Patent application number | Description | Published |
20120297193 | MTC DEVICE AUTHENTICATION METHOD, MTC GATEWAY, AND RELATED DEVICE - Embodiments of the present invention provide an MTC device authentication method, an MTC gateway, and a related device, which are used to solve a problem that direct interaction between a large quantity of MTC devices and a network side brings a heavy load to a network when the MTC devices are authenticated in the prior art. The method includes: performing, by an MTC gateway, mutual authentication with a core network node; performing, by the MTC gateway, mutual authentication with an MTC device; reporting, by the MTC gateway, a result of the mutual authentication with the MTC device to the core network node; and providing, by the MTC gateway, a non access stratum link protection key K between the MTC device and the core network node according to a key K | 11-22-2012 |
20120331298 | SECURITY AUTHENTICATION METHOD, APPARATUS, AND SYSTEM - Embodiments of the present invention provide a security authentication method, apparatus, and system, where the method includes: verifying a feature identifier for identifying terminal equipment, where the terminal equipment is machine-to-machine equipment; and obtaining a key corresponding to the feature identifier, so as to perform secure communication with the terminal equipment according to the key. In the embodiments of the present invention, after terminal equipment, a mobility management entity, and a home subscriber system successfully perform authentication and key agreement, it is verified whether a feature identifier of the terminal is legal, and when the feature identifier of the terminal is a legal identifier, a key is obtained according to the feature identifier, so that the mobility management entity and the terminal equipment perform secure communication according to the key, thereby implementing secure communication between M2M equipment and a network side. | 12-27-2012 |
20130035067 | METHOD AND APPARATUS FOR AUTHENTICATING COMMUNICATION DEVICE - Embodiments of the present invention disclose a method and an apparatus for authenticating a communication device, where the method includes: receiving an attach request including a group identifier and sent by an MTC device to be authenticated, where the group identifier is a group identifier of an MTC group where the MTC device to be authenticated is located; determining whether a first group authentication vector bound to the group identifier exists locally, where the first group authentication vector is an authentication vector used for authenticating MTC devices in the MTC group; and if existing, according to the first group authentication vector, authenticating the MTC device to be authenticated, and generating a system key of the MTC device to be authenticated. The technical solutions provided in the present invention can be applied to the technical field of authenticating the MTC device. | 02-07-2013 |
20130236016 | METHOD, APPARATUS, AND SYSTEM FOR DATA PROTECTION ON INTERFACE IN COMMUNICATIONS SYSTEM - A method and an apparatus for protecting data carried on an Un interface between a eNB and a relay node are disclosed. Three types of radio bearers (RBs) are defined over the Un interface: signaling radio bearers (SRBs) for carrying control plane signaling data, signaling-data radio bearers (s-DRBs) for carrying control plane signaling date; and data-data radio bearers (d-DRBs) for carrying user plane data. An integrity protection algorithm and an encryption algorithm are negotiated for control plane signaling data on an SRB, control plane signaling data carried on an s-DRB, and user plane data carried on a d-DRB. With the respective integrity protection algorithm and encryption algorithm, the data over the Un interface can be protected respectively. Therefore, the security protection on the Un interface is more comprehensive, and the security protection requirements of data borne over different RBs can be met. | 09-12-2013 |
20130310006 | METHOD AND DEVICE FOR KEY GENERATION - A method and a device for key generation are disclosed in embodiments of the present invention. The method for key generation is applied to a UMTS-LTE resource convergence scenario that has a base station as an anchor point, and includes: deriving, according to a root key and a count value of an LTE system, or according to a random number and an LTE system root key, a UMTS integrity key and cipher key, and sending the UMTS integrity key and cipher key to a UMTS control node. The embodiments of the present invention enable the derivation of the UMTS integrity key and cipher key in a UMTS-LTE resource convergence scenario that has a base station as an anchor point, enable a user equipment to communicate securely through a UMTS, and further improve security of data transmitted in the UMTS. | 11-21-2013 |
20140023101 | SINGLE-CAVITY DUAL-ELECTRODE DISCHARGE CAVITY AND EXCIMER LASER - A single-cavity dual-electrode discharge cavity and an excimer laser including such a discharge cavity are disclosed. The discharge cavity may comprise a cavity body and two sets of main discharge electrodes. The cavity body may comprise a left chamber and a right chamber arranged to form a symmetric dual-chamber cavity. The left and right chambers can interface and communicate with each other at a plane of symmetry of the entire discharge cavity. The two sets of main discharge electrodes can be disposed in the left and right chambers on the upper side, respectively. According to the present disclosure, the single-cavity configuration can be used to achieve functions of dual-cavity configurations, such as MOPA, MOPO, and MOPRA. Thus, it is possible to reduce system complexities and also ensure synchronization of discharging in the discharge cavity. | 01-23-2014 |
20140185585 | METHOD FOR TRANSFERRING CONTEXT AND MOBILITY MANAGEMENT ENTITY - The present invention discloses a method for transferring a context and a mobility management entity. When S | 07-03-2014 |
20140233735 | ENCRYPTION METHOD, DECRYPTION METHOD, AND RELATED APPARATUS - Embodiments of the present application provide an encryption method, a decryption method, and a related apparatus. The encryption method includes: generating a keystream, where the keystream is used to encrypt a part of data to be encrypted in an initial layer-3 message, and the part of data to be encrypted includes small data; generating, by performing an exclusive OR operation on the keystream and the initial layer-3 message, an initial layer-3 message in which the part of data is encrypted; and sending the initial layer-3 message in which the part of data is encrypted, where the initial layer-3 message includes an added encryption indication, and the encryption indication is used to indicate that the part of data to be encrypted in the initial layer-3 message is encrypted. | 08-21-2014 |
20140233736 | METHOD AND RELATED DEVICE FOR GENERATING GROUP KEY - Embodiments of the present invention provide a method and a related device for generating a group key. The method includes: obtaining a group ID of a group where a machine type communication MTC device is located; obtaining a group communication root key corresponding to the group ID; generating a group key corresponding to the group ID according to the group communication root key; and sending the group key encrypted by using an access stratum key of the MTC device to the MTC device, so that the MTC device obtains the group key through decryption according to the access stratum key of the MTC device. According to the foregoing technical solutions, a base station may allocate, to an MTC device, a group key corresponding to a group where the MTC device is located. | 08-21-2014 |
20140237559 | METHOD AND RELATED DEVICE FOR GENERATING GROUP KEY - A method and a related device for generating a group key are provided. A group ID of a group to which an MTC device belongs and a group communication root key related to a security key are received from an MME, where the security key is corresponding to the group ID; a group key corresponding to the group ID is generated according to the group communication root key; and a generating parameter used to generate the group key is sent to the MTC device, so that the MTC device generates the group key according to the group key generating parameter and a security key saved in the MTC device. Therefore, a base station only needs to maintain a same group key for a same group, thereby reducing the operation complexity of the base station. | 08-21-2014 |
20140310523 | METHOD, APPARATUS AND SYSTEM FOR SECURE COMMUNICATION OF LOW-COST TERMINAL - Embodiments of the present invention provide a method for secure communication of a low-cost terminal, which solves a communication security problem in the low-cost terminal and on a network side. The method includes: selecting, by an access point, a ciphering algorithm and an integrity algorithm according to a security capability of the low-cost terminal after successful authentication and key negotiation between the low cost terminal and a mobility management entity, and acquiring a cipher key and an integrity key according to the ciphering algorithm and the integrity algorithm; sending, by the access point, a security mode command including the ciphering algorithm and the integrity algorithm to the low-cost terminal so that the low-cost terminal calculates the cipher key and the integrity key; and receiving, by the access point, a security mode complete response message sent by the low-cost terminal. Embodiments of the present invention apply to radio communication. | 10-16-2014 |
20140357262 | METHOD AND APPARATUS FOR SECURE PROCESSING OF SHORT MESSAGE - The present invention discloses a method and apparatus for secure processing of a short message, and relates to the field of wireless communications technologies. The method includes: receiving, by a second device, identifier information sent by a first device; sending a rejection indication or a query result to the first device if the second device determines, according to the identifier information, that a receiver is a machine type communication MTC device or determines that the identifier information is not in an authorization list; or sending an acknowledgement indication or a query result to the first device if the second device determines, according to the identifier information, that a receiver is another device other than an MTC device or determines that the identifier information is in an authorization list. Embodiments of the present invention are mainly applied to a secure processing procedure of a short message. | 12-04-2014 |
20150038186 | MTC Device Communication Method, Device, and System - Embodiments of the present invention provide an MTC device communication method, device, and system. A second network element receives, a query message sent by a first network element after the first network element identifies that a type of a received short message is a preset-type short message. The query message comprises an identifier of a receiver of the short message and an identifier of a sender of the short message. The second network element checks whether the sender is authorized to send the preset-type short message to the receiver. The second network element sends a message to the first network element indicating whether or not to send the short message to the receiver. | 02-05-2015 |