CN1391198A - Handwriting digital signature system and method - Google Patents
Handwriting digital signature system and method Download PDFInfo
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- CN1391198A CN1391198A CN 01115963 CN01115963A CN1391198A CN 1391198 A CN1391198 A CN 1391198A CN 01115963 CN01115963 CN 01115963 CN 01115963 A CN01115963 A CN 01115963A CN 1391198 A CN1391198 A CN 1391198A
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Abstract
A method for handwriting-type digital signature includes such steps as receiving a hand-written signature input by a handwriting input device, generating its digital signature, combining it with a document stored in a front-end electronic device, and storing the signal document in said electronic device. A system for implementing said method is also disclosed.
Description
The present invention relates to a kind of handwriting digital signature system and method, relate in particular to and a kind ofly can use a hand-written input media, the handwriting digital signature system and the method for the archives that are stored in the front-end electronics being signed by Wireless transmission mode.
In recent years, because popularizing of computer equipment, general document is handled and is all adopted e-file to replace old original paper document, so that can utilize the facility of Network Transmission to save time, exempt paper document delivery and the inconvenience that transmits and time-consuming, yet, using e-file still is some shortcoming, do not ensured as safety of files, and because e-file is to belong to a numerical data, so can be by being responsible for signature to confirm file unlike paper document.
In the prior art, be technology, cooperate the algorithm of various encryptions to come correctness and the integrality of visa e-file to guarantee this e-file with digital signature (digital signature).When the user desires to come the visa e-file with digital signature, at first, the user must produce earlier a pair of asymmetric golden key, and wherein public-key cryptography (public key) is placed on disclosed place and allows people's access, and private cipher key (private key) is then preserved voluntarily by the user.Then, with special algorithm, e-file is performed calculations as existing hash function (Hash Function) etc., to obtain a informative abstract (message digest), and after this summary encrypted do computing with private cipher key, produce digital signature, send out with prime information.
Whether the file recipient can be decrypted digital signature by public-key cryptography, and with hash function e-file performed calculations after receiving e-file, compare both then and conform to.The content that then can learn e-file is not changed if conform to.
Above-mentioned digital signature technology no doubt can guarantee that the content of e-file is not altered, but it still has weak point.For example, if the content of e-file is to be prepared by the assistant who is responsible for earlier, send out after being responsible for affirmation, then because e-file quantity is too much, the private cipher key of e-file certainly will be by assistant's keeping again.In such cases, though digital signature can be guaranteed the integrality of electronic file content, the recipient of e-file only can know private cipher key by assistant's keeping, and is difficult to confirm whether this file was confirmed by the person in charge really.In the file of tradition with paper records, can confirm with signature way because be responsible for, thus there are not the problems referred to above, but the file full powers are transferred to assistant's processing.
Moreover, carry out the restriction that visa can be subjected to hardware aspect with digital signature.That is, when person in charge's desire was carried out visa to a plurality of archives in many computing machines, it must carry out the work to the e-file visa before computing machine.So significantly reduced efficient and the convenience that e-file is carried out visa.If tradition with the file of paper records, has pen as long as be responsible for, promptly can directly on file, sign anywhere to carry out visa, can not be subjected to the restriction on the region.
From the above,, will help the affirmation of source electronic document, and improve the convenience of confirming action if the mechanism of carrying out the e-file visa with signature way can be provided.Therefore, how providing the signature visa mechanism of e-file is a current big problem in fact.
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of handwriting digital signature system and method, it can carry out visa in the signature mode to the archives that are stored in the front-end electronics, so as to solving in the prior art, the file recipient can't learn the problem whom e-file confirmed through.
Another object of the present invention is to provide a kind of handwriting digital signature system and method, it can improve the efficient and the convenience of visa.
For reaching above-mentioned purpose, the invention provides a kind of handwriting digital signature method, it is to accept the signature image that a user is imported with handwriting mode with hand input device earlier, produces a digital signature data according to the signature image again.Then, the present invention merges archives and digital signature data, and producing visa archives, and the visa archives have been stored in the front-end electronics.
In the present invention, hand input device is to carry out signal according to a wireless transmission protocol to be connected with front-end electronics, and above-mentioned wireless transmission protocol can be bluetooth (bluetooth) host-host protocol or infrared transmission agreement etc.
Digital signature data of the present invention is to produce according to the signature time of signature image with input signature image.
Digital signature data of the present invention is transferred into front-end electronics, to produce visa archives in front-end electronics.
Archives of the present invention are transferred into hand input device, to produce visa archives at hand input device.
The present invention also merges the digital signature of archives, to produce visa archives when merging archives and digital signature data.
The present invention also provides a kind of handwriting digital signature system, and it comprises a hand-written input media and a front-end electronics.Hand input device comprises a signature image receiver module and a digital signature data generation module, the image receiver module of wherein signing receives the signature image that a user is imported with handwriting mode, and the digital signature data generation module produces a digital signature data according to the signature image.Front-end electronics then comprises an archives visa module and an archives storage module, wherein archives visa module merges archives and the digital signature data that is stored in front-end electronics, to produce visa archives, archives storage module visa archives is stored in front-end electronics.
In the present invention, hand input device is to carry out signal according to a wireless transmission protocol to be connected with front-end electronics, and it can be Bluetooth transmission protocol or infrared transmission agreement.
Advantage of the present invention is:
1, owing to being to utilize a portable handwriting input media with wireless transmission function to come the archives that are stored in the front-end electronics are carried out the action of digital signature, so the archives that the recipient of archives can confirm to be received are through whose affirmation according to handwriting digital signature system of the present invention and method.
2, be to utilize a portable handwriting input media with wireless transmission function to come the archives that are stored in the front-end electronics are carried out the action of digital signature owing to complying with handwriting digital signature system of the present invention and method, so only need a hand input device just can cooperate with a plurality of front-end electronics, thereby the cost of saving hand input device, and can make that the action of digital signature is more convenient by wireless transmission, more, move so can carry out digital signature to a plurality of archives simultaneously owing to use Bluetooth protocol to make wireless transmission.
The present invention is described in detail below in conjunction with accompanying drawing:
Fig. 1 is a synoptic diagram, shows the synoptic diagram of the handwriting digital signature system of preferred embodiment of the present invention;
Fig. 2 is a process flow diagram, shows the process flow diagram of the handwriting digital signature method of preferred embodiment of the present invention;
Fig. 3 is a synoptic diagram, shows the synoptic diagram of the handwriting digital signature system of another preferred embodiment of the present invention.
1 handwriting digital signature system
10 hand input devices
20 front-end electronics
11 signature image receiver modules
12 digital signature data generation modules
21 archives visa modules
22 archives storage modules
101 archives
102 signature images
103 digital signature datas
104 visa archives
105 signature times
106 digital signature
2 handwriting digital signature methods
The step of 201～211 handwriting digital signature methods
80 users
Hereinafter with reference to the handwriting digital signature system and the method for relevant icon explanation preferred embodiment of the present invention, wherein, same components will be illustrated with identical symbol.
Please refer to shown in Figure 1ly, the handwriting digital signature system 1 of preferred embodiment of the present invention comprises a hand-written input media 10 and a front-end electronics 20.Wherein, hand input device 10 comprises a signature image receiver module 11, a digital signature data generation module 12 and one first wireless communication module 13.In hand input device 10, signature image receiver module 11 receives the signature image 102 that a user 80 is imported with handwriting mode, and 12 foundation signatures of digital signature data generation module image 102 produces a digital signature data 103.
Front-end electronics 20 comprises an archives visa module 21, an archives storage module 22 and one second wireless communication module 23, and carries out signal with hand input device 10 and be connected according to a wireless transmission protocol, with reception digital signature data 103.In front-end electronics 20, archives visa module 21 merges archives 101 and the digital signature data 103 that is stored in front-end electronics 20, to produce visa archives 104, archives storage module 22 stores 23 of visa archives 104, the second wireless communication modules to carry out signal with first wireless communication module 13 in the aforementioned hand input device 10 and is connected.
In the present embodiment, hand input device 10 can be a personal digital assistant (personaldigital assistant, PDA), signature image receiver module 11 can adopt the handwriting pad that is arranged on the personal digital assistant, 12 of digital signature data generation modules are the program module that is stored in the personal digital assistant, processor in the personal digital assistant can produce digital signature data 103 according to the signature image 102 and the signature time 105 of user's 80 inputs after carrying out this program module.Yet be noted that, those skilled in the art also can adopt any hand input device 10 with image receiver module 11 and digital signature data generation module 12, and each module also can multi-form enforcement finishing its function, and do not exceed spirit of the present invention and category.
In the present embodiment, aforesaid first wireless communication module 13 and second wireless communication module 23 are existing Bluetooth chip, make hand input device 10 can carry out signal according to Bluetooth transmission protocol with front-end electronics 20 and are connected.Generally speaking, Bluetooth chip can be divided into two parts according to the combination of its hardware configuration: one is analog radio frequency radio part, and another then is the digital processing part.The analog radio frequency radio portion has been drawn together receiving end and transmitting terminal part, can amplify (LNA), intermediate-frequency filter (IF Filter), simulation and digital quantizer (A/D and D/A), Gauss's modulator (Gaussian Modulator), phaselocked loop (PLL), frequency synthesizer (Frequency Synthesizer) haply by low noise, reaching voltage-controlled oscillator (VCO) or the like forms, its major function is for receiving and the lifting frequency of emission high-frequency signal, radio frequency and baseband signal, and modulation and separate the modulation signal.In addition, partly then including fundamental frequency controller, microprocessor and internal memory in digital processing, mainly is to carry out the specification of blue-tooth device and the keyholed back plate of signal.The fundamental frequency controller is responsible for the processing of coding and scrambled, frequency hopping and the package of signal; Microprocessor mostly uses the processor of 16 reduced instruction set computers at present; Internal memory is generally flash memory (FlashMemory), static RAM (SRAM) or ROM (read-only memory) (ROM), it is in order to store a plurality of softwares, LM (Link Manager) for example, L2CAP (Link layer controland Adaptation protocol) etc., wherein, LM is responsible for the setting that fundamental frequency links, discharge and management, L2CAP is responsible for Datagram, cutting and assembling (Segmentaion and Reassembly), communications protocol multitasking (Multiplexing), and service quality functions such as (Quality of service).
In the present embodiment, owing to adopted Bluetooth transmission protocol to transmit various archives and data, so can the while transmit signal in the mode of one-to-many.The user can use personal digital assistant simultaneously to the sign visa of mode of a plurality of archives in many front-end electronics.Moreover, because data transmission wirelessly, so can improve the sign convenience of visa of user's utilization personal digital assistant.For example, the person in charge can hold personal digital assistant to each department, and respectively to the e-file of the visa that needs in the various computing machine to sign, the visa of directly on personal digital assistant, signing.
For the easier quilt of content of the present invention is understood, below will the flow process according to handwriting digital signature method of the present invention be described for an embodiment.
In following embodiment, hand input device 10 is a personal digital assistant, and front-end electronics 20 then is a computer installation.Signature image receiver module 11 is for being located at the handwriting pad in the personal digital assistant, and 12 of digital signature data generation modules are the program module that is stored in the personal digital assistant.Archives visa module 21 is the program module in the computer installation, and 22 of archives storage modules are the Winchester disk drive in the computer installation.
Please refer to shown in Figure 2ly, is earlier in step 201 according to the handwriting digital signature method 2 of preferred embodiment of the present invention, accepts the signature image 102 that the user is imported with handwriting mode with the handwriting pad on the personal digital assistant.But user's usability should straight being connected on the handwriting pad be signed, and handwriting pad can get off the track record that induction pen moves on handwriting pad, to produce signature image 102.When the user signed on handwriting pad, the operating system of personal digital assistant can write down the time of origin of this incident (event), with the signature time 105 as user's signature.
After user's signature finished, in step 202, digital signature data generation module 12 was integrated signature image 102 and signature time 105, to produce a digital signature data 103.In this step, those skilled in the art can use the technology of various equivalences, produce digital signature data 103, for example, after signature image 102 produces, digital signature data generation module 12 can be specific will the sign image archives of image 102 boil down tos one specific format of compressed encoding form, and with the generation time of signature time 105 as these image archives, or the time 105 of will signing be embedded in the image archives in for example watermark modes such as (watermark), to produce digital signature data 103.
In the present embodiment, if archives 101 are to be sent to personal digital assistant by computer installation, to merge archives 101 and digital signature data 103 in personal digital assistant, or digital signature data 103 is sent to computer installation, to merge archives 101 and digital signature data 103 at computer installation.In step 203, if archives 101 are to be sent to personal digital assistant by computer installation, then carry out step 204, judged whether that further digital signature 106 (digitalsignature) exists.If there is digital signature 106 to exist, then enter step 206, in personal digital assistant, utilize digital signature data 103 and digital signature 106 visa archives 101, to produce visa archives 104.If there is not digital signature 106 to exist, then enter step 207, in personal digital assistant, utilize digital signature data 103 visa archives 101, to produce visa archives 104.
Similar to above-mentioned flow process, in step 203,, then enter step 205 if archives 101 are to be sent to computer installation by personal digital assistant, judged whether that further digital signature 106 exists.If there is digital signature 106 to exist, then enter step 208, in computer installation, utilize digital signature data 103 and digital signature 106 visa archives 101, to produce visa archives 104.If there is not digital signature 106 to exist, then enter step 209, in computer installation, utilize digital signature data 103 visa archives 101, to produce visa archives 104.
The technology of above-mentioned relevant digital signature is well known to those skilled in the art, so locate to repeat no more.Only be noted that, the public-key cryptography relevant with digital signature (public key), private cipher key (private key) and informative abstract related datas such as (message digest), visual actual conditions produce and store in personal digital assistant or computer installation.
If the visa archives are to produce in personal digital assistant, then step 210 will transmit the visa archives to computer installation, and in step 211, and visa archives are stored in the hard disk of computer installation.If the visa archives are to produce at computer installation, then directly carry out step 211 and get final product.
In the present embodiment, personal digital assistant and computer installation are to transmit various archives and data according to Bluetooth transmission protocol.Because Bluetooth protocol can be is simultaneously transmitted signal in the mode of one-to-many, so the user can use personal digital assistant simultaneously to the sign visa of mode of a plurality of archives in many computer installations.Moreover, because data transmission wirelessly, so can improve the sign convenience of visa of user's utilization personal digital assistant.
In sum, the handwriting digital signature system of preferred embodiment of the present invention and method are to utilize a portable handwriting input media with wireless transmission function to come the archives that are stored in the front-end electronics are carried out the visa action of digital signature, so only need a hand input device just can cooperate with a plurality of front-end electronics, thereby the cost of saving hand input device, and can make that the action of digital signature is more convenient by wireless transmission, also, move so can carry out digital signature to a plurality of archives simultaneously owing to use Bluetooth protocol to make wireless transmission.
Any those skilled in the art all can carry out equivalent modifications according to embodiments of the invention to above-mentioned, and do not break away from its spirit and category.Please refer to Fig. 3, for example,, then archives visa module 21 can be arranged in the hand input device if desire is sent to the hand input device visa of signing with archives.In addition, hand input device also can be any electronic installation of accepting user's handwriting input signature function that has, and also can use other wireless transmission protocol between itself and the front-end electronics, for example infrared transmission agreement etc. is carried out the transmission of signal and data.
Therefore, the above only is an illustrative, but not is restrictive.Any its spirit that do not break away from, all should be included in protection scope of the present invention its equivalent modifications of carrying out or change with category.
Claims (9)
1, a kind of handwriting digital signature method is to use a hand-written input media so that archives that are stored in a front-end electronics are carried out visa, comprising:
Accept the signature image that a user is imported with handwriting mode with this hand input device;
Produce a digital signature data according to this signature image;
Merge these archives and this digital signature data, to produce visa archives; And with this visa archives be stored in this front-end electronics.
2, handwriting digital signature method according to claim 1 is characterized in that: this hand input device is to carry out signal according to a wireless transmission protocol to be connected with this front-end electronics.
3, handwriting digital signature method according to claim 1 is characterized in that: this digital signature data is to produce according to the signature time of this signature image with this signature image of input.
4, handwriting digital signature method according to claim 1 is characterized in that: after producing this digital signature data, this digital signature data is sent to this front-end electronics, to produce this visa archives in this front-end electronics.
5, handwriting digital signature method according to claim 1 is characterized in that: after producing this digital signature data, these archives are sent to this hand input device, to produce this visa archives at this hand input device.
6, a kind of handwriting digital signature system comprises:
One hand-written input media, comprise a signature image receiver module and a digital signature data generation module, this signature image receiver module receives the signature image that a user is imported with handwriting mode, and this digital signature data generation module then produces a digital signature data according to this signature image; And
One front-end electronics, it is to carry out signal according to a wireless transmission protocol with this hand input device to be connected to receive this digital signature data, and comprise an archives visa module and an archives storage module, this archives visa module merges archives and this digital signature data that is stored in this front-end electronics, to produce visa archives, this archives storage module then stores this visa archives.
7, handwriting digital signature system according to claim 6 is characterized in that: this digital signature data is to produce according to the signature time of this signature image with this signature image of input.
8, a kind of handwriting digital signature system comprises:
One hand-written input media, comprise a signature image receiver module, a digital signature data generation module and an archives visa module, this signature image receiver module receives the signature image that a user is imported with handwriting mode, this digital signature data generation module produces a digital signature data according to this signature image, this archives visa module merges archives and this digital signature data that is stored in this front-end electronics, to produce visa archives; And
One front-end electronics, it is to carry out signal according to a wireless transmission protocol and this hand input device to be connected with transmission and to be stored in archives of this front-end electronics to this hand input device, and receive this visa archives, and comprise an archives storage module, this archives storage module is to store this visa archives.
9, handwriting digital signature system according to claim 8 is characterized in that: this digital signature data is to produce according to the signature time of this signature image with this signature image of input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01115963 CN1391198A (en) | 2001-06-11 | 2001-06-11 | Handwriting digital signature system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01115963 CN1391198A (en) | 2001-06-11 | 2001-06-11 | Handwriting digital signature system and method |
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| CN1391198A true CN1391198A (en) | 2003-01-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100334518C (en) * | 2005-07-08 | 2007-08-29 | 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 |
| CN100442293C (en) * | 2005-05-10 | 2008-12-10 | 威盛电子股份有限公司 | Method for combination of original files of hardware design language and checking data files |
| CN101241544B (en) * | 2007-02-09 | 2012-08-29 | 智点科技（深圳）有限公司 | Signture dynamic discrimination method |
| CN105991291A (en) * | 2015-03-17 | 2016-10-05 | 北京蒙恬科技有限公司 | Cross-platform electronic file and signature data integration method and system |
| CN109246376A (en) * | 2017-07-10 | 2019-01-18 | 云想科技股份有限公司 | Anti-counterfeiting electronic signature method and electronic signature device thereof |
-
2001
- 2001-06-11 CN CN 01115963 patent/CN1391198A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442293C (en) * | 2005-05-10 | 2008-12-10 | 威盛电子股份有限公司 | Method for combination of original files of hardware design language and checking data files |
| CN100334518C (en) * | 2005-07-08 | 2007-08-29 | 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 |
| CN101241544B (en) * | 2007-02-09 | 2012-08-29 | 智点科技（深圳）有限公司 | Signture dynamic discrimination method |
| CN105991291A (en) * | 2015-03-17 | 2016-10-05 | 北京蒙恬科技有限公司 | Cross-platform electronic file and signature data integration method and system |
| CN109246376A (en) * | 2017-07-10 | 2019-01-18 | 云想科技股份有限公司 | Anti-counterfeiting electronic signature method and electronic signature device thereof |
| CN109246376B (en) * | 2017-07-10 | 2021-06-29 | 云想科技股份有限公司 | Anti-counterfeiting electronic signature method and electronic signature device thereof |
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