CN113032812A - Salary management system for preventing data tampering - Google Patents
Salary management system for preventing data tampering Download PDFInfo
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- CN113032812A CN113032812A CN202110397844.4A CN202110397844A CN113032812A CN 113032812 A CN113032812 A CN 113032812A CN 202110397844 A CN202110397844 A CN 202110397844A CN 113032812 A CN113032812 A CN 113032812A
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- salary
- employee
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- management system
- auditing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/10—Office automation; Time management
- G06Q10/103—Workflow collaboration or project management
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/10—Office automation; Time management
- G06Q10/105—Human resources
- G06Q10/1057—Benefits or employee welfare, e.g. insurance, holiday or retirement packages
Abstract
The invention relates to the technical field of salary data security, and discloses a salary management system for preventing data tampering, which comprises: running on a local management serverLMSsmsThe service end software of the salary management system is used for signing the user when salarySSUaOn completion of employee paytablesEP 1 After making, the staff pay table is displayed on the pay management systemEP 1 Performing encryption and signature processing to obtain ciphertextC 1 And signaturesS 1 (ii) a Salary auditing userSAUbFirst decipher ciphertextC 1 Obtaining employee salary tablesEP 2 Then verifying the employee paytableEP 1 Is signedS 1 Validity of and paytable to employeesEP 2 Auditing is carried out, and the employee paytables are checked after the auditing is finishedEP 2 Performing encryption and signature processing to obtain ciphertextC 2 And signaturesS 2 . The invention solves the technical problems of how to prevent the illegal user from maliciously tampering the employee salary data and how to prevent the illegal user from maliciously forging the employee salary data.
Description
Technical Field
The invention relates to the technical field of salary data security, in particular to a salary management system for preventing data tampering.
Background
At present, most salary management systems still adopt the following two schemes for processing data between business processes. And printing the data presented to the user in a paper medium mode, and then carrying out stage-by-stage paper signature approval. Or a workflow mechanism is arranged in a database application framework, and the step-by-step progression of the process is completed in the database, but the verification of the data is only relatively simple password type identity verification.
The paper signature itself does not contain any information of the content being signed, and the uncertainty of the signature itself facilitates the counterfeiting of the paper signature. While digital signatures in the form of bit streams depend on the content being signed, it is theoretically infeasible to forge a signature as long as the signer does not lose and leak the held key. Due to the large data volume of the salary management system, a paper document contains more than one page of content in many times. However, the paper signature is usually attached to the last page, and if the content before the last page after the signature is illegally replaced, the paper signature cannot be avoided. Meanwhile, the smooth proceeding of the paper signature business process is also easily limited by places.
The identity of an operator is generally verified by inputting a user password, and the method only verifies the identity of a signer and does not protect signed data. If the signed data is modified intentionally or unintentionally after the electronic signature, the ordinary electronic signature is not recognizable. Even if a digest representing the content of the data is embedded in the signature, a normal electronic signature is still unrecognizable if someone maliciously modifies the data and forges a digest.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a salary management system for preventing data tampering, which aims to solve the technical problems of how to prevent illegal users from maliciously tampering employee salary data and how to prevent illegal users from maliciously forging employee salary data.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme:
a payroll management system that prevents data tampering, comprising: running on a local management serverLMSsmsThe salary management system server software runs with salary management system client software and is used for salary signing usersSSUaComputer terminal for completing employee salary table makingCTaRunning user end software of salary management system and used for salary examinationNuclear userSAUbComputer terminal for completing employee salary table auditCTbRunning salary management system user side software and used for salary examination and approval userSAUcComputer terminal for completing approval of employee payrollCTc；
Signing user when payrollSSUaOn completion of employee paytablesEP 1 After making, the staff pay table is displayed on the pay management systemEP 1 Performing encryption and signature processing to obtain ciphertextC 1 And signaturesS 1 ；
Salary auditing userSAUbFirst decipher ciphertextC 1 Obtaining employee salary tablesEP 2 Then verifying the employee paytableEP 1 Is signedS 1 Validity of and paytable to employeesEP 2 Auditing is carried out, and the employee paytables are checked after the auditing is finishedEP 2 Performing encryption and signature processing to obtain ciphertextC 2 And signaturesS 2 ；
Salary approval userSAUcFirst decipher ciphertextC 2 Obtaining employee salary tablesEP 3 Then verifying the employee paytableEP 2 Is signedS 2 Validity of and paytable to employeesEP 3 Carrying out approval, and carrying out salary table on the staff after the approval is finishedEP 3 Performing encryption and signature processing to obtain ciphertextC 3 And signaturesS 3 。
Further, the payroll signature userSSUaRandomly selecting integersN 1 (1<N 1 <ϕ(M 1 )，gcd(N 1 ,ϕ(M 1 ))= 1)Calculating the private keyK 1 Satisfy the following requirementsK 1 ×N 1 ≡1modϕ(M 1 )(ii) a Then the private key is combined(K 1 ,M 1 )Storing the public key in secret(N 1 ,M 1 )Transmitting to a salary management system for disclosure;
salary auditing userSAUbRandomly selecting integersN 2 (1<N 2 <ϕ(M 2 )，gcd(N 2 ,ϕ(M 2 ))=1)Calculating the private keyK 2 Satisfy the following requirementsK 2 ×N 2 ≡1modϕ(M 2 )(ii) a Then the private key is combined(K 2 ,M 2 )Storing the public key in secret(N 2 ,M 2 )And transmitting to a salary management system for disclosure.
Further, the payroll signature userSSUaValidating a user with a fixed valueCVUiOf (2) a public key(N 2 ,M 2 )Salary table for staffEP 1 Encrypted, the ciphertextC 1 =(EP 1 ) N2 modM 2 ；
Salary signing userSSUaUsing its own private key(K 1 ,M 1 )Salary table for staffEP 1 Carry out a signature ofSIG 1 ≡(h(EP 1 )) K1 modM 1 (ii) a Wherein the content of the first and second substances,h(EP 1 )to adopt one-way hash functionhStructured staff salary tableEP 1 The abstract of (1).
Further, the salary auditing userSAUbUsing its own private key(K 2 ,M 2 )Salary table for staffEP 1 Is encrypted by the encryption keyC 1 Decrypting to obtain employee payroll tableEP 2 =C 1 K2 modM 2 ；
Salary auditing userSAUbConstruct employee paytablesEP 2 Summary of (1)(h(EP 2 )；
Salary auditing userSAUbSigning users with salarySSUaOf (2) a public key(N 1 ,M 1 )Salary table for staffEP 1 Is signedSIG 1 The following calculations were performed:h(EP 1 )≡(SIG 1 ) N1 modM 1 ；
if it ish(EP 1 )=(h(EP 2 )Then, thenSIG 1 Is employee salary tableEP 1 Is valid.
(III) advantageous technical effects
Compared with the prior art, the invention has the following beneficial technical effects:
when the user is signed, the invention completes the employee payroll tableEP 1 After making, the staff pay table is displayed on the pay management systemEP 1 Performing encryption and signature processing to obtain ciphertextC 1 And signaturesS 1 ；
Salary auditing userSAUbFirst decipher ciphertextC 1 Obtaining employee salary tablesEP 2 Then verifying the employee paytableEP 1 Is signedS 1 Validity of and paytable to employeesEP 2 Auditing is carried out, and the employee paytables are checked after the auditing is finishedEP 2 Performing encryption and signature processing to obtain ciphertextC 2 And signaturesS 2 ；
Salary approval userSAUcFirst decipher ciphertextC 2 Obtaining employee salary tablesEP 3 Then verifying the employee paytableEP 2 Is signedS 2 And pay employeesWatch (A)EP 3 Carrying out approval, and carrying out salary table on the staff after the approval is finishedEP 3 Performing encryption and signature processing to obtain ciphertextC 3 And signaturesS 3 ；
The signature of each person is not counterfeitable, because other people except himself cannot know the private key of the person, so that the non-tamper property of the employee payroll table is well guaranteed; the illegal user wants to forge an employee payroll and sign by using the private key of the illegal user is also infeasible, because the receiver can quickly verify that the signature is invalid after receiving the employee payroll, the signature can be refused;
therefore, the technical effect of preventing illegal users from maliciously tampering the employee salary data is achieved; the technical effect of preventing the illegal user from maliciously forging the employee salary data is achieved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
A payroll management system that prevents data tampering, comprising: installed and operated in a local management serverLMSsmsPayroll management system server software on the operating system, installed and run with payroll management system client software and used for payroll signing usersSSUaComputer terminal for completing employee salary table makingCTaThe software of the user terminal of the salary management system is installed and operated and is used for salary auditing usersSAUbComputer terminal for completing employee salary table auditCTbInstalled and operated with salary management system user side software and used for salary examination and approval usersSAUcComputer terminal for completing approval of employee payrollCTc；
Salary signing userSSUaThrough computer terminalsCTaUser end software and operation of salary management systemManaging servers locallyLMSsmsThe salary management system server software performs data interaction with each other;
salary auditing userSAUbThrough computer terminalsCTbUser end software of salary management system and local management serverLMSsmsThe salary management system server software performs data interaction with each other;
salary approval userSAUcThrough computer terminalsCTcUser end software of salary management system and local management serverLMSsmsThe salary management system server software performs data interaction with each other;
in order to protect the security of the employee pay table during the process of making, auditing and approving the employee pay table and after the completion of the process, namely, in order to prevent unauthorized illegal users from maliciously modifying the employee pay table, when signing the user for paySSUaOn completion of employee paytablesEP 1 After making, the staff pay table is displayed on the pay management systemEP 1 Performing encryption and signature processing to obtain ciphertextC 1 And signaturesS 1 ；
Salary auditing userSAUbFirst decipher ciphertextC 1 Obtaining employee salary tablesEP 2 Then verifying the employee paytableEP 1 Is signedS 1 Validity of and paytable to employeesEP 2 Auditing is carried out, and the employee paytables are checked after the auditing is finishedEP 2 Performing encryption and signature processing to obtain ciphertextC 2 And signaturesS 2 ；
Salary approval userSAUcFirst decipher ciphertextC 2 Obtaining employee salary tablesEP 3 Then verifying the employee paytableEP 2 Is signedS 2 Validity of and paytable to employeesEP 3 Carrying out approval, and carrying out salary table on the staff after the approval is finishedEP 3 Performing encryption and signature processing to obtain ciphertextC 3 And signaturesS 3 ；
Further, pay tables are provided for employees on a pay management systemEPThe method for encrypting and decrypting, signing and verifying the validity of the signature comprises the following steps:
step one, salary signing userSSUaAnd salary auditing userSAUbGenerating respective private key and public key on the salary management system, and specifically executing the following operations:
payroll signing userSSUaFirst, two secret large prime numbers are selectedS 1 AndT 1 then calculateM 1 =S 1 ×T 1 ，ϕ (M 1 )=(S 1 -1)(T 1 -1)Whereinϕ(M 1 )Is the Euler function;
salary signing userSSUaRandomly selecting integersN 1 (1<N 1 <ϕ(M 1 )，gcd(N 1 ,ϕ(M 1 ))=1)Calculating the private keyK 1 Satisfy the following requirementsK 1 ×N 1 ≡1modϕ(M 1 )(ii) a Then the private key is combined(K 1 ,M 1 )Storing the public key in secret(N 1 ,M 1 )Transmitting to a salary management system for disclosure;
second, salary auditing userSAUbFirst, two secret large prime numbers are selectedS 2 AndT 2 then calculateM 2 =S 2 ×T 2 ，ϕ (M 2 )=(S 2 -1)(T 2 -1)Whereinϕ(M 2 )Is the Euler function;
salary auditing userSAUbRandomly selecting integersN 2 (1<N 2 <ϕ(M 2 )，gcd(N 2 ,ϕ(M 2 ))=1)Calculating the private keyK 2 Satisfy the following requirementsK 2 ×N 2 ≡1modϕ(M 2 )(ii) a Then the private key is combined(K 2 ,M 2 )Storing the public key in secret(N 2 ,M 2 )Transmitting to a salary management system for disclosure;
step two, salary signing userSSUaSalary table for staff on salary management systemEP 1 Performing encryption and signature processing, and specifically executing the following operations:
salary signing userSSUaValidating a user with a fixed valueCVUiOf (2) a public key(N 2 ,M 2 )Salary table for staffEP 1 Encrypted, the ciphertextC 1 =(EP 1 ) N2 modM 2 ；
Salary signing userSSUaUsing its own private key(K 1 ,M 1 )Salary table for staffEP 1 Carry out a signature ofSIG 1 ≡(h(EP 1 )) K1 modM 1 (ii) a Wherein the content of the first and second substances,h(EP 1 )to adopt one-way hash functionhStructured staff salary tableEP 1 The abstract of (1);
step three, salary auditing userSAUbFirst decipher ciphertextC 1 Obtaining employee salary tablesEP 2 Then verifying the employee paytableEP 1 Is signedSIG 1 Specifically, the following operations are performed:
salary auditing userSAUbUsing its own private key(K 2 ,M 2 )Salary table for staffEP 1 Is close toArticle (Chinese character)C 1 Decrypting to obtain employee payroll tableEP 2 =C 1 K2 modM 2 ；
Salary auditing userSAUbConstruct employee paytablesEP 2 Summary of (1)(h(EP 2 )；
Salary auditing userSAUbSigning users with salarySSUaOf (2) a public key(N 1 ,M 1 )Salary table for staffEP 1 Is signedSIG 1 The following calculations were performed:h(EP 1 )≡(SIG 1 ) N1 modM 1 ；
if it ish(EP 1 )=(h(EP 2 )Then, thenSIG 1 Is employee salary tableEP 1 A valid signature of (2);
the scheme adopts a management mechanism for sequentially signing, namely, a former person always designates a latter person to decrypt the encrypted ciphertext of the employee payroll table, a former encryption and signature person always designates a latter receiver to verify the signature of the encrypted employee payroll table, and the receiver designated to decrypt and verify the signature can always verify the validity of the signature of the pusher; and the signature of each person is not fakeable, because other people except himself cannot know his private key, thus the non-tamper property of the employee payroll table is well ensured; it is also infeasible for an illegal user to forge a employee payroll and sign with their own private key, because the recipient receiving the employee payroll can quickly verify that the signature is invalid and will reject the signature.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A payroll management system that prevents data tampering, comprising: running on a local management serverLMSsmsThe salary management system server software runs with salary management system client software and is used for salary signing usersSSUaComputer terminal for completing employee salary table makingCTaRunning user end software of salary management system and used for salary auditing userSAUbComputer terminal for completing employee salary table auditCTbRunning salary management system user side software and used for salary examination and approval userSAUcComputer terminal for completing approval of employee payrollCTc；
Signing user when payrollSSUaOn completion of employee paytablesEP 1 After making, the staff pay table is displayed on the pay management systemEP 1 Performing encryption and signature processing to obtain ciphertextC 1 And signaturesS 1 ；
Salary auditing userSAUbFirst decipher ciphertextC 1 Obtaining employee salary tablesEP 2 Then verifying the employee paytableEP 1 Is signedS 1 Validity of and paytable to employeesEP 2 Auditing is carried out, and the employee paytables are checked after the auditing is finishedEP 2 Performing encryption and signature processing to obtain ciphertextC 2 And signaturesS 2 ；
Salary approval userSAUcFirst decipher ciphertextC 2 Obtaining employee salary tablesEP 3 Then verifying the employee paytableEP 2 Is signedS 2 Validity of and paytable to employeesEP 3 Carrying out approval, and carrying out salary table on the staff after the approval is finishedEP 3 Performing encryption and signature processing to obtain ciphertextC 3 And signaturesS 3 。
2. The payroll management system for preventing data tampering as defined in claim 1, wherein the payroll signing userSSUaRandomly selecting integersN 1 (1<N 1 <ϕ(M 1 )，gcd(N 1 ,ϕ(M 1 ))=1)Calculating the private keyK 1 Satisfy the following requirementsK 1 ×N 1 ≡1modϕ (M 1 )(ii) a Then the private key is combined(K 1 ,M 1 )Storing the public key in secret(N 1 ,M 1 )Transmitting to a salary management system for disclosure;
salary auditing userSAUbRandomly selecting integersN 2 (1<N 2 <ϕ(M 2 )，gcd(N 2 ,ϕ(M 2 ))=1)Calculating the private keyK 2 Satisfy the following requirementsK 2 ×N 2 ≡1modϕ(M 2 )(ii) a Then the private key is combined(K 2 ,M 2 )Storing the public key in secret(N 2 ,M 2 )And transmitting to a salary management system for disclosure.
3. The payroll management system for preventing data tampering as defined in claim 2, wherein the payroll signing userSSUaValidating a user with a fixed valueCVUiOf (2) a public key(N 2 ,M 2 )Salary table for staffEP 1 Encrypted, the ciphertextC 1 =(EP 1 ) N2 modM 2 ；
Salary signing userSSUaUsing its own private key(K 1 ,M 1 )Pay staffWatch (A)EP 1 Carry out a signature ofSIG 1 ≡ (h(EP 1 )) K1 modM 1 (ii) a Wherein the content of the first and second substances,h(EP 1 )to adopt one-way hash functionhStructured staff salary tableEP 1 The abstract of (1).
4. The payroll management system for preventing data tampering as defined in claim 3, wherein the payroll auditing userSAUbUsing its own private key(K 2 ,M 2 )Salary table for staffEP 1 Is encrypted by the encryption keyC 1 Decrypting to obtain employee payroll tableEP 2 =C 1 K2 modM 2 ；
Salary auditing userSAUbConstruct employee paytablesEP 2 Summary of (1)(h(EP 2 )；
Salary auditing userSAUbSigning users with salarySSUaOf (2) a public key(N 1 ,M 1 )Salary table for staffEP 1 Is signedSIG 1 The following calculations were performed:h(EP 1 )≡(SIG 1 ) N1 modM 1 ；
if it ish(EP 1 )=(h(EP 2 )Then, thenSIG 1 Is employee salary tableEP 1 Is valid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110397844.4A CN113032812A (en) | 2021-04-14 | 2021-04-14 | Salary management system for preventing data tampering |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110397844.4A CN113032812A (en) | 2021-04-14 | 2021-04-14 | Salary management system for preventing data tampering |
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| CN202110397844.4A Pending CN113032812A (en) | 2021-04-14 | 2021-04-14 | Salary management system for preventing data tampering |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117113437A (en) * | 2023-10-19 | 2023-11-24 | 深圳竹云科技股份有限公司 | File tampering detection method and device, computer equipment and storage medium |
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2021
- 2021-04-14 CN CN202110397844.4A patent/CN113032812A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117113437A (en) * | 2023-10-19 | 2023-11-24 | 深圳竹云科技股份有限公司 | File tampering detection method and device, computer equipment and storage medium |
| CN117113437B (en) * | 2023-10-19 | 2024-02-06 | 深圳竹云科技股份有限公司 | File tampering detection method and device, computer equipment and storage medium |
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