Patent application number | Description | Published |
20090063852 | AUTHENTICATION FOR AD HOC NETWORK SETUP | 03-05-2009 |
20090080389 | METHOD, SYSTEM AND A DATA FRAME FOR COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM - A means for determining a channel for communication in a wireless communication system is provided. A method includes receiving one or more sub-frames of a beacon signal on a beaconing channel until a legitimacy condition of the beacon signal is met. The beacon signal is transmitted by a beaconing device. The method further includes determining a suitability of the channel for communication in the wireless communication system based on the legitimacy condition. | 03-26-2009 |
20090198619 | AGGREGATED HASH-CHAIN MICROPAYMENT SYSTEM - Disclosed are a system and method for aggregating micropayment hash chains. An end user (the “payer”) cryptographically signs “commitments” and transmits then to a vendor. The commitments include an “accumulated count” field which tracks the total number of micropayments made thus far in the payment transaction between the payer and the vendor. The payer can also transmit payment tokens to the vendor. These payment tokens include micropayments verified by a hash chain. When the vendor seeks reimbursement from a broker, the vendor tells the broker the total number of micropayments in the payment transaction and sends verification information to the broker. The broker checks this information against a verification system established with the payer. If the information is verified to be correct, then the broker reimburses the vendor for the services provided and charges the payer. The verification information ensures that the payer and vendor cannot cheat each other. | 08-06-2009 |
20120140928 | METHOD AND APPARATUS FOR EXTENDING A KEY-MANAGEMENT PROTOCOL - A method and apparatus for modifying the Multimedia Internet KEYing (MIKEY) protocol to support an extended key-management message (KMM), wherein the apparatus programs a computer to perform the method, which includes: determining that a KMM is directed to a target device; determining that the KMM is an extended KMM related to a key-management operation that is not supported by the standard MIKEY protocol; signaling the extended KMM in at least one field of a MIKEY message; and sending the MIKEY message to the target device. | 06-07-2012 |
20120148050 | BINDING KEYS TO SECURE MEDIA STREAMS - A key message can include a key-encryption-key (KEK) associated with a KeyDomainID and a KeyGroupID. A session description message can describe streaming media initialization parameters containing media stream information for one or more media streams. For each media stream, the media stream information can include an IP address and a data port. The session description message can further contain a linkage for binding the KEK to a corresponding one of the media streams. The linkage can include the KeyDomainID and KeyGroupID or can include an abstract representation of the KeyDomainID and KeyGroupID. During session initialization, the key-encryption-key (KEK) can be bound to the media streams using the linkage of the session description message. Each of the media streams can be secured using a traffic key conveyed to user equipment (UE) under protection of the key-encryption-key (KEK). | 06-14-2012 |
20120159159 | SYSTEM AND METHOD FOR SECURE COMMUNICATIONS IN A COMMUNICATION SYSTEM - A system and method for secure communications in a communication system, wherein the system programs a computer to perform the method, which includes: receiving at least one authentication key, without an encryption key, from a key-management server; receiving a packet, which is encrypted, from a source device; authenticating the packet, using the at least one authentication key, without cryptographically altering the packet; and forwarding the authenticated packet to a destination device of the packet. | 06-21-2012 |
20130054964 | METHODS AND APPARATUS FOR SOURCE AUTHENTICATION OF MESSAGES THAT ARE SECURED WITH A GROUP KEY - Methods, systems and apparatus are provided for source authentication. In accordance with the disclosed embodiments, a key-management server generates a key-delivery message that includes a key data transport payload secured with a group key, and a source authentication payload. Upon receiving the key-delivery message at a communication device, the communication device may verify whether the source authentication payload of the key-delivery message is valid. When the source authentication payload is determined to be valid, the communication device thereby authenticates that the key-delivery message was transmitted by the key-management server. | 02-28-2013 |
20150341341 | APPARATUS AND METHOD FOR SECURING A DEBUGGING SESSION - A device executes debugging instructions received from a debugging computer. The device receives a debugging establishment request from the debugging computer. The device transmits a unique identifier associated with the device and a secured expiration value to the debugging computer. The device receives a transport layer security (TLS) certificate from the debugging computer and establishes a secured and authenticated link with the debugging computer using the TLS certificate. The device enables a debugging mode, responsive to determining that an identifier in the TLS certificate matches the unique identifier and that a secured expiration value in the TLS certificate is valid and within a predefined validity range, and executes, in the debugging mode, debugging instructions received from the debugging computer. | 11-26-2015 |