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US 2014/0129848 A1Published application
Method and Apparatus for Writing and Reading Hard Disk Data
OwnerYan Qianinventor
Life of this patent
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Abstract
Embodiments provide a method and an apparatus for writing and reading hard disk data. Plain-text data is encrypted by using an encryption key to obtain cipher-text data and a decryption key. The cipher-text data is written into an available area of a hard disk, and the decryption key is written into a reserved area of the hard disk.
Claims21
1-16. (canceled)
A method for writing hard disk data, the method comprising:
- acquiring plain-text data;
- encrypting the plain-text data using an encryption key to obtain cipher-text data and a decryption key;
- writing the cipher-text data into an available area of a hard disk;
- and
- writing the decryption key into a reserved area of the hard disk.
2 more elements
A method for reading hard disk data, comprising:
- reading cipher-text data from an available area of a hard disk;
- reading a decryption key from a reserved area of the hard disk;
- and
- decrypting the cipher-text data using the decryption key to obtain plain-text data.
1 more element
An apparatus for writing hard disk data, the apparatus comprising:
- an acquiring module, configured to acquire plain-text data;
- an encrypting module, configured to encrypt the plain-text data using an encryption key to obtain cipher-text data and a decryption key;
- and
- a writing module, configured to write the cipher-text data obtained by the encrypting module into an available area of a hard disk, and to write the decryption key obtained by the encrypting module into a reserved area of the hard disk.
1 more element
An apparatus for reading hard disk data, comprising:
- a reading module, configured to read cipher-text data from an available area of a hard disk and to read a decryption key from a reserved area of the hard disk;
- and
- a decrypting module, configured to decrypt, by using the decryption key read by the reading module, the cipher-text data read by the reading module to obtain plain-text data.
Dependencies are inferred from the claim text.