CN110474778B - Electronic contract signing method and system - Google Patents
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- CN110474778B CN110474778B CN201910733614.3A CN201910733614A CN110474778B CN 110474778 B CN110474778 B CN 110474778B CN 201910733614 A CN201910733614 A CN 201910733614A CN 110474778 B CN110474778 B CN 110474778B
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- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3263—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
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Abstract
The invention discloses an electronic contract signing method and system, which are used for acquiring a digital certificate corresponding to a Certificate Authority (CA) in a Ukey by establishing a corresponding relation between the Ukey and the CA of an organization issuing the digital certificate, and realizing signing by using the digital certificate. According to the electronic contract signing method and system, the corresponding relation between the Ukeys and the CA is established, the integration of the CA is realized, different digital certificates of the CA can be read at the same time, when the contract signing is carried out by using the digital certificates, only the digital certificates of various types need to be freely switched, a plurality of signing tool terminals do not need to be installed and opened, and the contract signing operation process is simplified.
Description
Technical Field
The invention relates to the field of information security, in particular to an electronic contract signing method and system.
Background
The authority issuing the digital certificate, called CA, is the authority responsible for issuing and managing the digital certificate and is responsible for the validity check of the public key in the public key hierarchy as a trusted third party in e-commerce transactions.
UKey is a small storage device which is directly connected with a computer through a universal serial bus interface USB, has a password verification function and is reliable and high-speed.
In the prior art, when a digital certificate of a CA (certificate Authority) is used for signing a contract online, a signing tool corresponding to the CA must be installed in advance to read the digital certificate for signing, if a plurality of certificates are required to be used, the signing tools must be installed, a user needs to read all hardware certificates owned by the user in advance and upload the hardware certificates to a server before selecting a plurality of certificates for signing, or the signing tools are opened for a plurality of times separately, so that a plurality of CA certificates cannot be freely switched. When an enterprise or an individual needs to sign a plurality of certificates on one contract, the signing process is equivalent to signing a plurality of contracts, and the operation process is complicated.
Disclosure of Invention
The invention aims to provide an electronic contract signing method and system, which solve the technical problem of complicated operation process when multiple certificates are used for signing contracts.
In order to achieve the purpose, the invention provides the following scheme:
an electronic contract signing method, comprising:
establishing a corresponding relation between Ukey and a CA (certificate authority) issuing a digital certificate;
and acquiring the digital certificate of the Ukey, and signing the electronic contract according to the digital certificate.
Optionally, the establishing a correspondence between the Ukey and the authority CA that issues the digital certificate specifically includes:
acquiring a plurality of information handles of universal serial bus interfaces (USB) corresponding to the Ukey by utilizing a SetupDeGetClassDevs function;
acquiring USB address information corresponding to the information handle by utilizing a SetupDegGetDeviceRegistryProperty function according to the information handle;
establishing a connection relation with the USB by utilizing DeviceIoControl according to the USB address information corresponding to the information handle, and then obtaining supplier identification information VID and product identification code PID of the USB;
and determining the corresponding relation between Ukey and CA according to the VID and the PID.
Optionally, the acquiring the digital certificate of the Ukey, and signing the electronic contract according to the digital certificate specifically includes determining a Ukey implementation manner according to a corresponding relationship between the Ukey and the CA, and then invoking a corresponding execution program: if the Ukey implementation mode is the implementation file of the PKCS11, calling a first execution program; and if the Ukey implementation mode is an OCX interface document, calling a second execution program to sign the electronic contract.
Optionally, the first execution program includes:
acquiring a drive file of the Ukey, and establishing communication connection with the Ukey;
loading the Ukey protocol implementation file;
acquiring a function address in the protocol implementation file through GetProcAddress;
acquiring a function list according to the function address;
according to the function list, initializing the protocol implementation file by utilizing a C _ Initialize function;
acquiring a slot list of the protocol implementation file by using a C _ GetSlotList function;
according to the slot list, a session is opened by utilizing a C _ OpenSession function, and logical connection between tokens is established;
acquiring a user PIN code of the Ukey and a user type corresponding to the PIN code;
initializing a signature according to the user name type and the user PIN code, and performing signature operation;
the second execution program includes:
acquiring a drive file of the Ukey, and establishing communication connection with the Ukey;
acquiring identification information of the OCX file of the Ukey;
acquiring a certificate object of the OCX file according to the identification information;
initializing a signature operation according to the certificate object;
and accessing the signature function to perform signature operation.
An electronic contract signing system, the electronic contract signing system comprising:
the corresponding relation determining unit is used for establishing the corresponding relation between the Ukey and a CA (organization CA) issuing the digital certificate;
and the signing unit is used for acquiring the Ukey digital certificate and signing the electronic contract according to the digital certificate.
Optionally, the correspondence determining unit specifically includes:
the information handle acquisition module is used for acquiring a plurality of information handles of the universal serial bus interface USB corresponding to the Ukey by utilizing a SetupDegGetClassDevs function;
an address information acquisition module, configured to acquire, according to the information handle, USB address information corresponding to the information handle by using a setupdigitdeviceregistratiyperproperty function;
a supplier information acquisition module, configured to establish a connection relationship with the USB by using DeviceIoControl according to the USB address information corresponding to the information handle, and then acquire supplier identification information VID and product identification code PID of the USB;
and the corresponding relation determining module is used for determining the corresponding relation between the Ukey and the CA according to the VID and the PID.
Optionally, the signing unit specifically includes a Ukey implementation determination module, a first execution module, and a second execution module;
the Ukey implementation mode determining module is used for determining the Ukey implementation mode according to the corresponding relation between the Ukey and the CA;
the first execution module is used for calling a first execution program to sign the electronic contract when the Ukey implementation mode is the implementation file of the PKCS 11;
and the second execution module is used for calling a second execution program to sign the electronic contract when the Ukey implementation mode is an OCX interface document.
Optionally, the first execution module includes:
the drive file acquisition submodule is used for acquiring the drive file of the Ukey and establishing communication connection with the Ukey;
the protocol implementation file loading submodule is used for loading the Ukey protocol implementation file;
the function address acquisition submodule is used for acquiring a function address in the protocol implementation file through GetProcAddress;
the function list obtaining submodule is used for obtaining a function list according to the function address;
the protocol implementation file initialization submodule is used for initializing the protocol implementation file by utilizing a C _ Initialize function according to the function list;
the slot list acquisition submodule is used for acquiring a slot list of the protocol implementation file by using a C _ GetSlotList function;
the logic connection establishment submodule between the tokens is used for opening a session by utilizing a C _ OpenSession function according to the slot list and establishing logic connection between the tokens;
the user PIN code and user type acquisition sub-module is used for acquiring the user PIN code of the Ukey and the user type corresponding to the PIN code;
and the first signature sub-module is used for initializing signature according to the user name type and the user PIN code and carrying out signature operation.
Optionally, the second execution module includes:
the communication connection establishing submodule is used for acquiring the drive file of the Ukey and establishing communication connection with the Ukey;
the identification information acquisition submodule is used for acquiring the identification information of the OCX file of the Ukey;
the certificate object acquisition submodule is used for acquiring the certificate object of the OCX file according to the identification information;
the signature initialization submodule is used for initializing signature operation according to the certificate object;
and the second signature submodule is used for accessing the signature function and carrying out signature operation.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: the invention establishes the corresponding relation between a plurality of Ukeys and the CA of the organization issuing the digital certificate to acquire the digital certificate corresponding to the CA in the Ukeys, realizes the fusion of a plurality of CAs, can switch the digital certificate by self when signing the contract by using a plurality of digital certificates, simplifies the operation process of signing the contract, realizes the on-line quick signing and approval, and thus improves the operation efficiency of enterprises.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic flow chart of an electronic contract signing method according to the present invention;
fig. 2 is a block diagram of the electronic contract signing system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an electronic contract signing method and system, which simplify the operation process of signing contracts by using a plurality of digital certificates.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the electronic contract signing method of the present invention includes:
step 101: and establishing a corresponding relation between Ukey and the CA issuing the digital certificate.
Through establishing the corresponding relation of a plurality of Ukeys and CA in this application, fuse a plurality of CA, can read the hardware certificate of many CA simultaneously, when using different digital certificate, only need carry on the switching of certificate can, need not install the signing instrument that CA corresponds respectively, simplify signing operation process.
In the application, the correspondence between the Ukey and the CA is established through the following specific steps:
and acquiring a plurality of information handles of the universal serial bus interface USB corresponding to the Ukey by using a SetupDeGetClassDevs function.
And acquiring the USB address information corresponding to the information handle by utilizing a SetupDegGetDeviceRegistrypProperty function according to the information handle.
And establishing a connection relation with the USB by utilizing DeviceIoControl according to the address information of the USB corresponding to the information handle, and then obtaining supplier identification information VID and a product identification code PID of the USB.
And determining the corresponding relation between Ukey and CA according to the VID and the PID.
Step 102: and acquiring the Ukey digital certificate, and signing the electronic contract according to the digital certificate.
Ukeys all conform to PKCS11, but different Ukeys adopt different implementation methods when re-implementing the standard. Aiming at different implementation methods, the electronic contract signing method of the application needs to determine the Ukey implementation mode according to the corresponding relation between the Ukey and the CA, and further calls a corresponding execution program: and if the Ukey implementation mode is the implementation file of the PKCS11, calling a first execution program. And if the Ukey implementation mode is an OCX interface document, calling a second execution program to sign the electronic contract.
The first execution program includes:
and acquiring a drive file of the Ukey, and establishing communication connection with the Ukey.
And loading the Ukey protocol implementation file.
Function addresses in the implementation file are obtained through a GetProcAddress acquisition protocol.
And acquiring a function list according to the function address.
And initializing the protocol by utilizing the C _ Initialize function according to the function list.
And the acquisition protocol of the C _ GetSlotList function is utilized to realize the slot list of the file.
And opening a session by using a C _ OpenSession function according to the slot list, and establishing logical connection between the tokens.
And acquiring the user PIN code of the Ukey and the user type corresponding to the PIN code.
And initializing signature according to the user name type and the user PIN code, and performing signature operation.
The second execution program includes:
and acquiring a drive file of the Ukey, and establishing communication connection with the Ukey.
And acquiring the identification information of the OCX file of Ukey.
And acquiring the certificate object of the OCX file according to the identification information.
A signing operation is initiated based on the certificate object.
And accessing the signature function to perform signature operation.
The application also discloses an electronic contract signing system for specifically implementing the method, and the electronic contract signing system comprises: a correspondence determining unit 201 and a signing unit 202.
The correspondence relation determining unit 201 is configured to establish a correspondence relation between Ukey and an authority CA that issues a digital certificate.
The correspondence determining unit 201 specifically includes: the system comprises an information handle acquisition module, an address information acquisition module, a supplier information acquisition module and a corresponding relation determination module.
The information handle acquisition module is used for acquiring the information handles of the universal serial bus interfaces USB corresponding to the Ukeys by utilizing a SetupDegGetClassDevs function.
The address information acquisition module is used for acquiring the USB address information corresponding to the information handle by utilizing a SetupDetDeviceRegistryperpropety function according to the information handle.
The supplier information acquisition module is used for establishing a connection relation with the USB by utilizing the DeviceIoControl according to the address information of the USB corresponding to the information handle, and then acquiring supplier identification information VID and product identification code PID of the USB.
And the corresponding relation determining module is used for determining the corresponding relation between the Ukey and the CA according to the VID and the PID.
The signing unit 202 is configured to obtain a digital certificate of the Ukey, and sign the electronic contract according to the digital certificate.
Ukeys all conform to PKCS11, but different Ukeys adopt different implementation methods when re-implementing the standard. Aiming at different implementation methods, the electronic contract signing system of the application needs to sign the electronic contract by adopting a corresponding executive program.
The signing unit 202 specifically includes a Ukey implementation determination module, a first execution module, and a second execution module.
And the Ukey implementation mode determining module is used for determining the Ukey implementation mode according to the corresponding relation between the Ukey and the CA.
And the first execution module is used for calling the first execution program to sign the electronic contract when the Ukey implementation mode is the implementation file of the PKCS 11.
And the second execution module is used for calling a second execution program to sign the electronic contract when the Ukey implementation mode is the OCX interface document.
The first execution module specifically includes:
and the drive file acquisition submodule is used for acquiring the drive file of the Ukey and establishing communication connection with the Ukey.
And the protocol implementation file loading submodule is used for loading the Ukey protocol implementation file.
And the function address acquisition submodule is used for acquiring the function address in the file by the GetProcAddress acquisition protocol.
And the function list obtaining submodule is used for obtaining the function list according to the function address.
And the protocol implementation file initialization submodule is used for initializing the protocol implementation file by utilizing the C _ Initialize function according to the function list.
And the slot list acquisition submodule is used for realizing the slot list of the file by utilizing a C _ GetSlotList function acquisition protocol.
And the logic connection establishment submodule between the tokens is used for opening a session by utilizing a C _ OpenSession function according to the slot list and establishing the logic connection between the tokens.
And the user PIN code and user type acquisition sub-module is used for acquiring the user PIN code of the Ukey and the user type corresponding to the PIN code.
And the first signature submodule is used for initializing signature according to the user name type and the user PIN code and carrying out signature operation.
The second execution module specifically includes:
and the communication connection establishing submodule is used for acquiring the drive file of the Ukey and establishing communication connection with the Ukey.
And the identification information acquisition submodule is used for acquiring the identification information of the OCX file of the Ukey.
And the certificate object acquisition submodule is used for acquiring the certificate object of the OCX file according to the identification information.
And the signature initialization submodule is used for initializing signature operation according to the certificate object.
And the second signature submodule is used for accessing the signature function and carrying out signature operation.
The electronic contract signing method and the electronic contract signing system read the hardware certificates of the multiple CA simultaneously, thereby realizing the function of randomly switching and simultaneously signing the multiple CA certificates on line. The method reduces the number of CA signing tools needing to be installed, can realize the switching of the multiple CA certificates at any time for online signing without installing and opening multiple signing tool terminals, improves the operation convenience of users, realizes online rapid signing and approval, and further improves the operation efficiency of enterprises.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (4)
1. An electronic contract signing method, characterized by comprising:
establishing a corresponding relation between Ukey and a CA (certificate authority) issuing a digital certificate;
acquiring the digital certificate of the Ukey, and signing the electronic contract according to the digital certificate;
signing the electronic contract according to the digital certificate, specifically comprising determining a Ukey implementation mode according to the corresponding relation between the Ukey and the CA, and further calling a corresponding execution program: if the Ukey implementation mode is the implementation file of the PKCS11, calling a first execution program; if the Ukey implementation mode is an OCX interface document, calling a second execution program to sign the electronic contract;
the first execution program includes:
acquiring a drive file of the Ukey, and establishing communication connection with the Ukey;
loading the Ukey protocol implementation file;
acquiring a function address in the protocol implementation file through GetProcAddress;
acquiring a function list according to the function address;
according to the function list, initializing the protocol implementation file by utilizing a C _ Initialize function;
acquiring a slot list of the protocol implementation file by using a C _ GetSlotList function;
according to the slot list, a session is opened by utilizing a C _ OpenSession function, and logical connection between tokens is established;
acquiring a user PIN code of the Ukey and a user type corresponding to the PIN code;
initializing a signature according to the user type and the user PIN code, and performing signature operation;
the second execution program includes:
acquiring a drive file of the Ukey, and establishing communication connection with the Ukey;
acquiring identification information of the OCX file of the Ukey;
acquiring a certificate object of the OCX file according to the identification information;
initializing a signature operation according to the certificate object;
and accessing the signature function to perform signature operation.
2. The electronic contract signing method according to claim 1, wherein said establishing correspondence between Ukey and the organization CA issuing the digital certificate specifically comprises:
acquiring a plurality of information handles of universal serial bus interfaces (USB) corresponding to the Ukey by utilizing a SetupDeGetClassDevs function;
acquiring USB address information corresponding to the information handle by utilizing a SetupDegGetDeviceRegistryProperty function according to the information handle;
establishing a connection relation with the USB by utilizing DeviceIoControl according to the USB address information corresponding to the information handle, and then obtaining supplier identification information VID and product identification code PID of the USB;
and determining the corresponding relation between Ukey and CA according to the VID and the PID.
3. An electronic contract signing system, comprising:
the corresponding relation determining unit is used for establishing the corresponding relation between the Ukey and a CA (organization CA) issuing the digital certificate;
the signing unit is used for acquiring the Ukey digital certificate and signing the electronic contract according to the digital certificate;
the signing unit specifically comprises a Ukey implementation mode determining module, a first execution module and a second execution module;
the Ukey implementation mode determining module is used for determining the Ukey implementation mode according to the corresponding relation between the Ukey and the CA;
the first execution module is used for calling a first execution program to sign the electronic contract when the Ukey implementation mode is the implementation file of the PKCS 11;
the second execution module is used for calling a second execution program to sign the electronic contract when the Ukey implementation mode is an OCX interface document;
the first execution module includes:
the drive file acquisition submodule is used for acquiring the drive file of the Ukey and establishing communication connection with the Ukey;
the protocol implementation file loading submodule is used for loading the Ukey protocol implementation file;
the function address acquisition submodule is used for acquiring a function address in the protocol implementation file through GetProcAddress;
the function list obtaining submodule is used for obtaining a function list according to the function address;
the protocol implementation file initialization submodule is used for initializing the protocol implementation file by utilizing a C _ Initialize function according to the function list;
the slot list acquisition submodule is used for acquiring a slot list of the protocol implementation file by using a C _ GetSlotList function;
the logic connection establishment submodule between the tokens is used for opening a session by utilizing a C _ OpenSession function according to the slot list and establishing logic connection between the tokens;
the user PIN code and user type acquisition sub-module is used for acquiring the user PIN code of the Ukey and the user type corresponding to the PIN code;
the first signature submodule is used for initializing a signature according to the user type and the user PIN code and carrying out signature operation;
the second execution module includes:
the communication connection establishing submodule is used for acquiring the drive file of the Ukey and establishing communication connection with the Ukey;
the identification information acquisition submodule is used for acquiring the identification information of the OCX file of the Ukey;
the certificate object acquisition submodule is used for acquiring the certificate object of the OCX file according to the identification information;
the signature initialization submodule is used for initializing signature operation according to the certificate object;
and the second signature submodule is used for accessing the signature function and carrying out signature operation.
4. The electronic contract signing system according to claim 3, wherein said correspondence relation determining unit specifically includes:
the information handle acquisition module is used for acquiring a plurality of information handles of the universal serial bus interface USB corresponding to the Ukey by utilizing a SetupDegGetClassDevs function;
an address information acquisition module, configured to acquire, according to the information handle, USB address information corresponding to the information handle by using a setupdigitdeviceregistratiyperproperty function;
a supplier information acquisition module, configured to establish a connection relationship with the USB by using DeviceIoControl according to the USB address information corresponding to the information handle, and then acquire supplier identification information VID and product identification code PID of the USB;
and the corresponding relation determining module is used for determining the corresponding relation between the Ukey and the CA according to the VID and the PID.
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