Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection
Reexamination Certificate
2002-09-30
2008-10-07
Sheikh, Ayaz (Department: 2131)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
By stored data protection
C713S162000, C713S165000, C726S026000, C380S255000, C380S264000, C380S037000, C380S044000, C380S028000
Reexamination Certificate
active
07434069
ABSTRACT:
A method and device performing encryption/decryption of data on a mass storage media. A plurality of different encryption/decryption algorithms with associated keys can be utilised on different storage areas of the media, such as blocks/sectors on a hard disk drive, thereby increasing the security of the data significantly. In addition, combining the keys with random numbers for a further increase of the security of the data. The block/sector number is used to select an algorithm with associated key and random number. The device and method encrypts/decrypts emails, networking traffic etc. and other types of electronic data. In addition, the device provides an authentication session when booting a computer from a hard disk drive, and even be used to select a certain operating system and/or environment associated with a certain key carrier by changing the Master Boot Record of the disk system.
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High Density Devices AS
Moorthy Aravind K
Sheikh Ayaz
Young & Thompson
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