Patent ID: 8464062
Filing Date: 2013-06-11
Classification: H04L

Abstract:
1. A method of transmitting one or more security parameters from a first computing device to a second computing device, the method being performed at the first computing device, the method comprising: generating an audio signal for transmission to the second computing device, wherein the audio signal is a representation of first data, the first data comprising a password, wherein the password is not derived from the one or more security parameters; transmitting the audio signal to the second computing device at which the password is determinable from the audio signal; and performing a key exchange with the second computing device over a communication channel between the first and second computing devices, wherein second data is exchanged between the first and second computing devices in accordance with a key exchange protocol, such that a key is derived at each of the first and second computing devices using the password, and wherein the one or more security parameters is transmitted to the second computing device during the key exchange; wherein said performing further comprises wherein the one or more security parameters comprise one or more public keys stored on the first computing device.