METHOD FOR EMBEDDING SECRET MESSAGE INTO PNG IMAGE
| dc.citation.patentcountry | USA | zh_TW |
| dc.citation.patentnumber | 20110249813 | zh_TW |
| dc.contributor.author | LEE CHE WEI | en_US |
| dc.contributor.author | TSAI WEN-HSIANG | en_US |
| dc.date.accessioned | 2014-12-16T06:15:22Z | |
| dc.date.available | 2014-12-16T06:15:22Z | |
| dc.date.issued | 2011-10-13 | en_US |
| dc.description.abstract | A method for embedding a secret message into a PNG image comprises steps: converting a secret message into a plurality of secret codes; converting the secret codes into a plurality of secret shares; using a mapping process to modify values of the secret shares to approach a full-transparent value of an alpha channel of a PNG image, and sequentially embedding the mapped secret shares into the alpha channel. As the secret shares with high-transparent values, they leave the RGB channels untouched. Thus, embedding the secret shares into the PNG image does not make difference in the appearances between the secret-carrying image and the original PNG image. Therefore, the present invention can transmit secret message securely and realize covert communication. | zh_TW |
| dc.identifier.govdoc | H04L009/28 | zh_TW |
| dc.identifier.uri | https://ir.lib.nycu.edu.tw/handle/11536/105254 | |
| dc.language.iso | zh_TW | en_US |
| dc.title | METHOD FOR EMBEDDING SECRET MESSAGE INTO PNG IMAGE | zh_TW |
| dc.type | Patents | en_US |