摘要： 根据密钥产生和管理过程的复杂性，为增强数字信息安全性，提出一种基于指纹的数字信息加密算法。该算法利用指纹的唯一性和稳定性，将指纹特征矩阵作为密钥。解码时，根据指纹匹配后得到的特征矩阵和密文，对秘密信息进行恢复。实验结果表明，该算法借助指纹识别的安全性增强了密钥安全性，简化了密钥管理，其二值矩阵运算效率很高，便于硬件实现。

关键词: 信息加密, 指纹识别, 指纹特征矩阵

Abstract: According to the complexity of key generation and management process, this paper presents an encryption algorithm based on fingerprint to enhance the security of the digital information. This algorithm utilizes the uniqueness and stability of the fingerprint, and regards the fingerprint characteristic matrix as a key. Secret information is retrieved according to the characteristic matrix and cyptography obtained by fingerprint matching. Experimental results show that the method enhances the security of the key by means of the security of fingerprint identification, and simplifies the key management. Its binary matrix computation is efficient enough to implement on hardware easily.

Key words: information encryption, fingerprint identification, fingerprint feature matrix

中图分类号: 

• TP309.2