摘要:
A method for enabling a mobile node to transmit encrypted data over a path including a wireless link and an untrusted link, while avoiding double encryption on any link. The data on the end-to-end path is encrypted using an application specific security mechanism, or an L2 mechanism is used for encrypting the data on the wireless link as mandated by the wireless standards, and an application specific security mechanism is used for encrypting the data on the untrusted link. By avoiding redundant double encryption, the method of the invention results in optimizing the use of network resources in bandwidth-limited wireless networks and increases the life of the mobile node battery.
摘要:
A method comprising a plurality of operations. An operation is provided for receiving an authentication certificate of a called party. Telephony apparatus of a party calling the called party performs receiving the authentication certificate. An operation is provided for facilitating authentication of the authentication certificate and called party identification information thereof in response to receiving the authentication certificate. An operation is provided for providing an authentication notification in response to facilitating the authentication of the authentication certificate and the called party identification information. The authentication notification indicates successful authentication in response to the authentication being successful and wherein the authentication notification indicates non-successful authentication in response to the authentication not being successful.
摘要:
A method is provided in a telecommunications network for authenticating a sender (10) of a message to a recipient of the message. The method includes: registering the sender (10) with a trusted certificate authority (CA) (20), the registering including providing the CA (20) with (i) identification information identifying the sender (10) and (ii) a public key (12) of the sender (10); creating an authentication certificate (30) including the sender's identification information and the sender's public key (12); signing the certificate (30) with a private key (28) of the CA (20); provisioning a message sending device (52) of the sender (10) with the certificate (30) that was signed with the private key (28) of the CA (20); provisioning a message receiving device (40) of the recipient with a public key (24) of the CA (20), the CA's public key (24) being a corresponding counterpart to the CA's private key (28); generating a signature with a private key (14) of the sender (10), the sender's private key (14) being a corresponding counterpart for the sender's public key (12); sending a message from sender's message sending device (52), the message including the certificate (30) and the signature; retrieving the message with the recipient's message receiving device (40); using the CA's public key (24) with which the recipient's receiving device (40) was provisioned to obtain the sender's public key (12) from the certificate (30) received in the retrieved message; and, using the sender's public key (12) obtained from the certificate (30) received in the retrieved message to verify the signature generated with the sender's private key (14).
摘要:
Methods for authenticating peer mobile network nodes for establishing a secure peer-to-peer communications context in an ad-hoc network are presented. The methods include accessing wireless infrastructure network entities at low bandwidth and for a short time duration to obtain cryptographic information regarding a peer mobile network node for the purpose of establishing secure peer-to-peer communications therewith ad-hoc network. Having received cryptographic information regarding a peer mobile network node, the method further includes challenging the peer network node with a challenge phrase derived from the cryptographic information received, receiving a response, and establishing a secure communications context to the peer mobile network node based on the validity of the received response. Advantages are derived from addressing security threats encountered in provisioning ad-hoc networking, by leveraging wireless infrastructure network security architecture, exemplary deployed in UMTS/GSM infrastructure networks, enabling seamless mobile network node authentication through the existing UMTS and/or GSM authentication infrastructure, while pervasively communicating with peer mobile network nodes in an ad-hoc network.
摘要:
A method comprises a plurality of operations. An operation is performed for requesting authentication of a target call session party during a call session between the target party and a call session party requesting said authentication. An operation is performed for receiving authentication information of the target call session party during the call session in response to requesting said authentication. An operation is performed for facilitating authentication of said authentication information during the call session in response to receiving said authentication information.
摘要:
Mechanisms and methods for providing a mobile/wireless device with protection against false access-point/base-station attacks using MAC address protection are presented. The mobile/wireless device known as mobile client (MC) gains access to wireless network by discovering and selectively associating with an access point (AP). The MAC addresses of both the AP and the MC are protected during all communications between the AP and MC during the discovery phase. This protection mitigates MAC address spoofing type attacks on both the AP and the MC.
摘要:
Communication traffic control techniques are disclosed. Targeted communication traffic control may be established in accordance with traffic control rules generated at a mobile communication device which is operating within a service area of a traffic control system. Communication traffic destined for or originating at the mobile communication device is then permitted or blocked by the traffic control system based on the traffic control rules. When a mobile communication device moves from a communication system service area served by one traffic control system to a service area served by a new traffic control system, any traffic control rules currently in effect at the traffic control system are preferably transferred to the new traffic control system. In some embodiments, multiple traffic control rules are aggregated before being transferred to a traffic control system.
摘要:
A system, device and method for providing data availability for a portable communication device, including various combinations of the following steps: notifying an operator that the portable communication device is missing; triggering encryption of data on the portable communication device; sending a data retrieval command to the portable communication device; authenticating the data retrieval command; retrieving data from the portable communication device; identifying a portion of the data retrieved from the portable communication device that is confidential; encrypting the identified confidential data on the portable communication device; and erasing the identified confidential data from the portable communication device or recovering the portable communication device and decrypting the confidential data on the portable communication device.
摘要:
Methods and systems for secure communications are provided. Secure end-to-end connections are established as separate multiple secure connections, illustratively between a first system and an intermediate system and between a second system and an intermediate system. The multiple secure connections may be bound, by binding Internet Protocol Security Protocol (IPSec) Security Associations (SAs) for the multiple connections, for example, to establish the end-to-end connection. In the event of a change in operating conditions which would normally require the entire secure connection to be re-established, only one of the multiple secure connections which form the end-to-end connection is re-established. Separation of end-to-end connections in this manner may reduce processing resource requirements and latency normally associated with re-establishing secure connections.
摘要:
In accordance with at least one embodiment of the present invention, IP application traffic can be provided confidentiality to and from one or more mobile nodes (MNs) belonging to the same domain even when such MNs are remotely located. It is possible to provide, preferably at all times, a similar level of confidentiality and integrity in communications between MNs as is typically provided within a corporate environment (e.g., within a secured intranet). Secure and efficient communication is provided when one or more MNs is communicating via a connection that cannot be presumed to be inherently secure, for example, a connection to a public network such as the internet or a network outside of a secured intranet.