This model mainly solve Authentication, Nonrepudiation, Privacy and Integrity existed in the current mail system.
该模型主要解决了邮件系统中存在的身份鉴别、防止抵赖、保密性、完整性等安全问题。
Former mainly completes the writing and draws a portrait design extension India, latter favors to carries on the integrity in the entire product surface transfers India.
前者主要完成文字和写真图案的转印，后者则倾向于在整个产品表面进行完整转印。
Storage model is mainly to resolve the conflicts between data integrity and storage space.
存储模型主要是解决数据的完整性和存储空间的矛盾。
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