Optical storage media and the corresponding cryptography for data encryption thereof
First Claim
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1. A data processing method for an optical storage media, comprising:
- (a) reading a record of data from said optical storage media and recording said data on a system memory unit;
(b) repeatedly reading said same record of data and recoding said data on said system memory unit; and
(c) performing a comparison operation on said data recorded in said step (b) and said data recorded in said step (a) to generate a set of code pairs containing at least two codes, among which two codes are used as two encryption/decryption keys in a data encryption/decryption operation.
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Abstract
Based on the demand of developing a data encryption technique for the optical storage media, the present invention discloses a cryptography for data encryption based on a design of specific hardware conditions, so as to achieve the security requirements for the encrypted digital data stored in the optical storage media and the design requirements for the security issues on the optical storage media for software vendors in the current market.
20 Citations
13 Claims
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1. A data processing method for an optical storage media, comprising:
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(a) reading a record of data from said optical storage media and recording said data on a system memory unit; (b) repeatedly reading said same record of data and recoding said data on said system memory unit; and (c) performing a comparison operation on said data recorded in said step (b) and said data recorded in said step (a) to generate a set of code pairs containing at least two codes, among which two codes are used as two encryption/decryption keys in a data encryption/decryption operation. - View Dependent Claims (2, 3, 4, 5)
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6. An optical storage media characterized in that:
- wherein said optical storage media contains at least one damageable memory cell for providing a capability to record digital data;
after a first data reading by a light source is completed, said memory cell is changed and thus the data is damaged, such that said light source cannot perform a second data reading; and
said optical storage media also contains a general memory cell that provides a formal capability to repeatedly read the data. - View Dependent Claims (7, 8, 9)
- wherein said optical storage media contains at least one damageable memory cell for providing a capability to record digital data;
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10. An optical storage media characterized in that:
- wherein said optical storage media contains at least a Read Once/Reversible reaction memory cell for providing a capability to record digital data;
after a first data reading by a light source is completed, said memory cell is changed, and thus the data'"'"'s logic level is reversed, such that at a second data reading, said light source can obtain a logic level that is reversed from said logic level of said first data reading;
afterwards said memory cell permanently sustains said data with said reversed logic level and does not change anymore; and
said optical storage media also contains a general memory cell that provides a formal capability to repeatedly read the data. - View Dependent Claims (11, 12, 13)
- wherein said optical storage media contains at least a Read Once/Reversible reaction memory cell for providing a capability to record digital data;
Specification