发明名称 Computer security system and method
摘要 The present invention is a computer security system and method in which the various algorithms not only do not search for or detect the presence of a steganographic or other hidden image in a data file or across data files, but also includes at least one or more combined approaches for altering and neutralizing any hidden messages without significantly detracting from the underlying integrity of the data file or files thus treated.
申请公布号 US9519776(B2) 申请公布日期 2016.12.13
申请号 US201414267545 申请日期 2014.05.01
申请人 Duquesne University of the Holy Spirit 发明人 Wood Charles
分类号 G06F11/00;G06F21/55;H04N1/32 主分类号 G06F11/00
代理机构 代理人 Johnson, Esq. Barbara E.
主权项 1. A computer security method consisting essentially of selecting a computer; selecting a program embodied in said computer configured to execute steps; said program being free from any code or algorithm for identifying the presence of a steganographic payload in a computer file to be analyzed by said program; and said program containing algorithms to remove one or more hidden messages in a data file or across data files by selecting at least one data file containing a hidden message and selected from the group consisting of an image file, an audio file, a video file, a Flash-Adobe type file and a Metadata document support type file, and changing in said at least one data file some or all of the one or more least significant bit or bits in bytes that are used to represent image colors or grey scale, audio sounds, animation, spacing, font characteristics, page layout characteristics, metadata structures, packet headers and/or video within multimedia data files, in a way that cannot be reversed once the change is deployed, by i) changing all the least significant bits to 1; or ii) changing all the least significant bits to 0; or iii) randomly changing some of the one or more least significant bits; or iii) incrementing or decrementing the value of the least significant bit by some value; or iv) using some computer algorithm, program, or module that alters the least significant bits, prior to any reception or transmission of the data file, wherein when said program is deployed using a computer to process at least one data file, said hidden message in said data file is neutralized.
地址 Pittsburgh PA US