CN100520671C - Finger print encryption and decryption method of electron decument - Google Patents
Finger print encryption and decryption method of electron decument Download PDFInfo
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- CN100520671C CN100520671C CNB2005100362592A CN200510036259A CN100520671C CN 100520671 C CN100520671 C CN 100520671C CN B2005100362592 A CNB2005100362592 A CN B2005100362592A CN 200510036259 A CN200510036259 A CN 200510036259A CN 100520671 C CN100520671 C CN 100520671C
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Abstract
The present invention relates to a fingerprint enciphering and deciphering method of electronic document. It can make electronic document obtain high-intensity safety protection. Said fingerprint enciphering method includes the following steps: using enciphering algorithm to produce key and store said key in key pool, inputting fingerprint, extracting characteristic value of fingerprint, comparing the inputted fingerprint with pre-registered fingerprint, judging characteristic value of fingerprint, taking out enciphered key and utilizing enciphering algorithm to enciphere file so as to implement fingerprint enciphering step of electronic document. Said invention also provides the correspondent fingerprint deciphering method.
Description
Technical field
The present invention relates to a kind of encrypting fingerprint and decryption method, relate in particular to the encrypting fingerprint and the decryption method of the electronic document in a kind of computing machine.
Background technology
Traditional method that electronic document is encrypted and deciphered generally includes encryption of utilization keyboard password and deciphering and uses software protective lock to encrypt and decipher this two kinds of methods.The utilization keyboard password is encrypted and the shortcoming of the method for deciphering electric document file is that keyboard password is stolen by others easily, or causes because of forgetting Password sometimes visiting electronic document, so this type of encryption and decryption method are dangerous and dumb; The method of using software protective lock to carry out encrypt and decrypt mainly comprises the following steps: to read the EEPROM of software protective lock; write the EEPROM of software protective lock; do a conversion then; import a number; look at whether the result who changes out is expected result; but conversion regime is irreversible; promptly the number that is come by conversion is to can not get original number; judge normally whether data that obtain meet our requirement; if meet; then continue to carry out; if do not meet then leave end; therefore deciphering person is easier to find this section program, avoids this section then and can reach the purpose that cracks to the part of software protection latching operation.In sum, the encryption of traditional electronic document and decryption method all can not make electronic document obtain high-intensity safeguard protection.
In addition, at present fingerprint is used for encrypting and is widely used, and for example the patent No. is 00129999.9, discloses a kind of fingerprint computer in the patent documentation of 2001.07.25 in open day, and it mainly is the fingerprint authentication when being used to start shooting.
Summary of the invention
Technical matters to be solved by this invention is to provide the encrypting fingerprint and the decryption method of the electronic document in a kind of computing machine, and it can make electronic document obtain high-intensity safeguard protection.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: the encrypting fingerprint method of the electronic document in a kind of computing machine is provided, and it comprises the steps:
Step 201, computing machine produces key and is stored in pool of keys by cryptographic algorithm;
Step 202, computer prompted input fingerprint;
Step 203 is by fingerprint acquisition device input fingerprint;
Step 204, computing machine is by the fingerprint algorithm eigenwert that takes the fingerprint;
Step 205, computing machine obtain the fingerprint of registered in advance and compare with the fingerprint of input now from former storage medium;
Step 206 judges whether fingerprint characteristic value mates, if coupling, then execution in step 207, if do not match, then returns step 202;
Step 207 is taken out encryption key from pool of keys;
Step 208 is called cryptographic algorithm file is encrypted, thereby finishes the encrypting fingerprint step of electronic document.
For solving the problems of the technologies described above, another technical scheme of the present invention is: the fingerprint decryption method of the electronic document in a kind of computing machine is provided, and it comprises the steps:
The invention has the beneficial effects as follows: because the electronic document in the computing machine of the present invention adopts fingerprint to encrypt and decipher, so it can make electronic document obtain high-intensity safeguard protection.
Description of drawings
Fig. 1 is the process flow diagram of the fingerprint register process of the electronic document in the computing machine of the present invention.
Fig. 2 is the process flow diagram of the encrypting fingerprint method of the electronic document in the computing machine of the present invention.
Fig. 3 is the process flow diagram of the fingerprint decryption method of the electronic document in the computing machine of the present invention.
Embodiment
Computing machine of the present invention is the computing machine with fingerprint recognition, and it comprises computer body, and is embedded or be circumscribed with fingerprint acquisition device on computer body.Computing machine of the present invention is equipped with identification of fingerprint software.
The present invention is before the encrypting fingerprint and deciphering of electronic document, and computing machine at first will be registered the fingerprint of granted access electronic document, sees also Fig. 1, and the fingerprint register process of the electronic document in the computing machine of the present invention comprises the steps:
Step 101, computer system prompting user carries out fingerprint register;
Step 102 is by fingerprint acquisition device input fingerprint;
Step 103, computer system is by the fingerprint algorithm eigenwert that takes the fingerprint;
Step 104, computer system stores fingerprint characteristic value on the storage medium into, is provided with back comparison usefulness, thereby finishes the step of fingerprint register.
See also Fig. 2, the encrypting fingerprint method of the electronic document in the computing machine of the present invention comprises the steps:
Step 201, computer system produce key by cryptographic algorithm and are stored in pool of keys (pool of keys is on the storage medium of computing machine, also can be extraneous storage medium);
Step 202, computer system prompting input fingerprint;
Step 203 is by fingerprint acquisition device input fingerprint;
Step 204, computer system is by the fingerprint algorithm eigenwert that takes the fingerprint;
Step 205, computing machine obtain the fingerprint of registered in advance and compare with the fingerprint of input now from former storage medium;
Step 206 judges whether fingerprint characteristic value mates, if coupling, then execution in step 207, if do not match, then returns step 202;
Step 207 is taken out encryption key from pool of keys;
Step 208 is called cryptographic algorithm file is encrypted, thereby finishes the encrypting fingerprint step of electronic document.
See also Fig. 3, the fingerprint decryption method of the electronic document in the computing machine of the present invention comprises the steps:
Claims (7)
1. the encrypting fingerprint method of the electronic document in the computing machine is characterized in that comprising the steps:
Step 201, computing machine produces key and is stored in pool of keys by cryptographic algorithm;
Step 202, computer prompted input fingerprint;
Step 203 is by fingerprint acquisition device input fingerprint;
Step 204, computing machine is by the fingerprint algorithm eigenwert that takes the fingerprint;
Step 205, computing machine obtain the fingerprint of registered in advance and compare with the fingerprint of input now from former storage medium;
Step 206 judges whether fingerprint characteristic value mates, if coupling, then execution in step 207, if do not match, then returns step 202;
Step 207 is taken out encryption key from pool of keys;
Step 208 is called cryptographic algorithm file is encrypted, thereby finishes the encrypting fingerprint step of electronic document.
2. the encrypting fingerprint method of the electronic document in the computing machine as claimed in claim 1, it is characterized in that: before the encrypting fingerprint process of electronic document, at first will register the fingerprint of granted access electronic document, the fingerprint register process of this electronic document comprises the steps:
Step 101, the computer prompted user carries out fingerprint register;
Step 102 is by fingerprint acquisition device input fingerprint;
Step 103, computing machine is by the fingerprint algorithm eigenwert that takes the fingerprint;
Step 104, computing machine stores fingerprint characteristic value on the storage medium into, is provided with back comparison usefulness, thereby finishes the step of fingerprint register.
3. the encrypting fingerprint method of the electronic document in the computing machine as claimed in claim 1 is characterized in that: this pool of keys is on the storage medium of computing machine, or on the storage medium in the external world.
4. the encrypting fingerprint method of the electronic document in the computing machine as claimed in claim 1, it is characterized in that: this computing machine is the computing machine with fingerprint recognition, it comprises computer body, embedded or be circumscribed with fingerprint acquisition device on computer body, this computing machine also is equipped with identification of fingerprint software.
5. the fingerprint decryption method of the electronic document in the computing machine is characterized in that comprising the steps:
Step 301, computer prompted input fingerprint;
Step 302 is by fingerprint acquisition device input fingerprint;
Step 303, computing machine is by the fingerprint algorithm eigenwert that takes the fingerprint;
Step 304, computing machine obtain the fingerprint of registration in advance and compare with the fingerprint of input now from former storage medium;
Step 305 judges whether fingerprint characteristic value mates, if coupling, then execution in step 306, if do not match, then returns step 301;
Step 306 is taken out decruption key from pool of keys, store the key that computing machine produces by cryptographic algorithm in this pool of keys;
Step 307 is called decipherment algorithm file is decrypted, thereby finishes the fingerprint decryption step of electronic document.
6. the fingerprint decryption method of the electronic document in the computing machine as claimed in claim 5 is characterized in that: this pool of keys is on the storage medium of computing machine, or on the storage medium in the external world.
7. the fingerprint decryption method of the electronic document in the computing machine as claimed in claim 5, it is characterized in that: this computing machine is the computing machine with fingerprint recognition, it comprises computer body, embedded or be circumscribed with fingerprint acquisition device on computer body, this computing machine also is equipped with identification of fingerprint software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100362592A CN100520671C (en) | 2005-07-27 | 2005-07-27 | Finger print encryption and decryption method of electron decument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100362592A CN100520671C (en) | 2005-07-27 | 2005-07-27 | Finger print encryption and decryption method of electron decument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1719373A CN1719373A (en) | 2006-01-11 |
| CN100520671C true CN100520671C (en) | 2009-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100362592A Active CN100520671C (en) | 2005-07-27 | 2005-07-27 | Finger print encryption and decryption method of electron decument |
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| CN (1) | CN100520671C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109359474A (en) * | 2018-10-08 | 2019-02-19 | 北京点聚信息技术有限公司 | A method of it being incorporated into fingerprint in a document and is encrypted |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345619B (en) * | 2008-08-01 | 2011-01-26 | 清华大学深圳研究生院 | Electronic data protection method and device based on biological characteristic and mobile cryptographic key |
| CN102467641A (en) * | 2010-11-11 | 2012-05-23 | 英业达股份有限公司 | File management method and system |
| CN102185694A (en) * | 2010-12-21 | 2011-09-14 | 常熟理工学院 | Electronic file encrypting method and system based on fingerprint information |
| CN102509035A (en) * | 2011-09-27 | 2012-06-20 | 广东新美锐科技有限公司 | Data protection method based on sliding type true skin living fingerprint identification technology |
| CN103138927B (en) * | 2011-12-01 | 2015-12-16 | 航天信息股份有限公司 | A kind of for key controlling method in the encrypted memory device of finger print identifying |
| CN103166924B (en) * | 2011-12-14 | 2017-11-03 | 中国银联股份有限公司 | The security information interaction system and method for feature based Parameter analysis |
| CN103186761B (en) * | 2011-12-28 | 2017-06-20 | 宇龙计算机通信科技(深圳)有限公司 | The fingerprint encryption method and its communication terminal of secret file |
| CN105760764B (en) * | 2014-12-18 | 2020-03-17 | 中兴通讯股份有限公司 | Encryption and decryption method and device for embedded storage device file and terminal |
| CN106156701A (en) * | 2015-03-31 | 2016-11-23 | 深圳指芯智能科技有限公司 | A kind of fingerprint identification device, fingerprint identification device identification system and recognition methods |
| WO2017120937A1 (en) * | 2016-01-15 | 2017-07-20 | 张添章 | Method for encrypting and decrypting file and smart terminal device |
| CN107015766A (en) * | 2017-04-01 | 2017-08-04 | 重庆电子工程职业学院 | A kind of computer data separates storage switching system |
| CN108492223A (en) * | 2018-02-26 | 2018-09-04 | 浙江创课教育科技有限公司 | paper processing method and system |
-
2005
- 2005-07-27 CN CNB2005100362592A patent/CN100520671C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109359474A (en) * | 2018-10-08 | 2019-02-19 | 北京点聚信息技术有限公司 | A method of it being incorporated into fingerprint in a document and is encrypted |
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| Publication number | Publication date |
|---|---|
| CN1719373A (en) | 2006-01-11 |
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Address after: 518000, room 101, Room 102, liming cyber building, South Zone, Nanshan District hi tech Development Zone, Guangdong, Shenzhen Patentee after: Shenzhen yaliote Technology Co.,Ltd. Address before: 518000, room 101, Room 102, liming cyber building, South Zone, Nanshan District hi tech Development Zone, Guangdong, Shenzhen Patentee before: SHENZHEN ARATEK BIOMETRICS TECHNOLOGY Co.,Ltd. |
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