×

Fixed content distributed data storage using permutation ring encoding

  • US 7,240,236 B2
  • Filed: 03/23/2004
  • Issued: 07/03/2007
  • Est. Priority Date: 03/23/2004
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method to protect a data file against loss of data, wherein the data file comprises a set of N data blocks A1, . . . , An that are stored in N respective nodes, comprising:

  • generating a k×

    n matrix of code blocks;

    storing K code blocks in K respective nodes, distinct from the N respective nodes, wherein each code block has an ith code block computed as;

    Ci=f(gi1(A1), . . . gin(An)), where each g is a permutation operator that comprises a superposition of cyclic permutations.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×