CAJ | 학술논문

鉴于目前协议中存在的身份认证、版权追踪、买卖方工作量过大等问题，提出了一个基于身份认证的数字水印协议。在协议中引入了可信第三方，减少了买卖方的工作量；由第三方进行水印加载和数字作品的分发，有效防止了水印信息的滥用。同时，在水印中加入身份认证信息，并将各实体信息及时间戳放入一个安全的数据库中以便查询，在版权追踪时能更高效、准确地确认版权所有者。
감우목전협의중존재적신빈인증、판권추종、매매방공작량과대등문제，제출료일개기우신빈인증적수자수인협의。재협의중인입료가신제삼방，감소료매매방적공작량；유제삼방진행수인가재화수자작품적분발，유효방지료수인신식적람용。동시，재수인중가입신빈인증신식，병장각실체신식급시간착방입일개안전적수거고중이편사순，재판권추종시능경고효、준학지학인판권소유자。
In light of the problems existing in current protocols, such as identity authentication, copyright tracking, excessive workload of buyer and seller, a digital watermarking protocol based on identity authen-tication is proposed in which a trusted third-party is introduced to decrease the workload of buyer and sell-er. Watermark embedding and digital products distribution by the third party could effectively prevent the a-buse of watermarking information. Meanwhile, the adding of identity authentication information to the wa-termark, and furthermore, the storing of entity information and a timestamp in the secure database for later query could provide more efficient and accurate determination of copyright owner in copyright tracking.