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A Palmprint Cryptosystem

机译:掌纹密码系统

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摘要

Traditional cryptosystems are based on passwords, which can be cracked (simple ones) or forgotten (complex ones). This paper, proposes a novel cryptosystem based on palmprints. This system directly uses the palmprint as a key to encrypt/decrypt information. The information of a palmprint is so complex that it is very difficult, if not impossible, to crack the system while it need not remember anything to use the system. In the encrypting phase, a 1024 bits binary string is extracted from the palmprints using differential operations. Then the string is translated to a 128 bits encrypting key using a Hash function, and at the same time, an error-correct-code (ECC) is generated. Some general encryption algorithms use the 128 bits encrypting key to encrypt the secret information. In decrypting phase, the 1024 bits binary string extracted from the input palmprint is first corrected using the ECC. Then the corrected string is translated to a decrypting key using the same Hash function. Finally, the corresponding general decryption algorithms use decrypting key to decrypt the information. The experimental results show that the accuracy and security of this system can meet the requirement of most applications.
机译:传统的密码系统基于密码,可以破解(简单密码)或忘记密码(复杂密码)。本文提出了一种基于掌纹的新型密码系统。该系统直接使用掌纹作为密钥来加密/解密信息。手掌的信息非常复杂,以至于即使不是不可能,也很难破解系统,而无需记住任何使用系统的信息。在加密阶段,使用差分操作从掌纹中提取1024位二进制字符串。然后,使用哈希函数将字符串转换为128位加密密钥,并同时生成一个纠错码(ECC)。一些通用的加密算法使用128位加密密钥对机密信息进行加密。在解密阶段,首先使用ECC校正从输入掌纹中提取的1024位二进制字符串。然后,使用相同的哈希函数将校正后的字符串转换为解密密钥。最后,相应的通用解密算法使用解密密钥对信息进行解密。实验结果表明,该系统的准确性和安全性可以满足大多数应用的要求。

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