Secure pairing of wireless devices

A facility for establishing a wireless connection between first and second devices is described. On the first device, the facility causes a one-time pairing code to be displayed, then wirelessly receives from the second device a wireless connection solicitation having contents. On the first device, in response to the receiving, the facility determines whether the contents reflect the one-time pairing code. In response to determining that the contents reflect the one-time pairing code, on the first device, the facility establishes the wireless connection between the first and second devices.