Method and system for data authentication for use with computer systems

摘要

Authentication of digital compressed data. In one aspect, a method for securing digital data for authentication includes generating a projection for each compressed video image and a projection hash of each of the projections. A data hash of the compressed video data in each compressed video image is also created. A digital signature is provided for each video image by concatenating the associated projection hash and data hash. The digital signatures are used in the authentication of the digital data.