Hard disk password lock
First Claim
Patent Images
1. A computer system comprising:
- a CPU;
a mass storage device;
a bus for coupling the CPU and the mass storage device;
a encryption circuit intercepting data traveling between said CPU and said mass storage device, for encrypting and decrypting data as it travels to and from said mass storage device and said CPU.
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Abstract
The invention provides an encryption circuit for encrypting and decrypting data as it travels to and from a hard disk. The encryption circuit can be turned on or off under control of the BIOS program and a user supplied password. With the present invention, a removed hard disk cannot be read without the user supplied password and a similar encryption circuit.
102 Citations
8 Claims
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1. A computer system comprising:
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a CPU;
a mass storage device;
a bus for coupling the CPU and the mass storage device;
a encryption circuit intercepting data traveling between said CPU and said mass storage device, for encrypting and decrypting data as it travels to and from said mass storage device and said CPU. - View Dependent Claims (2, 3, 4, 5)
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6. A mass storage device for installation in a computer comprising:
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mass storage media for storing data;
means for storing a password;
mounting means for mounting said mass storage device in a computer; and
an encryption circuit for encrypting data using said password as a key.
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7. A method for encrypting and decrypting data comprising:
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providing a computer system including a CPU and a mass storage device connected by a bus;
requesting a password from a user;
encrypting data, using said password as a key, as it travels from said CPU to said mass storage device; and
decrypting data using said password as a key, as it travels from said mass storage device to said CPU. - View Dependent Claims (8)
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Specification