Abstract: The invention provides a device and a method for frequent verifications of the identity of a user performed during a long session of client-server communication by secure exchange of keys between the client and the server. The device is a computer mouse with embedded camera and embedded microphone. The camera is used to make pictures of a user's palm; the microphone is used to register a sound of user's pulse. The method has zero privacy leakage because the user is represented at the server by an array of random numbers, which have nothing to do with his biometric data. The security of the system is difficult to break because the exchange keys are different on each request/response.

Abstract: The invention provides: methods, languages, and systems for parallel algorithmic trading of financial instruments. Each instrument of interest is included in a parallel list, in a reference list, or in both lists. Market data messages are decoded by parallel threads and converted into data series. The number of the threads is preferably equal to the number of the messages in a set of messages. A trader/market regulator selects or creates a trading/overseeing algorithm consisting of expressions based on data series extracted from the messages and on predefined functions. Some of the expressions have outputs representing buy/sell/cancel orders or have outputs aimed for overseeing trading activity. The algorithm is executed by parallel threads. The number of the threads is preferably equal to the number of the instruments in the parallel list.

Abstract: The invention provides a device and a method for frequent verifications of the identity of a user performed during a long session of client-server communication by secure exchange of keys between the client and the server. The device is a computer mouse with embedded camera and embedded microphone. The camera is used to make pictures of a user's palm; the microphone is used to register a sound of user's pulse. The method has zero privacy leakage because the user is represented at the server by an array of random numbers, which have nothing to do with his biometric data. The security of the system is difficult to break because the exchange keys are different on each request/response.

Abstract: The invention provides: methods, languages, and systems for parallel algorithmic trading of financial instruments. Each instrument of interest is included in a parallel list, in a reference list, or in both lists. Market data messages are decoded by parallel threads and converted into data series. The number of the threads is preferably equal to the number of the messages in a set of messages. A trader/market regulator selects or creates a trading/overseeing algorithm consisting of expressions based on data series extracted from the messages and on predefined functions. Some of the expressions have outputs representing buy/sell/cancel orders or have outputs aimed for overseeing trading activity. The algorithm is executed by parallel threads. The number of the threads is preferably equal to the number of the instruments in the parallel list.

Abstract: A method of secure biometric authentication is disclosed that shuffles arrays of biometric data in a sequence determined by user's secret input. The user is authenticated by comparing arrays of biometric data shuffled on the client side with the arrays of biometric data stored on the server side and shuffled in the very same sequence. Additional layer of security is provided by second shuffling in accordance with a number generated on the server and transmitted to the client after encoding with the user's public key/string retained on the server during enrollment. Real biometric data and sequences of shuffling are neither stored not transmitted anywhere; therefore, the privacy of the user is guaranteed. Security of the data transmitted to the server is not relevant because an attacker does not know the user's private key which is repeatedly recreated on the client from the real biometric data of the user.

Abstract: A method of secure biometric authentication is disclosed that shuffles the arrays of biometric data in the sequence determined by user's secret input. The shuffled biometric is used to authenticate the user by comparison against the biometric stored at server and shuffled in the very same sequence. Additional layer of security is provided by second shuffling in accordance with a number generated on the server and transmitted to the client after encoding with the user's public key/string. Real biometric and sequences of shuffling are neither stored not transmitted anywhere; therefore, the privacy of the user is guarantied. Security of the data transmitted to the server is not relevant because an attacker does not know the user's private key which is repeatedly recreated on the client from the real biometric of the user.