CN108121919A - A kind of encryption apparatus - Google Patents
A kind of encryption apparatus Download PDFInfo
- Publication number
- CN108121919A CN108121919A CN201810030039.6A CN201810030039A CN108121919A CN 108121919 A CN108121919 A CN 108121919A CN 201810030039 A CN201810030039 A CN 201810030039A CN 108121919 A CN108121919 A CN 108121919A
- Authority
- CN
- China
- Prior art keywords
- power supply
- encryption apparatus
- supply unit
- zero setting
- component
- 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.)
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Classifications
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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
-
- 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
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
Abstract
The invention discloses a kind of encryption apparatus, including：Storage unit, for storing sensitive information for a long time；Zero setting component is connected with metal shell body, for detecting whether metal shell body is disassembled, if so, the sensitive data zero setting that storage unit is stored；Power supply unit, for powering for consuming parts；Wherein, consuming parts include：Zero setting component and storage unit, the device can realize protection when outer housing is illegally dismantled to sensitive information conscientiously while the long-term preservation of sensitive information is ensured.
Description
Technical field
The present invention relates to information security field, more particularly to a kind of encryption apparatus.
Background technology
Encryption apparatus refers to the combination of the hardware, software, firmware of the functions such as realization crypto-operation, key management, main application
It is that the sensitive data wherein stored is protected not to be illegally stolen.The storage of sensitive information mainly includes two kinds of sides in encryption apparatus
Formula, interim storage and permanent storage.Interim storage, power down is lost, safer.Permanent storage, power down is not lost, easily illegal
It accesses.Ephemeral data, the data generated when being normal work, can be responsible for zero setting by main control chip.And need what is stored for a long time
Data are unable to control there are still, main control chip during power down, it is necessary to there is special response circuit, it are protected, is prevented non-
Method accesses.Under normal circumstances, the sensitive data stored in encryption apparatus is mostly to need the data stored for a long time.
Encryption apparatus generally comprises 4 safe classes, is respectively 1,2,3,4 grades, and the requirement of 1 to 4 level securities is incremented by step by step, close
The sensitive security parameter or data stored in code device is also even more important.
It is pointed out in physical security in China's password professional standard, 3 grades or more of crypto module safety needs physical protection,
That is shell, and for unauthorized access, it is necessary to have corresponding dismounting response and nulling circuit, to protect sensitive information, still, mesh
It is preceding not there is a kind of effective device to implement above-mentioned function.
Therefore, while how ensureing the long-term preservation of sensitive information, realize conscientiously when outer housing is illegally dismantled to quick
Feel the protection of information, be those skilled in the art's technical issues that need to address.
The content of the invention
The object of the present invention is to provide a kind of encryption apparatus, which can ensure that preserving for a long time for sensitive information is same
When, protection when outer housing is illegally dismantled to sensitive information is realized conscientiously.
In order to solve the above technical problems, the present invention provides a kind of encryption apparatus, including：
Storage unit, for storing sensitive information for a long time；
Zero setting component is connected with metal shell body, for detecting whether the metal shell body is disassembled, if so, will
The sensitive data zero setting of the storage unit storage；
Power supply unit, for powering for consuming parts；Wherein, the consuming parts include：The zero setting component and institute
State storage unit.
Preferably, the storage unit is specially：Low-power consumption random access memory.
Preferably, the encryption apparatus further includes：Not enough power supply indicating member, the not enough power supply indicating member with it is described
Power supply unit connects, for detecting whether remaining capacity is less than power threshold, if so, sending alarm signal.
Preferably, the encryption apparatus further includes：Alarm, the alarm are used to receive the not enough power supply warning part
The alarm signal of part, makes alarm.
Preferably, the encryption apparatus further includes：Electric power detection component is connected with the power supply unit, for examining in real time
Survey the remaining capacity of the power supply unit.
Preferably, the encryption apparatus further includes：Electricity display unit, the electricity display unit and the electric power detection
Component connects, for showing the remaining capacity of the power supply unit.
Preferably, the zero setting component is additionally operable to, when detecting that the metal shell body is disassembled, send alarm signal.
Preferably, the power supply unit is specially：Dual power supply component.
Encryption apparatus provided by the present invention includes storage unit, zero setting component and power supply unit.Wherein storage unit
For storing sensitive information for a long time, zero setting component is connected with storage unit and metal shell body, when detecting metal shell body
When being disassembled, the sensitive information zero setting in memory module is deleted by zero setting, power supply unit is use all in encryption apparatus
Electrical components is powered.By the way that metal shell to be designed to a part for nulling circuit, zero setting component monitors outer housing in real time is
It is no to be disassembled.Monitor whether outer housing is disassembled in real time by zero setting component, if so, sensitive information is deleted in time, you can
The protection when outer housing is illegally dismantled to sensitive information is realized, in addition, storage unit is that can realize the portion stored for a long time
Part, therefore, the present invention can ensure sensitive information it is long-term preserve while, realize conscientiously when outer housing is illegally dismantled pair
The purpose of the protection of sensitive information.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structure diagram of encryption apparatus provided in an embodiment of the present invention；
Fig. 2 is the electrical block diagram of zero setting component provided in an embodiment of the present invention；
Fig. 3 is the electrical block diagram of power supply unit provided in an embodiment of the present invention；
Fig. 4 is the particular circuit configurations schematic diagram of power supply unit provided in an embodiment of the present invention and zero setting component；
Fig. 5 is not enough power supply component provided in an embodiment of the present invention and power supply unit, zero setting component and storage unit
Connection diagram；
Fig. 6 is not enough power supply indicating member provided in an embodiment of the present invention and power supply unit and the circuit knot of zero setting component
Structure schematic diagram.
Specific embodiment
The core of the present invention is to provide a kind of encryption apparatus, which can ensure that preserving for a long time for sensitive information is same
When, protection when outer housing is illegally dismantled to sensitive information is realized conscientiously.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without making creative work belong to the scope of protection of the invention.
It please refers to Fig.1, Fig. 1 is the structure diagram of encryption apparatus provided in an embodiment of the present invention；The device can include：It deposits
Store up component 100, zero setting component 200 and power supply unit 300.
Storage unit 100 is mainly used for storing sensitive information for a long time.Wherein, sensitive data can generally include key, in
Between operational data and the data to play a key effect to information security involved in some other password professional standard etc.,
This does not limit the data type, size and content that are specifically stored in storage unit.
Storage unit 100 need to store sensitive information for a long time, ensure the permanently effective readable of sensitive information, right at this
The concrete model of storage unit does not limit, and at present, the mode stored for a long time to data can be generally divided into two kinds, one kind
It is that storage chip supports power down not lose in itself, such as EEPROM, FLASH chip are all this types.Another is not prop up
Hold chip+continuation of the journey battery of power down preservation.Itself supports the storage chip store function that power down is not lost that can be not required in itself
Power supply unit 300 is powered, but its zero-setting operation, it is necessary to by main control chip carry out, it is necessary to power consumption it is higher, and password fill
It puts in the case where no external power supply is powered, it is necessary to ensure that zero setting strategy keeps effective, this hair under limited electricity
Storage unit 100 in bright can select the latter.
In order to reduce the required electricity of preservation state for keeping sensitive information, when increasing the information storage of unit quantity of electricity
Between, it is preferable that storage unit is specifically as follows：Low-power consumption random access memory, i.e. low-power consumption RAM.Using low-power consumption RAM into
Power supply unit 300 is needed just to can guarantee the long-term storage of data for its power supply during row storage, once it powers off, the number stored in RAM
According to will lose.Specifically, the model of low-power consumption RAM does not limit herein, can be F-RAM, 6116 (2KB), 6264
(8KB), 62128 (16KB), 62256 (32KB) etc., can voluntarily determine as needed.
Zero setting component 200 is between storage unit 100 and power supply unit 300, for controlling the break-make of power supply.Password fills
The metal shell body put is a part for nulling circuit, by being to judge metal shell to the real-time detection of metal shell state
No to be disassembled, when metal shell is disassembled, possible someone thinks illegally to read storage unit 100 by way of tolling breakdown outer housing
The sensitive information of middle storage.When metal shell is disassembled, the working condition of nulling circuit can be changed, so as to be supplied to storage part
The power supply of part is gone off by turning on, since storage unit 100 selects the chip that does not preserve of power down, when detecting metal shell quilt
The power supply for being supplied to storage unit 100 is disconnected during dismounting, so as to which the content power down in storage unit is lost, reaches the effect of clearing
Fruit.Using metal shell as a part for nulling circuit, than using the devices such as elastic sheet switch, there is higher reliability.
The particular circuit configurations form of specific zero setting component 200 does not limit herein, can realize when to metal shell
The state of body is monitored and can realize the control to power supply, for example, the physical circuit form of zero setting component can be as
Shown in Fig. 2, zero setting component 200 includes metal shell (H1, H2 are metal shell and the contact point of PCB), PMOS M1, Yi Jishang
Pull-up resistor R156.Metal shell is conductor, contacts good, H1 in metal shell, H2 is 0 potential, and the G of PMOS is extremely
0 voltage, the D poles of PMOS are turned on S poles, and SM_3V is approximately equal to MUX_3V.Wherein SM_3V is the power supply of RAM.At this time in RAM
Content will not lose.When being dismantled to metal shell, H1 points are disconnected with H2 points, and the G poles of PMOS are pulled to MUX_3V, S
Pole and D poles disconnect, and SM_3V is about 0V, and the content in RAM is zeroed out.
Power supply unit 300 is used to be powered for the consuming parts in encryption apparatus, including storage unit 100 and zero setting
Component 200 etc..The concrete model of power supply unit 300 does not limit, to ensure that power supply unit 300 can be unlikely in encryption apparatus
It is powered off in arbitrary movement, power supply unit 300 is generally button cell.
The cruising ability of battery is limited.Even low-power consumption RAM, also there is comparable power consumption in when work.To ensure battery
Service life, it is preferable that power supply unit is specifically as follows：Dual power supply component.Power supply unit uses dual power supply, and dual power supply includes master
Power supply and battery.When encryption apparatus normal power supply, i.e., encryption apparatus by the modes such as grafting and other with stabilized power source
It during the equipment connection of component, can be powered by equipment connected to it, be powered using main power source to RAM, when password fills
When putting individualism, i.e., it can be not other devices of its power supply, when main power source is not powered, be set using battery to electricity consumption therein
Available electricity, at this time the data in RAM be in hold mode, it is necessary to power consumption it is very low.It is powered using dual power supply to RAM, Ke Yishi
Now extend the single use time of encryption apparatus, ensure the cruising ability of battery.
Wherein when power supply unit is dual power supply, specific circuit form does not limit, and can realize when encryption apparatus exists
Electric source is used in different situations incision instead, to increase the single cruising time of encryption apparatus as far as possible.Specifically, the circuit of power supply unit
Form can with as shown in figure 3, including 3.3V main power sources and 3V batteries V2 and two low pressure drop Schottky diode D13 and
D15.When 3.3V normal power supplies, D13 conductings, MUX_3V level is higher than 3V after conducting, i.e. MUX_3V is higher than V2, ends D15.
Theoretically, during 3.3V main power sources normal power supply, battery not power consumption.When 3.3V does not power, D15 conductings, D13 ends, and battery is born
It blames and powers to RAM.
By power supply unit for exemplified by dual power supply, the particular circuit configurations schematic diagram of power supply unit and zero setting component can be such as figure
Shown in 4, zero setting component controls the break-make of power supply unit by the voltage between monitoring metal shell body, to realize to storage part
The effect of part zero setting.
Based on above-mentioned technical proposal, the metal that is required in the encryption apparatus combination physical protection that the embodiment of the present invention is provided
Metal shell is designed to a part for nulling circuit by shell.Once appearance accesses not over specified user interface,
But the modes such as dismounting shell is taken to attempt to contact storage chip, and the behavior of storage chip content is obtained, zero setting can be passed through
Component monitors whether outer housing is disassembled in real time, when illegally dismounting metal shell, can trigger nulling circuit, control storage unit
Supply voltage disconnects, and removes the sensitive information in storage unit, you can realize when outer housing is illegally dismantled to sensitive information
Protection.In addition, storage unit, using that can realize the component stored for a long time, therefore, the present invention can ensure sensitive information
It is long-term while preserve, can realize the purpose of protection when outer housing is illegally dismantled to sensitive information conscientiously.
In the specific embodiment of the present invention, due to work as encryption apparatus not with other have stablize electricity consumption source
Device connection when be mainly powered by internal battery, since battery can be lower with the growth electricity of usage time,
And the sensitive data meeting that encryption apparatus provided by the invention is stored when power supply unit can not continue to provide power supply, in encryption apparatus
Zero setting to ensure the long-term storage of encryption apparatus, need to keep the long-term power supply of power supply unit, in time when battery capacity is too low more
It changes or charges, to carry out the prompting of low battery to user in time, replaced in time in order to user or battery is filled
Electricity, it is preferable that encryption apparatus provided by the invention can further include：Not enough power supply indicating member, not enough power supply indicating member with
The connection diagram of power supply unit, zero setting component and storage unit as shown in figure 5, zero setting component one end connects storage unit,
The other end connects power supply unit, and not enough power supply indicating member is connected with power supply unit, can send alarm signal.
Not enough power supply indicating member is connected with power supply unit, for detecting whether remaining capacity is less than power threshold, if
It is to send alarm signal.Due to more mature to the detection mode of electricity in the prior art, here, specific not enough power supply police
Show that component can refer to the prior art.The remaining capacity for checking battery at any time can be realized by not enough power supply indicating member, in time
Alarm is proposed, to replace battery in time.To realize the simplification of circuit structure, the cost of encryption apparatus is saved, for example, electricity
Insufficient indicating member is specifically as follows voltage comparator.Judge battery capacity whether less than electricity threshold by voltage comparator
Value, the concrete numerical value setting of power threshold do not limit herein, and selection as far as possible can make entire circuit work under normal circumstances
Small voltage, when less than the voltage, send alarm signal.When not enough power supply indicating member is specially voltage comparator,
Whether it can be with as shown in fig. 6, judges battery capacity less than reference with the particular circuit configurations of power supply unit and zero setting component
Voltage VREF_2_5 when less than the voltage, is lower to notify control terminal by WARNING signals.Control terminal further passes through
Hardware or software mode notifies user.
In addition, the receiving terminal of alarm signal does not limit herein, it is preferable that alarm can be directly connected to some hardware
Alarm, alarm receive the alarm signal that not enough power supply indicating member is sent, make alarm, wherein, the class of alarm
Type does not limit, can be the equipment such as indicator light, buzzer, in order to realize it is clear, easily user is reminded, for example,
Alarm can be：Indicator light and/or buzzer.
In addition, the receiving terminal or software control end of information warning.It can be realized by soft by software control end
The form of part is more suitable to control through which kind of mode to remind user.For example, not enough power supply indicating member and control
End processed connection, control terminal receives further notifies user after information warning by way of hardware or software, and hardware can be with
For alarm, software can be app in mobile terminal etc., can realize and user is carried when user is outside certain distance
It wakes up.For example, adding in return code in api interface, the software type of alarm of current battery charge situation is judged according to return code.
In the another embodiment of the present invention, in order to realize user to the clear of power supply unit remaining capacity situation
Chu understands in real time, it is preferable that encryption apparatus provided by the invention can further include：Electric power detection component.Electric power detection component
It is connected with power supply unit, detects the remaining capacity of power supply unit in real time.To the concrete methods of realizing of the electric power detection of power supply unit
The prior art is can refer to, details are not described herein.
Wherein, the message stream mode of electric power detection component is not limited in above-mentioned, can be exported by software, such as
By the mobile terminal for carrying electricity real-time Transmission to user, in order to which user whenever and wherever possible looks into remaining capacity
It sees, alternatively, it is also possible to integrate electricity display unit in encryption apparatus, electricity display unit is connected with electric power detection component, is used
In the remaining capacity of display power supply unit.Since encryption apparatus circuit structure provided by the present invention is simple, small volume can be with
Realization is carried, and can increase residue of the electricity display unit for real-time display encryption apparatus in the outer housing of encryption apparatus
Electricity, can realize without other devices can real time inspection encryption apparatus electricity purpose.The specific shape of electricity display unit
Formula can be configured according to user demand, such as can be by the form of LED light, for example, setting four LED light in shell
Body is powered by power supply unit for it.Represent that electricity is in 85% to 100% when four LED light all lights, when three LED light
It represents that remaining capacity is about 60% to 85% when bright, represents that remaining capacity is about 40% to 60% when two LED light are bright,
When only there are one LED light it is bright when represent remaining capacity be about 0 to 40%, electricity is in extremely low state, it is necessary to be replenished in time
Electricity.
In the another embodiment of the present invention, zero setting component, which can be also used for working as, detects metal shell body quilt
During dismounting, alarm signal is sent.It is similar with above-mentioned not enough power supply indicating member, the receiving terminal of alarm signal is not limited, it can
To be directly connected with hardware alarms device, such as warning lamp etc., can also be connected with control chip, by controlling chip to warning letter
Breath is handled, and control chip can be connected with user terminal, and user password device is prompted to be trespassed or connected with alarm
It connects, neighbouring user someone is reminded to carry out criminal manipulation by alarm, is please prevented in time.Physical circuit realization side
Formula does not limit herein, can refer to the prior art, and details are not described herein.
Encryption apparatus provided by the present invention is described in detail above.Specific case used herein is to this hair
Bright principle and embodiment is set forth, the explanation of above example is only intended to help understand the present invention method and its
Core concept.It should be pointed out that for those skilled in the art, the premise of the principle of the invention is not being departed from
Under, can also to the present invention some improvement and modification can also be carried out, these improvement and modification also fall into the protection of the claims in the present invention
In the range of.
Claims (8)
1. a kind of encryption apparatus, which is characterized in that including：
Storage unit, for storing sensitive information for a long time；
Zero setting component is connected with metal shell body, for detecting whether the metal shell body is disassembled, if so, by described in
The sensitive data zero setting of storage unit storage；
Power supply unit, for powering for consuming parts；Wherein, the consuming parts include：It the zero setting component and described deposits
Store up component.
2. encryption apparatus as described in claim 1, which is characterized in that the storage unit is specially：Low-power consumption arbitrary access
Memory.
3. encryption apparatus as described in claim 1, which is characterized in that further include：Not enough power supply indicating member, the electricity is not
Sufficient indicating member is connected with the power supply unit, for detecting whether remaining capacity is less than power threshold, if so, sending warning
Signal.
4. encryption apparatus as claimed in claim 3, which is characterized in that further include：Alarm, the alarm are used to receive institute
The alarm signal of not enough power supply indicating member is stated, makes alarm.
5. encryption apparatus as described in claim 1, which is characterized in that further include：Electric power detection component, with the power supply unit
Connection, for detecting the remaining capacity of the power supply unit in real time.
6. encryption apparatus as claimed in claim 5, which is characterized in that further include：Electricity display unit, the electricity display unit
Part is connected with the electric power detection component, for showing the remaining capacity of the power supply unit.
7. encryption apparatus as described in claim 1, which is characterized in that the zero setting component, which is additionally operable to work as, detects the metal
When outer housing is disassembled, alarm signal is sent.
8. encryption apparatus as described in any one of claim 1 to 7, which is characterized in that the power supply unit is specially：Dual power supply
Component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030039.6A CN108121919A (en) | 2018-01-12 | 2018-01-12 | A kind of encryption apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030039.6A CN108121919A (en) | 2018-01-12 | 2018-01-12 | A kind of encryption apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108121919A true CN108121919A (en) | 2018-06-05 |
Family
ID=62233966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810030039.6A Pending CN108121919A (en) | 2018-01-12 | 2018-01-12 | A kind of encryption apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108121919A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113496047A (en) * | 2021-07-29 | 2021-10-12 | 深圳市纽创信安科技开发有限公司 | Electronic password card with anti-disassembly protection |
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| CN203557858U (en) * | 2013-10-30 | 2014-04-23 | 罗瑾 | Financial management seal with anti-theft and self-destroying functions |
| CN105279461A (en) * | 2015-10-29 | 2016-01-27 | 江苏和乔科技股份有限公司 | Safety protection device capable of preventing information stealing through disassembling shell and LCD screen |
| CN205899543U (en) * | 2016-06-16 | 2017-01-18 | 深圳市捷翔电子有限公司 | Destructors uncaps |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2497919A (en) * | 2011-12-08 | 2013-07-03 | Pangaea Media Ltd | Electronic circuit apparatus performing a function in response to a trigger signal |
| CN102968854A (en) * | 2012-11-29 | 2013-03-13 | 长城信息产业股份有限公司 | Uncovered data self-destruction device for safety payment terminal and method |
| CN203557858U (en) * | 2013-10-30 | 2014-04-23 | 罗瑾 | Financial management seal with anti-theft and self-destroying functions |
| CN105279461A (en) * | 2015-10-29 | 2016-01-27 | 江苏和乔科技股份有限公司 | Safety protection device capable of preventing information stealing through disassembling shell and LCD screen |
| CN205899543U (en) * | 2016-06-16 | 2017-01-18 | 深圳市捷翔电子有限公司 | Destructors uncaps |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113496047A (en) * | 2021-07-29 | 2021-10-12 | 深圳市纽创信安科技开发有限公司 | Electronic password card with anti-disassembly protection |
| CN113496047B (en) * | 2021-07-29 | 2024-04-30 | 深圳市纽创信安科技开发有限公司 | Electronic cipher card with anti-disassembly protection |
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Application publication date: 20180605 |