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US 2012/0233457 A1Published application
Issuing implicit certificates
AssigneeCerticom Corp.
InventorGregory Marc Zaverucha
Life of this patent
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AssigneeCerticom Corp.
InventorGregory Marc Zaverucha
Estimating the term…
Methods, systems, and computer programs for issuing an implicit certificate are disclosed. In some implementations, a certificate authority of an elliptic curve cryptography (ECC) system performs one or more operations for issuing the implicit certificate. A certificate request associated with a requester is received, and the certificate request includes a first element RU in a group. In response to receiving the request, a second element PU in the group is generated based on the first element RU. An implicit certificate CertU is generated based on the second element PU. Whether the public key QU of the requester corresponds to a trivial public key, such as an identity element of the group, can be determined. For example, the certificate authority can compute the public key QU of the requester based on the first element PU, the implicit certificate CertU, and a public key QCA of the certificate authority.
A method for issuing an implicit certificate at a certificate authority of an elliptic curve cryptography system, the method comprising:
A system comprising a certificate authority server, the certificate authority server comprising data processing apparatus operable to perform operations for issuing an implicit certificate, the operations comprising:
A non-transitory computer-readable medium storing instructions that are operable when executed by data processing apparatus to perform operations for issuing an implicit certificate, the operations comprising:
Dependencies are inferred from the claim text.