Abstract: Technologies are presented for securing NFC exchange through movement of at least one of the communicating devices. In some examples, a first device, utilizing a communication module and a processor, may transmit an initial NFC handshake signal as the first device is being moved relative to a second device. The second device, utilizing a communication module, two or more antennae, and a processor, may receive the initial NFC handshake signal from the first device. Each device may record a movement of the first device. The second device may transmit a message to the first device that includes a recording of the movement at the second device and a temporary secret. Once the first device determines that the movement recorded at the second device matches the movement recorded at the first device, the first device may use the temporary secret to encrypt further communication with the second device.

Abstract: Technologies are presented for securing NFC exchange through movement of at least one of the communicating devices. In some examples, a first device, utilizing a communication module and a processor, may transmit an initial NFC handshake signal as the first device is being moved relative to a second device. The second device, utilizing a communication module, two or more antennae, and a processor, may receive the initial NFC handshake signal from the first device. Each device may record a movement of the first device. The second device may transmit a message to the first device that includes a recording of the movement at the second device and a temporary secret. Once the first device determines that the movement recorded at the second device matches the movement recorded at the first device, the first device may use the temporary secret to encrypt further communication with the second device.

Abstract: Technologies are generally described for peer-to-peer or peer-to-server-to-peer communication systems based on mobile devices, servers, and personal computers, which utilize proximity communication and optical codes such as two-dimensional barcodes, in order to securely initiate and authorize digital data, file, and multimedia transfers, as well as digital financial transactions.

Abstract: Technologies are presented for securing NFC exchange through movement of at least one of the communicating devices. In some examples, a first device, utilizing a communication module and a processor, may transmit an initial NFC handshake signal as the first device is being moved relative to a second device. The second device, utilizing a communication module, two or more antennae, and a processor, may receive the initial NFC handshake signal from the first device. Each device may record a movement of the first device. The second device may transmit a message to the first device that includes a recording of the movement at the second device and a temporary secret. Once the first device determines that the movement recorded at the second device matches the movement recorded at the first device, the first device may use the temporary secret to encrypt further communication with the second device.

Abstract: Technologies are presented for securing NFC exchange through movement of at least one of the communicating devices. In some examples, a first device, utilizing a communication module and a processor, may transmit an initial NFC handshake signal as the first device is being moved relative to a second device. The second device, utilizing a communication module, two or more antennae, and a processor, may receive the initial NFC handshake signal from the first device. Each device may record a movement of the first device. The second device may transmit a message to the first device that includes a recording of the movement at the second device and a temporary secret. Once the first device determines that the movement recorded at the second device matches the movement recorded at the first device, the first device may use the temporary secret to encrypt further communication with the second device.

Abstract: Technologies are generally described for peer-to-peer or peer-to-server-to-peer communication systems based on mobile devices, servers, and personal computers, which utilize proximity communication and optical codes such as two-dimensional barcodes, in order to securely initiate and authorize digital data, file, and multimedia transfers, as well as digital financial transactions.

Abstract: An efficient mechanism is provided to track and collect changes that have occurred in a database since a given point in time in a manner that is accessible and usable to systems that implement synchronization protocols, has a minimal impact on the performance of the database, and allows the identification of small pieces of data as changed.