Optical storage media and the corresponding cryptography for data encryption thereof

• US 8,014,522 B2
• Filed: 07/27/2007
• Issued: 09/06/2011
• Est. Priority Date: 05/09/2007
• Status: Expired due to Fees

• Current Assignee: Wei Shen
• Original Assignee: Wei Shen
• Inventors: Yen, Sheng Shun, Shen, Wei
• Primary Examiner(s): LAFORGIA, CHRISTIAN A
• Application Number:
  US11/878,950
• Publication Number:
  US 20080282094A1
• Time in Patent Office: 1,502 Days
• Field of Search: 369/53, 369/100, 369/53.21, 380 44- 47, 720/719
• US Class Current: 380/44
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 2220/2537 Optical discs
• CPC Class Codes: H04L 9/0825 using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
• CPC Class Codes: H04L 9/14 using a plurality of keys or algorithms

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.

Claims

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 recording 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.

2. The data processing method for the optical storage media of claim 1, wherein said comparison operation comprises a XOR (Exclusive-OR) operation.

3. The data processing method for the optical storage media of claim 1, wherein said two encryption/decryption keys are respectively used as a public key and a private key in an asymmetric encryption/decryption technique operation.

4. The data processing method for the optical storage media of claim 3, wherein said asymmetric encryption/decryption technique is a public key infrastructure technique.

5. The data processing method for the optical storage media of claim 3, wherein one public key and one private key are used as passwords of a user ID authentication operation.