compressed form public key delivery digital certificate for being parsed in hardware, the certificate being produced by a method comprising:
-
generating a modulus N by a computer programmed to generate the modulus N by a scattering method L, a function R and a seed s, where N is generated, in part, by scattering bits of R(s) throughout N using the scattering method L; and all bits of N other than R(s) are denoted by t; generating a key pair (E,D) by the computer, which is programmed to generate the key pair (E,D) such that E=F(s,t), D being a private key, E being a public key, F being a publicly known function; and producing the certificate, including the public key E in compressed form by the computer, which is programmed to include the s and the t in the certificate instead of the public key E, wherein the s and the t together are shorter than the E and, wherein the public key E is generable from the s and the t.
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeCisco Technology, Inc. (Cisco Systems, Inc.)
-
Original AssigneeNDS Limited (Cisco Systems, Inc.)
-
InventorsHalpern, Victor, Kipnis, Aviad, Belenky, Yaacov, Shen-Orr, Chaim D.
-
Primary Examiner(s)Chai; Longbit
-
Application NumberUS12/005,523Publication NumberTime in Patent Office1,167 DaysField of Search713/175US Class Current713/175CPC Class CodesH04L 9/302 involving the integer facto...H04L 9/3093 involving Lattices or polyn...H04L 9/3263 involving certificates, e.g...
