数字签名在OpenType字库中的分析研究

介绍了数字签名的方法和过程，分析了OpenType矢量字库的表结构和与数字签名相关的表的内容。结合数字证书技术，应用于OpenType矢量字库上，将数字签名嵌人字库表中。给出了基于Windows平台的字库数字签名的具体实现步骤和结果的验证过程，完成数字签名的计算和写入。将此技术应用于字库生产过程中，实现了字库的完整性、安全性、真实性和可信性，收到了良好的效果。

Analysis and Research of Digital Signature in OpenType Font

The theory and process of digital signature is introduced in this paper and both the structures and contents of the font tables relevant to it are analyzed.Combined with the digital certificate technique,the digital signature is implemented in the OpenType vector font by inserted in font tables.The concrete approach to the calculation of digital signature and the validation process of result is put forward based on the Windows platform.Applied to font production,digital signature technique accomplishes the integrality,security,authenticity and creditability of font and achieves good effect.