CN109347630A - A kind of tax controlling equipment cryptographic key distribution method and system - Google Patents
A kind of tax controlling equipment cryptographic key distribution method and system Download PDFInfo
- Publication number
- CN109347630A CN109347630A CN201811200873.1A CN201811200873A CN109347630A CN 109347630 A CN109347630 A CN 109347630A CN 201811200873 A CN201811200873 A CN 201811200873A CN 109347630 A CN109347630 A CN 109347630A
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- CN
- China
- Prior art keywords
- key
- controlling equipment
- protection
- local side
- working
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/0822—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using key encryption key
Abstract
The invention discloses a kind of methods of tax controlling equipment key distribution, which comprises generates tax controlling equipment public private key pair, tax controlling equipment public key is sent to local side cipher machine, and receive the local side cipher machine public key of local side cipher machine transmission；The protection key for receiving the encryption of local side cipher machine, is decrypted according to the protection key of tax controlling equipment private key pair encryption, obtains protection key；The protection key is one or more；Local side cipher machine is received using the working key of protection key encryption, is decrypted according to working key described in the protection key pair of acquisition, obtains working key；The method and system are encrypted by setting protection key pair working key, are realized the double-encryption in key distribution procedure, are avoided illegally being stolen by people, algorithmically ensure that the safety of distribution；Whole arithmetic speed can be improved by using protection key in the method simultaneously, and then improves the operation efficiency of key distribution.
Description
Technical field
The present invention relates to fields of communication technology, more particularly, to a kind of tax controlling equipment cryptographic key distribution method and system.
Background technique
In the tax information system, due to the communication between tax controlling equipment and tax local side server be all by local area network or
Person internet carries out, and in order to ensure the safety of business datum, has largely used cryptographic technique, has been encrypted and verified to data,
Ensure the confidentiality and integrality of data transmission.Such as in invoice purchasing process, hair that local side server is bought taxpayer
Ticket information is encrypted using booking key, tax controlling equipment is written via client in encryption data, tax controlling equipment makes in inside
It is decrypted with identical key, and integrity checking is carried out to data, be stored to storage inside after confirmation data are correct
Area, for use of making out an invoice in the future.Invoice issuing process is similar therewith, and tax controlling equipment is believed the element of invoice with preset key of making out an invoice
Breath is encrypted, and encrypted result is sent to local side via software of making out an invoice, and local side is decrypted and is verified using identical key,
Invoice is stored after confirmation invoice information is errorless.This two-way data safety exchange, presets institute with communication two party
Premised on the key used.For local side, generally key is generated and stored using cipher machine；Each tax control is set
It is standby, it needs to generate key with local side cipher machine for it, and during key is distributed to tax controlling equipment, the safety of key distribution
There are hidden danger for property.
Summary of the invention
In order to solve key existing for background technique during local side cipher machine is distributed to tax controlling equipment, safety is deposited
The hidden danger the problem of, the present invention provides a kind of tax controlling equipment cryptographic key distribution method and system, the method and system are using protecting
Key pair working key encryption is protected, achievees the effect that double-encryption, greatly improves the safety in key distribution procedure, described one
Planting the method that tax controlling equipment key is distributed includes:
Tax controlling equipment public private key pair is generated, tax controlling equipment public key is sent to local side cipher machine, and receive local side cipher machine
The local side cipher machine public key of transmission；
The protection key for receiving the encryption of local side cipher machine, is solved according to the protection key of tax controlling equipment private key pair encryption
It is close, obtain protection key；
Local side cipher machine is received using the working key of protection key encryption, is worked according to the protection key pair of acquisition
Key is decrypted, and obtains working key.
Further, the protection key includes symmetric key；The working key includes symmetric key.
Further, before the protection key for receiving the encryption of local side cipher machine, the method also includes: the local side cipher machine
Protection key is encrypted by received tax controlling equipment public key, and is signed using local side cipher machine private key, is added
Protection key after close.
Further, the quantity of the protection key is multiple；According to tax controlling equipment public key to the guarantor of the multiple encryption
Shield key is decrypted, and obtains multiple protection keys；
Local side cipher machine selects one or more of multiple protection keys to encrypt shown working key, and according to
Key selection scheme is sent to tax controlling equipment by preset rules；Tax controlling equipment extracts one or more protect according to key selection scheme
Working key described in shield key pair is decrypted.
Further, the working key is carried out subpackage operation by local side cipher machine, obtains multiple working key piecemeals；Make
The working key piecemeal after subpackage is encrypted one by one with multiple protection keys；
After the working key piecemeal for receiving multiple encryptions, obtained according to corresponding multiple protection key decryption of acquisition more
A working key piecemeal；
The multiple working key piecemeal is generated into a working key according to preset rules.
Further, the tax controlling equipment public private key pair of the generation includes Use Limitation；When the Use Limitation self-generating
Start timing, when reaching timeliness, the public private key pair cancels automatically；And regenerate new public private key pair.
A kind of tax controlling equipment key distribution system includes: tax controlling equipment and local side cipher machine；
The tax controlling equipment includes: public private key pair generation unit, key calculation unit；
Tax controlling equipment public key is sent to local side for generating tax controlling equipment public private key pair by the public private key pair generation unit
Cipher machine, and receive the local side cipher machine public key of local side cipher machine transmission；
The key calculation unit is used to receive the protection key of local side cipher machine encryption, according to tax controlling equipment private key to adding
Close protection key is decrypted, and obtains protection key；
The key calculation unit is used to receive local side cipher machine using the working key of protection key encryption, according to acquisition
Protection key pair described in working key be decrypted, obtain working key.
Further, the protection key includes symmetric key；The working key includes symmetric key.
Further, the local side cipher machine is used to that key will to be protected to encrypt by received tax controlling equipment public key,
And signed using local side cipher machine private key, obtain encrypted protection key.
Further, the quantity of the protection key is multiple；According to tax controlling equipment public key to the guarantor of the multiple encryption
Shield key is decrypted, and obtains multiple protection keys；
Local side cipher machine selects one or more of multiple protection keys to encrypt shown working key, and according to
Key selection scheme is sent to tax controlling equipment by preset rules；Tax controlling equipment extracts one or more protect according to key selection scheme
Working key described in shield key pair is decrypted.
Further, the working key is carried out subpackage operation by the local side cipher machine, obtains multiple working keys point
Block；The working key piecemeal after subpackage is encrypted one by one using multiple protection keys；
After the tax controlling equipment receives the working key piecemeal of multiple encryptions, the key calculation unit is according to acquisition
Corresponding multiple protection key decryption obtain multiple working key piecemeals；According to preset rules by the multiple working key piecemeal
Generate a working key.
Further, the tax controlling equipment public private key pair that the public private key pair generation unit generates includes Use Limitation；It is described
Start timing when Use Limitation self-generating, when reaching timeliness, the public private key pair cancels automatically；Public private key pair generation unit weight
Newly-generated new public private key pair.
The invention has the benefit that technical solution of the present invention, give a kind of tax controlling equipment cryptographic key distribution method and
System, the method and system are encrypted by setting protection key pair working key, are realized double in key distribution procedure
Re-encryption avoids illegally being stolen by people, algorithmically ensure that the safety of distribution；The method is close by using protecting simultaneously
Key can be improved whole arithmetic speed, and then improve the operation efficiency of key distribution.
Detailed description of the invention
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by:
Fig. 1 is a kind of flow chart of tax controlling equipment cryptographic key distribution method of the specific embodiment of the invention；
Fig. 2 is a kind of structure chart of tax controlling equipment key distribution system of the specific embodiment of the invention.
Specific embodiment
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose
The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
Fig. 1 is a kind of flow chart of tax controlling equipment cryptographic key distribution method of the specific embodiment of the invention；As shown in Figure 1,
The described method includes:
Step 110, tax controlling equipment public private key pair is generated, tax controlling equipment public key is sent to local side cipher machine, and office of acceptance
The local side cipher machine public key for holding cipher machine to send；
When transmitting the public key, because public key will not influence safety, so there is no need to limit transmission mode；
Step 120, the protection key for receiving the encryption of local side cipher machine, according to the protection key of tax controlling equipment private key pair encryption
It is decrypted, obtains protection key；
The protection key of the local side cipher machine encryption is will to protect key based on the received by the local side cipher machine
Tax controlling equipment public key is encrypted, and is signed using the private key of local side cipher machine itself, and encrypted protection key is obtained.
The quantity of the protection key is multiple；It is carried out according to protection key of the tax controlling equipment public key to the multiple encryption
Decryption, obtains multiple protection keys；
Local side cipher machine selects one or more of multiple protection keys to encrypt the working key, and according to
Key selection scheme is sent to tax controlling equipment by preset rules；Tax controlling equipment extracts one or more protect according to key selection scheme
Working key described in shield key pair is decrypted.
For example, being encrypted using multiple protection key pair working keys, can be carried out according to preset sequence multiple add
It is close, and the preset sequence is sent to tax controlling equipment together.
Step 130, local side cipher machine is received using the working key of protection key encryption, according to the protection key pair of acquisition
The working key is decrypted, and obtains working key.
Further, the working key is carried out subpackage operation by the local side cipher machine, obtains multiple working keys point
Block；The working key piecemeal after subpackage is encrypted one by one using multiple protection keys；
It is close according to corresponding multiple protections of acquisition after the tax controlling equipment receives the working key piecemeal of multiple encryptions
Key decryption obtains multiple working key piecemeals；
The multiple working key piecemeal is generated into a working key according to preset rules.
Further, the protection key includes symmetric key；The working key includes symmetric key.It is non-right selecting
When claiming key as protection key, is encrypted by asymmetric key pair symmetric key, further increase the working key
The safety of distribution procedure；
Further, the tax controlling equipment public private key pair of the generation includes Use Limitation；When the Use Limitation self-generating
Start timing, when reaching timeliness, the public private key pair cancels automatically；And regenerate new public private key pair.
Be illustrated by taking the present embodiment as an example: in the example, the rivest, shamir, adelman of use is SM2, non-right
Claiming key length is 256 bits, and symmetric encipherment algorithm SM4, symmetric key length is 128 bits.
The local side cipher machine generates the public private key pair of oneself, and public key is denoted as P (j), and private key is denoted as R (j)；
The tax controlling equipment generates the public private key pair of oneself, and public key is denoted as P (s), and private key is denoted as R (s)；
The local side cipher machine generates protection key KEK；
The local side cipher machine encrypts the protection key KEK with P (s), and is signed with R (j) to it, is denoted as SIG
(R (j), ENC (P (s), KEK)), is transmitted to the tax controlling equipment.
The tax controlling equipment is verified with P (j) and is signed, and obtains protection key KEK with R (s) decryption；
The local side cipher machine generates working key WK；
Local side cipher machine protection key KEK cryptographic work key WK, is as a result denoted as ENC (KEK, WK), is passed
It is defeated by the tax controlling equipment；
The tax controlling equipment is decrypted with protection key KEK, obtains working key WK, completes the distribution of tax controlling equipment key
Task.
The structure chart of a kind of tax controlling equipment key distribution system of Fig. 2 specific embodiment of the invention, as shown in Fig. 2, institute
The system of stating includes:
Tax controlling equipment and local side cipher machine；
The tax controlling equipment includes: public private key pair generation unit, key calculation unit；
Tax controlling equipment public key is sent to local side for generating tax controlling equipment public private key pair by the public private key pair generation unit
Cipher machine, and receive the local side cipher machine public key of local side cipher machine transmission；
The key calculation unit is used to receive the protection key of local side cipher machine encryption, according to tax controlling equipment private key to adding
Close protection key is decrypted, and obtains protection key；
The key calculation unit is used to receive local side cipher machine using the working key of protection key encryption, according to acquisition
Protection key pair described in working key be decrypted, obtain working key.
Further, the protection key includes symmetric key；The working key includes symmetric key.
Further, the local side cipher machine is used to that key will to be protected to encrypt by received tax controlling equipment public key,
And signed using local side cipher machine private key, obtain encrypted protection key.
Further, the quantity of the protection key is multiple；According to tax controlling equipment public key to the guarantor of the multiple encryption
Shield key is decrypted, and obtains multiple protection keys；
Local side cipher machine selects one or more of multiple protection keys to encrypt shown working key, and according to
Key selection scheme is sent to tax controlling equipment by preset rules；Tax controlling equipment extracts one or more protect according to key selection scheme
Working key described in shield key pair is decrypted.
Further, the working key is carried out subpackage operation by the local side cipher machine, obtains multiple working keys point
Block；The working key piecemeal after subpackage is encrypted one by one using multiple protection keys；
After the tax controlling equipment receives the working key piecemeal of multiple encryptions, the key calculation unit is according to acquisition
Corresponding multiple protection key decryption obtain multiple working key piecemeals；According to preset rules by the multiple working key piecemeal
Generate a working key.
Further, the tax controlling equipment public private key pair that the public private key pair generation unit generates includes Use Limitation；It is described
Start timing when Use Limitation self-generating, when reaching timeliness, the public private key pair cancels automatically；Public private key pair generation unit weight
Newly-generated new public private key pair.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the disclosure
Example can be practiced without these specific details.In some instances, well known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this specification.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more devices different from this embodiment.It can be the module or list in embodiment
Member or component are combined into a module or unit or component, and furthermore they can be divided into multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it can use any
Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed
All process or units of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose
It replaces.The step of being related in this specification, which numbers, is only used for distinguishing each step, and the time being not limited between each step
Or the relationship of logic, restriction unless the context clearly, otherwise the relationship between each step includes the case where various possible.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments means to be in the disclosure
Within the scope of and form different embodiments.For example, embodiment claimed in detail in the claims is one of any
Can in any combination mode come using.
The various component embodiments of the disclosure can be implemented in hardware, or to run on one or more processors
Software module realize, or be implemented in a combination thereof.The disclosure is also implemented as executing side as described herein
The some or all equipment or system program (for example, computer program and computer program product) of method.It is such
It realizes that the program of the disclosure can store on a computer-readable medium, or can have the shape of one or more signal
Formula.Such signal can be downloaded from an internet website to obtain, and perhaps be provided on the carrier signal or with any other shape
Formula provides.
The disclosure is limited it should be noted that above-described embodiment illustrates rather than the disclosure, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.Word "comprising" is not arranged
Except there are element or steps not listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of more
A such element.The disclosure can be by means of including the hardware of several different elements and by means of properly programmed calculating
Machine is realized.If several in these systems can be by same in the unit claim for listing dry systems
Hardware branch embodies.
The above is only the specific embodiment of the disclosure, it is noted that for the ordinary skill people of this field
Member for, do not depart from the disclosure spirit under the premise of, can make several improvements, modify and deform, these improve, modification,
It is regarded as falling within the scope of protection of this application with deformation.
Claims (12)
1. a kind of method of tax controlling equipment key distribution, which comprises
Tax controlling equipment public private key pair is generated, tax controlling equipment public key is sent to local side cipher machine, and receives the transmission of local side cipher machine
Local side cipher machine public key；
The protection key for receiving the encryption of local side cipher machine, is decrypted according to the protection key of tax controlling equipment private key pair encryption, obtains
Key must be protected；
Local side cipher machine is received using the working key of protection key encryption, according to working key described in the protection key pair of acquisition
It is decrypted, obtains working key.
2. according to the method described in claim 1, it is characterized by: the protection key includes symmetric key；The work is close
Key includes symmetric key.
3. the method according to claim 1, wherein receive local side cipher machine encryption protection key before, it is described
Method further include: the local side cipher machine will protect key to encrypt by received tax controlling equipment public key, and use local side
Cipher machine private key is signed, and encrypted protection key is obtained.
4. according to the method described in claim 1, it is characterized by: the quantity of the protection key is multiple；It is set according to tax control
The protection key of the multiple encryption is decrypted in standby public key, obtains multiple protection keys；
Local side cipher machine selects one or more of multiple protection keys to encrypt shown working key, and according to default
Key selection scheme is sent to tax controlling equipment by rule；Tax controlling equipment is close according to the one or more protections of key selection scheme extraction
The working key is decrypted in key.
5. according to the method described in claim 4, it is characterized by: the working key is carried out subpackage behaviour by local side cipher machine
Make, obtains multiple working key piecemeals；The working key piecemeal after subpackage is encrypted one by one using multiple protection keys；
After the working key piecemeal for receiving multiple encryptions, multiple works are obtained according to corresponding multiple protection key decryption of acquisition
Make key piecemeal；
The multiple working key piecemeal is generated into a working key according to preset rules.
6. according to the method described in claim 1, it is characterized by: the tax controlling equipment public private key pair of the generation includes when using
Effect；Start timing when the Use Limitation self-generating, when reaching timeliness, the public private key pair cancels automatically；And it regenerates
New public private key pair.
7. a kind of tax controlling equipment key distribution system, the system comprises: tax controlling equipment and local side cipher machine；
The tax controlling equipment includes: public private key pair generation unit, key calculation unit；
Tax controlling equipment public key is sent to local side password for generating tax controlling equipment public private key pair by the public private key pair generation unit
Machine, and receive the local side cipher machine public key of local side cipher machine transmission；
The key calculation unit is used to receive the protection key of local side cipher machine encryption, according to tax controlling equipment private key pair encryption
Protection key is decrypted, and obtains protection key；
The key calculation unit is used to receive local side cipher machine using the working key of protection key encryption, according to the guarantor of acquisition
Working key described in shield key pair is decrypted, and obtains working key.
8. system according to claim 7, it is characterised in that: the protection key includes symmetric key；The work is close
Key includes symmetric key.
9. system according to claim 7, it is characterised in that: the local side cipher machine will be for that will protect key to pass through reception
Tax controlling equipment public key encrypted, and signed using local side cipher machine private key, obtain encrypted protection key.
10. system according to claim 7, it is characterised in that: the quantity of the protection key is multiple；It is set according to tax control
The protection key of the multiple encryption is decrypted in standby public key, obtains multiple protection keys；
Local side cipher machine selects one or more of multiple protection keys to encrypt shown working key, and according to default
Key selection scheme is sent to tax controlling equipment by rule；Tax controlling equipment is close according to the one or more protections of key selection scheme extraction
The working key is decrypted in key.
11. system according to claim 10, it is characterised in that: the local side cipher machine is divided the working key
Package operation obtains multiple working key piecemeals；The working key piecemeal after subpackage is added one by one using multiple protection keys
It is close；
After the tax controlling equipment receives the working key piecemeal of multiple encryptions, the key calculation unit is according to the correspondence of acquisition
The decryption of multiple protection keys obtain multiple working key piecemeals；The multiple working key piecemeal is generated according to preset rules
One working key.
12. system according to claim 7, it is characterised in that: the tax controlling equipment that the public private key pair generation unit generates
Public private key pair includes Use Limitation；Start timing when the Use Limitation self-generating, when reaching timeliness, the public private key pair is certainly
Movement is useless；Public private key pair generation unit regenerates new public private key pair.
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| CN201811200873.1A CN109347630A (en) | 2018-10-16 | 2018-10-16 | A kind of tax controlling equipment cryptographic key distribution method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811200873.1A CN109347630A (en) | 2018-10-16 | 2018-10-16 | A kind of tax controlling equipment cryptographic key distribution method and system |
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| CN109347630A true CN109347630A (en) | 2019-02-15 |
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| CN201811200873.1A Pending CN109347630A (en) | 2018-10-16 | 2018-10-16 | A kind of tax controlling equipment cryptographic key distribution method and system |
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Cited By (1)
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| CN110046906A (en) * | 2019-04-18 | 2019-07-23 | 郑建建 | A kind of the two-way authentication method of commerce and system of MPOS machine and server |
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Application publication date: 20190215 |