CN117592125B - Reliability electronic signature method of paperless transaction system for second-hand house transaction - Google Patents
Reliability electronic signature method of paperless transaction system for second-hand house transaction Download PDFInfo
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Abstract
The invention provides a reliable electronic signature method of a paperless transaction system for a second-hand house transaction, and relates to the technical field of electronic signatures. The method comprises the steps of sending electronic signature request information and obtaining signature track transformation information sent by a target terminal through different paths; the signature track is re-carved on the electronic signature board according to the signature track transformation information to form terminal typical signature information; signature authentication information from the data platform is obtained and is matched and compared with typical signature information of the terminal, so that complete electronic signature authentication information is formed. According to the method, the signature information is authenticated and uploaded and matched with different paths, so that safer information authentication is realized, and the reliability of the electronic signature information is greatly improved.
Description
Technical Field
The invention relates to the technical field of electronic signatures, in particular to a reliable electronic signature method of a paperless transaction system for a second-hand house transaction.
Background
An electronic signature is data contained in electronic form in a data file that is attached to identify the signer and indicate that the signer approves the content therein. In popular terms, electronic signatures are electronic forms of signatures of electronic documents by cryptographic techniques, not digital imaging of written signatures, which are similar to handwritten signatures or seals, or electronic seals.
Currently, electronic signatures can be used as legal information, thus greatly improving the efficiency and convenience of establishing a favorable demand by using electronic signatures. In the field of real estate, and in particular, second-hand housing transactions are very frequent. If the off-line manual contract signing mode is adopted, the efficiency and convenience of the transaction are not facilitated, and bad experience is brought to the clients. The electronic signature mode can quickly realize transfer and authentication of property rights, and is greatly convenient for buyers, sellers and intermediaries. The most widely used electronic signature information in the second-hand house transaction is now still to provide real-time legal name signatures on the electronic contract to achieve the integrity and reasonable legal nature of the electronic contract. Because the electronic signature information has a certain network security risk, no proper mode is currently available for complete elimination, and further, how to improve the reliability of the signature information when the electronic signature is performed needs to be considered so as to ensure fairness, integrity, safety and reliability of transactions.
Therefore, the reliable electronic signature method of the paperless handling system for the second-hand house transaction is designed, and the signature information is authenticated and uploaded and matched with different paths, so that safer information authentication is realized, the reliability of the electronic signature information is greatly improved, and the problem to be solved is urgent at present.
Disclosure of Invention
The invention aims to provide a reliable electronic signature method of a paperless transaction system for a second-hand house transaction, which is characterized in that request information for acquiring an electronic signature is sent to a client terminal so as to enable the client terminal to provide electronic signature demand data, the client carries out incomplete splitting on the electronic signature information after completing the submission of the electronic signature information on the terminal, a part of the electronic signature information is subjected to numerical conversion on the terminal to form signature track conversion information which can be sent through different paths and is sent to a transaction platform, the other part of the signature track conversion information is sent to the data platform through an authentication path supported by the data platform in an offline manner, signature re-etching verification based on identity authentication is carried out on the data platform, the client identity information provided by the data platform authentication is sent to the transaction platform together after the verification is completed, and the transaction platform completes matching analysis of the signature track conversion information and the re-etching verification information so as to form complete electronic signature information. The electronic signature is split incompletely, so that the situation that the electronic signature is intercepted and forged can be effectively avoided, the part which is directly sent to the transaction platform by the terminal is sent through different paths, the information safety is further improved, meanwhile, the other part is transferred to the path of the data platform offline at the terminal, on one hand, the information can be safely transmitted by means of a safety protection system of the data platform, on the other hand, the situation that the terminal information is forged is avoided through authentication of the data platform, the transaction platform obtains complete signature information through data matching, and the reliability and accuracy of the electronic signature are greatly improved.
The invention provides a reliable electronic signature method of a paperless transaction system for a second-hand house transaction, which comprises the steps of sending electronic signature request information and obtaining signature track conversion information sent by a target terminal through different paths; the signature track is re-carved on the electronic signature board according to the signature track transformation information to form terminal typical signature information; signature authentication information from the data platform is obtained and is matched and compared with typical signature information of the terminal, so that complete electronic signature authentication information is formed.
In the method, request information for acquiring an electronic signature is sent to a client terminal so as to enable a terminal client to provide electronic signature demand data, the client carries out incomplete splitting on the electronic signature information after completing the submission of the electronic signature information on the terminal, one part of the electronic signature information is subjected to digital conversion on the terminal so as to form signature track conversion information which can be sent through different paths and is sent to a transaction platform, the other part of the electronic signature information is sent to the data platform through an authentication path supported by the terminal offline transfer data platform so as to carry out signature repeated-etching verification based on identity authentication, the client identity information provided by the data platform authentication is sent to the transaction platform together after the verification is completed, and the transaction platform completes matching analysis of the signature track conversion information and repeated-etching verification information so as to form complete electronic signature information. The electronic signature is split incompletely, so that the situation that the electronic signature is intercepted and forged can be effectively avoided, the part which is directly sent to the transaction platform by the terminal is sent through different paths, the information safety is further improved, meanwhile, the other part is transferred to the path of the data platform offline at the terminal, on one hand, the information can be safely transmitted by means of a safety protection system of the data platform, on the other hand, the situation that the terminal information is forged is avoided through authentication of the data platform, the transaction platform obtains complete signature information through data matching, and the reliability and accuracy of the electronic signature are greatly improved.
As a possible implementation manner, after the signature track transformation information is obtained by the target terminal, the electronic signature request information is analyzed and extracted by the following analysis manner: a signing board surface is established, signing information on the signing board surface is obtained, and real-time signing information is formed; extracting fonts of the real-time signature information according to the signing direction to form a sequential font set; splitting handwriting of each font in the sequential font set to form a font handwriting set; cutting and extracting random handwriting segments from the font handwriting set corresponding to each font to form a target handwriting cutting segment set; each target handwriting intercepting segment in the target handwriting intercepting segment set is digitized to form a target handwriting track set; and performing code transformation on each target handwriting track in the target handwriting track set to form signature track transformation information.
In the invention, signature track conversion information is used as incomplete electronic signature information provided by a terminal client and is directly transmitted to a transaction platform by the terminal. In order to further improve the reliability and the safety of the part of electronic signature information, the randomness of incomplete information is obtained by carrying out font extraction and random splitting on signature information signed by a client in real time. Meanwhile, the information after the numerical value is randomly transmitted through an optional path, so that the safety and reliability of information transmission are further improved.
As one possible implementation manner, performing font extraction on the real-time signature information according to the signing direction to form a sequential font set, including: setting a font extraction step length k, sequentially establishing extraction lines perpendicular to the signing direction by taking the font extraction step length k as an interval along the signing direction, and carrying out the following analysis and judgment: when the intersection point of the extraction line and the real-time signature is not more than 1, intercepting the part of the real-time signature before the extraction line to form a font to be judged; comparing the characteristics of the fonts to be judged with those in the font library, if the characteristics of the fonts to be judged are matched with those in the font library, determining the fonts to be judged as corresponding fonts in the font library, and continuously establishing an extraction line according to the font extraction step k to re-extract the fonts to be judged; if the character to be judged is not matched with the character in the character library, establishing an extraction line according to the character extraction step length k, continuously determining the extraction line of which the next intersection point is not more than 1, and taking the part in front of the extraction line as the character to be judged to carry out characteristic matching judgment; repeating the above steps until the real-time signed fonts are extracted, and arranging the identified fonts according to the signing direction to form a sequential font set.
In the present invention, the extraction of incomplete information of a real-time signing font is performed based on signing information of a single font. It is first to confirm and separate the fonts of the real-time signature information. The sign board surface is used for acquiring complete real-time sign information on one hand, and carrying out numerical value based on a unified coordinate system on incomplete sign information extracted randomly later on the other hand, so that a transaction platform can directly re-etch the numerical value information into sign information, and the reference uniformity of data is ensured. The extraction and identification are partially carried out on the extracted fonts through setting the step length form based on the intersection points of the extraction lines and the real-time signature fonts, and it can be understood that basically all the signature fonts have intervals or single continuous strokes among different fonts, so that the complete splitting of the fonts can be ensured by taking no more than one intersection point as a judgment basis of font separation. Meanwhile, the split font part and the font library are subjected to characteristic comparison to accurately judge the integrity of the fonts, the font library can be a characteristic database established based on big data, the font library has strong universality, the font library can also be formed by carrying out daily signature acquisition and extraction on terminal clients, and the accuracy of font variation can be improved.
As one possible implementation manner, the handwriting splitting is performed on each font in the sequential font set to form a font handwriting set, including: combining the strokes of the corresponding fonts in the font library for each font in the sequential font set to extract the stroke segments and the continuous stroke segments of the fonts; and for each font, arranging the stroke segments and the continuous stroke segments according to the writing sequence to form a font handwriting set corresponding to the font.
In the invention, after the real-time signing and writing of the fonts are split, each font cannot be directly digitized, and the complexity of the information of the whole font is considered. It should be noted that, although the strokes are split for the signatures signed and written in real time for different object objects, the basic strokes still store the characteristic information of the individuation of the object, and the characteristic information can be still included after the numerical analysis, so that the data information of the real-time signed and written fonts is not destroyed.
As a possible implementation manner, the cutting and extracting of the random handwriting segment is performed on the font handwriting set corresponding to each font, so as to form a target handwriting cutting segment set, including: setting a random functionAnd randomly extracting the handwriting segments which do not exceed the handwriting extraction limit value from the font handwriting set corresponding to each font according to the random function; for each extractedThe handwriting segment is subjected to half-segment interception to form a handwriting intercepting segment; and marking the stroke sequence number of each handwriting interception section under the font to form a target handwriting interception section set.
In the invention, it can be understood that if all strokes of all fonts signed and written in real time are digitized and sent to the transaction platform, on one hand, a large amount of function data information is generated, more resources are occupied, which is not beneficial to efficient information transmission, and on the other hand, although font splitting is performed on the transaction platform for sending the digitized stroke segments and the continuous stroke segments, the sent information is complete information, and therefore, the risk in terms of safety and reliability still exists. Therefore, the electronic signature information directly sent to the transaction platform by the client terminal adopts a form of sending part information, the reliability and the safety of the sent information are further improved, the complete stroke section and the continuous stroke section are cut and extracted, and meanwhile, when the cut data information is used for comparison verification in the later period, the accuracy of the subsequent information comparison verification is improved due to the fact that the cut data information needs higher matching degree, so that the information authentication of the electronic signature is more reliable. The random function may be set as desired.
As one possible implementation manner, digitizing each target handwriting interception section in the target handwriting interception section set to form a target handwriting track set includes: establishing a signature plane coordinate system on a signature board surface; establishing a track function under a sign plane coordinate system for each handwriting intercepting section in the target handwriting intercepting section set to form a target handwriting track function; the corresponding target handwriting track function is endowed with the stroke sequence number mark corresponding to each handwriting intercepting section in the target handwriting intercepting section set, and target handwriting track function information is formed; and combining the target handwriting track function information corresponding to all the handwriting intercepting sections to form a target handwriting track set.
In the invention, two aspects of effective digitizing of the intercepted stroke information need to be considered, namely, the digitized data information can completely inherit the characteristics of the stroke data information so as to finish the contrast verification of the data on a transaction platform, and the transaction platform can accurately convert the digitized data into the stroke information after receiving the digitized information after the digitized data is formed on a client terminal, so that a reference basis for the forward and reverse converting of the digitized data needs to be provided, and the sign board surface is used as a plane coordinate system basis of function digitizing, thereby being capable of really ensuring the barrier-free converting of the data on both the client terminal and the transaction platform.
As one possible implementation manner, performing code transformation on each target handwriting track in the target handwriting track set to form signature track transformation information, including: performing Fourier transform on each target handwriting track function in the target handwriting track set to form a target transformation track function; the corresponding stroke sequence number marks corresponding to the target handwriting track function in the target handwriting track set are endowed with the corresponding target transformation track function, and target transformation track function information is formed; and combining target transformation track function information corresponding to all target handwriting track functions to form signature track transformation information.
In the invention, it can be understood that the function formed by direct conversion is quite visual and can be easily identified as the type of information, so that the digitized information needs to be further converted to improve the confidentiality of the information. The invention adopts Fourier transformation to the numerical function to realize the hiding of the data. Compared with the data encryption form of the electronic certificate, the transformation parameters of the Fourier transformation can be set for different terminals to form personalized transformation information, so that the confidentiality is improved, and meanwhile, the trouble of carrying and using keys by the client terminal is also avoided. Of course, the level of information hiding exhibited by the fourier transform can be determined by the parameters and the level of the transform.
As a possible implementation manner, the signature track is re-carved on the electronic signature board according to the signature track transformation information to form terminal typical signature information, which includes: performing inverse Fourier transform on all target transformation track functions in the signature track transformation information to form target track functions; sequentially carrying out repeated engraving on all target track functions on an electronic signature board according to corresponding stroke sequence numbers to form a signature track; and obtaining track information after the re-engraving is completed, and forming typical signature information of the terminal.
In the invention, after the converted signature data information is sent to a transaction platform through different paths, stroke data is displayed according to the established inverse Fourier transform parameters aiming at a target terminal, and the stroke data is reproduced on an electronic signature board of the transaction platform to be used as a data basis for matching verification. It will be appreciated that the sequence number information assigned facilitates a quick sequence conversion, and may also be used as part of a matching verification parameter, after all, in the case of both identical strokes and overlapping words in the name.
As one possible implementation, the signature authentication information of the data platform is obtained by: acquiring fixed-view signature video information converted by a target terminal offline; carrying out face information identification according to the fixed visual angle signature video information to form face information authentication result data; trace tracing based on signature actions is carried out according to the signature video information with the fixed viewing angle, so that real-time trace tracing signature trace information is formed; and combining the face information authentication result data and the real-time trace back signature track information to form signature authentication information.
In the invention, the data platform is a data link from the terminal to the data center which is safer and more efficient than the transaction platform, and the data authentication of the data platform is required to be obtained by considering the property transaction itself, so that the video information in the electronic signature information can be verified by the link of the data platform and then provided for the transaction platform after verification, on one hand, the verification flow of property transaction in terms of assets, identities and the like can be simplified, on the other hand, the safe transmission of the electronic signature information and the extraction of customer information can be realized, and further, the data platform provides more accurate transaction basic data information for the transaction platform. The data platform performs tracking and tracing on the real-time signature through the video information on one hand, forms basic reference data for comparing typical signature information formed by conversion on the transaction platform, performs identity verification through face recognition on the other hand, and further provides customer identity information related to real estate transaction for the transaction platform.
As one possible implementation manner, the method for obtaining signature authentication information from the data platform and comparing the signature authentication information with typical signature information of the terminal to form complete electronic signature authentication information includes: performing handwriting matching analysis on real-time tracing signature track information and terminal typical signature information: if the real-time tracing signature track information is matched with the terminal typical signature information, determining that a signature confirmation event is established, and outputting real-time tracing signature track information and face information authentication result data; if the real-time tracing signature track information is not matched with the terminal typical signature information, determining that the signature confirmation event is not established, and outputting prompt information for canceling signature confirmation.
In the invention, after the transaction platform respectively acquires typical signature information and trace information, the electronic signature board is used as a reference for matching verification, and the correctness of the terminal request is confirmed. And simultaneously, providing the matched corresponding identity information, and further completing the tasks of web signing and the like of the real estate transaction.
The reliable electronic signature method of the paperless transaction system for the second-hand house transaction has the advantages that:
according to the method, request information for acquiring an electronic signature is sent to a client terminal so that a terminal client provides electronic signature demand data, the client carries out incomplete splitting on the electronic signature information after completing submission of the electronic signature information on the terminal, one part of the electronic signature information is subjected to numerical conversion on the terminal to form signature track conversion information which can be sent through different paths and is sent to a transaction platform, the other part of the electronic signature information is sent to the data platform through an authentication path supported by the data platform in an offline manner, signature re-engraving verification based on identity authentication is carried out on the data platform, the client identity information provided by the data platform authentication is sent to the transaction platform together after verification is completed, and the transaction platform completes matching analysis of the signature track conversion information and the re-engraving verification information so as to form complete electronic signature information. The electronic signature is split incompletely, so that the situation that the electronic signature is intercepted and forged can be effectively avoided, the part which is directly sent to the transaction platform by the terminal is sent through different paths, the information safety is further improved, meanwhile, the other part is transferred to the path of the data platform offline at the terminal, on one hand, the information can be safely transmitted by means of a safety protection system of the data platform, on the other hand, the situation that the terminal information is forged is avoided through authentication of the data platform, the transaction platform obtains complete signature information through data matching, and the reliability and accuracy of the electronic signature are greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments of the present invention will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a step diagram of a method for reliability electronic signature of a paperless transaction system for a second-hand house transaction according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.
An electronic signature is data contained in electronic form in a data file that is attached to identify the signer and indicate that the signer approves the content therein. In popular terms, electronic signatures are electronic forms of signatures of electronic documents by cryptographic techniques, not digital imaging of written signatures, which are similar to handwritten signatures or seals, or electronic seals.
Currently, electronic signatures can be used as legal information, thus greatly improving the efficiency and convenience of establishing a favorable demand by using electronic signatures. In the field of real estate, and in particular, second-hand housing transactions are very frequent. If the off-line manual contract signing mode is adopted, the efficiency and convenience of the transaction are not facilitated, and bad experience is brought to the clients. The electronic signature mode can quickly realize transfer and authentication of property rights, and greatly improves sellers, buyers and intermediaries. The most widely used electronic signature information in the second-hand house transaction is now still to provide real-time legal name signatures on the electronic contract to achieve the integrity and reasonable legal nature of the electronic contract. Because the electronic signature information has a certain network security risk, no proper mode is currently available for complete elimination, and further, how to improve the reliability of the signature information when the electronic signature is performed needs to be considered so as to ensure fairness, integrity, safety and reliability of transactions.
Referring to fig. 1, an embodiment of the present invention provides a reliable electronic signature method for a paperless transaction system of a second-hand house transaction, where the method sends request information for acquiring an electronic signature to a client terminal, so that the client terminal provides electronic signature demand data, after the client finishes submitting the electronic signature information on the terminal, the client performs incomplete splitting on the electronic signature information, a part of the electronic signature information is digitally transformed at the terminal to form signature track transformation information that can be sent through different paths and sent to a transaction platform, another part of the electronic signature information is transferred offline to an authentication path supported by the data platform through the terminal and sent to the data platform for signature re-lithography verification based on identity authentication, after verification is completed, the client identity information provided by the data platform authentication is sent to the transaction platform, and the transaction platform completes matching analysis of the signature track transformation information and the re-lithography verification information, so as to form complete electronic signature information. The electronic signature is split incompletely, so that the situation that the electronic signature is intercepted and forged can be effectively avoided, the part which is directly sent to the transaction platform by the terminal is sent through different paths, the information safety is further improved, meanwhile, the other part is transferred to the path of the data platform offline at the terminal, on one hand, the information can be safely transmitted by means of a safety protection system of the data platform, on the other hand, the situation that the terminal information is forged is avoided through authentication of the data platform, the transaction platform obtains complete signature information through data matching, and the reliability and accuracy of the electronic signature are greatly improved.
The reliable electronic signature method of the paperless handling system for the second-hand house transaction specifically comprises the following steps:
s1: and sending the electronic signature request information and acquiring signature track conversion information sent by the target terminal through different paths.
The method mainly comprises the step that a transaction platform directly receives real-time signing information from a target terminal. The information is numerical conversion information of real-time signature information formed by a client by using a target terminal.
After the signature track transformation information is obtained by the target terminal, the electronic signature request information is analyzed and extracted in the following analysis mode: a signing board surface is established, signing information on the signing board surface is obtained, and real-time signing information is formed; extracting fonts of the real-time signature information according to the signing direction to form a sequential font set; splitting handwriting of each font in the sequential font set to form a font handwriting set; cutting and extracting random handwriting segments from the font handwriting set corresponding to each font to form a target handwriting cutting segment set; each target handwriting intercepting segment in the target handwriting intercepting segment set is digitized to form a target handwriting track set; and performing code transformation on each target handwriting track in the target handwriting track set to form signature track transformation information.
The signature track conversion information is used as incomplete electronic signature information provided by a terminal client and is directly transmitted to a transaction platform by the terminal. In order to further improve the reliability and the safety of the part of electronic signature information, the randomness of incomplete information is obtained by carrying out font extraction and random splitting on signature information signed by a client in real time. Meanwhile, the information after the numerical value is randomly transmitted through an optional path, so that the safety and reliability of information transmission are further improved.
The method for extracting the fonts of the real-time signature information according to the signing direction to form a sequential font set comprises the following steps: setting a font extraction step length k, sequentially establishing extraction lines perpendicular to the signing direction by taking the font extraction step length k as an interval along the signing direction, and carrying out the following analysis and judgment: when the intersection point of the extraction line and the real-time signature is not more than 1, intercepting the part of the real-time signature before the extraction line to form a font to be judged; comparing the characteristics of the fonts to be judged with those in the font library, if the characteristics of the fonts to be judged are matched with those in the font library, determining the fonts to be judged as corresponding fonts in the font library, and continuously establishing an extraction line according to the font extraction step k to re-extract the fonts to be judged; if the character to be judged is not matched with the character in the character library, establishing an extraction line according to the character extraction step length k, continuously determining the extraction line of which the next intersection point is not more than 1, and taking the part in front of the extraction line as the character to be judged to carry out characteristic matching judgment; repeating the above steps until the real-time signed fonts are extracted, and arranging the identified fonts according to the signing direction to form a sequential font set.
Incomplete information extraction of real-time signing fonts is performed based on signing information of a single font. It is first to confirm and separate the fonts of the real-time signature information. The sign board surface is used for acquiring complete real-time sign information on one hand, and carrying out numerical value based on a unified coordinate system on incomplete sign information extracted randomly later on the other hand, so that a transaction platform can directly re-etch the numerical value information into sign information, and the reference uniformity of data is ensured. The extraction and identification are partially carried out on the extracted fonts through setting the step length form based on the intersection points of the extraction lines and the real-time signature fonts, and it can be understood that basically all the signature fonts have intervals or single continuous strokes among different fonts, so that the complete splitting of the fonts can be ensured by taking no more than one intersection point as a judgment basis of font separation. Meanwhile, the split font part and the font library are subjected to characteristic comparison to accurately judge the integrity of the fonts, the font library can be a characteristic database established based on big data, the font library has strong universality, the font library can also be formed by carrying out daily signature acquisition and extraction on terminal clients, and the accuracy of font variation can be improved.
Splitting each font in the sequential font set to form a font handwriting set, including: combining the strokes of the corresponding fonts in the font library for each font in the sequential font set to extract the stroke segments and the continuous stroke segments of the fonts; and for each font, arranging the stroke segments and the continuous stroke segments according to the writing sequence to form a font handwriting set corresponding to the font.
The invention can understand that each stroke is the most basic single component of the font no matter which font format is by splitting the font based on the strokes, so that the fonts can be more conveniently digitized according to the stroke splitting, of course, the strokes of the non-regular script are connected, but the connected strokes are also in a single component form, so that the connected strokes are split in short time according to the strokes, and further the data information of the connected strokes is obtained. It should be noted that, although the strokes are split for the signatures signed and written in real time for different object objects, the basic strokes still store the characteristic information of the individuation of the object, and the characteristic information can be still included after the numerical analysis, so that the data information of the real-time signed and written fonts is not destroyed.
Cutting and extracting random handwriting segments from the font handwriting set corresponding to each font to form a target handwriting cutting segment set, wherein the method comprises the following steps: setting a random functionAnd randomly extracting the handwriting segments which do not exceed the handwriting extraction limit value from the font handwriting set corresponding to each font according to the random function; performing half-section interception on each extracted handwriting section to form handwriting interception sections; and marking the stroke sequence number of each handwriting interception section under the font to form a target handwriting interception section set.
It can be understood that if all strokes of all fonts signed in real time are digitized and sent to the transaction platform, on one hand, a large amount of function data information is generated, which occupies more resources and is unfavorable for efficient transfer of information, and on the other hand, although the font splitting is performed on the transaction platform that the strokes and the continuous strokes are digitized and sent, the sent information is complete information, and therefore, the risk in terms of safety and reliability still exists. Therefore, the electronic signature information directly sent to the transaction platform by the client terminal adopts a form of sending part information, the reliability and the safety of the sent information are further improved, the complete stroke section and the continuous stroke section are cut and extracted, and meanwhile, when the cut data information is used for comparison verification in the later period, the accuracy of the subsequent information comparison verification is improved due to the fact that the cut data information needs higher matching degree, so that the information authentication of the electronic signature is more reliable. The random function may be set as desired.
Each target handwriting intercepting segment in the target handwriting intercepting segment set is digitized to form a target handwriting track set, and the method comprises the following steps: establishing a signature plane coordinate system on a signature board surface; establishing a track function under a sign plane coordinate system for each handwriting intercepting section in the target handwriting intercepting section set to form a target handwriting track function; the corresponding target handwriting track function is endowed with the stroke sequence number mark corresponding to each handwriting intercepting section in the target handwriting intercepting section set, and target handwriting track function information is formed; and combining the target handwriting track function information corresponding to all the handwriting intercepting sections to form a target handwriting track set.
The method has the advantages that two aspects are needed to be considered for effectively digitizing the intercepted stroke information, on one hand, the digitized data information can completely inherit the characteristics of the stroke data information so as to finish the contrast verification of the data on a transaction platform, and on the other hand, after the digitized data are formed on a client terminal, the transaction platform can accurately convert the digitized data into the stroke information after receiving the digitized information, so that a reference basis for the forward and reverse conversion of the digitized data is needed to be provided, and here, the sign board surface is used as a plane coordinate system basis of function quantization, so that the barrier-free conversion of the data can be really ensured to be realized on both the client terminal and the transaction platform.
Performing code transformation on each target handwriting track in the target handwriting track set to form signature track transformation information, including: performing Fourier transform on each target handwriting track function in the target handwriting track set to form a target transformation track function; the corresponding stroke sequence number marks corresponding to the target handwriting track function in the target handwriting track set are endowed with the corresponding target transformation track function, and target transformation track function information is formed; and combining target transformation track function information corresponding to all target handwriting track functions to form signature track transformation information.
It can be appreciated that the function formed by direct conversion is quite intuitive and can be easily identified as to the type of information, so that further conversion processing is required for the numerical information to improve the confidentiality of the information. The invention adopts Fourier transformation to the numerical function to realize the hiding of the data. Compared with the data encryption form of the electronic certificate, the transformation parameters of the Fourier transformation can be set for different terminals to form personalized transformation information, so that the confidentiality is improved, and meanwhile, the trouble of carrying and using keys by the client terminal is also avoided. Of course, the level of information hiding exhibited by the fourier transform can be determined by the parameters and the level of the transform.
S2: and re-inscribing the signature tracks on the electronic signature board according to the signature track transformation information to form terminal typical signature information.
The signature track is re-carved on the electronic signature board according to the signature track transformation information to form terminal typical signature information, which comprises the following steps: performing inverse Fourier transform on all target transformation track functions in the signature track transformation information to form target track functions; sequentially carrying out repeated engraving on all target track functions on an electronic signature board according to corresponding stroke sequence numbers to form a signature track; and obtaining track information after the re-engraving is completed, and forming typical signature information of the terminal.
The converted signature data information is sent to a transaction platform through different paths, stroke data are displayed according to established inverse Fourier transform parameters aiming at a target terminal, and the stroke data are reproduced on an electronic signature board of the transaction platform to serve as a data base for matching verification. It will be appreciated that the sequence number information assigned facilitates a quick sequence conversion, and may also be used as part of a matching verification parameter, after all, in the case of both identical strokes and overlapping words in the name.
S3: signature authentication information from the data platform is obtained and is matched and compared with typical signature information of the terminal, so that complete electronic signature authentication information is formed.
Signature authentication information from a data platform is acquired and matched and compared with typical signature information of a terminal to form complete electronic signature authentication information, and the method comprises the following steps: performing handwriting matching analysis on real-time tracing signature track information and terminal typical signature information: if the real-time tracing signature track information is matched with the terminal typical signature information, determining that a signature confirmation event is established, and outputting real-time tracing signature track information and face information authentication result data; if the real-time tracing signature track information is not matched with the terminal typical signature information, determining that the signature confirmation event is not established, and outputting prompt information for canceling signature confirmation.
After the transaction platform obtains typical signature information and trace information respectively, the electronic signature board is used as a reference for matching verification, and the correctness of the terminal request is confirmed. And simultaneously, providing the matched corresponding identity information, and further completing the tasks of web signing and the like of the real estate transaction.
The signature authentication information provided by the data platform is formed by providing signature information for performing public verification to the data platform through the target terminal.
Signature authentication information of the data platform is obtained by the following method: acquiring fixed-view signature video information converted by a target terminal offline; carrying out face information identification according to the fixed visual angle signature video information to form face information authentication result data; trace tracing based on signature actions is carried out according to the signature video information with the fixed viewing angle, so that real-time trace tracing signature trace information is formed; and combining the face information authentication result data and the real-time trace back signature track information to form signature authentication information.
The data platform is a data link from the terminal to the data center, which is safer and more efficient than the transaction platform, and the data authentication of the data platform is required to be obtained by considering the property transaction itself, so that video information in the electronic signature information can be verified by the link of the data platform and then provided for the transaction platform after verification, on one hand, the verification flow of property transaction in terms of assets, identities and the like can be simplified, on the other hand, the safe transmission of the electronic signature information and the extraction of customer information can be realized, and further more accurate transaction basic data information can be provided for the transaction platform by the data platform. The data platform performs tracking and tracing on the real-time signature through the video information on one hand, forms basic reference data for comparing typical signature information formed by conversion on the transaction platform, performs identity verification through face recognition on the other hand, and further provides customer identity information related to real estate transaction for the transaction platform.
In summary, the reliable electronic signature method of the paperless system for transacting the second-hand house transaction provided by the embodiment of the invention has the following beneficial effects:
according to the method, request information for acquiring an electronic signature is sent to a client terminal so that a terminal client provides electronic signature demand data, the client carries out incomplete splitting on the electronic signature information after completing submission of the electronic signature information on the terminal, one part of the electronic signature information is subjected to numerical conversion on the terminal to form signature track conversion information which can be sent through different paths and is sent to a transaction platform, the other part of the electronic signature information is sent to the data platform through an authentication path supported by the data platform in an offline manner, signature re-engraving verification based on identity authentication is carried out on the data platform, the client identity information provided by the data platform authentication is sent to the transaction platform together after verification is completed, and the transaction platform completes matching analysis of the signature track conversion information and the re-engraving verification information so as to form complete electronic signature information. The electronic signature is split incompletely, so that the situation that the electronic signature is intercepted and forged can be effectively avoided, the part which is directly sent to the transaction platform by the terminal is sent through different paths, the information safety is further improved, meanwhile, the other part is transferred to the path of the data platform offline at the terminal, on one hand, the information can be safely transmitted by means of a safety protection system of the data platform, on the other hand, the situation that the terminal information is forged is avoided through authentication of the data platform, the transaction platform obtains complete signature information through data matching, and the reliability and accuracy of the electronic signature are greatly improved.
In the present invention, "at least one" means one or more, and "a plurality" means two or more. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
Those of ordinary skill in the art will appreciate that the elements and method steps of the examples described in connection with the embodiments disclosed herein can be implemented as electronic hardware, or as a combination of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (7)
1. A method for electronically signing the authenticity of a paperless transaction system for a second-hand house transaction, comprising:
electronic signature request information is sent, and signature track transformation information sent by a target terminal through different paths is obtained;
the signature track is re-carved on the electronic signature board according to the signature track transformation information to form terminal typical signature information;
signature authentication information from a data platform is obtained and is matched and compared with typical signature information of the terminal to form complete electronic signature authentication information;
the signature track transformation information is analyzed and extracted by the target terminal through the following analysis mode after the electronic signature request information is acquired:
A signing board surface is established, signing information on the signing board surface is obtained, and real-time signing information is formed; extracting fonts of the real-time signature information according to the signing direction to form a sequential font set; splitting handwriting of each font in the sequential font set to form a font handwriting set; cutting and extracting random handwriting segments from the font handwriting set corresponding to each font to form a target handwriting cutting segment set; each target handwriting intercepting segment in the target handwriting intercepting segment set is digitized to form a target handwriting track set; performing code transformation on each target handwriting track in the target handwriting track set to form signature track transformation information;
and re-inscribing a signature track on an electronic signature board according to the signature track transformation information to form terminal typical signature information, wherein the method comprises the following steps:
performing inverse Fourier transform on all target transformation track functions in the signature track transformation information to form target track functions; sequentially carrying out repeated engraving on all the target track functions on the electronic signature board according to the corresponding stroke sequence numbers to form a signature track; acquiring track information after the re-engraving is completed, and forming typical signature information of the terminal;
The target transformation track function is formed by establishing a track function under the sign plane coordinate system for each track intercepting section in the target track intercepting section set to form a target track function and carrying out Fourier transformation on the target track function;
the signature authentication information of the data platform is obtained by the following way:
acquiring fixed-view signature video information converted by a target terminal offline; carrying out face information identification according to the fixed-view signature video information to form face information authentication result data; track tracing based on signature actions is carried out according to the fixed-view signature video information, so that real-time tracing signature track information is formed; and combining the face information authentication result data and the real-time trace back signature track information to form the signature authentication information.
2. The method for reliable electronic signature of a paperless transaction system for a second-hand house transaction according to claim 1, wherein the step of performing font extraction on the real-time signature information according to a signing direction to form a sequential font set comprises:
setting a font extraction step length k, sequentially establishing extraction lines perpendicular to the signing direction by taking the font extraction step length k as an interval along the signing direction, and carrying out the following analysis and judgment:
When the intersection point of the extraction line and the real-time signature is not more than 1, intercepting the part of the real-time signature before the extraction line to form a font to be judged;
comparing the characteristics of the fonts to be judged with those in a font library, if the characteristics of the fonts to be judged are matched with those in the font library, determining the fonts to be judged as corresponding fonts in the font library, and continuously establishing an extraction line according to the font extraction step k to re-extract the fonts to be judged;
if the character to be judged is not matched with the character in the character library, establishing an extraction line according to the character extraction step length k, continuously determining the extraction line of which the next intersection point is not more than 1, and taking the part in front of the extraction line as the character to be judged to carry out character matching judgment;
repeating the font confirmation step until the font extraction of the real-time signature is completed, and arranging the recognized fonts according to the signing direction to form the sequential font set.
3. The method for reliable electronic signature of a paperless system for processing a second-hand house transaction as recited in claim 2, wherein said splitting each font of said set of sequential fonts to form a set of font scripts comprises:
Combining the strokes of the corresponding fonts in the font library for each font in the sequential font set, and extracting a stroke segment and a continuous stroke segment of the font;
and for each font, arranging the stroke segments and the continuous stroke segments according to the writing sequence to form the font handwriting set corresponding to the font.
4. A reliable electronic signature method for a paperless transaction system of a second-hand house transaction as claimed in claim 3, wherein said performing a cut-off extraction of random handwriting segments on said font handwriting set corresponding to each font to form a target handwriting cut-off segment set includes:
setting a random functionAnd randomly extracting handwriting segments which do not exceed the handwriting extraction limit value from the font handwriting set corresponding to each font according to the random function;
performing half-section interception on each extracted handwriting section to form handwriting interception sections;
and marking the stroke sequence numbers of each handwriting interception section under the font to form the target handwriting interception section set.
5. The method of claim 4, wherein digitizing each target handwriting interception segment in the set of target handwriting interception segments to form a set of target handwriting tracks, comprises:
Establishing a signature plane coordinate system on the signature board surface;
establishing a track function under the sign plane coordinate system for each handwriting intercepting segment in the target handwriting intercepting segment set to form a target handwriting track function;
assigning a stroke sequence number mark corresponding to each handwriting intercepting segment in the target handwriting intercepting segment set to a corresponding target handwriting track function to form target handwriting track function information;
and combining the target handwriting track function information corresponding to all the handwriting intercepting sections to form the target handwriting track set.
6. The method of claim 5, wherein said transcoding each target handwriting track in said target handwriting track set to form said signature track transformed information comprises:
performing Fourier transformation on each target handwriting track function in the target handwriting track set to form a target transformation track function;
assigning the corresponding stroke sequence number marks of the target handwriting track function in the target handwriting track set to the corresponding target transformation track function to form target transformation track function information;
And combining the target transformation track function information corresponding to all the target handwriting track functions to form the signature track transformation information.
7. The method for reliable electronic signature of a paperless transaction system as recited in claim 6 wherein said obtaining signature authentication information from a data platform and matching said signature authentication information with said terminal representative signature information to form complete electronic signature authentication information comprises:
performing handwriting matching analysis on the real-time tracing signature track information and the terminal typical signature information:
if the real-time tracing signature track information is matched with the terminal typical signature information, determining that a signature confirmation event is established, and outputting the real-time tracing signature track information and the face information authentication result data;
if the real-time tracing signature track information is not matched with the terminal typical signature information, determining that the signature confirmation event is not established, and outputting prompt information for canceling the signature confirmation.
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