Design and Implementation of Linguistic Steganography for Chinese Text on Web Mail

• Main Authors: Chia-Yin Yang, 楊佳穎
• Other Authors: Tzao-Lin Lee
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/41105466613256504998

碩士 === 國立臺灣大學 === 資訊工程學研究所 === 96 === E-mail is an indispensable modern communication of the media. Via e-mail, privacy can be maintain in the circumstances and achieve rapid communication of results. However, it is full of insecurity factors in the Internet world. In order to achieve privacy protection, e-mail content must be encrypted. The present common encryption mechanism is digital signatures and public key encryption. Both in the use of more complex and more difficult for the average Internet users get started. And the major portals are now providing free Web Mail services. But most e-mail delivery is still sent with plain text. In this study, a user-friendly system for the Web Mail is provided. The system includes the steganography concept which converses the Chinese texts in the e-mail into entirely different texts. The receiver can still read the letter by using the decryption functions, so that the emails can be restored to the plain text. Meanwhile, the email is well-protected during the delivery process.