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中文摘要：
基于F-Tablet手写平台提出动态手写签名密钥生成方案，采用傅里叶变换提取特征，使用多态离散化算法生成稳定密钥，实现从动态手写签名到加密密钥的安全转换，并通过实验分析密钥生成方案的认证性能和安全性能。生成的密钥破译困难，随身携带，不会丢失被盗，不会增加用户的记忆负担，可用于身份认证、文件加密以及数字版权管理等领域。
英文摘要：
In this paper, key generation algorithm was put forward to safely transform dynamic handwritten signature to biometric key based on F-Tablet, which used Fourier transform to extract feature and multi-state discretization algorithm to generate stable key. The authentication performance and security performance were analyzed through experiment. The key is hard to decrypt and easy to carry, can＇t be stolen and won＇t burden users with memory. And the key could be applied in identity authentication, file encryption and digital rights management and so on.
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