摘要:
Techniques are disclosed for use in securing communications in environments comprising hybrid communication systems. For example, a method comprises, in a hybrid communication system wherein at least one computing device is configured to selectively operate in a first communication mode or a second communication mode, preventing the at least one computing device from completing an attachment process in the first communication mode when it is determined that authentication data being used to authenticate the at least one computing device in the first communication mode was generated for an authentication process in the second communication mode.
摘要:
Techniques are disclosed for managing one or more public keys used for verification of one or more messages transferred over a communication network associated with a public warning system. In one example, a method comprises the following steps. A computing device of a communication network obtains key material for at least one source of a message generated for a public warning system. The computing device also obtains an identity of the source. A public key is computed by the computing device from the key material and the identity of the source. The public key is thus useable by the computing device to verify a message received from the source that is digitally signed using a corresponding private key of the source. In one example, the computing device comprises user equipment.
摘要:
For handover between wireless telecommunications networks of different technology types, an air interface is set up between a first node 4 included in a network of a first technology type and a second node 10 included in a network of a second different technology type. Signaling messaging, in accordance with the second technology type, is related to handover of a mobile terminal from the network of the first technology type to the network of the second technology type. The signaling messaging is encapsulated in a container for transmission over the signaling interface. An identifier is associated with the container to indicate that it encapsulates the signaling messaging. When the identifier is detected at the first node, the container is sent over the interface to the second node. In one method in accordance with the invention, the first technology type is WiMAX and the identifier is a special service flow identifier. This may be detected at an Access Services Network Gateway (ASN GW), for example. A method in accordance with the invention thus permits the use of logical radio channels for encapsulating inter-technology signaling.
摘要:
Techniques are disclosed for managing one or more public keys used for verification of one or more messages transferred over a communication network associated with a public warning system. In one example, a method comprises the following steps. A computing device of a communication network obtains key material for at least one source of a message generated for a public warning system. The computing device also obtains an identity of the source. A public key is computed by the computing device from the key material and the identity of the source. The public key is thus useable by the computing device to verify a message received from the source that is digitally signed using a corresponding private key of the source. In one example, the computing device comprises user equipment.
摘要:
A tracker node verifies content possession by a peer node in a peer-to-peer content distribution system. Upon receiving an announcement that a peer node claims to possess a content item, the tracker node in one embodiment obtains the content item, selects a random portion of the content item; formulates a challenge based on the random portion of the content item and determines an expected challenge response. The challenge may comprise, for example, a request for a hash of the random portion (or alternatively, a hash of the random portion and a random seed value). The tracker node issues the challenge to the announcing node and verifies the announcing node's possession of the content item if the challenge response from the announcing node matches the expected challenge response.
摘要:
A method for managing a conference between two or more parties comprises an identity based authenticated key exchange between a conference management element and each of the two or more parties seeking to participate in the conference. Messages exchanged between the conference management element and the two or more parties are encrypted based on respective identities of recipients of the messages. The method comprises the conference management element receiving from each party a random group key component. The random group key component is computed by each party based on a random number used by the party during the key authentication operation and random key components computed by a subset of others of the two or more parties seeking to participate in the conference. The conference management element sends to each party the random group key components computed by the parties such that each party can compute the same group key.
摘要:
For handover between wireless telecommunications networks of different technology types, an air interface is set up between a first node 4 included in a network of a first technology type and a second node 10 included in a network of a second different technology type. Signaling messaging, in accordance with the second technology type, is related to handover of a mobile terminal from the network of the first technology type to the network of the second technology type. The signaling messaging is encapsulated in a container for transmission over the signaling interface. An identifier is associated with the container to indicate that it encapsulates the signaling messaging. When the identifier is detected at the first node, the container is sent over the interface to the second node. In one method in accordance with the invention, the first technology type is WiMAX and the identifier is a special service flow identifier. This may be detected at an Access Services Network Gateway (ASN GW), for example. A method in accordance with the invention thus permits the use of logical radio channels for encapsulating inter-technology signaling.
摘要:
A single instance of a session key generation protocol is executed in a manner that generates a plurality of security associations between user equipment and a first network element of a communication system. In one aspect, a first one of the security associations is utilized to secure data sent between the user equipment and the first network element in an ongoing communication. In conjunction with a handoff of the ongoing communication from the first network element to a second network element of the communication system, another one of the security associations is selected, and the other selected security association is utilized to secure data sent between the user equipment and the second network element in the ongoing communication. The security associations may comprise respective sets of session keys derived from a single pairwise master key.
摘要:
In conjunction with establishment of a session between an access network and user equipment of a communication system, session-specific information is transmitted from the access network to the user equipment. The session-specific information transmitted from the access network to the user equipment comprises information to be utilized in an authentication protocol carried out between the user equipment and an authentication server of the system. For example, the session-specific information transmitted from the access network to the user equipment may comprise an identifier of a gateway coupled between the access network and the authentication server.
摘要:
The present invention provides a method of route optimization involving a first mobile device associated with a first home gateway. One embodiment of the method is implemented in a first mobility forwarding entity and includes registering the first mobile device at the first mobility forwarding entity. The first mobile device is registered using a session key included in a registration message transmitted by the first mobile device. The embodiment also includes establishing a secure route between the first mobility forwarding entity and a terminating node using the session key. The secure route bypasses the first home gateway.