CN112668017B - Construction method, decryption method and device of self-explanatory encryption card - Google Patents
Construction method, decryption method and device of self-explanatory encryption card Download PDFInfo
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Abstract
The invention provides a construction method, a decryption method and a device thereof of a self-explanatory encryption card, wherein the construction method comprises the following steps: acquiring right information and user information, wherein the right information comprises a coupon code serial number; converting the ticket code serial number according to a password generation rule to generate a secret key; encrypting the right information by using the key to generate ciphertext information; signing the ciphertext information by using the user information to generate signature information; and combining the serial number of the coupon code, the ciphertext information and the signature information to generate the coupon code of the card coupon. The card and ticket supplier can correctly verify the authenticity of the ticket code provided by the user only by storing the key generation rule of the card and ticket supplier without storing a large amount of ticket codes and personal information, and the problem that the authenticity of the ticket code provided by the user cannot be verified after the system loses data is solved.
Description
Technical Field
The invention relates to the technical field of information encryption, in particular to a construction method, a decryption method and a device of a self-explanatory encryption card.
Background
A card ticket is an (electronic) card comprising a card number and a card secret or only a string of random characters (ticket codes). The traditional card codes have randomness, so that the user can hardly exhaust the codes to find out the codes actually existing by the card suppliers.
However, the card provider is bound to store some additional information in the system, such as information about the beneficiary of the issued ticket code. Once the card supplier stores the personal related information, the responsibility of protecting the information is exhausted, and the personal information is prevented from being leaked.
In addition, the conventional way for generating the card ticket is that a system randomly generates a string of random numbers and then stores the random numbers in a database and other systems, so that the data storage capacity is large and the occupied memory is large.
Disclosure of Invention
In view of the above problems, the present invention provides a construction method, a decryption method and a device thereof for a self-explanatory encryption card, which solve the problems of the prior art that the card has a large data storage capacity, occupies a large amount of memory, and is easy to cause personal information leakage.
In order to solve the technical problems, the invention adopts the technical scheme that: a construction method of a self-explanatory encryption card ticket comprises the following steps: acquiring right information and user information, wherein the right information comprises a coupon code serial number;
converting the ticket code serial number according to a password generation rule to generate a secret key; encrypting the right information by using the key to generate ciphertext information; signing the ciphertext information by using the user information to generate signature information; and combining the serial number of the coupon code, the ciphertext information and the signature information to generate the coupon code of the card coupon.
Preferably, before encrypting the right information, the method further comprises converting the right information into a high-level number.
As a preferred scheme, after the user information is obtained, a mapping table is further included, and the user information is mapped into mapping characters according to the mapping table.
Preferably, the right information further includes: a rights code, a vendor identification code, and an agent identification code.
Preferably, the cipher generation rule is an AES algorithm or a private encryption algorithm.
In a second aspect, the invention provides a decryption method with a self-explanatory encryption ticket, comprising the following steps: acquiring a coupon code and user information, wherein the coupon code comprises a coupon code serial number, ciphertext information and signature information; signing the ciphertext information by using the user information to generate verification information; judging whether the verification information is in accordance with the signature information, and if so, determining that the coupon code is legal; converting the ticket code serial number according to a password generation rule to generate a secret key; and decrypting the ciphertext information by using the key to acquire the right and interest information so as to endow corresponding rights and interests to the user.
Preferably, the method further comprises the following steps: and when the user loses the ticket code, providing the mobile phone number and the payment bill, and after the ticket code is qualified through manual verification, reissuing the ticket code.
Preferably, the method further comprises: after the decrypting the ciphertext information by using the key and obtaining the right information, the method further comprises the following steps: the voucher sequence number is recorded in the system to indicate that it has been consumed.
In a third aspect, the present invention further provides a construction device with a self-explanatory encryption ticket, including: the system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring right information and user information, and the right information comprises a coupon code serial number; the first secret key generation module is used for converting the ticket code serial number according to a password generation rule to generate a secret key; the ciphertext generating module is used for generating ciphertext information after encrypting the rights and interests information by using the key; the signature generation module is used for signing the ciphertext information by using the user information to generate signature information; and the ticket code generating module is used for combining the ticket code serial number, the ciphertext information and the signature information to generate a ticket code of the card ticket.
In a fourth aspect, the present invention further provides a decryption apparatus with a self-explanatory encrypted ticket, including: the second acquisition module is used for acquiring the coupon code and the user information, wherein the coupon code comprises a coupon code serial number, ciphertext information and signature information; the verification information generation module is used for signing the ciphertext information by using the user information to generate verification information; the validity judging module is used for judging whether the verification information is in accordance with the signature information or not, and if so, determining that the ticket code is legal; the second key generation module is used for converting the ticket code serial number according to a password generation rule to generate a key; and the decryption module is used for decrypting the ciphertext information by using the secret key to acquire the right and interest information so as to endow corresponding rights and interests to the user.
In summary, the beneficial effects of the invention include: by the technical scheme of the invention, a card and ticket supplier can correctly verify the authenticity of the ticket code provided by the user only by storing the own key generation rule without storing a large amount of ticket codes and personal information, so that the problem that whether the ticket code provided by the user is real or not cannot be verified after the system loses data is solved, and the problems of personal privacy information leakage and large memory occupation of data storage are avoided.
Drawings
The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts. Wherein:
FIG. 1 is a flow chart of a method for constructing a self-explanatory encryption ticket according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a process of generating ciphertext information according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a construction device with a self-explanatory encryption ticket according to an embodiment of the present invention;
FIG. 4 is a flow chart of a decryption method with a self-explanatory encryption ticket according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a decryption apparatus with a self-explanatory encrypted ticket according to an embodiment of the present invention.
Detailed Description
It is easily understood that according to the technical solution of the present invention, a person skilled in the art can propose various alternative structures and implementation ways without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
It should be understood that self-explanatory refers to an attribute that can explain itself information. When the ticket code is constructed, the valid period of the ticket code, the ticket code rights code, the ticket code serial number, the supplier identification code, the agency identification code and the ticket code production date are coded into the ticket code.
An embodiment according to the present invention is shown in connection with fig. 1. A construction method of an encryption card with self-explanatory property comprises steps S101-S105.
Step S101, right information and user information are obtained, and the right information comprises: a ticket code serial number.
After the user information is obtained, a mapping table is obtained, and the user information is mapped into mapping characters according to the mapping table.
Step S102, according to the password generation rule, the ticket code serial number is converted to generate a secret key. The cipher generation rule is an AES algorithm or a private encryption algorithm.
Step S103, after encrypting the right information by the key, generating the ciphertext information. Before encrypting the rights and interests information, the method also comprises the steps of converting the rights and interests information into a high-level number, and encrypting the high-level number to generate ciphertext information.
And step S104, signing the ciphertext information by using the user information to generate signature information.
And step S105, combining the serial number of the ticket code, the ciphertext information and the signature information to generate the ticket code of the card ticket.
The following describes a method for constructing a self-explanatory encryption card according to the present invention with specific examples.
And step S101, acquiring the rights and interests information and the user information. The rights and interests information includes: the equity code, the ticket code serial number, the equity days, the agent identification code, and the supplier identification code.
In the embodiment of the invention, the rights and interests code, the ticket code serial number, the rights and interests days, the agent identification code and the supplier identification code are all shaped by 36-system codes and respectively occupy 3 characters, 8 characters, 2 characters and 2 characters.
As shown in fig. 2, the equity code 575, the ticket code serial number 35, the equity days 90, the agent id 555, and the supplier id 89 are converted into 36-ary numbers, which are respectively the equity code OFZ, the ticket code serial number 0000000Z, the equity days 2I, the agent id FF, and the supplier id 2H, and the high-level numbers are combined into the code 0FZ0000000Z2IFF 2H.
The method comprises the steps of taking a mobile phone number provided by a user when placing an order as user information, obtaining a mapping table after obtaining the user information, and mapping the user information into mapping characters according to the mapping table. For example, the mapping table is
ABCDEFGHIJKLMNOPQRSTUVWXYZ
1234567890
If the user information of a person is 1830 × × 625, the mapped character is IPKR × nxm.
Step S102, according to the password generation rule, the ticket code serial number is converted to generate a secret key. The cipher generation rule is an AES algorithm or a private encryption algorithm.
In the embodiment of the invention, AES is used for coding in the conversion process, and the AES uses a key with 16 bytes. The key of each card is related to the serial number of the ticket, for example, the serial number is 0000000Z, and the key is a digital character string calculated according to a formula (decimal of the serial number is 2+1), and after the character string is converted into a byte array, the first 16 arrays are taken as the key. If there are less than 16 arrays, they are sequentially supplemented with 'a' to 'P' (one character can be converted into one byte), and the generation rule cannot be revealed.
Step S103, after encrypting the right information by the key, generating the ciphertext information.
For example: encrypting 0FZ0000000Z2IFF2H in AES/ECB/PKCS5Padding mode and obtaining ciphertext information through encryption and BASE64 transformation
VTNQYH8D2U3KP6T1HPTWODNJYTSN8NQCTA4AFYCK3LC＝
And step S104, signing the ciphertext information by using the user information to generate signature information.
After the last character is removed from the ciphertext, the user information (e.g. IPKRMLQONJM) is used to perform MD5 signature on VTNQYH8D2U3KP6T1HPTWODNJYTSN8NQCTA4AFYCK3LC to obtain C2D4667095F1FF59(16 system). Other hashing algorithms may also be used for the signature process.
And step S105, combining the serial number of the ticket code, the ciphertext information and the signature information to generate the ticket code of the card ticket.
For example, the ticket code of the final ticket is:
0000000ZVTNQYH8D2U3KP6T1HPTWODNJYTSN8NQCTA4AFYCK3LCC2D4667095F1FF59
as shown in fig. 3, the present invention also provides a construction apparatus with a self-explanatory encryption ticket, comprising:
the first obtaining module 101 is configured to obtain right information and user information, where the right information includes a serial number of a ticket code.
The first key generation module 102 is configured to convert the ticket code sequence number according to a password generation rule, and generate a key.
And the ciphertext generating module 103 is configured to encrypt the right information by using the key, and then generate ciphertext information.
And the signature generation module 104 is configured to sign the ciphertext information by using the user information to generate signature information.
The ticket code generating module 105 is configured to combine the ticket code serial number, the ciphertext information, and the signature information to generate a ticket code of the card ticket.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
As shown in fig. 4, the present invention provides a decryption method with a self-explanatory encrypted ticket, comprising:
step S201: acquiring a coupon code and user information, wherein the coupon code comprises a coupon code serial number, ciphertext information and signature information;
step S202: signing the ciphertext information by using the user information to generate verification information;
step S203: judging whether the verification information is in accordance with the signature information, and if so, determining that the ticket code is legal;
step S204: converting the ticket code serial number according to a password generation rule to generate a secret key;
step S205: and decrypting the ciphertext information by using the key to acquire the right and interest information so as to endow corresponding rights and interests to the user.
In a specific embodiment, the method further comprises: and when the user loses the ticket code, providing the mobile phone number and the payment bill, and after the ticket code is qualified through manual verification, reissuing the ticket code.
Further, after the ciphertext information is decrypted by using the key and the right information is obtained, the method further includes: the coupon code serial number is recorded in the system to indicate that it has been consumed, preventing repeat consumption.
The following describes a decryption method with a self-explanatory encryption ticket according to the present invention in a specific example.
Step S201: and acquiring the coupon code and user information, wherein the coupon code comprises a coupon code serial number, ciphertext information and signature information. For example: coupon code is
0000000ZVTNQYH8D2U3KP6T1HPTWODNJYTSN8NQCTA4AFYCK3LCC2D4667095F1FF 59, the serial number of the ticket code is 0000000Z;
the ciphertext information is VTNQYH8D2U3KP6T1HPTWODNJYTSN8NQCTA4AFYCK3 LC;
the signature information is C2D4667095F1FF 59.
When the user uses the coupon code, the user information, such as the mobile phone number 1830 × 625, is mapped according to the mapping table to form the IPKR × nxm.
Step S202: and signing the ciphertext information by using the user information to generate verification information.
And signing the ciphertext information by using the mapping characters to generate verification information.
Step S203: and judging whether the verification information is consistent with the signature information, and if so, determining that the ticket code is legal. When the verification information is the same as the signature information, the ticket code is not tampered.
Step S204: the ticket code sequence number is converted according to a password generation rule to generate a secret key.
Step S205: and decrypting the ciphertext information by using the key to acquire the right and interest information so as to endow corresponding rights and interests to the user. The decryption is successful, which shows that the ticket code is sent by the mechanism and is real; the decryption fails, indicating that the ticket code is counterfeit or that the ticket code of another institution.
In a specific embodiment, the method further comprises: and when the user loses the ticket code, providing the mobile phone number and the payment bill, after the ticket code is qualified through manual verification, reissuing the ticket code again, and simultaneously recording (or updating) the reissued ticket code serial number and the user information.
Further, after the ciphertext information is decrypted by using the key and the right information is obtained, the method further includes: the coupon code serial number is recorded in the system to indicate that it has been consumed, preventing repeat consumption.
As shown in fig. 5, the present invention also provides a decryption apparatus with a self-explanatory encrypted ticket, comprising:
a second obtaining module 201, configured to obtain a ticket code and user information, where the ticket code includes a ticket code serial number, ciphertext information, and signature information;
the verification information generation module 202 is configured to sign the ciphertext information by using the user information to generate verification information;
the validity judging module 203 is used for judging whether the verification information is consistent with the signature information, and if so, determining that the ticket code is legal;
the second key generation module 204 converts the ticket code serial number according to the password generation rule to generate a key;
and the decryption module 205 is configured to decrypt the ciphertext information using the key to obtain the right information, so as to give the user a corresponding right.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In summary, the beneficial effects of the invention include: when the ticket code is sent out, the unique information of the card and ticket supplier client, such as the mobile phone number recoded by using the cipher book (mapping table), signs the ticket code, and the ticket code taken by the client is a string with signature. The customer redeems the card at the card supplier's system, which first verifies the legitimacy and then extracts the information contained in the ticket code using self-explanatory properties. In the whole process, the card and ticket supplier does not need to store any user information, and the system only needs to store the user information after the user consumes the card and ticket. By the technical scheme of the invention, a card and ticket supplier can correctly verify the authenticity of the ticket code provided by the user only by storing the own key generation rule without storing a large amount of ticket codes and personal information, so that the problem that whether the ticket code provided by the user is real or not cannot be verified after the system loses data is solved, and the problems of personal privacy information leakage and large memory occupation of data storage are avoided.
It can be understood that the construction method, the decryption method and the device with the self-explanatory encryption card ticket provided by the invention can also be extended to the scenes needing tracing, such as production process information of agricultural products and the like.
It should be understood that the integrated device, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The technical scope of the present invention is not limited to the above description, and those skilled in the art can make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and such changes and modifications should fall within the protective scope of the present invention.
Claims (10)
1. A construction method of a self-explanatory encryption card ticket is characterized by comprising the following steps:
acquiring right information and user information, wherein the right information comprises a coupon code serial number;
converting the ticket code serial number according to a password generation rule to generate a secret key;
encrypting the right information by using the key to generate ciphertext information;
signing the ciphertext information by using the user information to generate signature information;
and combining the serial number of the coupon code, the ciphertext information and the signature information to generate the coupon code of the card coupon.
2. The method of claim 1, further comprising converting the rights information into a high-level number before encrypting the rights information.
3. The method for constructing a self-explanatory encryption card according to claim 1, further comprising, after the obtaining of the user information, obtaining a mapping table according to which the user information is mapped to mapping characters.
4. The method of claim 1, wherein the rights information further comprises: a rights code, a vendor identification code, and an agent identification code.
5. The method of claim 1, wherein the cipher generation rule is AES algorithm.
6. A decryption method with a self-explanatory encryption card is characterized by comprising the following steps:
acquiring a coupon code and user information, wherein the coupon code comprises a coupon code serial number, ciphertext information and signature information;
signing the ciphertext information by using the user information to generate verification information;
judging whether the verification information is in accordance with the signature information, and if so, determining that the coupon code is legal;
converting the ticket code serial number according to a password generation rule to generate a secret key;
and decrypting the ciphertext information by using the key to acquire the right and interest information so as to endow corresponding rights and interests to the user.
7. The decryption method with self-explanatory encrypted ticket according to claim 6, further comprising: and when the user loses the ticket code, providing the mobile phone number and the payment bill, and after the ticket code is qualified through manual verification, reissuing the ticket code.
8. The decryption method with the self-explanatory encryption ticket as claimed in claim 6, further comprising, after the decrypting the ciphertext information using the key to obtain the right information: the voucher sequence number is recorded in the system to indicate that it has been consumed.
9. A self-explanatory encryption ticket construction device, comprising:
the system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring right information and user information, and the right information comprises a coupon code serial number;
the first secret key generation module is used for converting the ticket code serial number according to a password generation rule to generate a secret key;
the ciphertext generating module is used for generating ciphertext information after encrypting the rights and interests information by using the key;
the signature generation module is used for signing the ciphertext information by using the user information to generate signature information;
and the ticket code generating module is used for combining the ticket code serial number, the ciphertext information and the signature information to generate a ticket code of the card ticket.
10. A decryption apparatus having a self-explanatory encrypted ticket, comprising:
the second acquisition module is used for acquiring the coupon code and the user information, wherein the coupon code comprises a coupon code serial number, ciphertext information and signature information;
the verification information generation module is used for signing the ciphertext information by using the user information to generate verification information;
the validity judging module is used for judging whether the verification information is in accordance with the signature information or not, and if so, determining that the ticket code is legal;
the second key generation module is used for converting the ticket code serial number according to a password generation rule to generate a key;
and the decryption module is used for decrypting the ciphertext information by using the secret key to acquire the right and interest information so as to endow corresponding rights and interests to the user.
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| KR100477645B1 (en) * | 2002-05-25 | 2005-03-23 | 삼성전자주식회사 | Method of generating serial number and apparatus thereof |
| US8874485B2 (en) * | 2011-12-16 | 2014-10-28 | Palo Alto Research Center Incorporated | Privacy-preserving behavior targeting for digital coupons |
| CN105373927B (en) * | 2014-08-26 | 2020-06-02 | 腾讯科技（深圳）有限公司 | Ticket code generation method and device of electronic ticket and server |
| CN104573442A (en) * | 2014-12-29 | 2015-04-29 | 北京网秦天下科技有限公司 | E-coupon generation method and device |
| CN108510327A (en) * | 2018-03-29 | 2018-09-07 | 广东顺德云证物联网科技有限公司 | Discount coupon generation method and system |
| CN110362719A (en) * | 2019-05-21 | 2019-10-22 | 平安银行股份有限公司 | Data processing method, device, electric terminal and storage medium |
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