RS Improving security of Reed-Solomon Code using code personalization

摘要

The present invention relates to a method for enhancing security of an RS code by personalizing a code, the method comprising: personalizing a code with a user key (step S1); A dispersion matrix generation step (S2) of generating a dispersion matrix; An encoding step (S3) of encoding user data; A fragmenting step of slicing each file into n pieces of shares (step S4); And a distributed storage step (S5) of distributing and storing the data into n pieces of shares. In this way, a codebook is generated based on the user key so as to have a different dispersal matrix for each user, (RS) code, which is a fast encryption / decryption algorithm based on Reed-Solomon code. It increases the storage efficiency, which is an advantage of existing RS code (Reed-Solomon code) In addition to being able to increase the security level, the sequence A is randomly generated, and the other process is the same as the existing RS code (Reed-Solomon code). Therefore, Reed-Solomon ) It is a useful invention that has a special advantage that the result of optimization implementation can be modified by slightly modifying the generation part of the dispersion matrix.;