CN113434322A - Solid state disk safety management method based on watchdog - Google Patents
Solid state disk safety management method based on watchdog Download PDFInfo
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- CN113434322A CN113434322A CN202110710433.6A CN202110710433A CN113434322A CN 113434322 A CN113434322 A CN 113434322A CN 202110710433 A CN202110710433 A CN 202110710433A CN 113434322 A CN113434322 A CN 113434322A
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- watchdog
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- state disk
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0751—Error or fault detection not based on redundancy
- G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
- G06F11/0757—Error or fault detection not based on redundancy by exceeding limits by exceeding a time limit, i.e. time-out, e.g. watchdogs
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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
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
- G06F21/79—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention discloses a watchdog-based solid state disk safety management method, wherein the solid state disk safety management device comprises a switch function module (a switch function unit) and a real-time setting module (a real-time setting unit), and the steps of S1: initializing watchdog trigger times N and watchdog query interval time T by the solid state disk; step S2: waiting for T time; step S3: if the solid state disk receives the watchdog signal, the operation is permitted, the count a is 0, step S2 is turned, otherwise, step S4 is turned; step S4: if a > is N, the operation is prohibited, let a be a, go to step S2; otherwise, let a be a +1, go to step S2. The method has the advantages of simple principle, easy realization, simple and convenient operation, capability of eliminating the hidden trouble that manual operation protection is easy to forget, and wider application scenes.
Description
Technical Field
The invention relates to the technical field of memories, in particular to a watchdog-based solid state disk security management method.
Background
The solid state disk is a memory with a nonvolatile data storage function, has the advantages of high reading and writing speed, large storage capacity and the like, and is widely used for mass data storage; but the view, modification and deletion of the stored data need to be limited, otherwise the key data is easy to be stolen, modified or deleted.
For this reason, many practitioners in the industry propose a security management scheme for solid state disks, so as to solve the security problem of the solid state disks. For example, the scheme disclosed in the chinese patent application "solid state disk based on automatic locking write protect function": the data writing function of the solid state disk is closed by authorizing a user to send a locking instruction, so that the key data is prevented from being rewritten or erased. According to the scheme, the solid state disk can be locked by the data writing function through the locking instruction, and the safety problem of the solid state disk is solved to a certain extent.
However, the above method requires manual initiative sending of the locking instruction, which has a hidden danger of forgetting; in addition, in an application scenario such as monitoring video recording, when data needs to be written continuously while unattended, it is impossible to prevent the video data from being rewritten or erased.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the technical problems in the prior art, the invention provides the watchdog-based solid state disk safety management method which is simple in principle, easy to implement and simple and convenient to operate.
In order to solve the technical problems, the invention adopts the technical scheme that:
a security management method of a solid state disk based on a watchdog, wherein the security management method of the solid state disk adopts a watchdog access authorization mechanism for read operation, write operation or deletion operation of the solid state disk, thereby realizing security management of the solid state disk; the method comprises the following steps:
step S1: initializing a watchdog trigger time N and a watchdog query interval time T by the solid state disk, wherein N is a natural number, and the trigger time initialization count a is 0;
step S2: waiting for T time;
step S3: if the solid state disk receives the watchdog signal, allowing a read operation, a write operation or a delete operation on the solid state disk, and turning to step S2, if the count a is 0; otherwise go to step S4;
step S4: if a > is N, forbidding the read operation, the write operation or the delete operation of the solid state disk, and turning to step S2; otherwise, let a be a +1, go to step S2.
As a further improvement of the invention: for operations related to the safety of the solid state disk, such as read operation, write operation, deletion operation and the like of the solid state disk, independent watchdog access authorization can be respectively carried out. That is, the read operation, the write operation, the delete operation and other operations related to the security of the solid state disk can be independently provided with independent watchdog access mechanisms. It is understood that, in other embodiments, operations such as merging may be performed according to the division of the operation function tasks, so that two or more operations share one watchdog access mechanism.
As a further improvement of the invention: when the solid state disk works normally, whether the watchdog access authorization is opened or not can be configured. That is to say, the watchdog access mechanism in the present invention has an independent switch function module (switch function unit), and can be controlled to be in an on or off state in a form of hardware or software. For example, when the solid state disk normally works, and the watchdog access authorization for closing the read operation, the write operation or the delete operation, the read operation, the write operation or the delete operation of the solid state disk is not limited. When the watchdog access authorization of the read operation, the write operation or the delete operation is opened, the watchdog access authorization is required for the read operation, the write operation or the delete operation of the solid state disk.
As a further improvement of the invention: the watchdog access mechanism in the invention is provided with a real-time setting module (real-time setting unit), namely, when the solid state disk normally works, an operator can configure the watchdog trigger time N and the watchdog query interval time T at any time. That is, the operator can set the number N of watchdog triggers and the watchdog polling interval T at any time according to actual needs.
As a further improvement of the invention: the watchdog signal can be designed to be sent by a software program according to actual needs, or can be sent by a hardware circuit (such as a trigger circuit of a USB interface) or other known watchdog trigger modes.
As a further improvement of the invention: according to actual needs, the watchdog signal can be triggered manually, pulse signals, periodic signals, passwords and the like, and the solid state disk can detect the signal. If the signal is not in accordance with the requirement, judging that the watchdog signal is not received; if the signal meets the requirements, the watchdog signal is judged to be received. Further, the password may be a static password, a dynamic password, an interactive password, or a password of other known methods.
As a further improvement of the invention: for a video monitoring scene, the invention can only carry out watchdog access authorization on deletion operation, thereby ensuring the integrity of records and being convenient for checking; for the sensitive data collected continuously, the watchdog access authorization can be carried out on the read operation and the delete operation, so that illegal reading and deletion are prevented, and the addition of new data is not influenced.
Compared with the prior art, the invention has the advantages that:
the watchdog-based solid state disk safety management method is simple in principle, easy to implement, simple and convenient to operate, capable of eliminating hidden danger that operation protection is easy to forget when performed manually, and wide in application range. The read operation, the write operation and the delete operation of the solid state disk can be respectively subjected to independent watchdog access authorization, and can also be combined, so that the flexibility is higher. Meanwhile, the invention further enables the user to set in real time according to own habits, occasion requirements and other own requirements at any time.
Drawings
FIG. 1 is a schematic flow diagram of the process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
Examples
A security management method of a solid state disk based on a watchdog, wherein the security management method of the solid state disk adopts a watchdog access authorization mechanism for read operation, write operation or deletion operation of the solid state disk, thereby realizing security management of the solid state disk; the method comprises the following steps:
step S1: initializing a watchdog trigger time N and a watchdog query interval time T by the solid state disk, wherein N is a natural number, and the trigger time initialization count a is 0;
step S2: waiting for T time;
step S3: if the solid state disk receives the watchdog signal, allowing a read operation, a write operation or a delete operation on the solid state disk, and turning to step S2, if the count a is 0; otherwise go to step S4;
step S4: if a > is N, forbidding the read operation, the write operation or the delete operation of the solid state disk, and turning to step S2; otherwise, let a be a +1, go to step S2.
In a specific application example, the present invention preferably performs independent watchdog access authorization on operations related to the security of the solid state disk, such as read operation, write operation, and delete operation of the solid state disk. That is, the read operation, the write operation, the delete operation and other operations related to the security of the solid state disk can be independently provided with independent watchdog access mechanisms. It is understood that, in other embodiments, operations such as merging may be performed according to the division of the operation function tasks, so that two or more operations share one watchdog access mechanism.
In a specific application example, the present invention preferably configures whether to open the watchdog access authorization when the solid state disk normally operates. That is, the watchdog access mechanism in the present invention has an independent switch function module (switch function unit), and the switch function module (switch function unit) can control the watchdog access mechanism to be in an on or off state in a form of hardware or software. For example, when the solid state disk normally works, and the watchdog access authorization for closing the read operation, the write operation or the delete operation, the read operation, the write operation or the delete operation of the solid state disk is not limited. When the watchdog access authorization of the read operation, the write operation or the delete operation is opened, the watchdog access authorization is required for the read operation, the write operation or the delete operation of the solid state disk.
In a specific application example, the present invention preferably further provides that the watchdog access mechanism in the present invention has a real-time setting module (real-time setting unit), and the real-time setting module (real-time setting unit) is configured such that an operator can configure the watchdog trigger time N and the watchdog query interval time T at any time when the solid state disk normally operates. That is, the operator can set the number N of watchdog triggers and the watchdog polling interval T at any time according to actual needs.
In a specific application example, the watchdog signal can be designed to be sent by a software program according to actual needs, or sent by a hardware circuit (such as a trigger circuit of a USB interface), and other known watchdog trigger modes.
In a specific application example, according to actual needs, the watchdog signal can be triggered manually, pulse signals, periodic signals, passwords and the like, and the solid state disk can detect the watchdog signal. If the watchdog signal does not meet the requirement, judging that the watchdog signal is not received; and if the watchdog signal meets the requirement, judging that the watchdog signal is received.
Further, the password may be a static password, a dynamic password, an interactive password, or a password in other known manners.
In a specific application example, further, for a video monitoring scene, the invention can only carry out watchdog access authorization on deletion operation, thereby ensuring the integrity of records and being convenient for viewing; for the sensitive data collected continuously, the watchdog access authorization can be carried out on the read operation and the delete operation, so that illegal reading and deletion are prevented, and the addition of new data is not influenced.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (5)
1. A watchdog-based solid state disk security management method comprises the following steps:
step S1: initializing a watchdog trigger time N and a watchdog query interval time T by the solid state disk, wherein N is a natural number, and the trigger time initialization count a is 0;
step S2: waiting for T time;
step S3: if the solid state disk receives the watchdog signal, allowing a read operation, a write operation or a delete operation on the solid state disk, and turning to step S2, if the count a is 0; otherwise go to step S4;
step S4: if a > is N, forbidding the read operation, the write operation or the delete operation of the solid state disk, and turning to step S2; otherwise, let a be a +1, go to step S2.
2. The watchdog-based solid state disk security management method according to claim 1, characterized in that: the watchdog access mechanism has an independent switch function module.
3. The watchdog-based solid state disk security management method according to claim 1, characterized in that: the watchdog access mechanism has a real-time setup module.
4. The watchdog-based solid state disk security management method according to claim 1, characterized in that: the watchdog signal is sent via a software program or a hardware circuit.
5. The watchdog-based solid state disk security management method according to claim 4, wherein: the hardware circuit is a trigger circuit of the USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110710433.6A CN113434322B (en) | 2021-06-25 | 2021-06-25 | Solid state disk safety management method based on watchdog |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110710433.6A CN113434322B (en) | 2021-06-25 | 2021-06-25 | Solid state disk safety management method based on watchdog |
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| CN113434322A true CN113434322A (en) | 2021-09-24 |
| CN113434322B CN113434322B (en) | 2023-03-21 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040250178A1 (en) * | 2003-05-23 | 2004-12-09 | Munguia Peter R. | Secure watchdog timer |
| US20060171453A1 (en) * | 2005-01-04 | 2006-08-03 | Rohlfing Thomas R | Video surveillance system |
| JP2011060173A (en) * | 2009-09-14 | 2011-03-24 | Fuji Xerox Co Ltd | Information storage control device, electronic equipment, image forming apparatus, and program |
| JP2011103051A (en) * | 2009-11-10 | 2011-05-26 | Toshiba Tec Corp | Information processor |
| CN103440466A (en) * | 2013-09-04 | 2013-12-11 | 上海斐讯数据通信技术有限公司 | Method for protecting hard disk of network device |
| CN108509813A (en) * | 2018-03-31 | 2018-09-07 | 北京联想核芯科技有限公司 | A kind of data processing method of safe solid state disk, device and safe solid state disk |
| CN110378149A (en) * | 2019-08-02 | 2019-10-25 | 河源市飞腾信息科技有限公司 | A kind of computer information security control apparatus |
| CN110874495A (en) * | 2018-08-31 | 2020-03-10 | 深圳市安信达存储技术有限公司 | Solid state disk based on automatic locking write protection function and tamper-proof method |
| US20200252430A1 (en) * | 2019-02-05 | 2020-08-06 | Sennco Solutions, Inc. | Integrated security monitoring via watchdog trigger locking |
-
2021
- 2021-06-25 CN CN202110710433.6A patent/CN113434322B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040250178A1 (en) * | 2003-05-23 | 2004-12-09 | Munguia Peter R. | Secure watchdog timer |
| US20060171453A1 (en) * | 2005-01-04 | 2006-08-03 | Rohlfing Thomas R | Video surveillance system |
| JP2011060173A (en) * | 2009-09-14 | 2011-03-24 | Fuji Xerox Co Ltd | Information storage control device, electronic equipment, image forming apparatus, and program |
| JP2011103051A (en) * | 2009-11-10 | 2011-05-26 | Toshiba Tec Corp | Information processor |
| CN103440466A (en) * | 2013-09-04 | 2013-12-11 | 上海斐讯数据通信技术有限公司 | Method for protecting hard disk of network device |
| CN108509813A (en) * | 2018-03-31 | 2018-09-07 | 北京联想核芯科技有限公司 | A kind of data processing method of safe solid state disk, device and safe solid state disk |
| CN110874495A (en) * | 2018-08-31 | 2020-03-10 | 深圳市安信达存储技术有限公司 | Solid state disk based on automatic locking write protection function and tamper-proof method |
| US20200252430A1 (en) * | 2019-02-05 | 2020-08-06 | Sennco Solutions, Inc. | Integrated security monitoring via watchdog trigger locking |
| CN110378149A (en) * | 2019-08-02 | 2019-10-25 | 河源市飞腾信息科技有限公司 | A kind of computer information security control apparatus |
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| CN113434322B (en) | 2023-03-21 |
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