Camera-activated data transfer from a source computing device to a target computing device

A source computing device comprising:

• a communications interface to communicate with a network;
• a display device;
• a processor device coupled to the communications interface and the display device, the processor device to:
• provide on the display device a filename identifier (ID) that identifies a file stored on the source computing device;
• receive a selection of the filename ID;
• generate a unique identifier;
• generate association data that associates the unique identifier with the file;
• encode the unique identifier into a coded image;
• present the coded image on the display device;
• receive a first file transfer request via the communications interface from a target computing device to transfer the file via the communications interface to the target computing device, the first file transfer request including the unique identifier;
• responsive to receiving the first file transfer request, send the file to the target computing device;
• and
• invalidate the association data to render invalid any subsequent file transfer request that includes the unique identifier.

A computer program product for transferring data from a source computing device to a target computing device, the computer program product stored on a non-transitory computer-readable storage medium and including instructions to cause a processor device to carry out steps of:

• providing on a display device a filename identifier (ID) that identifies a file stored on the source computing device;
• receiving a selection of the filename ID;
• generating a unique identifier;
• generating association data that associates the unique identifier with the file;
• encoding the unique identifier into a coded image;
• presenting the coded image on the display device;
• receiving a first file transfer request via a wireless communications interface from the target computing device to transfer the file via the wireless communications interface to the target computing device, the first file transfer request including the unique identifier;
• responsive to receiving the first file transfer request, sending the file to the target computing device;
• and
• invalidating the association data to render invalid any subsequent file transfer request that includes the unique identifier.