CN106156550A - A kind of chip prevents the method cracked - Google Patents
A kind of chip prevents the method cracked Download PDFInfo
- Publication number
- CN106156550A CN106156550A CN201610517924.8A CN201610517924A CN106156550A CN 106156550 A CN106156550 A CN 106156550A CN 201610517924 A CN201610517924 A CN 201610517924A CN 106156550 A CN106156550 A CN 106156550A
- Authority
- CN
- China
- Prior art keywords
- chip
- data
- encryption data
- external memory
- encryption
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000005055 memory storage Effects 0.000 claims abstract description 12
- 238000005336 cracking Methods 0.000 claims abstract description 4
- 238000012795 verification Methods 0.000 claims description 5
- 210000000352 storage cell Anatomy 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Technology Law (AREA)
- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Storage Device Security (AREA)
Abstract
The invention discloses a kind of method that chip is prevented cracking; including being connected with chip and one external memory storage based on iic bus agreement needing defence program; external memory storage writes encryption data; when program is run; data in reading external memory part verify; check results the most then continues to run with, the inconsistent program the most out of service of check results.The present invention is further added by an encryption measures on the basis of the original anti-breaking techniques of chip, makes chip crack difficulty and strengthens, and then realizes the anti-of singlechip chip code and crack.
Description
Technical field
The present invention relates to stage lighting technical field, particularly relate to a kind of method that chip is prevented cracking.
Background technology
Single-chip microcomputer (MCU) typically has internal EEPROM/FLASH to deposit program and operational data for user.In order to prevent
Unauthorized access or the machine internal program of copy single-chip microcomputer, major part single-chip microcomputer all positions or encrypted byte with encryption lock,
With screening glass internal program.If encryption lock is locked when programming, just cannot directly read in single-chip microcomputer with common programmable device
Program, this is just single-chip microcomputer encryption or chip encryption.But, single-chip microcomputer assailant is by special equipment or home-built equipment, profit
With singlechip chip design on leak or software defect, by multiple technologies means, it is possible to break through single-chip microcomputer with encryption
Locking bit or encrypted byte, it is possible to from chip, extract key message, obtain single-chip microcomputer machine internal program.
Summary of the invention
For overcoming the defect of above-mentioned prior art, embodiment of the present invention technology to be solved is, it is provided that a kind of chip
The anti-method cracked, it can protect the program in singlechip chip machine well.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of chip prevents the method cracked, and comprises the steps:
S001 generates encryption data, and encryption data identity data based on chip calculates and generates；
S002 stores encryption data, encryption data is write and is stored in external memory storage；
S003 verifies encryption data, when running the program in chip, and calculation process identity data and encryption data respectively, and
Verifying operation result one by one, the most consistent then program continues executing with, and otherwise program determination runs.
Preferably, identity data and chip have unique one-to-one relationship.
Preferably, identity data is chip ID data.
Preferably, external memory storage is connected with chip based on iic bus agreement.
Preferably, it is saved in before encryption data is stored in external memory storage in the temporary storage cell in chip.
Preferably, when encryption data is completely written to external memory storage, the parts for having indicated change.
Preferably, the parts for having indicated are LED light.
Preferably, during verification encryption data, Identity data store is in the first memory element of chip.
Preferably, during verification encryption data, encryption data in chip reading external memory also stores it in chip
The second memory element in.
Implement the embodiment of the present invention, have the advantages that
By encryption data being stored in external memory storage, on the basis of the original anti-breaking techniques of chip, it is further added by one
Item encryption measures, makes chip crack difficulty and strengthens, and cracking cost increases.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that a kind of chip of the present invention prevents the method cracked.
Detailed description of the invention
The detailed description of the invention of the present invention is further illustrated below in conjunction with accompanying drawing.
A kind of chip of the present invention prevents that the method cracked completes the most in two stages:
One, chip registration step: then accreditation process is run by burning chip device write chip.Accreditation process is run
Time, first obtain n individual based on chip ID data, n data are put in temporary storage cell after series of computation, afterwards
Address A in the external memory device that data write after using iic bus agreement to process is connected with chip.For guaranteeing number
According to written into, after write completes, program can light a LED light.
Two, chip operating procedure: after accreditation process is correctly run, it would be desirable to the program write chip of protection.Program
When bringing into operation, first read n and based on chip ID data and put in the first memory element, then by external memory device address
Digital independent in A is also put in the second memory element, the first memory element is entered respectively with the data in the second memory element
Row operation processes.Data after processing in first memory element and the second memory element verify one by one, the most consistent the most then
The program of being verified continues executing with, and otherwise program determination runs.
In sum, a memory device based on iic bus agreement is connected by we with the chip needing encipherment protection
Connect.Writing encryption data in memory device, when program is run, the encryption data in reading memory device verifies, verification
Result the most then continues to run with program, inconsistent, shuts down procedure operation.
Above disclosed it is only one preferred embodiment of the present invention, certainly can not limit the power of the present invention with this
Profit scope, the equivalent variations therefore made according to the claims in the present invention, still belong to the scope that the present invention is contained.
Claims (9)
1. the method that a chip is prevented cracking, it is characterised in that described method comprises the steps:
S001 generates encryption data, and described encryption data identity data based on chip calculates and generates；
S002 stores encryption data, and described encryption data is write and is stored in external memory storage；
S003 verifies encryption data, when running the program in chip, and identity data described in calculation process and described encryption number respectively
According to, and verifying operation result one by one, the most consistent then program continues executing with, and otherwise program determination runs.
2. the method for claim 1, it is characterised in that described identity data and chip have unique one_to_one corresponding and close
System.
3. the method for claim 1, it is characterised in that described identity data is chip ID data.
4. the method for claim 1, it is characterised in that described external memory storage is based on iic bus agreement and chip phase
Connect.
5. the method for claim 1, it is characterised in that described encryption data preserves before being stored in described external memory storage
In temporary storage cell in chip.
6. the method for claim 1, it is characterised in that described encryption data is completely written to during described external memory storage use
Change in the parts indicated.
7. method as claimed in claim 6, it is characterised in that the described parts for having indicated are LED light.
8. the method for claim 1, it is characterised in that during verification encryption data, described Identity data store is at chip
The first memory element in.
9. the method for claim 1, it is characterised in that during verification encryption data, chip reads described external memory storage
In encryption data and store it in the second memory element of chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610517924.8A CN106156550A (en) | 2016-07-04 | 2016-07-04 | A kind of chip prevents the method cracked |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610517924.8A CN106156550A (en) | 2016-07-04 | 2016-07-04 | A kind of chip prevents the method cracked |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106156550A true CN106156550A (en) | 2016-11-23 |
Family
ID=58061114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610517924.8A Pending CN106156550A (en) | 2016-07-04 | 2016-07-04 | A kind of chip prevents the method cracked |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106156550A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106650894A (en) * | 2016-12-20 | 2017-05-10 | 珠海晶通科技有限公司 | Chip anti-cracking method |
| CN106777749A (en) * | 2016-12-29 | 2017-05-31 | 杭州朔天科技有限公司 | A kind of chip UID methods for designing based on embedded Nor Flash |
| CN106874775A (en) * | 2016-12-26 | 2017-06-20 | 深圳市风云实业有限公司 | A kind of Implementation of Embedded System method of anti-copying |
| CN106951746A (en) * | 2017-04-25 | 2017-07-14 | 厦门芯阳科技股份有限公司 | The anti-reversing crack method and system of a kind of temperature control class method |
| CN112231728A (en) * | 2020-10-20 | 2021-01-15 | 深圳市泰祺科技有限公司 | Design method, device and equipment for anti-cracking chip and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163269A (en) * | 2011-04-02 | 2011-08-24 | 刘俊 | Method for preventing singlechip program from being decrypted and reused |
| CN103246832A (en) * | 2012-02-14 | 2013-08-14 | 新唐科技股份有限公司 | Microprocessor chip with anti-copy function and recording system thereof |
| CN103365689A (en) * | 2013-07-04 | 2013-10-23 | 青岛海信宽带多媒体技术有限公司 | Singlechip parallel burning method |
| CN104537320A (en) * | 2014-12-05 | 2015-04-22 | 深圳市雷赛软件技术有限公司 | Automatic encrypting method and system for chip |
| CN104536774A (en) * | 2014-11-20 | 2015-04-22 | 成都九洲迪飞科技有限责任公司 | Chip software burning method |
-
2016
- 2016-07-04 CN CN201610517924.8A patent/CN106156550A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163269A (en) * | 2011-04-02 | 2011-08-24 | 刘俊 | Method for preventing singlechip program from being decrypted and reused |
| CN103246832A (en) * | 2012-02-14 | 2013-08-14 | 新唐科技股份有限公司 | Microprocessor chip with anti-copy function and recording system thereof |
| CN103365689A (en) * | 2013-07-04 | 2013-10-23 | 青岛海信宽带多媒体技术有限公司 | Singlechip parallel burning method |
| CN104536774A (en) * | 2014-11-20 | 2015-04-22 | 成都九洲迪飞科技有限责任公司 | Chip software burning method |
| CN104537320A (en) * | 2014-12-05 | 2015-04-22 | 深圳市雷赛软件技术有限公司 | Automatic encrypting method and system for chip |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106650894A (en) * | 2016-12-20 | 2017-05-10 | 珠海晶通科技有限公司 | Chip anti-cracking method |
| CN106874775A (en) * | 2016-12-26 | 2017-06-20 | 深圳市风云实业有限公司 | A kind of Implementation of Embedded System method of anti-copying |
| CN106874775B (en) * | 2016-12-26 | 2020-07-07 | 深圳市风云实业有限公司 | Method for realizing anti-copy embedded system |
| CN106777749A (en) * | 2016-12-29 | 2017-05-31 | 杭州朔天科技有限公司 | A kind of chip UID methods for designing based on embedded Nor Flash |
| CN106951746A (en) * | 2017-04-25 | 2017-07-14 | 厦门芯阳科技股份有限公司 | The anti-reversing crack method and system of a kind of temperature control class method |
| CN112231728A (en) * | 2020-10-20 | 2021-01-15 | 深圳市泰祺科技有限公司 | Design method, device and equipment for anti-cracking chip and storage medium |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |