Information security – Access control or authentication – Stand-alone
Reexamination Certificate
2006-10-16
2010-11-23
Truong, Thanhnga B (Department: 2438)
Information security
Access control or authentication
Stand-alone
C726S005000, C713S165000, C713S166000, C713S168000
Reexamination Certificate
active
07841000
ABSTRACT:
Protection of an authentication password stored in a database held by a SAM of Windows® is strengthened. A GINA, a part of the OS, receives an authentication password in ASCII codes. The authentication password is converted to first UNICODES, and the first UNICODES are salted with a random number and converted to second UNICODES. The random number used for salting is associated with a user account and a password and stored in a read/write protected non-volatile memory or a non-volatile memory which can be accessed only by a BIOS. An LSA of the OS can process UNICODES without being changed.
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author: Keith Brown Title: Customizing GINA part 1 and part 2 Date; Jun. 2005.
Challener David Carroll
Childs Philip Lee
Dion, II Norman Arthur
Kawano Seiichi
Sugiyama Yuji
Lenovo ( Singapore) Pte. Ltd.
Rogitz John L.
Truong Thanhnga B
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