CN102857503B - A kind of safe finger print data radio transmitting method - Google Patents
A kind of safe finger print data radio transmitting method Download PDFInfo
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- CN102857503B CN102857503B CN201210317946.1A CN201210317946A CN102857503B CN 102857503 B CN102857503 B CN 102857503B CN 201210317946 A CN201210317946 A CN 201210317946A CN 102857503 B CN102857503 B CN 102857503B
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Abstract
The invention discloses a kind of safe finger print data radio transmitting method, it comprises: set up wireless communication link; Finger print data encrypted transmission, it comprises: utilize common crypto algorithm to be encrypted original fingerprint data bag, obtain ciphertext; XOR computing is carried out to ciphertext; Shift operation is carried out to the ciphertext after XOR computing, obtains encrypting fingerprint data; Recipient's decrypting ciphertext, it comprises: be shifted to encrypting fingerprint data; XOR is carried out to the encrypting fingerprint data after displacement; Utilize general decipherment algorithm to be decrypted, obtain fingerprint data clear text.By bi-directional verification between finger print data wireless transport module of the present invention and server, can effectively prevent finger print data from being stolen by illegal server or finger print data wireless transport module; The ciphertext obtained standard encryption algorithms is shifted, the logical operation such as XOR and address mapping, further increases the difficulty that encryption key cracks, has ensured the fail safe of finger print data wireless transmission.
Description
Technical field
The present invention relates to a kind of safe finger print data radio transmitting method.
Background technology
Along with the develop rapidly of social science and technology, the application of fingerprint identification technology is more and more extensive, and particularly some authentication fields, the research and development of fingerprint recognition Related product have important strategic importance and wide market prospects.
Usual fingerprint recognition system comprises fingerprint sensor and processor, fingerprint sensor itself does not have the function of fingerprint recognition and process, it is only responsible for gathering finger print information, and finger print information is transferred to treatment system carries out calculating, identify and the process such as coupling, finally obtain finger print data after treatment system process.Along with the development of wireless communication technology, the wireless transmission method of data replaces traditional wire transmission mode gradually, but wireless transmission comparatively wire transmission is more easily ravesdropping, cracks, data security is subject to larger threat, therefore, be necessary to be encrypted the data of transmission, existing enciphering and deciphering algorithm, as DES algorithm, 3DES algorithm, RC2, RC4 algorithm, aes algorithm and BLOWFISH algorithm etc., can not meet the fail safe of finger print data transmission completely.Once user fingerprints data are by intercept, steal people and pretend to be user with it, the associative operation carried out directly may endanger the interests of user, or causes huge property loss, or is pretended to be and make criminal offence, and consequence is hardly imaginable.
Summary of the invention
The object of the invention is to solve the deficiencies in the prior art, a kind of safe finger print data radio transmitting method is provided, first the method is verified the authenticity of finger print data wireless transport module and server and is set up safe and reliable data transmission link, data transmission procedure not only adopts common crypto algorithm to be encrypted data, but also to be shifted to ciphertext, logical operation and the process such as XOR and address mapping, more effectively ensure the fail safe of finger print data wireless transmission.
The object of the invention is to be achieved through the following technical solutions: a kind of safe finger print data radio transmitting method, it comprises the following steps:
S1: set up the wireless communication link between finger print data wireless transport module and server, it comprises the following steps:
S101: finger print data wireless transport module sends request the packet setting up wireless communication link to server, comprises 16 byte sequence number of stochastic generation in packet;
S102: server receives packet, according to predefined algorithm, produces 8 byte key by 16 byte sequence number received, and adds that 8 byte random numbers form 16 new byte sequence number;
S103: 16 new byte sequence number are beamed back finger print data wireless transport module by server;
S104: after finger print data wireless transport module receives 16 new byte sequence number, the key calculated with its decipherment algorithm and 8 byte key returned are compared and are verified;
S105: as unanimously then passed through checking through comparison, finger print data wireless transport module confirmed service device is safe server, and the 16 new byte sequence number received are encrypted as 8 new byte key and feed back to server;
S106: the key that server calculates by 16 byte sequence number and the 8 new byte key that finger print data wireless transport module feeds back are compared and verified;
S107: as unanimously then passed through checking through comparison, server confirms that finger print data wireless transport module is safe, between finger print data wireless transport module and server, set up wireless communication link;
S2: finger print data encrypted transmission, it comprises the following steps:
S201: utilize common crypto algorithm to be encrypted original fingerprint data bag, obtain ciphertext;
S202: XOR computing is carried out to ciphertext;
S203: carry out shift operation to the ciphertext after XOR, obtains encrypting fingerprint data, and is sent to recipient;
S3: recipient's decrypting ciphertext, it comprises the following steps:
S301: encrypting fingerprint data are shifted;
S302: XOR computing is carried out to the encrypting fingerprint data after displacement;
S303: utilize general decipherment algorithm to be decrypted, obtain fingerprint data clear text.
Common crypto algorithm of the present invention comprises DES algorithm, 3DES algorithm, RC2, RC4 algorithm, aes algorithm or BLOWFISH algorithm.
The invention has the beneficial effects as follows:
(1) pass through bi-directional verification between finger print data wireless transport module and server, effectively can prevent finger print data from being stolen by illegal server or finger print data wireless transport module, improve the fail safe of finger print data wireless transmission;
(2) on the basis of existing general standard encryption algorithms, the ciphertext obtained standard encryption algorithms is shifted, the logical operation such as XOR and address mapping, further increase the difficulty that encryption key cracks, ensure the fail safe of finger print data wireless transmission.
Accompanying drawing explanation
Fig. 1 is radio transmitting method flow chart of the present invention;
Fig. 2 is the flow chart that the present invention sets up wireless communication link;
Fig. 3 is the flow chart of finger print data encrypted transmission of the present invention;
Fig. 4 is the flow chart of recipient's decrypting ciphertext of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, a safe finger print data radio transmitting method, it comprises one, and to set up the step of the wireless communication link between finger print data wireless transport module and server, the step of a finger print data encrypted transmission and a decrypt ciphertext be the step of fingerprint data clear text.
As shown in Figure 2, set up the wireless communication link between finger print data wireless transport module and server, it comprises the following steps:
S101: finger print data wireless transport module sends request the packet setting up wireless communication link to server, comprises 16 byte sequence number of stochastic generation in packet;
S102: server receives packet, according to predefined algorithm, produces 8 byte key by 16 byte sequence number received, and adds that 8 byte random numbers form 16 new byte sequence number;
S103: 16 new byte sequence number are beamed back finger print data wireless transport module by server;
S104: after finger print data wireless transport module receives 16 new byte sequence number, the key calculated with its decipherment algorithm and 8 byte key returned are compared and are verified;
S105: as unanimously then passed through checking through comparison, finger print data wireless transport module confirmed service device is safe server, and the 16 new byte sequence number received are encrypted as 8 new byte key and feed back to server;
S106: the key that server calculates by 16 byte sequence number and the 8 new byte key that finger print data wireless transport module feeds back are compared and verified;
S107: as unanimously then passed through checking through comparison, server confirms that finger print data wireless transport module is safe, between finger print data wireless transport module and server, set up wireless communication link.
As shown in Figure 3, finger print data encrypted transmission, in host-host protocol, the data message of transmission comprises packet header (5 byte), packet length (2 byte), command type (3 byte), packet (0 ... n byte) and crc16 check code (2 byte), it comprises the following steps:
S201: utilize des encryption algorithm to be encrypted original fingerprint data bag, obtain ciphertext;
S202: XOR computing is carried out to ciphertext;
S203: carry out shift operation to the ciphertext after XOR computing, obtains encrypting fingerprint data, and is sent to recipient.
As shown in Figure 4, recipient's decrypting ciphertext, it comprises the following steps:
S301: encrypting fingerprint data are shifted;
S302: XOR computing is carried out to the encrypting fingerprint data after displacement;
S303: utilize DES decipherment algorithm to be decrypted, obtain fingerprint data clear text.
Claims (2)
1. a finger print data radio transmitting method for safety, is characterized in that: it comprises the following steps:
S1: set up the wireless communication link between finger print data wireless transport module and server, it comprises the following steps:
S101: finger print data wireless transport module sends request the packet setting up wireless communication link to server, comprises 16 byte sequence number of stochastic generation in packet;
S102: server receives packet, according to predefined algorithm, produces 8 byte key by 16 byte sequence number received, and adds that 8 byte random numbers form 16 new byte sequence number;
S103: 8 byte key that server is produced and 16 new byte sequence number beam back finger print data wireless transport module;
S104: after finger print data wireless transport module receives 16 new byte sequence number, be decrypted the 16 new byte sequence number that finger print data wireless transport module receives with its decipherment algorithm, 8 byte key that the key calculate deciphering and server return are compared and are verified;
S105: as unanimously then passed through checking through comparison, finger print data wireless transport module confirmed service device is safe server, and the 16 new byte sequence number received are encrypted as 8 new byte key and feed back to server;
S106: server is decrypted to the 16 new byte sequence number that step S102 produces 8 new byte key that the key that calculates and finger print data wireless transport module feed back with it and compares and verify;
S107: as unanimously then passed through checking through comparison, server confirms that finger print data wireless transport module is safe, between finger print data wireless transport module and server, set up wireless communication link;
S2: finger print data encrypted transmission, it comprises the following steps:
S201: utilize common crypto algorithm to be encrypted original fingerprint data bag, obtain ciphertext;
S202: XOR computing is carried out to ciphertext;
S203: carry out shift operation to the ciphertext after XOR computing, obtains encrypting fingerprint Data Concurrent and delivers to recipient;
S3: recipient's decrypting ciphertext, it comprises the following steps:
S301: encrypting fingerprint data are shifted;
S302: XOR computing is carried out to the encrypting fingerprint data after displacement;
S303: utilize general decipherment algorithm to be decrypted, obtain fingerprint data clear text.
2. a kind of safe finger print data radio transmitting method according to claim 1, is characterized in that: described common crypto algorithm comprises DES algorithm, 3DES algorithm, RC2, RC4 algorithm, aes algorithm or BLOWFISH algorithm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210317946.1A CN102857503B (en) | 2012-08-31 | 2012-08-31 | A kind of safe finger print data radio transmitting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210317946.1A CN102857503B (en) | 2012-08-31 | 2012-08-31 | A kind of safe finger print data radio transmitting method |
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| CN102857503A CN102857503A (en) | 2013-01-02 |
| CN102857503B true CN102857503B (en) | 2016-01-20 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103237030A (en) * | 2013-04-25 | 2013-08-07 | 深圳市中兴移动通信有限公司 | Biological recognition-based user authentication method and system |
| CN103618611A (en) * | 2013-12-04 | 2014-03-05 | 天津大学 | Identity verification method based on challenge responses and fingerprint identification |
| CN108011695A (en) * | 2016-10-28 | 2018-05-08 | 财团法人工业技术研究院 | Wireless Communication Method, Device And System |
| CN106686586B (en) * | 2016-12-29 | 2020-08-11 | 北京泛安信息技术有限公司 | Wireless transmission system and encryption and decryption method thereof |
| TWI666569B (en) * | 2017-04-19 | 2019-07-21 | 映智科技股份有限公司 | Bridge chip and fingerprint encryption method applied between fingerprint sensor and main control terminal, fingerprint detection and encryption circuit and method |
| CN106934315B (en) * | 2017-05-05 | 2023-06-02 | 成都因纳伟盛科技股份有限公司 | APP and card reading board encryption system based on handheld resident identification card reader |
| CN110008654B (en) * | 2018-01-04 | 2021-04-09 | 北大方正集团有限公司 | Electronic file processing method and device |
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| CN1823356A (en) * | 2003-07-14 | 2006-08-23 | 索尼株式会社 | Encryption/decryption device and method |
| CN1841993A (en) * | 2005-03-31 | 2006-10-04 | 芯微技术（深圳）有限公司 | Method and fingerprint sensor for real-time encryption of fingerprint data |
| CN102333093A (en) * | 2011-09-28 | 2012-01-25 | 深圳市赛格导航科技股份有限公司 | Data encryption transmission method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7581100B2 (en) * | 2003-09-02 | 2009-08-25 | Authernative, Inc. | Key generation method for communication session encryption and authentication system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1823356A (en) * | 2003-07-14 | 2006-08-23 | 索尼株式会社 | Encryption/decryption device and method |
| CN1841993A (en) * | 2005-03-31 | 2006-10-04 | 芯微技术（深圳）有限公司 | Method and fingerprint sensor for real-time encryption of fingerprint data |
| CN102333093A (en) * | 2011-09-28 | 2012-01-25 | 深圳市赛格导航科技股份有限公司 | Data encryption transmission method and system |
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