Abstract:
Certain aspects of the present disclosure provide techniques for managing security keys for enciphering and deciphering packets transmitted in a wireless communications system. According to certain aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes obtaining an indication of a key area identifier (ID) of a first cell node, wherein the key area ID identifies a set of cell nodes that are associated with a network node that uses a first key for enciphering or deciphering messages and communicating a first set of messages with the first cell node using the first key for enciphering or deciphering the first set of messages.
Abstract:
Systems and methods for providing authentication key agreement (AKA) with perfect forward secrecy (PFS) are disclosed. In one embodiment, a network according to the disclosure may receive an attach request from a UE, provide an authentication request including a network support indicator to a network resource, receive an authentication token from the network resource, such that the authentication token includes an indication that a network supports PFS, provide the authentication token to the UE, receive an authentication response including a UE public key value, obtain a network public key value and a network private key value, determine a shared key value based on the network private key value and the UE public key value, bind the shared key value with a session key value to create a bound shared key value, and use the bound shared key value to protect subsequent network traffic.
Abstract:
A method includes: establishing a telecommunication link between a device and a service provider system via a telecommunication network; receiving a device public key via the telecommunication network from the device at the service provider system, the device public key predating the establishment of the telecommunication link; verifying, at the service provider system, that the device stores a device private key in a secure storage area of the device, the device private key corresponding to the device public key, the device public key and the device private key being a cryptographic key pair; and authorizing, by the service provider system, sign-up of the device for service enrollment in response to verifying that the device stores the device private key in the secure storage area of the device.
Abstract:
Techniques for authenticating a user of a mobile device at a computing platform are provided. A method according to these techniques includes generating a first profile and second profile of user behavior for the user of the mobile device, the first profile comprising a first type of profile having at least a first duration and the second profile comprising a second type of profile having a second duration that is shorter than the first duration, monitoring user behavior to generate usage behavior data, comparing the usage behavior data to the first profile and the second profile, performing a first type of authentication action responsive to the usage behavior data deviating from the first profile, and performing a second type of authentication action responsive to the usage behavior data deviating from the second profile.
Abstract:
Disclosed is a method for transitioning a remote station from a current serving network node having an enhanced security context to a new serving network node. In the method, the remote station provides at least one legacy key, and generates at least one session key based on a calculation using a root key and using an information element associated with the enhanced security context. The remote station forwards a first message having the information element to the new serving network node. The remote station receives a second message, from the new serving network node, having a response based on either the legacy key or the session key. The remote station determines that the new serving network node does not support the enhanced security context if the response of the second message is based on the legacy key. Accordingly, the remote station protects communications based on the legacy key upon determining that the enhanced security context is not supported.