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Node computing data encryption method

  • US 9,009,460 B2
  • Filed: 03/13/2013
  • Issued: 04/14/2015
  • Est. Priority Date: 10/31/2012
  • Status: Active Grant
First Claim
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1. A data encryption method, adapted to a node computing device in a cloud server system, and comprising:

  • receiving a primary data;

    determining a power of a finite field according to a basis of the primary data;

    determining a dimension of an encrypted matrix according to the power of the finite field;

    computing an encryption length, and sequentially obtaining a plurality of data segments matching the encryption length, from the primary data according to the encryption length; and

    obtaining a plurality of encrypted segments by encrypting each of the plurality of extracted data segments respectively through the encrypted matrixwherein the basis of the primary data and the power of the finite field satisfy a first limitation condition, and the first limitation condition comprises;

    2 k

    d, wherein k represents the power of the finite field, and d represents the basis of the primary data.

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