CN111597591A - Hybrid signature method and system - Google Patents
Hybrid signature method and system Download PDFInfo
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- CN111597591A CN111597591A CN202010401663.XA CN202010401663A CN111597591A CN 111597591 A CN111597591 A CN 111597591A CN 202010401663 A CN202010401663 A CN 202010401663A CN 111597591 A CN111597591 A CN 111597591A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
- G06F21/645—Protecting data integrity, e.g. using checksums, certificates or signatures using a third party
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
- G06Q50/18—Legal services; Handling legal documents
Abstract
The invention discloses a mixed signature method and a system, wherein the system comprises the following steps: an internal user side, a third party platform and an external user side; the internal user terminal includes: the system comprises a summary calculation module, a link generation module, a merging module and a first signature module; the third party platform includes: a verification module and a second signature module; the user side includes: the device comprises a preview module and a confirmation module. The hybrid signature method and the hybrid signature system have the advantages that the internal user side, the third-party platform and the external user side are adopted to jointly complete the electronic signature process, and the third-party platform ensures that the contract original to be signed is not tampered. On the basis of reserving a local server of an enterprise, the third-party platform is combined, the third-party platform records key information in the signing process, and the consistency of the file to be signed is verified, so that the signed contract file has strong legal effectiveness.
Description
Technical Field
The invention relates to a hybrid signature method and a hybrid signature system.
Background
The public cloud is an online signing service provided by an electronic signature service provider, and the services can be used by all online users, and refer to a cloud environment shared by a plurality of enterprises and users. However, some large enterprises prefer to build an internal signature system based on a private cloud to interface with an internal informatization system of the enterprise due to security. The private cloud signing service is only available to users within the enterprise or to specific external users associated with the enterprise. Although private cloud deployments have higher security than public clouds, the following drawbacks still exist:
1. the information of the users outside the enterprise, including the certificate seals of the users, also exists on the server inside the enterprise, and the legal effectiveness is weak;
2. signing documents of the enterprise internal users and the associated external users are stored in an enterprise internal server, and the possibility of tampering exists;
3. the certificate storing information in the signing process is initiated and stored by a signature service deployed in an enterprise, and the risk of tampering exists.
Disclosure of Invention
The invention provides a mixed signature method and a system, which adopt the following technical scheme:
a method of hybrid signing comprising the steps of:
the internal user side calculates the abstract information of the contract original to obtain first abstract information and sends the first abstract information to the third-party platform;
the internal user side calculates the abstract information of the contract original to obtain second abstract information and sends the second abstract information to the third-party platform;
the third-party platform verifies whether the first abstract information and the second abstract information are the same and feeds back a verification result to the internal user side;
the internal user side generates a preview link of the same original after receiving the result of passing the verification and sends the preview link to the external user side;
the external user side previews and confirms the contract original;
after receiving the confirmation information of the external user side, the internal user side calculates the abstract information of the contract original to obtain third abstract information, and then sends the third abstract information and the confirmation information to the third-party platform;
the third party platform verifies whether the second abstract information and the third abstract information are the same and whether the verification confirmation information is legal, carries out electronic signature on the third abstract information after the verification is passed to obtain a signature result, and then sends the signature result to the internal user side;
the internal user side combines the signature result to the contract original, calculates the summary information of the combined contract original to obtain fourth summary information and sends the fourth summary information to the third-party platform;
the internal user side calculates the summary information of the combined contract original to obtain fifth summary information and sends the fifth summary information to the third-party platform;
the third-party platform verifies whether the fifth abstract information and the fourth abstract information are the same and feeds back a verification result to the internal user side;
and the internal user side electronically signs the combined contract originals after receiving the verification result, calculates the summary information of the signed contract originals to obtain sixth summary information, and sends the sixth summary information to the third-party platform.
Further, in the process that the third-party platform verifies whether the second abstract information and the third abstract information are the same and whether the verification confirmation information is legal, when the verification result shows that the second abstract information and the third abstract information are not the same or the verification confirmation information is illegal, the third-party platform sends alarm information to an external user side.
A hybrid signature system, comprising:
an internal user side, a third party platform and an external user side;
the internal user terminal, the third party platform and the external user terminal are connected with each other through a network;
the internal user terminal includes: the system comprises a summary calculation module, a link generation module, a merging module and a first signature module;
the abstract calculation module is used for calculating abstract information of the contract original and sending the abstract information to the third-party platform;
the link generation module is used for generating a preview link of the contract original and sending the preview link to an external user side;
the merging module is used for merging the signing result of the third-party platform to the contract original;
the first signature module is used for carrying out electronic signature on contract originals combined with the signature result;
the third party platform includes: a verification module and a second signature module;
the verification module is used for verifying whether the contract original in the signing process is tampered and verifying whether the confirmation information is legal;
the second signature module is used for carrying out electronic signature on the summary information of the same original to obtain a signature result;
the user side includes: the device comprises a preview module and a confirmation module;
the preview module is used for processing the preview link so as to allow an external user to preview the contract original;
the confirmation module is used for sending confirmation information to the internal user terminal.
Further, the abstract calculation module calculates abstract information of the contract original to obtain first abstract information and sends the first abstract information to a third-party platform;
the abstract calculation module calculates abstract information of the contract original to obtain second abstract information and sends the second abstract information to a third-party platform;
the verification module verifies whether the first abstract information and the second abstract information are the same and feeds back a verification result to the internal user side;
after receiving the result of passing the verification, the internal user side generates a preview link of the contract original by the link generation module and sends the preview link to the external user side;
the preview module displays the contract original after processing the preview link;
the confirmation module sends confirmation information to the internal user side after receiving the confirmation operation of the external user;
after the internal user side receives the confirmation information, the abstract calculation module calculates the abstract information of the contract original to obtain third abstract information, and then the third abstract information and the confirmation information are sent to a third-party platform;
the verification module verifies whether the second abstract information and the third abstract information are the same and whether the verification confirmation information is legal, and after the verification is passed, the verification module calls the second signature module to electronically sign the third abstract information to obtain a signature result and sends the signature result to an internal user side;
the combination module combines the signature result to the contract original, and the abstract calculation module calculates the abstract information of the combined contract original to obtain fourth abstract information and sends the fourth abstract information to the third-party platform;
the abstract calculation module calculates the abstract information of the combined contract original to obtain fifth abstract information and sends the fifth abstract information to a third-party platform;
the verification module verifies whether the fifth abstract information and the fourth abstract information are the same and feeds back a verification result to the internal user side;
after the internal user side receives the result that the verification is passed, the first signature module electronically signs the combined contract originals, and the abstract calculation module calculates the abstract information of the signed contract originals to obtain sixth abstract information and sends the sixth abstract information to the third-party platform.
Further, the verification module includes: a first verification sub-module and a second verification sub-module;
the first verification sub-module is used for verifying whether the contract original in the signing process is tampered;
the second verification submodule is used for verifying whether the confirmation information is legal or not.
Furthermore, the internal user side also comprises a first data storage module;
the first data storage module is used for storing contract originals.
Further, the third party platform also comprises a second data storage module;
the second data storage module is used for storing the first abstract information, the second abstract information, the third abstract information, the fourth abstract information, the fifth abstract information, the sixth abstract information and the signature result.
Further, the third-party platform also comprises an alarm module;
the alarm module is used for sending alarm information to an external user side.
Further, when the verification module verifies that the second summary information and the third summary information are different or verifies that the confirmation information is illegal, alarm information is sent to the external user side.
The hybrid signature method and the hybrid signature system have the advantages that the internal user side, the third-party platform and the external user side are adopted to jointly complete the electronic signature process, and the third-party platform ensures that the contract original to be signed is not tampered. On the basis of reserving a local server of an enterprise, the third-party platform is combined, the third-party platform records key information in the signing process, and the consistency of the file to be signed is verified, so that the signed contract file has strong legal effectiveness.
Drawings
FIG. 1 is a flow chart of a hybrid signature method of the present invention;
FIG. 2 is a schematic diagram of a hybrid signature system of the present invention.
The system comprises an internal user terminal 10, a summary calculation module 101, a link generation module 102, a merging module 103, a first signature module 104, a first data storage module 105, a third-party platform 20, a verification module 201, a first verification sub-module 203, a second verification sub-module 204, a second signature module 202, a second data storage module 205, an alarm module 206, an external user terminal 30, a preview module 301 and a confirmation module 302.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
As shown in fig. 1, a hybrid signature method includes the following steps:
s1: and the internal user side calculates the abstract information of the contract original to obtain first abstract information and sends the first abstract information to the third-party platform.
The internal user side is used for internal personnel of a company to perform related operations, before the contract original is required to be signed, the first summary information of the contract original is calculated and sent to the third-party platform, and the third-party platform stores the first summary information.
S2: and the internal user side calculates the abstract information of the contract original to obtain second abstract information and sends the second abstract information to the third-party platform.
In step S1, the third-party platform stores the first digest information of the original contract original, and when it is necessary to initiate contract signing for the contract original, the internal user side calculates the digest information of the contract original again to obtain the second digest information, and sends the second digest information to the third-party platform for verification by the third-party platform.
S3: and the third-party platform verifies whether the first abstract information and the second abstract information are the same and feeds back a verification result to the internal user side.
And the third party platform compares the first abstract information with the second abstract information after receiving the second abstract information, judges whether the first abstract information and the second abstract information are the same or not, and sends a comparison result back to the internal user side. Specifically, when the result of comparing the first abstract information with the second abstract information by the third-party platform is that the first abstract information is the same as the second abstract information, it indicates that the original contract is not tampered. On the contrary, when the result of comparing the first abstract information with the second abstract information by the third-party platform is that the first abstract information is different from the second abstract information, the contract original is indicated to be tampered.
S4: and the internal user side generates a preview link of the same original after receiving the verification result and sends the preview link to the external user side.
And when the internal user side receives the result that the first abstract information is the same as the second abstract information, the internal user side generates a preview connection of the original contract and sends the preview connection to the external user side.
S5: the external user side previews and confirms the contract original.
And the external user side is used for the external user to perform related operations in the signing process. After the external user side receives the preview connection, the external user can open the preview link to preview the contract original, and when the external user views the contract original and considers that the content of the contract original has no problem, the external user side sends confirmation information to the internal user side.
S6: and after receiving the confirmation information of the external user side, the internal user side calculates the abstract information of the contract original to obtain third abstract information, and then sends the third abstract information and the confirmation information to the third-party platform.
And after receiving the confirmation information sent by the external user, the internal user calculates the abstract information of the contract original to obtain third abstract information, and sends the third abstract information and the confirmation information to the third-party platform for the third-party platform to verify.
S7: and the third party platform verifies whether the second abstract information and the third abstract information are the same and whether the verification confirmation information is legal, carries out electronic signature on the third abstract information after the verification is passed to obtain a signature result, and then sends the signature result to the internal user side.
And the third-party platform simultaneously verifies the third abstract information and the confirmation information. Specifically, the third-party platform verifies whether the second summary information and the third summary information are the same, and simultaneously verifies whether the confirmation information is legal. When the second abstract information is the same as the third abstract information and the verification result of the confirmation information is legal, the contract original is not tampered and confirmed by the external user, and at the moment, the third-party platform electronically signs the third abstract information through the personal signature information reserved in the third-party platform by the external user to obtain a signature result and sends the signature result to the internal user side.
S8: and the internal user side combines the signature result into the contract original, calculates the summary information of the combined contract original to obtain fourth summary information and sends the fourth summary information to the third-party platform.
And after receiving the signature result, the internal user side merges the signature result into the contract original, recalculates the summary information of the merged contract original to obtain fourth summary information, and then sends the fourth summary information to the third-party platform to be stored in the third-party platform.
S9: and the internal user side calculates the summary information of the combined contract original to obtain fifth summary information and sends the fifth summary information to the third-party platform.
And before the internal user decides to perform electronic signature on the combined contract originals, recalculating the summary information of the combined contract originals to obtain fifth summary information and sending the fifth summary information to a third-party platform for verification.
S10: and the third-party platform verifies whether the fifth abstract information and the fourth abstract information are the same and feeds back a verification result to the internal user side.
And the third party platform compares the fifth abstract information with the fourth abstract information, judges whether the fifth abstract information and the fourth abstract information are the same, and only if the fifth abstract information and the fourth abstract information are the same, the third party platform can indicate that the combined contract original is not tampered at the internal user side.
S11: and the internal user side electronically signs the combined contract originals after receiving the verification result, calculates the summary information of the signed contract originals to obtain sixth summary information, and sends the sixth summary information to the third-party platform.
When the internal user side receives the verification result of the third-party platform, the verification result shows that the fifth abstract information and the fourth abstract information are the same, the internal user side electronically signs the combined contract originals through the signature information of the internal user stored in the internal user side, calculates the digest information of the signed contract originals after the electronic signature to obtain sixth abstract information, and finally sends the sixth abstract information to the third-party platform for storage, wherein the third-party platform stores the digest information of the contract originals of each node in the signing process.
As a preferred embodiment, in the process of verifying whether the second digest information and the third digest information are the same and verifying whether the confirmation information is legal by the third-party platform, when the verification result indicates that the second digest information and the third digest information are not the same or that the confirmation information is illegal, the third-party platform sends alarm information to the external user side.
As shown in fig. 2, the present invention also discloses a hybrid signature system, which includes: internal user terminals 10, third party platforms 20 and external user terminals 30. The internal user terminal 10, the third party platform 20 and the external user terminal 30 are connected to each other through a network. The internal user terminal 10 includes: a summary calculation module 101, a link generation module 102, a merging module 103, and a first signature module 104. The third party platform 20 includes: a verification module 201 and a second signature module 202. The external user terminal 30 includes: a preview module 301 and a confirmation module 302. Specifically, the abstract calculation module 101 is configured to calculate abstract information of the original contract and send the abstract information to the third-party platform 20. The link generating module 102 is configured to generate a preview link of the original contract and send the preview link to the external user terminal 30. The merging module 103 is configured to merge the signature result of the third party platform 20 into the contract original. The first signing module 104 is configured to electronically sign contract originals that incorporate a signing result. The verification module 201 is used for verifying whether the contract original in the signing process is tampered and for verifying whether the confirmation information is legal. The second signing module 202 is configured to perform electronic signing on the digest information of the identical original to obtain a signing result. The preview module 301 is used to process the preview link for an external user to preview the contract original. The acknowledgement module 302 is used to send acknowledgement information to the internal user terminal 10.
Specifically, before electronic signature of the contract original, the internal user terminal 10 calculates the summary information of the contract original through the summary calculation module 101 to obtain the first summary information and sends the first summary information to the third party platform 20, and the third party platform 30 stores the first summary information. When contract signing needs to be initiated for the contract original, the internal user terminal 10 calculates the digest information of the contract original again through the digest calculation module 101 to obtain second digest information, and sends the second digest information to the third party platform 20. The verification module 201 verifies whether the first summary information and the second summary information are the same and feeds back a verification result to the internal user terminal 10. The internal user terminal 10, after receiving the result of the verification, generates a preview link of the original contract through the link generation module 102, and sends the preview link to the external user terminal 30. After the external user terminal 30 receives the preview link, the preview module 301 processes the preview link to display the original contract. The external user views the contract original and confirms the contract original through the confirmation module 302. the confirmation module 302 sends confirmation information to the internal user terminal 10 after receiving the confirmation operation of the external user. After receiving the confirmation information, the internal user 10 calculates the digest information of the contract original to obtain third digest information, and then sends the third digest information and the confirmation information to the third party platform 20. The verification module 201 verifies whether the second summary information and the third summary information are the same and whether the verification confirmation information is legal, and after the verification is passed, the verification module 201 calls the second signature module 202 to electronically sign the third summary information to obtain a signature result and sends the signature result to the internal user terminal 10. The merging module 103 merges the signature result into the contract original, and the abstract calculation module 101 calculates the abstract information of the merged contract original to obtain fourth abstract information and sends the fourth abstract information to the third party platform 20. The abstract calculation module 101 calculates the abstract information of the combined contract original to obtain fifth abstract information, and sends the fifth abstract information to the third party platform 20. The verification module 201 verifies whether the fifth summary information and the fourth summary information are the same and feeds back the verification result to the internal user terminal 10. After the internal user 10 receives the result of the verification, the first signing module 104 electronically signs the combined contract originals, and the summary calculation module 101 calculates the summary information of the signed contract originals to obtain sixth summary information and sends the sixth summary information to the third party platform 20.
As a preferred embodiment, the verification module 201 includes: a first verification sub-module 203 and a second verification sub-module 204.
Specifically, the first verification sub-module 203 is used to verify whether the contract original in the signing process is tampered. The second verification sub-module 204 is used for verifying whether the confirmation information is legal.
As a preferred embodiment, the internal user terminal 10 further comprises a first data storage module 105.
The first data storage module 105 is used to store contract originals.
In a preferred embodiment, the third party platform 20 further comprises a second data storage module 205.
The second data storage module 205 is configured to store the first summary information, the second summary information, the third summary information, the fourth summary information, the fifth summary information, the sixth summary information, and the signature result.
In a preferred embodiment, the third party platform 20 further includes an alarm module 206.
The alarm module 206 is used for sending alarm information to the external user terminal 30. When the verification module 201 verifies that the second summary information and the third summary information are different or the verification confirmation information is not legal, alarm information is sent to the external user terminal 30.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (9)
1. A method of hybrid signing, comprising the steps of:
the method comprises the steps that an internal user side calculates summary information of a contract original to obtain first summary information and sends the first summary information to a third-party platform;
the internal user side calculates the abstract information of the contract original to obtain second abstract information and sends the second abstract information to the third-party platform;
the third-party platform verifies whether the first abstract information and the second abstract information are the same and feeds back a verification result to the internal user side;
the internal user side generates a preview link of the contract original after receiving the result of passing the verification and sends the preview link to the external user side;
the external user side previews and confirms the contract original;
after receiving the confirmation information of the external user side, the internal user side calculates the abstract information of the contract original to obtain third abstract information, and then sends the third abstract information and the confirmation information to the third-party platform;
the third party platform verifies whether the second abstract information and the third abstract information are the same and whether the confirmation information is legal, carries out electronic signature on the third abstract information after the verification is passed to obtain a signature result, and then sends the signature result to the internal user side;
the internal user side combines the signature result with the contract original, calculates the combined abstract information of the contract original to obtain fourth abstract information and sends the fourth abstract information to the third-party platform;
the internal user side calculates the combined abstract information of the contract original to obtain fifth abstract information and sends the fifth abstract information to the third-party platform;
the third party platform verifies whether the fifth abstract information and the fourth abstract information are the same and feeds back a verification result to the internal user side;
and the internal user side electronically signs the combined contract original after receiving the verification result, calculates the summary information of the signed contract original to obtain sixth summary information, and sends the sixth summary information to the third-party platform.
2. The hybrid signing method of claim 1,
and in the process that the third-party platform verifies whether the second abstract information and the third abstract information are the same and verifies whether the confirmation information is legal, when a verification result shows that the second abstract information and the third abstract information are different or the confirmation information is illegal, the third-party platform sends alarm information to the external user side.
3. A hybrid signature system, comprising:
an internal user side, a third party platform and an external user side;
the internal user terminal, the third party platform and the external user terminal are connected with each other through a network;
the internal user terminal includes: the system comprises a summary calculation module, a link generation module, a merging module and a first signature module;
the abstract calculation module is used for calculating abstract information of the contract original and sending the abstract information to the third-party platform;
the link generation module is used for generating a preview link of the contract original and sending the preview link to the external user side;
the merging module is used for merging the signature result of the third-party platform to the contract original;
the first signature module is used for electronically signing the contract original paper combined with the signature result;
the third party platform includes: a verification module and a second signature module;
the verification module is used for verifying whether the contract original is tampered in the signing process and verifying whether the confirmation information is legal;
the second signature module is used for carrying out electronic signature on the abstract information of the contract original to obtain a signature result;
the external user terminal includes: the device comprises a preview module and a confirmation module;
the preview module is used for processing the preview link to allow an external user to preview the contract original;
the confirmation module is used for sending the confirmation information to the internal user side.
4. The hybrid signature system of claim 3,
the abstract calculation module calculates abstract information of the contract original to obtain first abstract information and sends the first abstract information to the third-party platform;
the abstract calculation module calculates abstract information of the contract original to obtain second abstract information and sends the second abstract information to the third-party platform;
the verification module verifies whether the first abstract information and the second abstract information are the same and feeds back a verification result to the internal user side;
after receiving the result of passing the verification, the internal user side generates the preview link of the contract original through the link generation module and sends the preview link to the external user side;
the preview module displays the contract original after processing the preview link;
the confirmation module sends the confirmation information to the internal user side after receiving the confirmation operation of the external user;
after the internal user side receives the confirmation information, the abstract calculation module calculates the abstract information of the contract original to obtain third abstract information, and then the third abstract information and the confirmation information are sent to the third-party platform;
the verification module verifies whether the second abstract information and the third abstract information are the same and whether the confirmation information is legal, and after the verification is passed, the verification module calls the second signature module to electronically sign the third abstract information to obtain a signature result and sends the signature result to the internal user side;
the merging module merges the signature result to the contract original, and the abstract calculation module calculates the abstract information of the merged contract original to obtain fourth abstract information and sends the fourth abstract information to the third-party platform;
the abstract calculation module calculates the merged abstract information of the contract original to obtain fifth abstract information and sends the fifth abstract information to the third-party platform;
the verification module verifies whether the fifth abstract information and the fourth abstract information are the same and feeds back a verification result to the internal user side;
after the internal user side receives the result that the verification is passed, the first signature module electronically signs the combined contract originals, and the abstract calculation module calculates the abstract information of the contract originals after signature to obtain sixth abstract information and sends the sixth abstract information to the third-party platform.
5. The hybrid signature system of claim 4,
the authentication module includes: a first verification sub-module and a second verification sub-module;
the first verification sub-module is used for verifying whether the contract original in the signing process is tampered;
the second verification submodule is used for verifying whether the confirmation information is legal or not.
6. The hybrid signature system of claim 4,
the internal user side also comprises a first data storage module;
the first data storage module is used for storing the contract original.
7. The hybrid signature system of claim 4,
the third party platform further comprises a second data storage module;
the second data storage module is configured to store the first digest information, the second digest information, the third digest information, the fourth digest information, the fifth digest information, the sixth digest information, and the signature result.
8. The hybrid signature system of claim 4,
the third party platform further comprises an alarm module;
the alarm module is used for sending alarm information to the external user side.
9. The hybrid signature system of claim 8,
and when the verification module verifies that the second abstract information is different from the third abstract information or verifies that the confirmation information is illegal, the alarm information is sent to the external user side.
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