The Study and Realization of Security Interface in UOF

UOF(Unified Office document Format) is the Chinese national standard for office document format and the advantage of the UOF is analyzed in this paper. The security of the UOF document is discussed in three aspects: Encryption, Signature and Authority. Based on the three aspects the security interfaces are designed and implemented using C and C# languages. The interfaces can be divided into two parts, one is the bottom interfaces and the other is the advance interfaces, which can give more convenience to the users. In the end of the paper a demonstration system of UOF safe document is given to prove the work of the security interface.