Patent ID: 8171292

Claim:
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 image for transmission to the second computing device, wherein the image 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 image to the second computing device at which the password is determinable from the image; 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 computing a confirmation value based on at least the one or more security parameters and the key derived at the first computing device, and transmitting the confirmation value to the second computing device, wherein the one or more security parameters are authenticated when the confirmation value is successfully verified at the second computing device; and wherein the one or more security parameters comprise one or more public keys stored on the first computing device.