CN104298899A - Method for manually signing electronic data based on file summary information - Google Patents
Method for manually signing electronic data based on file summary information Download PDFInfo
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- CN104298899A CN104298899A CN201410433664.7A CN201410433664A CN104298899A CN 104298899 A CN104298899 A CN 104298899A CN 201410433664 A CN201410433664 A CN 201410433664A CN 104298899 A CN104298899 A CN 104298899A
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- electronic data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/11—File system administration, e.g. details of archiving or snapshots
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- Theoretical Computer Science (AREA)
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- Computer Security & Cryptography (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Bioethics (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
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Abstract
The invention discloses a method for manually signing electronic data based on file summary information. The method includes the following steps that (a) the electronic data are stored in a storage medium; (b) a file name, a route, the size and time information of the electronic data are acquired through a computer and two or more Hash values of the electronic data are calculated; the file summary information of the electronic data is formed by the file name, the route, the size, the time information and the two or more Hash values of the electronic data jointly; the file summary information of the electronic data is stored in a file summary information file; (c) the file summary information file, acquired in the step (b), of the electronic data is printed and signed manually, and therefore the file summary information in the manually-signed file summary information file corresponds to the electronic data one to one. According to the method, a one-to-one corresponding signing relationship can be established between the abstract electronic data and a traditional handwritten signature.
Description
Technical field
The present invention relates to one to be signed to electronic data by handwritten signature, want to ensure to sign and strict corresponding relation between signed data simultaneously, make the method for based on document information, electronic data being carried out to handwritten signature that signer can not deny the responsibilities and obligations that signed data have.
Background technology
In each fields such as production, life, scientific researches, more and more information system that adopts carrys out acquisition and processing data, has approved adopt electronic signature to sign electronic data in a lot of country.But in a lot of situation, the infosystem adopted does not provide the function of electronic signature, or the electronic signature adopted can not the requirement of satisfy regulatory, and can not be considered to have legal effect.Therefore have to electronic data be printed to paper or other media, then sign.
Although adopt electronic signature signature electronic data to get the nod in a lot of country, prerequisite is that adopted system must support electronic signature, and meets the regulatory requirements of relevant laws and regulations to electronic signature.When electronic data cannot obtain effective electronic signature, if requirement must be signed to data (such as raw data filing etc.), so compare stubborn problem to the signature of electronic data, and data-printing is carried out signing to media such as papers waste a large amount of manpower, material resources and financial resources undoubtedly, and the problem of essence can not be solved, such as, some electronic data all cannot show by printing;
The regulation of some country current or management expectancy, must sign to electronic data (such as, but not limited to: with the GLP(Good Laboratory Practice of safety evaluation mechanism before clinical drug), GMP GMP(Good Manufacturing Practice), the GCP(Good Clinical Practice of GCP) etc.); And require when adopting electronic signature to sign electronic data, adopt again handwritten signature to sign electronic data, consistance between the two can be guaranteed simultaneously, also do not have a kind of method to meet above-mentioned requirements at present; We be have developed and a kind of to be signed to electronic data by handwritten signature for this reason, want to ensure to sign and strict corresponding relation between signed data simultaneously, make the method for based on document information, electronic data being carried out to handwritten signature that signer can not deny the responsibilities and obligations that signed data have.
Summary of the invention
The technical matters that the present invention mainly solves is to provide one and is signed to electronic data by handwritten signature, want to ensure to sign and strict corresponding relation between signed data simultaneously, make the method for based on document information, electronic data being carried out to handwritten signature that signer can not deny the responsibilities and obligations that signed data have.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the method for based on document information, electronic data being carried out to handwritten signature, comprises following steps:
A), by electronic data storage in storage medium;
B), utilize computing machine to obtain the file name of electronic data, path, size, temporal information, and calculate two or more cryptographic hash of electronic data; Two or more cryptographic hash of the file name of described electronic data, path, size, temporal information and electronic data, are the document information of this electronic data; And the document information of this electronic data is saved as document message file;
C), print b) the document message file of electronic data obtained, and handwritten signature, the one_to_one corresponding of the document information in the document message file of handwritten signature and corresponding electronic data can be realized.
Preferably, described method of based on document information, electronic data being carried out to handwritten signature, also comprises: d), by the document message file of the electronic data of b) middle acquisition preserve in a database; When whether the original handwritten signature of the document message file of electronic data described in Late Stage Verification remains valid, available computers recalculates the document information of this electronic data, and carry out automatic comparison with the document information in the corresponding document message file stored in database, carry out electronic data described in self-verifying and whether change.
Preferably, b), computing machine obtains electronic data two cryptographic hash by hash function MD5 and SHA1: MD5 value and SHA1 value.
Preferably, b), computing machine obtains electronic data three cryptographic hash by hash function MD5, SHA1 and SHA256: MD5 value, SHA1 value and SHA256 value.
The invention has the beneficial effects as follows: the present invention can set up and sign relation one to one between abstract electronic data and traditional handwriting are signed; Electronic data this electronic data in transmission, filing and data batchmove (such as CD is regularly carved again, storage medium conversion) process without electronic signature can be checked out accurately whether to revise simultaneously; Moreover reliability of the present invention and credibility high, acceptance and the degree of recognition of regulator and administrative authority are high.
Embodiment
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Embodiment one
Method of based on document information, electronic data being carried out to handwritten signature of the present invention, comprises following steps:
A), by electronic data storage in storage medium;
B), utilize computing machine to obtain the file name of electronic data, path, size, temporal information, and calculate two cryptographic hash of electronic data: MD5 value and SHA1 value; Two cryptographic hash of the file name of described electronic data, path, size, temporal information and electronic data, are the document information of this electronic data; And the document information of this electronic data is saved as document message file;
C), print b) the document message file of electronic data obtained, and handwritten signature, the one_to_one corresponding of the document information in the document message file of handwritten signature and corresponding electronic data can be realized.
Under regular situation, adopt a kind of cryptographic hash and in conjunction with the out of Memory (file name, path, size, temporal information) in document information, namely can guarantee the one-to-one relationship between summary and data file.In theory, two different files produce identical a certain cryptographic hash (namely colliding), and such as MD5, although probability is very little, is also possible.But two different files, the situation making their two kinds of cryptographic hash MD5 values and SHA1 value all collide, relies on current computing power, cannot realize.Thus the document information of handwritten signature and the one_to_one corresponding of corresponding electronic data can be realized.
Embodiment two
Based on document information, electronic data is carried out to the method for handwritten signature, comprises following steps:
A), by electronic data storage in storage medium;
B), utilize computing machine to obtain the file name of electronic data, path, size, temporal information, and calculate three cryptographic hash of electronic data: MD5 value, SHA1 value and SHA256 value; Three cryptographic hash of the file name of described electronic data, path, size, temporal information and electronic data, are the document information of this electronic data; And the document information of this electronic data is saved as document message file;
C), print b) the document message file of electronic data obtained, and handwritten signature, the one_to_one corresponding of the document information in the document message file of handwritten signature and corresponding electronic data can be realized;
D), the document message file of the electronic data of b) middle acquisition is preserved in a database; When whether the original handwritten signature of the document message file of electronic data described in Late Stage Verification remains valid, available computers recalculates the document information of this electronic data, and carry out automatic comparison with the document information in the corresponding document message file stored in database, carry out electronic data described in self-verifying and whether change.
Under regular situation, adopt a kind of cryptographic hash and in conjunction with the out of Memory (file name, path, size, temporal information) in document information, namely can guarantee the one-to-one relationship between summary and data file.In theory, two different files produce identical a certain cryptographic hash (namely colliding), and such as MD5, although probability is very little, is also possible.But two different files, the situation making their three kinds of cryptographic hash MD5 values, SHA1 value and SHA256 value all collide, relies on current computing power, cannot realize.Thus the document information of handwritten signature and the one_to_one corresponding of corresponding electronic data can be realized; Meanwhile, whether the original handwritten signature that the present embodiment can realize the document message file of electronic data described in automatic Verification remains valid.
The invention has the beneficial effects as follows: the present invention can set up and sign relation one to one between abstract electronic data and traditional handwriting are signed; Electronic data this electronic data in transmission, filing and data batchmove (such as CD is regularly carved again, storage medium conversion) process without electronic signature can be checked out accurately whether to revise simultaneously; Moreover reliability of the present invention and credibility high, acceptance and the degree of recognition of regulator and administrative authority are high.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. based on document information, electronic data is carried out to the method for handwritten signature, comprises following steps:
A), by electronic data storage in storage medium;
B), utilize computing machine to obtain the file name of electronic data, path, size, temporal information, and calculate two or more cryptographic hash of electronic data; Two or more cryptographic hash of the file name of described electronic data, path, size, temporal information and electronic data, are the document information of this electronic data; And the document information of this electronic data is saved as document message file;
C), print b) the document message file of electronic data obtained, and handwritten signature, the one_to_one corresponding of the document information in the document message file of handwritten signature and corresponding electronic data can be realized.
2. method of based on document information, electronic data being carried out to handwritten signature according to claim 1, is characterized in that: also comprise: d), by the document message file of the electronic data of b) middle acquisition preserve in a database; When whether the original handwritten signature of the document message file of electronic data described in Late Stage Verification remains valid, available computers recalculates the document information of this electronic data, and carry out automatic comparison with the document information in the corresponding document message file stored in database, carry out electronic data described in self-verifying and whether change.
3. method of based on document information, electronic data being carried out to handwritten signature according to claim 1 and 2, is characterized in that: b), and computing machine obtains electronic data two cryptographic hash by hash function MD5 and SHA1: MD5 value and SHA1 value.
4. method of based on document information, electronic data being carried out to handwritten signature according to claim 1 and 2, it is characterized in that: b), computing machine obtains electronic data three cryptographic hash by hash function MD5, SHA1 and SHA256: MD5 value, SHA1 value and SHA256 value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410433664.7A CN104298899A (en) | 2014-08-29 | 2014-08-29 | Method for manually signing electronic data based on file summary information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410433664.7A CN104298899A (en) | 2014-08-29 | 2014-08-29 | Method for manually signing electronic data based on file summary information |
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| Publication Number | Publication Date |
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| CN104298899A true CN104298899A (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410433664.7A Pending CN104298899A (en) | 2014-08-29 | 2014-08-29 | Method for manually signing electronic data based on file summary information |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111177801A (en) * | 2019-12-31 | 2020-05-19 | 航天信息股份有限公司 | Signature method and device of electronic document, storage medium and electronic equipment |
| CN114189510A (en) * | 2021-11-30 | 2022-03-15 | 国网四川省电力公司南充供电公司 | APN-based Internet of things data acquisition system and method |
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| CN1719371A (en) * | 2005-07-08 | 2006-01-11 | 上海中标软件有限公司 | Document digital nano signing and method of reatizing electron seal and hand writing name signing |
| CN1779702A (en) * | 2004-11-26 | 2006-05-31 | 刘昕 | Generation and verification for digital certificate |
| CN101241569A (en) * | 2008-03-07 | 2008-08-13 | 北京华大恒泰科技有限责任公司 | Electronic signature method and device and system |
| CN101514534A (en) * | 2008-02-21 | 2009-08-26 | 叶家盛 | Paper embedded with RFID label capable of being numerically signed for anti-counterfeiting |
| CN101655946A (en) * | 2009-09-24 | 2010-02-24 | 青岛海信移动通信技术股份有限公司 | Method, system and equipment for realizing electronic seal |
| CN102880628A (en) * | 2012-06-15 | 2013-01-16 | 福建星网锐捷网络有限公司 | Hash data storage method and device |
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2014
- 2014-08-29 CN CN201410433664.7A patent/CN104298899A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1779702A (en) * | 2004-11-26 | 2006-05-31 | 刘昕 | Generation and verification for digital certificate |
| CN1719371A (en) * | 2005-07-08 | 2006-01-11 | 上海中标软件有限公司 | Document digital nano signing and method of reatizing electron seal and hand writing name signing |
| CN101514534A (en) * | 2008-02-21 | 2009-08-26 | 叶家盛 | Paper embedded with RFID label capable of being numerically signed for anti-counterfeiting |
| CN101241569A (en) * | 2008-03-07 | 2008-08-13 | 北京华大恒泰科技有限责任公司 | Electronic signature method and device and system |
| CN101655946A (en) * | 2009-09-24 | 2010-02-24 | 青岛海信移动通信技术股份有限公司 | Method, system and equipment for realizing electronic seal |
| CN102880628A (en) * | 2012-06-15 | 2013-01-16 | 福建星网锐捷网络有限公司 | Hash data storage method and device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111177801A (en) * | 2019-12-31 | 2020-05-19 | 航天信息股份有限公司 | Signature method and device of electronic document, storage medium and electronic equipment |
| CN114189510A (en) * | 2021-11-30 | 2022-03-15 | 国网四川省电力公司南充供电公司 | APN-based Internet of things data acquisition system and method |
| CN114189510B (en) * | 2021-11-30 | 2023-07-25 | 国网四川省电力公司南充供电公司 | APN-based Internet of things data acquisition system and method |
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Application publication date: 20150121 |
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