News Column

Patent Issued for Method and System for Secure Data Storage

May 27, 2014

By a News Reporter-Staff News Editor at Information Technology Newsweekly -- From Alexandria, Virginia, VerticalNews journalists report that a patent by the inventors Koeppe, Peter VanderSalm (San Diego, CA); Liang, Jason (Campbell, CA), filed on January 16, 2013, was published online on May 13, 2014.

The patent's assignee for patent number 8725943 is International Business Machines Corporation (Armonk, NY).

News editors obtained the following quote from the background information supplied by the inventors: "The present invention relates to data storage and in particular to security for storing data.

"Data security is becoming more important with the exponential growth of data that is stored by various means, such as magnetic and optical data storage. Data encryption provides a user a layer of security, wherein data is encrypted and can be accessed using an encryption key. However, encryption may be overcome, exposing sensitive data to unauthorized access.

"FIG. 1 shows a conventional system 10 that uses data encryption for secure data storage. Each data channel is assigned to a specific writer/reader (W-R) combination in a transducer head. The data is encrypted and written to tape. Specifically, FIG. 1 shows 16 channels assigned to a 16 W-R combination head, such that channel 1 is fixed to W-R 1, channel 2 is fixed to W-R 2, etc. Specifically, channel 1 data is written by writer 1 and read back by reader 1, the channel 2 data is written by writer 2 and read back by reader 2, and so on. The channel 1 data is from reader 1 and the channel 2 data is from reader 2, and so on. The data read back is then decrypted using a decryption key. However, once the encryption key becomes compromised, the data security in such a tape system is compromised. As such, additional or other techniques for providing data security are desirable."

As a supplement to the background information on this patent, VerticalNews correspondents also obtained the inventors' summary information for this patent: "A method and system for secure data storage and retrieval is provided. One embodiment involves dividing a sequence of data units into multiple subsets of data units corresponding to multiple data channels. The multiple data channels are assigned to multiple data writers based on a key code. Then, each subset of data units is transferred to a writer via an assigned channel for writing to storage media.

"Thereafter, to securely retrieve the stored data, each subset of data units is read from the storage media using a data reader. The original sequence of data units can only be reassembled using the key code for properly reassembling the subsets of data units into their original sequence.

"The key code is required to determine the sequence in which the read data units should be reassembled in proper sequence to obtain the original sequence of said plural data units. If the wrong key code is provided, then the data units cannot be reassembled in the proper sequence that represents the original data sequence."

For additional information on this patent, see: Koeppe, Peter VanderSalm; Liang, Jason. Method and System for Secure Data Storage. U.S. Patent Number 8725943, filed January 16, 2013, and published online on May 13, 2014. Patent URL:

Keywords for this news article include: Information Technology, Information and Data Storage, Information and Data Security, International Business Machines Corporation, Information and Data Encoding and Encryption.

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Source: Information Technology Newsweekly

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