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Cryptography > Key Management > Key Distribution > User-to-user Key Distributed Over Data Link (i.e., No Center) > By Public Key Method By Public Key MethodBy Public Key Method patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.10/18/07 - 20070242830 - Anonymous certificates with anonymous certificate show The present invention relates to a method at an issuing authority (111) to anonymously provide an individual (121) with a certificate (C), a method of providing anonymous approval of the individual at a communicating party (101) by means of using the certificate, an issuing authority for anonymously providing an individual ... 09/06/07 - 20070206799 - Efficient key hierarchy for delivery of multimedia content A Digital Rights Management (DRM) system provides a lightweight layering of encryption and decryption of keys that allows efficient use of different cryptographic techniques to effect the secure delivery of multimedia content. Asymmetric cryptography, where a public key is used to encrypt information that can only be decrypted by a ... 06/14/07 - 20070133808 - Method for allocating session key across gatekeeper zones in a direct-routing mode A method for allocating session key across gatekeepers in a direct-routing mode, including the following steps: a caller's GK and a callee's GK allocate a session key for a caller and a callee between through a Diffie-Hellman (DH) negotiation. The method of the present invention can allocate the session key ... 12/28/06 - 20060291663 - Link key injection mechanism for personal area networks According to one embodiment, a method is disclosed. The method includes generating a link key at a secure component within a first personal area network device and injecting the link key into a protocol stack component database within the first device. The link key may further be transmitted to a ... 12/14/06 - 20060280309 - Systems and methods for providing secure server key operations A key management interface that allows for different key protection schemes to be plugged into a digital rights management system is disclosed. The interface exposes the functionality of signing data, decrypting data encrypted using a public key, and re-encrypting data encrypted using the public key exported by the interface to ... 12/14/06 - 20060280308 - Method and apparatus for establishing a key agreement protocol A system and method for generating a secret key to facilitate secure communications between users. A first and second and a function between the two monoids are selected, the function being a monoid homomorphism. A group and a group action of the group on the first monoid is selected. Each ... 08/31/06 - 20060193475 - Method for signing a dataset in a public key system and data processing system for carrying out said method A method for signing a dataset in a public key system is provided. An unsigned dataset is produced. The data set receives a first signature by producing a first signature using a first secret or private key from a pair of keys associated with an authorized person, the pair of ... 05/18/06 - 20060104450 - Method and system for providing for security in communication A method (and system) of securely communicating, includes using one of a preliminary secure transmission and exchange or acquisition of secret information that provides parties with a random sequence known only to first and second parties in communication with one another, and linking one of the first and second parties ... 01/19/06 - 20060013403 - Factorization-based encryption method c=fL(m). ... ### FreshPatents.com Support |