CN112016058A - Software protection mechanism based on collaborative verification and data exchange method - Google Patents
Software protection mechanism based on collaborative verification and data exchange method Download PDFInfo
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- CN112016058A CN112016058A CN202010885217.0A CN202010885217A CN112016058A CN 112016058 A CN112016058 A CN 112016058A CN 202010885217 A CN202010885217 A CN 202010885217A CN 112016058 A CN112016058 A CN 112016058A
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- 238000012795 verification Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 title claims abstract description 26
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 64
- 230000002194 synthesizing effect Effects 0.000 claims description 3
- 238000005336 cracking Methods 0.000 abstract description 8
- 230000004927 fusion Effects 0.000 description 5
- 238000013475 authorization Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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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
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/12—Protecting executable software
- G06F21/121—Restricting unauthorised execution of programs
Abstract
The invention discloses a software protection mechanism and a data exchange method based on collaborative verification, which comprises the following steps: s1, an encryption and decryption algorithm mechanism is agreed among the protected software, the slave equipment and the software dongle; s2, inserting the software dongle into the main equipment for the protected software to run; s3, judging the validity of the software dongle; s4, judging whether the hardware equipment is authorized or not; if the hardware equipment is authorized, controlling whether to start protected software; and S5, when the protected software is started, modifying the initial value of the built-in password of the protected software. The invention utilizes the protection mechanism of the combination of the software dongle and the slave device verification to dynamically update the initial password built in the protected software each time, so that the protected software cannot be traced and cracked, and the cracking difficulty and the security of the protected software are greatly improved.
Description
Technical Field
The invention relates to the technical field of software protection, in particular to a software protection mechanism and a data exchange method based on collaborative verification.
Background
The software is used as the brain of an intelligent system and has a decisive role. The software has the greatest characteristic of portability, brings convenience to developers, simultaneously ensures that the copyright of the software cannot be protected and is easy to copy and steal, thereby causing economic loss to software developers, and how to protect the rights and interests of the software developers becomes the problem to be solved by the software developers.
Among the current commercial software protection schemes, the software dongle scheme is distinguished from various application schemes due to the characteristics of simple operation, strong protection capability and stable performance, and is widely accepted and accepted by the market. The software dongle has been developed from the first generation to present, and has undergone multiple technical generations, and at present, the singlechip chip is used as a core device, so that the security performance of the software dongle is stronger, and the software dongle supports a built-in algorithm program, and can perform calculation exchange on read key data.
However, the method for cracking the software dongle is also continuously updated, and mainly comprises three methods of hardware analysis and cracking, software simulation and cracking and tracking method cracking. The cracker can restore the code of the software dongle, or modify the communication between the software and the dongle by writing an interception program, or Debug, track and decrypt the software by using Debug tools such as SoftICE and the like, so that the independent software dongle protection scheme faces various risks at present and damages the benefits of software developers.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a software protection mechanism and a data exchange method based on cooperative verification, so as to solve the problem that an individual software dongle protection scheme faces various risks at present, and to utilize the protection mechanism combining software dongle and slave device verification and a method for dynamically updating an initial password built in protected software every time, so that the software dongle cannot be traced and cracked, and the difficulty and the safety of the protected software in cracking are improved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows.
A software protection mechanism and a data exchange method based on collaborative verification comprise the following steps:
s1, an encryption and decryption algorithm mechanism is agreed among the protected software, the slave equipment and the software dongle;
s2, inserting the software dongle into the main equipment for the protected software to run;
s3, the protected software and the software dongle encrypt the same random number, and verify whether the ciphertext is consistent to judge the validity of the software dongle;
s4, if the dongle is a legally authorized dongle, transmitting the built-in initial value password of the protected software to the dongle, generating an encryption sequence based on the built-in initial value password, and returning the encryption sequence to the protected software; meanwhile, hardware machine code verification is carried out, and whether the hardware equipment is authorized or not is judged;
if the hardware equipment is authorized, generating an encryption sequence generated based on the equipment machine code, returning the encryption sequence to the protected software to synthesize a ciphertext, and carrying out decryption verification so as to control whether the protected software is started or not;
and S5, when the protected software is started, the protected software randomly generates a sequence and transmits the sequence to the software dongle, and the software dongle generates an encryption sequence by operating the received sequence through an encryption algorithm and transmits the encryption sequence back to the protected software to modify the initial value of the built-in password of the protected software.
Further optimizing the technical solution, the step S3 includes the following steps:
s31, the protected software generates a random number initial value, and the random initial value is encrypted by using an encryption algorithm to generate an encryption sequence; meanwhile, the initial value of the random number is transmitted to a software dongle, and the software dongle performs encryption operation through an encryption algorithm and transmits the encrypted value back to the protected software;
and S32, verifying the received encryption operation sequence of the softdog and the encryption sequence generated by the protected software, and judging the legality of the softdog according to the verification result.
The technical scheme is further optimized, the initial random number value is generated through a random function generator of the protected software, and the initial random number value is used as an initial algorithm value and is transmitted to a built-in algorithm sequence generation module of the protected software;
an encryption sequence based on random numbers generated by a random function generator is generated by an algorithm sequence generation module and is transmitted to an algorithm sequence verification module;
and the software dongle transmits the encryption algorithm sequence generated after the algorithm initial value is subjected to algorithm operation into the algorithm sequence verification module.
Further optimizing the technical solution, in step S4, the method for hardware machine code verification includes: and transmitting the machine code of the hardware to the slave equipment, and checking the machine code of the hardware.
Further optimizing the technical solution, in the step S4, the method for synthesizing the ciphertext includes: and fusing the encryption sequence based on the built-in initial value password and the encryption sequence generated based on the equipment machine code in the protected software ciphertext fusing module.
According to the technical scheme, encryption and decryption algorithm drivers are installed in the protected software, the slave equipment and the software dongle.
Further optimizing the technical scheme, still include: a hardware machine code acquisition mechanism for protected software; the hardware machine code includes various parameters and state descriptions of the current hardware.
Due to the adoption of the technical scheme, the technical progress of the invention is as follows.
The invention is used for software encryption protection and access authorization of slave equipment, and judges the reliability of the running hardware so as to access the slave equipment.
The invention utilizes the encryption algorithm to encrypt the communication data of the slave equipment, the software dongle and the protected software, utilizes the built-in software password and the hardware equipment as initial values to carry out encryption and decryption verification, and then updates the built-in software password, thereby improving the anti-cracking capability.
According to the invention, an encryption and decryption algorithm is formulated among protected software, a software dongle and slave equipment, and through algorithm transmission, the returned decryption data and the stored data are compared and verified, if the verification is successful, the software is considered to be operated as an authorized behavior, the protected software is allowed to access the slave equipment, the protection performance of the software is greatly improved, and meanwhile, the safety of the slave equipment can also be protected.
Drawings
FIG. 1 is an architectural flow diagram of the present invention;
fig. 2 is a schematic flow chart of the implementation of the present invention.
Detailed Description
The invention will be described in further detail below with reference to the figures and specific examples.
A cooperative authentication-based software protection mechanism and data exchange method, which are used for software encryption protection and access authorization to a slave device, and determining the reliability of running hardware to access the slave device, and are shown in fig. 1 to 2, and include the following steps:
and S1, an encryption and decryption algorithm mechanism is agreed among the protected software, the slave device and the software dongle. And encryption and decryption algorithm drivers are installed in the protected software, the slave equipment and the software dongle.
S2, inserting the software dongle into the main device where the protected software runs, and completing USB device enumeration, so that the protected software is started based on a software protection mechanism of algorithm encryption and collaborative verification.
S3, the protected software and the software dongle utilize the encryption algorithm to encrypt the same random number, verify whether the ciphertext is consistent, judge the validity of the software dongle, and ensure that the used software dongle is a legal, effective and authorized software dongle.
Step S3 includes the following steps:
s31, the protected software generates a random number initial value, and uses an encryption algorithm to perform encryption operation on the random initial value to generate an encryption sequence, namely 256 reference ciphertexts; meanwhile, the initial value of the random number is transmitted to the software dongle, and the software dongle performs encryption operation through an encryption algorithm to generate 256 chaotic ciphertexts which are transmitted back to the protected software.
The initial value of the random number is generated by a random function generator of the protected software, the initial value of the random number is used as an initial value of an algorithm and is transmitted to a built-in algorithm sequence generating module of the protected software, and the algorithm sequence generating module generates 256 reference ciphertexts.
And S32, verifying the received encryption operation sequence of the softdog and the encryption sequence generated by the protected software, and judging the legality and authorization condition of the softdog according to the verification result. The following steps are not performed if the dongle is not authorized.
Specifically, an encrypted sequence based on the random number generated by the randomizer is generated by the algorithm sequence generation module and is transmitted to the algorithm sequence verification module (i.e., the sequence alignment program in fig. 1).
And the software dongle transmits the encryption algorithm sequence generated after the algorithm initial value is subjected to algorithm operation into the algorithm sequence verification module. And the algorithm sequence verification module verifies the encryption operation sequence of the software dongle and the generated encryption sequence.
S4, if the dongle is a legally authorized dongle, that is, the dongle passes the validity verification, the protected software built-in initial value password is transmitted to the dongle, an encryption sequence based on the built-in initial value password is generated by using an encryption algorithm, and the encryption sequence is returned to the protected software; and meanwhile, checking a hardware machine code, and judging whether the hardware equipment is authorized hardware equipment.
In step S4, the method for checking the hardware machine code includes: the protected software transmits the machine code of the hardware to the slave equipment, calls the machine code record, traverses and inquires the hardware machine code in an authorized equipment library, checks whether the hardware machine code is authorized equipment, and verifies the hardware machine code.
If the hardware device is not authorized, the following steps cannot be executed. If the hardware equipment is authorized, an encryption algorithm is used for generating an encryption sequence (namely an algorithm sequence) generated based on the equipment machine code, the encryption sequence is returned to a ciphertext fusion module of the protected software to synthesize a ciphertext, decryption verification is carried out, software and hardware codes are formed for double verification, and whether the protected software is started or not is controlled. And allows the host to subsequently remotely access, data exchange with, the slave device.
And the software dongle returns to the protected software ciphertext fusion module after generating an algorithm sequence based on the initial value password.
In step S4, the method for synthesizing the ciphertext includes: and fusing the encryption sequence based on the built-in initial value password and the encryption sequence generated based on the equipment machine code in a protected software ciphertext fusion module according to a certain mode, and generating a new algorithm sequence after sequence fusion calculation. And then carrying out decryption, verification and verification on the fused encryption sequence in an application program execution code ciphertext decryption module.
Specifically, an encryption sequence based on the built-in initial value password and an encryption sequence generated based on the equipment machine code are fused in a protected software ciphertext fusion module according to a sequence splicing and fusing mode.
The method for the protected software to decrypt, check and verify the fused encryption sequence is different from the conventional general encryption and decryption algorithm between the parts and is an additionally designed method.
The decryption verification method of the invention is to compare the encryption algorithm with the original value after reverse decryption, and mainly verify the consistency of the algorithms used by all equipment.
The execution code decrypts the synthesized algorithm sequence, verifies that the decryption result is consistent with the original value, verifies that the hardware equipment and the software equipment are authorized after passing the verification, and executes the application program; otherwise, the program does not run.
And S5, when the protected software is started, executing the application program to generate random numbers as algorithm initial values, randomly generating number sequences and transmitting the number sequences to the software dongle, carrying out encryption algorithm operation on the received sequences by the software dongle to generate algorithm encryption sequences twice, transmitting the algorithm encryption sequences back to the protected software, and modifying the initial values of the built-in passwords of the protected software for the next verification.
And the protected software replaces the initial value of the internal password by using the algorithm sequence returned by the software dongle, and stores the initial value for the next use to finish a software protection mechanism based on algorithm encryption and collaborative verification.
In the verification process, various modes are guaranteed, the initial value of the built-in password of the protected software can be updated every time, the protected software is prevented from being tracked and cracked, and the capability of the mechanism for protecting the software is improved.
And step S3 to step S5, the software and hardware verification supplements each other, the protected software cannot be normally used no matter which link is lost, meanwhile, the hardware equipment verification can ensure the safety of the slave equipment, the unauthorized equipment is denied access, and the safety of the remote server is effectively protected.
The invention also includes: hardware machine code acquisition mechanisms for protected software. The hardware machine code includes various parameters and state descriptions of the current hardware.
The invention utilizes the encryption algorithm to encrypt the communication data of the slave equipment, the software dongle and the protected software, utilizes the built-in software password and the hardware equipment as initial values to carry out encryption and decryption verification, and then updates the built-in software password, thereby improving the anti-cracking capability.
According to the invention, an encryption and decryption algorithm is formulated among protected software, a software dongle and slave equipment, and through algorithm transmission, the returned decryption data and the stored data are compared and verified, if the verification is successful, the software is considered to be operated as an authorized behavior, the protected software is allowed to access the slave equipment, the protection performance of the software is greatly improved, and meanwhile, the safety of the slave equipment can also be protected.
Claims (7)
1. A software protection mechanism and a data exchange method based on collaborative verification are characterized by comprising the following steps:
s1, an encryption and decryption algorithm mechanism is agreed among the protected software, the slave equipment and the software dongle;
s2, inserting the software dongle into the main equipment for the protected software to run;
s3, the protected software and the software dongle encrypt the same random number, and verify whether the ciphertext is consistent to judge the validity of the software dongle;
s4, if the dongle is a legally authorized dongle, transmitting the built-in initial value password of the protected software to the dongle, generating an encryption sequence based on the built-in initial value password, and returning the encryption sequence to the protected software; meanwhile, hardware machine code verification is carried out, and whether the hardware equipment is authorized or not is judged;
if the hardware equipment is authorized, generating an encryption sequence generated based on the equipment machine code, returning the encryption sequence to the protected software to synthesize a ciphertext, and carrying out decryption verification so as to control whether the protected software is started or not;
and S5, when the protected software is started, the protected software randomly generates a sequence and transmits the sequence to the software dongle, and the software dongle generates an encryption sequence by operating the received sequence through an encryption algorithm and transmits the encryption sequence back to the protected software to modify the initial value of the built-in password of the protected software.
2. The collaborative authentication-based software protection mechanism and data exchange method according to claim 1, wherein the step S3 includes the following steps:
s31, the protected software generates a random number initial value, and the random initial value is encrypted by using an encryption algorithm to generate an encryption sequence; meanwhile, the initial value of the random number is transmitted to a software dongle, and the software dongle performs encryption operation through an encryption algorithm and transmits the encrypted value back to the protected software;
and S32, verifying the received encryption operation sequence of the softdog and the encryption sequence generated by the protected software, and judging the legality of the softdog according to the verification result.
3. The collaborative verification-based software protection mechanism and data exchange method according to claim 2, wherein the initial random number value is generated by a random function generator of the protected software, and the initial random number value is transmitted to a built-in algorithm sequence generation module of the protected software as an initial algorithm value;
an encryption sequence based on random numbers generated by a random function generator is generated by an algorithm sequence generation module and is transmitted to an algorithm sequence verification module;
and the software dongle transmits the encryption algorithm sequence generated after the algorithm initial value is subjected to algorithm operation into the algorithm sequence verification module.
4. The cooperative verification-based software protection mechanism and data exchange method as claimed in claim 1, wherein in step S4, the hardware machine code checking method is as follows: and transmitting the machine code of the hardware to the slave equipment, and checking the machine code of the hardware.
5. The cooperative verification-based software protection mechanism and data exchange method as claimed in claim 1, wherein in step S4, the method for synthesizing the ciphertext comprises: and fusing the encryption sequence based on the built-in initial value password and the encryption sequence generated based on the equipment machine code in the protected software ciphertext fusing module.
6. The cooperative authentication-based software protection mechanism and data exchange method according to claim 1, wherein the protected software, the slave device and the dongle are installed with encryption and decryption algorithm drivers.
7. The collaborative authentication-based software protection mechanism and data exchange method according to claim 1, further comprising: a hardware machine code acquisition mechanism for protected software; the hardware machine code includes various parameters and state descriptions of the current hardware.
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Cited By (1)
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| CN117056879A (en) * | 2023-10-13 | 2023-11-14 | 西安热工研究院有限公司 | Distributed control system trusted policy start-stop authorization method and system |
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