U.S. hit TV series "Prison Break" in such a scene, a man holding the fluorescent powder, gently blowing, the prison security password lock the keyboard, always use a few figures now, "being himself", the heavily guarded prison gate be easily opened.
Yesterday, reporters from the Shanghai Jiao Tong University MBA Warwick Cup 2007 semi-finals in entrepreneurial contest was informed that the school developed a kind of MBA students Junjie anti-peeping password technology to effectively solve the difficult problem of password stolen. It is learned that the business plan contingent from the 28 winners of the semi-finals, finalists, waiting for venture investment.
Password theft trigger inspiration
Speaking of this invention, Junjie Chen said that several years ago, a friend in the ATM machine withdrawals as password theft, loss of a few thousand dollars. So, he found as
The popularity of bank card, "Card Security" has become a social problem. Later, Chen Junjie examine a number of new security code keyboard, found the technology was put forward some methods, but there are some difficulties to promote them. If someone proposed the concept of dynamic random numeric keypad, so that key bit different with the usual keyboard, and the location of each key is randomly determined each time is different, the user is not common to see such 1234567890 key bit sequence, but this is probably the order of 3,950,872,416 so location inferred by spy key figures impossible.
"Disordered arrangement of nice, but it is very difficult for users to use, enter the password when looking at specific key positions, prone to password error." Junjie Chen pointed out that this is why since the advent of these patents, although the application of but can not fully promote the further reason.
Dynamic password key anti-peeping
How to solve the shortcomings of these inventions? Junjie thought of old-fashioned telephone of the "circular dial keyboard" - based on liquid crystal touch screen, usually does not display the number, once users, the keyboard can be shaped "Dynamic scroll" to show password number key, successful production of "misleading" to prevent peeping.
"Although the random key bits, but they are sequenced, easy to use. In the future, enter a password just like phone calls, like the first time ordinary people can learn to use and adapt to this keyboard." Junjie Chen said, As the number times the number of key positions change, so that criminals can not enter a password based on user location and leave fingerprints on the keyboard, guess the password. "This is a common code of existing keyboard replacement product, can solve issues such as password theft." Junjie Chen said that the technique has been applied for a patent.
According to reports, the patent password has broad market prospects technology and applications can be used for ATM machines, POS machines enter the system password and password safe, password access control systems, home.