摘要:
Disclosed is a method for virtual pairing of a first peer device with a second peer device. In the method, a nonce is generated at the first peer device for use in virtually pairing the first and second peer devices to establish a first-type wireless connection. The nonce is forwarded from the first peer device to the second peer device over an already established second-type wireless connection between the first and second peer devices. At least one new key is generated from the nonce and a shared key for the already established second-type wireless connection. The first peer device is virtually paired with the second peer device using the at least one new key to establish the first-type wireless connection between the first and second peer devices.
摘要:
Device authentication is based on the ability of a human to synchronize the movements of his or her fingers. A pairing procedure for two wireless devices may thus involve a synchronization test that is based on the relative timing of actuations of input devices on each of the wireless devices. In some aspects a synchronization test involves determining whether actuations of user input devices on two different wireless devices occurred within a defined time interval. In some aspects a synchronization test involves comparing time intervals defined by multiple actuations of user input devices on two wireless devices.
摘要:
The present invention relates to pyrrolo[3,2-c]pyridine-4-one 2-indolinone compounds of Formula (I) and their pharmaceutically acceptable salts thereof, wherein R1, R2, R3, R4, R5, R6, R7, R8 X, Y and have the meaning cited in the specification. Also disclosed are the pharmaceutical compositions containing the foregoing compounds, methods for the preparation and pharmaceutical use thereof, particularly as protein kinase inhibitors. Formula (I).
摘要:
Disclosed is a method for evaluating resistance to cryptanalysis of a cipher structure having a diffusion element including a linear transformation placed between differently-sized confusion elements at an input and an output of the diffusion element. A generalized minimum number of non-zero symbols at the diffusion element's input and output is determined. The diffusion element's input is divided into subset inputs, each having a size corresponding to the size of each confusion element at the diffusion element input. For each subset input, a subset number of non-zero symbols at the subset input and the diffusion element output is determined. Each subset number is summed to generate a summed subset number. The summed subset number is subtracted from the generalized minimum number to generate a worst-case number. An upper bound of a maximum differential characteristic probability is calculated and used to evaluate the cipher structure.
摘要:
A multi-party commitment method is provided whereby a joining node uses contributions provided by contributor nodes in a peer-to-peer overlay network to generate a node identifier. The joining node generates a first contribution and sends a join request to an introducer node (or a plurality of contributor nodes), where the join request seeks to obtain one or more contributions for generating the node identifier within an identifier space of the overlay network. A hash of the first contribution may be included as part of the join request. In response, the joining node may receive a plurality of contributions, wherein the contributions are bound to each other and the first contribution by a prior external multi-node commitment operation. The joining node can then generate its node identifier as a function of the first contribution and the received contributions. Consequently, collusion between nodes and malicious manipulation during ID generation can be frustrated.
摘要:
Disclosed is a method for transitioning access rights, in a remote station with role-based access control, for an unknown role having access rights defined by a central access control management module. In the method, a role capability table is maintained in the remote station specifying centrally-defined access rights of roles that are interpretable in the remote station. An access request associated with an unknown role that is not interpretable in the remote station is received. The access request includes a role transition list that relates the unknown role to other centrally-defined roles. At least one of the other centrally-defined roles is interpretable in the remote station. A role is selected, from the role transition list, that is interpretable in the remote station for interpreting the unknown role of the access request. Access is granted based on the access request associated with the unknown role using the access rights of the interpretable role selected from the role transition table.
摘要:
Disclosed is a method for evaluating resistance to cryptanalysis of a cipher structure having a diffusion element including a linear transformation placed between differently-sized confusion elements at an input and an output of the diffusion element. A generalized minimum number of non-zero symbols at the diffusion element's input and output is determined. The diffusion element's input is divided into subset inputs, each having a size corresponding to the size of each confusion element at the diffusion element input. For each subset input, a subset number of non-zero symbols at the subset input and the diffusion element output is determined. Each subset number is summed to generate a summed subset number. The summed subset number is subtracted from the generalized minimum number to generate a worst-case number. An upper bound of a maximum differential characteristic probability is calculated and used to evaluate the cipher structure.
摘要:
Disclosed is a method for verifying data packet integrity in a streaming-data channel. In the method, data packets are received from the streaming-data channel. Each data packet includes a data payload and a corresponding message integrity code. The received data packets are processed in a first processing mode, wherein the received data packets are forwarded to an application module before checking the integrity of the data packets using the respective message integrity codes. An integrity-check-failure measurement is generated for monitoring an integrity-check-failure rate in the first processing mode. If the integrity-check-failure measurement exceeds an integrity-check threshold, then the method transitions to a second processing mode. A received data packet is forwarded to the application module in the second processing mode only after passing the integrity check.
摘要:
Various operations may be performed based on a distance-related function associated with two or more devices. For example, an association procedure for two or more devices may be based on one or more determined distances. Similarly, presence management may be based on one or more determined distances. A distance-related function may take various form including, for example, a distance between devices, two or more distances between devices, a rate of change in a relative distance between devices, relative acceleration between devices, or some combination of two or more of the these distance-related functions.
摘要:
Disclosed is a method for visual verification a Captcha's source. In the method, a Captcha is served to a user. The Captcha includes visual information related to a characteristic of a source of the Captcha and related to a puzzle question of the Captcha. The visual information is for visual verification by the user of the Captcha's source. A response is received from the user based on the served Captcha. A determination is made as to whether the received response is a solution of the puzzle question of the served Captcha.