CN102521167A - USB (universal serial bus) electronic information anti-disclosure memory device and method - Google Patents
USB (universal serial bus) electronic information anti-disclosure memory device and method Download PDFInfo
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- CN102521167A CN102521167A CN2011104239304A CN201110423930A CN102521167A CN 102521167 A CN102521167 A CN 102521167A CN 2011104239304 A CN2011104239304 A CN 2011104239304A CN 201110423930 A CN201110423930 A CN 201110423930A CN 102521167 A CN102521167 A CN 102521167A
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Abstract
A USB (universal serial bus) electronic information anti-disclosure memory device comprises a microprocessor, a volatile memory, an internal power source, a USB communication interface and a manual switch. The memory device provides a safer memory space for local temporary data, temporary electronic information stored on the memory device can be truly unrecoverable, and the memory device is convenient to carry and adopts safer memory media, so that disclosure of secret information can be avoided, and external information can be prevented from infiltrating into a secret system by means of safe clearing during cross use in a non-secret environment and a secret environment.
Description
Technical field
The present invention relates to the anti-scheme of divulging a secret of electronic information, safe storage space is provided, belong to field of computer information security in particular for anti-the divulging a secret of electronic information.
Background technology
Electronic information is meant that electronic equipments such as utilizing computing machine generates, with the fileinfo record of the literal of store, icon, image, audio frequency, video etc.Electronic information is movable true records such as enterprise production, technology, scientific research and operation as a kind of information resources, is and the intangible asset of enterprise's synchronized development to bring into play important effect in each side such as business administrations.
In the electronic information security management process, especially classified information is concentrated under the management and control environment, and bulk information or temporary information are kept at local or external unit, and these equipment all are non-volatile memory mediums, all are can long preservation and recoverable medium.Reach electronic information this locality and do not divulge a secret, the storage space of a safer electronic information must be provided, it is irrecoverable that the electronic information of preserving on it is removed the back.
USB flash disk is a kind of common electron communication and the portable equipment of preservation, but the storage medium of USB flash disk is non-volatile, and the electronic information of preserving on it has the quite long holding time.Although can adopt technology such as encryption, authentication, removing, as a kind of non-volatile media, utilize USB flash disk to come alternating electron information to appoint the risk that so can have leakage information, all there is stronger restorability in theory.Therefore press for a kind of can being easy to carry and use, information can not be preserved and memory device that can Safety Sweep for a long time, for anti-the divulging a secret of electronic information provides safe storage space.
Summary of the invention
The purpose of this invention is to provide a kind of USB electronic information anti-divulge a secret memory device and method, the electronic information removing back of realizing being kept in the said memory device is irrecoverable.
The anti-memory device of divulging a secret of USB electronic information of the present invention comprises microprocessor, volatile memory, built-in power, usb communication interface and hand switch.Said microprocessor is connected with hand switch with volatile memory, built-in power, usb communication interface respectively; Said built-in power is connected with microprocessor with volatile memory, usb communication interface respectively, and said volatile memory is connected with the usb communication interface.
Said volatile memory adopts volatile storage medium to preserve electronic information, and for the safety of electronic information exchanges and local temporary space is provided, a kind of state that can not estimate will lost or place to information after the power down;
Said microprocessor is carried out electronic information security removing work, adopts clear 0 covering to write, and means such as replacement are placed in the asemantic state that dispatches from the factory that is similar in the volatile storage medium;
Said built-in power USB interface do not insert or the situation of power down under, provide power supply to accomplish Safety Sweep work to microprocessor; Said built-in power also provides power supply to volatile storage medium, supplies this storage medium to keep electronic information at certain hour and does not lose;
Said USB interface is for volatile storage medium externally provides input, output interface circuit.Said USB interface also provides charging circuit to built-in power, and to volatile storage medium the external power supply interface is provided;
Said hand switch through external pushbutton switch circuit is provided, is accomplished manual safety removing work with microprocessor alternately.
The present invention also provides the anti-method of divulging a secret of the anti-memory device of divulging a secret of said USB electronic information, and said method comprises step:
Detect said memory device and whether satisfy the electronic information cleared condition, said electronic information cleared condition comprise regularly checkout time arrive, manually remove and the internal battery electric weight low;
If reach the electronic information cleared condition, the electronic information in the said memory device on the Volatile media is eliminated;
Said memory device power down, the electronic information in this memory device on the Volatile media can be lost.
Beneficial effect of the present invention is: the storage space of a safer local ephemeral data is provided, and the interim electronic information of preserving on the said memory device can reach truly irrecoverable; This memory device is easy to carry, and adopts safer storage medium, in non-concerning security matters environment and the use of concerning security matters environment intersection, through Safety Sweep, both can avoid the leakage of classified information, also can avoid external information to infiltrate through the concerning security matters system.
Description of drawings
Fig. 1 is the anti-memory device general structure synoptic diagram of divulging a secret of USB electronic information of the present invention;
Fig. 2 is the store status and the removing trigger condition of electronic information in the anti-memory device of divulging a secret of USB electronic information of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further description.
As shown in Figure 1; According to the anti-memory device of divulging a secret of USB electronic information of the present invention; Comprise the microprocessor 1 that is used to control electronic information storage, transmission and Safety Sweep work, be used for the storer 2 of electronic information storage, built-in power 3; Pushbutton switch 4, and the USB interface 5 that is used to provide external power supply and data input, output interface.Wherein, said microprocessor 1 is connected with storer 2, built-in power 3, hand push button switch 4 and USB interface 5 respectively; Storer 2 adopts volatile storage medium, and a kind of state that can not estimate will lost or place to information after the power down; When no external power source inserted, said built-in power 4 is respectively microprocessor 1 provided power supply to be provided with accomplishing Safety Sweep work with storer 2.
Shown in Figure 2 is store status and the trigger condition thereof of electronic information in present device; When the USB interface that does not insert charged source or built-in power do not have electricity; A kind of unpredictable state can lost or place to the electronic information that is kept in the volatile storage medium, thereby strengthen the difficulty of recovering electronic information.The trigger condition that electronic information is removed comprises that regularly checkout time arrives, manually remove and the internal battery electric weight low, when arbitrary condition reached, factory state is removed or returned to electronic information automatically.
Claims (4)
1. a USB electronic information prevents divulging a secret memory device, and it is characterized in that: said memory device comprises microprocessor, volatile memory, built-in power, usb communication interface and hand switch;
Said microprocessor is connected with hand switch with volatile memory, built-in power, usb communication interface respectively; Said built-in power is connected with microprocessor with volatile memory, usb communication interface respectively, and said volatile memory is connected with the usb communication interface.
2. the anti-memory device of divulging a secret of USB electronic information as claimed in claim 1; It is characterized in that said volatile memory adopts Volatile media to preserve electronic information; After power down or electronic information cleared condition reached, the electronic information on the said Volatile media can lose or be eliminated.
3. the anti-method of divulging a secret of the anti-memory device of divulging a secret of the described USB electronic information of claim 1 is characterized in that may further comprise the steps:
(1) detects said memory device and whether satisfy the electronic information cleared condition;
(2) if reach the electronic information cleared condition, the electronic information in the said memory device on the Volatile media is eliminated;
(3) said memory device power down, the electronic information in the memory device on the Volatile media can be lost.
4. the anti-method of divulging a secret of the anti-memory device of divulging a secret of USB electronic information as claimed in claim 3, it is characterized in that said electronic information cleared condition comprise that regularly checkout time arrives, manually remove and the internal battery electric weight low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110423930.4A CN102521167B (en) | 2011-12-18 | 2011-12-18 | USB (universal serial bus) electronic information anti-disclosure memory device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110423930.4A CN102521167B (en) | 2011-12-18 | 2011-12-18 | USB (universal serial bus) electronic information anti-disclosure memory device and method |
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| Publication Number | Publication Date |
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| CN102521167A true CN102521167A (en) | 2012-06-27 |
| CN102521167B CN102521167B (en) | 2015-07-08 |
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| CN201110423930.4A Active CN102521167B (en) | 2011-12-18 | 2011-12-18 | USB (universal serial bus) electronic information anti-disclosure memory device and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162803A (en) * | 2015-09-30 | 2015-12-16 | 深圳市金城保密技术有限公司 | Safe information output method and safe information output system of secret-relating network |
| CN109063517A (en) * | 2018-06-27 | 2018-12-21 | 湖北师范大学 | A kind of electronic information equipment and its operating method |
| US10216967B2 (en) * | 2017-07-25 | 2019-02-26 | The United States Of America As Represented By The Secretary Of The Navy | Volatile memory-based data-transfer device with automatic and user-initiated anti-tamper penalties |
| TWI662548B (en) * | 2018-01-23 | 2019-06-11 | 緯創資通股份有限公司 | Data management circuit |
| CN110135173A (en) * | 2019-04-19 | 2019-08-16 | 珠海海奇半导体有限公司 | A kind of data destruction method of data storage device and data storage device |
| CN110135203A (en) * | 2019-04-19 | 2019-08-16 | 珠海海奇半导体有限公司 | A kind of Mass Data Storage Facility and its data destruction method |
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| CN1985244A (en) * | 2005-06-24 | 2007-06-20 | 捷讯研究有限公司 | System and method for managing memory in a mobile device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105162803A (en) * | 2015-09-30 | 2015-12-16 | 深圳市金城保密技术有限公司 | Safe information output method and safe information output system of secret-relating network |
| US10216967B2 (en) * | 2017-07-25 | 2019-02-26 | The United States Of America As Represented By The Secretary Of The Navy | Volatile memory-based data-transfer device with automatic and user-initiated anti-tamper penalties |
| TWI662548B (en) * | 2018-01-23 | 2019-06-11 | 緯創資通股份有限公司 | Data management circuit |
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| CN110135173A (en) * | 2019-04-19 | 2019-08-16 | 珠海海奇半导体有限公司 | A kind of data destruction method of data storage device and data storage device |
| CN110135203A (en) * | 2019-04-19 | 2019-08-16 | 珠海海奇半导体有限公司 | A kind of Mass Data Storage Facility and its data destruction method |
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| Publication number | Publication date |
|---|---|
| CN102521167B (en) | 2015-07-08 |
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Effective date of registration: 20190117 Address after: 710043 No. 2 South Park Road, Beilin District, Xi'an City, Shaanxi Province Patentee after: Zhang Yong Address before: 710075 27 floors, G Block, Wangzuo Modern City, 35 Tangyan Road, Xi'an High-tech Zone, Shaanxi Province Patentee before: Xi'an Angelltech Co., Ltd. |