3 results about "Key assignment" patented technology

In one embodiment, a method for adaptive line key allocation for key expansion modules includes storing, by a process, a list of line keys for a phone that has a line key display and determining, by the process, a first set of line keys from the list of line keys to display on the phone when a key expansion module is paired to the phone and a second set of the line keys to display on the key expansion module. The method further includes determining whether the key expansion module is paired to the phone, displaying the first set of the line keys on the phone when the key expansion module is paired to the phone, and displaying the second set of the line keys on the key expansion module when the key expansion module is paired to the phone.

The invention provides a fine-grained PKI (Public Key Infrastructure) system and a fine-grained PKI method for vehicle-mounted ECUs (Electronic Control Units), a server-gateway-terminal three-layer collaborative PKI system is constructed, the fact that each ECU has high-cost hardware security capability is not forcedly solved, T-Box is used as a centralized security proxy base station, and the PKI system and the PKI method are integrated. The strong security capability of the cloud is radiated to each common ECU node in the vehicle, so that each ECU can sign, issue and update the digital certificate. According to the method, the security chip at the T-Box end can be used as a trust anchor point of the whole vehicle, and a unique cryptographic digital certificate is allocated to each key ECU through an agent and forwarding mechanism on the premise of not increasing the hardware cost of the ECU, so that the low-cost landing of one machine and one certificate is realized, and the safety of the whole vehicle is improved. The ECU can perform subsequent identity authentication and secure communication by using its unique digital certificate. Therefore, the method can solve the contradiction between'refined identity control 'and'whole vehicle hardware cost / resource limitation', and a centralized hardware trust root-based PKI system is constructed.

A computer-implemented method for storing and querying application performance monitoring (APM) data in a database, includes receiving data records of APM data, each data record associated to a key; storing the data records in storage containers in the database, each record stored in one storage container and each storage container identified by a unique storage identifier; assigning a unique index value to each unique key; defining a distribution function mapping the keys to the index values; generating a secondary function to approximate the distribution function; defining a mapping function to map the index values to lists of storage identifiers; and in response to a request to retrieve data records for a specified key or keys, querying the database to identify a list of storage identifiers based on the secondary function and the mapping function and retrieving the data records for the specified key or keys.