Cryptography – Key management – Having particular key generator
Patent
1996-07-25
1999-07-06
Lee, Thomas C.
Cryptography
Key management
Having particular key generator
39518801, 395186, 395835, 380 25, 341 22, G06F 1300
Patent
active
059207302
ABSTRACT:
A computer keyboard unit is provided with a card interface for receiving an integrated circuit card (smartcard). Normally the keyboard operates in standard manner with the keyboard controller outputting key codes to an associated host computer in correspondence to the keys pressed by a user. However, when the user is required to input a PIN code for passing to a smartcard inserted in the card interface, the keyboard controller is set into a special mode in which it passes the key codes of the pressed keys directly to the card interface for transmission to the smartcard. The passing of the PIN code directly to the smartcard and not via the host computer, eliminates the possibility of the PIN code being copied and/or substitued for in passage through the host computer.
REFERENCES:
patent: 5375165 (1994-12-01), Haber et al.
patent: 5406624 (1995-04-01), Tulpan
patent: 5517569 (1996-05-01), Clark
patent: 5610601 (1997-03-01), Lahti et al.
patent: 5717428 (1998-02-01), Barrus et al.
patent: 5742756 (1998-04-01), Dillaway et al.
patent: 5748888 (1998-05-01), Angelo et al.
Elektronik, vol. 36, No. 21, Oct. 16, 1987, pp. 126-130, XP000030968 Guntner M et al: "Mehr Als Eine Tastatur" *the whole document*.
Hewlett--Packard Company
Lee Thomas C.
Wang Albert
LandOfFree
Computer keyboard that changes from normal mode to secure mode b does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Computer keyboard that changes from normal mode to secure mode b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Computer keyboard that changes from normal mode to secure mode b will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-906512