Electronic data protection method and device based on biological characteristic and mobile cryptographic key

Abstract

A electronic data protection method based on biological characteristic and mobile key comprises that user accesses mobile key device to local computer for register, storing mixedly of biological characteristic template ciphertext and secondary key in the device; enciphering or deciphering the access file, accessing the device for detecting communication pipeline safety; analyzing the ciphertext and secondary key, deciphering biological characteristic template using secondary cipher and returning to local computer; inputting user biological characteristic, checking validity of key ownership; if checking is passing, enciphering or deciphering the file using the biological characteristic template cleartext, or operation is forbidden. In the invention, the biological characteristic and secondary key are transferred to mobile device, correlation is introduced to key and owner, key safety is promoted. The local computer has not key and has only ciphered data, even if deciphering guard system obtains enciphered data, it can not decipher the enciphered data for lack of key.

Description

technical field [0001] The invention relates to electronic data protection technology, in particular to an electronic data protection method and device based on biometric features and mobile keys. Background technique [0002] With the development of information technology, the proportion of electronic information is getting higher and higher, and its status is becoming more and more important. With the support of electronic computers, portable digital assistants, multifunctional mobile phones and other carriers, the data volume of electronic materials has grown rapidly. How to protect the security of such a large amount of electronic data has become a prominent issue in the field of electronic information security today. [0003] The traditional electronic data security protection technology adopts the password protection mechanism. The mutual conversion of plaintext data to ciphertext data is completed through the encryption and decryption of data by passwords, so as to ...

AI Technical Summary

Problems solved by technology

[0012] 1. Password protection method: In order to ensure safety performance, complex passwords must be set, which is inconvenient to remember

[0013] 2. Traditional key encryption and decryption protection methods: the encryption and decryption keys are stored in the local computer and are easy to be stolen

[0015] 4. Network-based protection method: heavily dependent on the network, with high additional risks and high maintenance costs

[0016] 5. Protection method based on biometric identification technology: the biometric template data is stored in the local computer, which is easy to steal

[0019] 2. The general protection program adopts a relatively fixed path for key storage, so that it can be called at any time (the key storage method of dynamic path is almost impossible to use, because it will greatly increase the workload of the protection program)

After that, the protection program will become a decryption program, and there will be no protection function

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