Âé¶¹´«Ã½

Technology

Listen – it's me!

By Barry Fox

4 January 2003

Keyboard “sniffing” software installed by hackers can grab your Internet logins and passwords. So how do you establish your identity over the Internet without typing anything into your PC? Use a kind of ID based on cellphone tones, says Encotone of Jerusalem (WO 01/45054).

Mobile phones can generate secure personal ID codes by combining and encrypting the handset’s unique “IMEI” number with the SIM card’s number. Encotone’s cellphone converts this secure code into audible tones that you play into a PC’s microphone. The PC then reconstructs the ID code from these warbles and sends it over the Internet.

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