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Biological feature password authentication method and device

A biometric and password authentication technology, applied in the field of information security, can solve the problem of biometrics being easily stolen, and achieve the effect of ensuring independence and security

Inactive Publication Date: 2017-05-31
SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the biometric features are easy to be stolen in the above-mentioned prior art, the object of the present invention is to provide a biometric password authentication method and device

Method used

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  • Biological feature password authentication method and device
  • Biological feature password authentication method and device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0044] Such as figure 1 and figure 2 As shown, a biometric password authentication method provided in this embodiment includes a biometric initial feature entry step and a biometric authentication step. Extract the initial biometric feature BC0 from the biological information; at the same time, obtain the random number R0 through the noise source, and use the random number R0 to generate the protection key key p 0, store random number R0, the random number R0 is the component of the biometric template, and obtaining the random number R0 through the noise source can guarantee the randomness and uniqueness of the random number R0; then, use the protection key key p 0 pair (R0|BC0) is encrypted, and the encrypted ciphertext E(R0|BC0) is used as the biometric template BCM to store the biometric template BCM. The encryption algorithm can be a symmetric encryption algorithm, and E(R0|BC0) identifies the encrypted The ciphertext; the index index0 is generated through the initial b...

Embodiment 2

[0050] Such as figure 1 and figure 2 As shown, this embodiment provides a biometric password authentication device, specifically, a cryptographic machine, which includes a biometric feature input module and a cryptographic operation module. The biometric feature entry module is used to collect biometric information and extract biometric features BC. The biometric feature entry module can be externally connected to the cipher machine or embedded in the cipher machine. User registration and identity verification must go through the biometric feature entry module, and the user When registering, the user's initial biological characteristics must be entered and the initial biological characteristics steps are performed; the cryptographic operation module is used to encrypt the biological characteristics, encrypt the data and store indexes, random numbers and biological characteristic templates. The biometric password authentication device may also include a storage module for sto...

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Abstract

The invention provides a biological feature password authentication method, which comprises the following steps of a biological initial feature input step: collecting and extracting the initial biological features BC0; obtaining a random number R0; generating a protection key key0 by using the random number R0; using the protection key key0 for performing encryption E (R0|BC0) on the protection key pair key0 (R0|BC0); using a ciphertext formed by the encryption as a biological feature template BCM; generating an index index0 through the initial biological features BC0; a biological feature authentication step: collecting and extracting the biological feature BC1; generating an index index1 through the initial biological feature BC1; reading the corresponding random number R1 and the biological feature template BCM1 according to the index1; generating a protection key key1 by using the random number R1; using the key1 for performing encryption E (R1|BC1) on (R1|BC1) to obtain a biological feature template BCM'; comparing the biological feature template BCM' with the stored biological feature template BCM; judging whether the biological feature template BCM' is matched with the stored biological feature template BCM or not. The biological feature password authentication method provided by the invention has the following advantages that the random number and the biological feature are combined with the encryption to generate the biological feature template; the linkage incapability of the biological features and the biological feature template is ensured.

Description

technical field [0001] The invention relates to the field of information security, in particular to a biometric password authentication method and device. Background technique [0002] Cipher machines have been widely used in important fields such as finance, military, and government affairs. Cipher machines provide encryption and decryption services for transmitted data to ensure data security. At present, cipher machines have widely used biometric information for identity authentication. [0003] Biological features have been widely studied and used because of their inherent uniqueness, stability, accuracy and ease of use. However, once the biometrics are successfully stolen or attacked, the biometrics will be permanently unavailable, and human biometrics are very limited, unlike traditional identity authentication media such as passwords and ICs, which can be revoked or modified at will. [0004] Therefore, in order to ensure the safe use of the cipher machine, the secu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L9/08
CPCH04L9/3231H04L9/0866H04L9/0869
Inventor 刘强李婷朱书杉
Owner SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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