CN105376047A - Safety module protecting method and safety module protecting device - Google Patents
Safety module protecting method and safety module protecting device Download PDFInfo
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- CN105376047A CN105376047A CN201410388868.3A CN201410388868A CN105376047A CN 105376047 A CN105376047 A CN 105376047A CN 201410388868 A CN201410388868 A CN 201410388868A CN 105376047 A CN105376047 A CN 105376047A
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Abstract
The invention provides a safety module protecting method and a safety module protecting device. The safety module protecting method comprises the steps of in the operation process of a safety module, determining working frequency changing time points of the safety module, and when each changing time point arrives, changing the working frequency which is transmitted from an oscillator to the safety module according to a preset role; and making the safety module operate in the working frequency which is transmitted from the oscillator. Therefore, power consumption scrambling on the safety module is realized through a relatively simple mode. The power consumption curve of the safety module is randomly changed. Furthermore power consumption analysis risk is reduced.
Description
Technical field
The present invention relates to information security field, particularly relate to a kind of security module guard method and device.
Background technology
Widely, as bank card, social security card etc., it is made up of security module and one or more integrated circuit or chip the application of current safety intelligent card, and is packaged into the card that facilitates user to carry or key etc.And be a kind of conventional means cracking secrete key of smart card for the power consumption analysis of security module in smart card.Power consumption analysis mainly can be divided into simple power consumption analysis (SimplePowerAnalysis according to attack means, and differential power consumption analysis (DifferentialPowerAnalysis SPA), DPA) two kinds, analyze for the weakness that circuit is different respectively.Power consumption features when simple power consumption analysis runs by observing algorithm circuit is attacked; Difference power consumption analysis carries out statistical analysis to a large amount of plaintexts (or ciphertext) and power consumption profile and obtains key information.One of key means of difference power consumption analysis is exactly need to find out a point of observation when algorithm runs, so that the value according to this point of observation carries out power consumption grouping, then, after the power consumption profile of each group must being alignd in time domain, statistical analysis could be carried out to power consumption profile.Due to the process of difference power consumption analysis is time-domain signal, and therefore in time domain, Accurate align power consumption profile is a very crucial step, if not alignment, the power consumption difference of different pieces of information just cannot be accumulated in great amount of samples.Therefore in order to protect security module, its basic way should be make its power consumption profile be difficult to Accurate align in time domain, thus the key of security module can not be analyzed, but in the prior art, conventional technical method is on security module normal power consumption waveform, the power consumption load of a superposition change at random, this not only needs to increase the power consumption of security module and the design difficulty of system, and does not fundamentally change the rule of power consumption profile; Also have a kind of way to be revise the key algorithm in security module in addition, improve algorithm and crack difficulty, but this method is difficult to realize.
Summary of the invention
The invention provides a kind of security module guard method and device, solve the key of security module in prior art and be easy to be cracked, the problem that fail safe is not high.
In order to solve the problem, the present invention by the following technical solutions:
A kind of security module guard method, comprising:
In the security module course of work, determine the transformation period point of its operating frequency, when each transformation period point arrives, change according to preset rules the operating frequency that oscillator is transferred to described security module;
Described security module carries out work under the operating frequency that oscillator transmission is next.
Further, described security module is carried out work and is specifically comprised under the operating frequency that oscillator transmission is next: described security module receives the random number that randomizer produces under the operating frequency that oscillator transmission is next, and utilizes described random number to carry out the operation of algorithm operation or other mode of operations.
Further, describedly change according to preset rules the operating frequency that oscillator is transferred to described security module and specifically comprise: change according to the random number that randomizer produces the operating frequency that oscillator is transferred to described security module.
Further, the random number produced according to described randomizer changes the operating frequency that oscillator is transferred to described security module and specifically comprises: judged that whether the random number that the random number of the current generation of randomizer and a upper moment produce was equal; If equal, then when transformation period point reaches, the operating frequency after change is that present operating frequency increases or reduces a preset value; If unequal, then when transformation period point reaches, the operating frequency after change is that present operating frequency increases or reduces a random value.
Further, describedly determine that the transformation period point of the operating frequency of security module specifically comprises: the random number produced according to described randomizer determines the frequency change time point of described operating frequency.
Further, the random number produced according to described randomizer determines that the frequency change time point of described operating frequency specifically comprises: judged that whether the random number that the random number of the current generation of randomizer and a upper moment produce was equal; If equal, then described transformation period point is that current transformation period point increases or reduces a preset time period; If unequal, then described transformation period point is that current transformation period point increases or reduces a random time section.
A kind of security module protective device, comprising:
Frequency control module, in the security module course of work, determines the transformation period point of its operating frequency, when each transformation period point arrives, changes according to preset rules the operating frequency that oscillator is transferred to described security module.
Further, described frequency control module changes specifically for the random number produced according to randomizer the operating frequency that oscillator is transferred to described security module, described operating frequency is used for the random number that security module receives randomizer generation under the operating frequency that oscillator transmission is next, and utilizes described random number to carry out algorithm operation or other mode of operations.
Whether further, described frequency control module specifically comprises: judge submodule, equal for judging the random number that the random number of the current generation of randomizer and a upper moment produce; Frequency size controls submodule, if be equal for the judged result of described judgement submodule, then when transformation period point reaches, the operating frequency after change is that present operating frequency increases or reduces a preset value; If the judged result of described judgement submodule is unequal, then when transformation period point reaches, the operating frequency after change is that present operating frequency increases or reduces a random value.
Further, described frequency control module also comprises: frequency error factor controls submodule, and the random number for producing according to described randomizer determines the transformation period point of described operating frequency.
Further, described frequency error factor controls submodule and specifically comprises: if be equal for the judged result of described judgement submodule, then described transformation period point is that current transformation period point increases or reduces a preset time period; If the judged result of described judgement submodule is unequal, then described transformation period point is that current transformation period point increases or reduces a random time section.
The invention provides a kind of security module guard method and device; in the security module course of work; determine the transformation period point of its operating frequency; when each transformation period point arrives; change according to preset rules the operating frequency that oscillator is transferred to described security module, security module carries out work under the operating frequency that oscillator transmission is next.By the change to its operating frequency; fundamentally change the time-domain signal of security module; make it when power consumption analysis, can not in time domain Accurate align power consumption profile, thus its key can not be analyzed; protect security module; and it realizes Method compare simply, does not also more consume, therefore to the power consumption of whole security module; not only make user to feel more relieved ground use safety smart card, decrease the cost of manufacturer simultaneously.
Further, the operating frequency that oscillator is transferred to security module can be changed by the random number produced according to randomizer, the operating frequency of such security module does not alternatively have rule more, makes its power consumption profile more complicated, more difficultly cracks it.Achieve and use better simply mode, realize power consumption scrambling, change power consumption profile at random, reduce the effect of the risk of power consumption analysis.
Accompanying drawing explanation
The flow chart of the security module guard method that Fig. 1 provides for one embodiment of the invention;
The structure chart of the security module protective device that Fig. 2 provides for one embodiment of the invention;
The structure chart of the frequency control module that Fig. 3 provides for one embodiment of the invention;
The structure chart of the frequency control module that Fig. 4 provides for another embodiment of the present invention;
Fig. 5 is the circuit diagram of safety intelligent card in one embodiment of the invention.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
As shown in Figure 1, be the flow chart of the security module guard method that one embodiment of the invention provides, refer to Fig. 1, described security module guard method specifically comprises:
S101: judge that whether security module is in running order, if so, then turn S102; If not, then S101 is turned.Described operating state comprises the operating state that described security module is in algorithm computing or other computings; Concrete judgment mode comprises: can by judging whether the smart card at this security module place is in using state, or pass through to judge whether described security module is in electriferous state etc., if so, then described security module is in running order.
S102: whether the transformation period point of operating frequency arrives, and if so, then turns S103, if not, then turns S102.Namely the transformation period point first determining the operating frequency of now described oscillator is how many, if the time of this time point arrives, then turns S103.
S103: change the operating frequency that oscillator is transferred to described security module according to preset rules.Oscillator set on smart cards generally comprises the ring oscillator of current mode, and it mainly controls the frequency change of oscillator by the reference current controlling oscillator; Also can comprise the another kind of resistance sizes by controlling to produce reference current, dynamic adjustments reference current, regulates the oscillator of its frequency further; The change preset rules of described oscillator frequency can be change regularly the operating frequency that oscillator is transferred to security module, also can be change randomly, its main object makes its operating frequency constantly to change exactly, thus is not easy the rule analyzing its time-domain signal.
S104: security module carries out work under the operating frequency that oscillator transmission is next.Specifically comprise: described security module receives the random number that randomizer produces under the operating frequency that oscillator transmission is next, and utilizes described random number to carry out the operation of algorithm operation or other mode of operations.Described algorithm runs the operation comprising key computing scheduling algorithm; The random number that described randomizer produces is set in order to coordinate security module to carry out when algorithm runs in smart card.
Preferably, the operating frequency being transferred to described security module in step S103 according to preset rules change oscillator specifically comprises: change according to the random number that randomizer produces the operating frequency that oscillator is transferred to described security module.Random number described here can be identical with the random number of carrying out algorithm operation in security module in above-mentioned steps S104, also can be the new random number that randomizer produces; Its concrete steps are: judged that whether the random number that the random number of the current generation of randomizer and a upper moment produce was equal; If equal, then when transformation period point reaches, the operating frequency after change is that present operating frequency increases or reduces a preset value; If unequal, then when transformation period point reaches, the operating frequency after change is that present operating frequency increases or reduces a random value.Represented by described current time and the upper moment was the current time of the clock signal sent in oscillator and a upper moment, and both differ a transformation period point; The described table of random numbers shows irregular numerical value within the specific limits; Such as, the present operating frequency of described security module is F, described preset value is f, the random number N 1 of the current generation of described randomizer, the random number that a upper moment produces is N0, if described N1 equals N0, then the operating frequency that oscillator transmits is adjusted to the frequency values obtained after F carries out adding or subtract the computing of f; If described N1 is not equal to N0, then the random value operating frequency that oscillator transmits being adjusted to F and current time carries out a frequency values after addition or subtraction.
Further, describedly determine that the transformation period point of the operating frequency of security module specifically comprises: the random number produced according to described randomizer determines the frequency change time point of described operating frequency.Namely the further restriction that speed oscillator being transferred to the operating frequency change of described security module carries out; The determined rule of described frequency change time point comprises and changes the frequency of oscillator according to the time period of regularity, can be same time section also can be increase progressively to certain time period the frequency that the time period after decrementing operations changes oscillator; Can also comprise and change the frequency of oscillator according to the random time period.Its concrete step comprises: judged that whether the random number that the random number of the current generation of randomizer and a upper moment produce was equal; If equal, then described transformation period point is that current transformation period point increases or reduces a preset time period; If unequal, then described transformation period point is that current transformation period point increases or reduces a random time section.Such as, the present operating frequency of described security module is F, the operating frequency that oscillator is transferred to described security module at subsequent time is F1, the random number N 1 of the current generation of described randomizer, the random number that a upper moment produces is N0, the frequency change time point that current oscillator is transferred to the operating frequency of security module is after T, described preset time period is T1, if described N1 equals N0, then carry out after the time period obtained after addition or subtraction through T and T1, control the operating frequency F that described oscillator is transferred to security module and change over F1; If described N1 is not equal to N0, then controls the operating frequency F that oscillator is transferred to security module after the time period obtained after a T and random number carries out addition or subtraction and change over F1.
Preferably, the control oscillator provided for another embodiment of the present invention is below transferred to the method for the operating frequency of security module, and it specifically comprises:
Receive the random number of the Nbit that randomizer produces;
Nbite random number is changed into A and B two parts, and its transform mode comprises random number is divided into two parts according to the number of figure place, is respectively A and B; Wherein part A controls the change of oscillator frequency; Part B is for controlling the speed of oscillator frequency change.
The concrete mode that part A controls the change of described operating frequency comprises: compared by the A of current time and the A in a upper moment, if not identical, then described operating frequency is a random frequency values; If identical, then described operating frequency is: ongoing frequency value carries out being added or obtaining frequency values after additive operation with a frequency parameter.
Part B controls the speed of described operating frequency change: compared by the B of current time and the B in a upper moment, if not identical, then control after random time section, described operating frequency changes; If identical, then controlling time period of current setting and time period pre-set carries out the operation time of addition the latter subtraction after section, changes the frequency that described oscillator is transferred to security module.
The security module guard method that the present embodiment provides; mainly by being transferred to the random change of the operating frequency of security module to oscillator; make that power consumption analysis is carried out to it and be difficult to find out the real time point that its algorithm runs; thus its key cannot be analyzed exactly, increase the security performance of described security module.
As shown in Figure 2; for the structure chart of the security module protective device that one embodiment of the invention provides; refer to Fig. 2; described security module protective device 200 comprises: frequency control module 201; for in the security module course of work; determine the transformation period point of its operating frequency, when each transformation period point arrives, change according to preset rules the operating frequency that oscillator is transferred to described security module.The described security module course of work specifically comprises the course of work that described security module is in key computing or other computings; Its concrete judgment mode comprises: can by judging whether the smart card at this security module place is in use procedure, or pass through to judge whether described security module is in electriferous state etc.
In certain embodiments, described frequency control module 201 changes specifically for the random number produced according to randomizer the operating frequency that oscillator is transferred to described security module, described operating frequency is used for the random number that security module receives randomizer generation under the operating frequency that oscillator transmission is next, and utilizes described random number to carry out the operation of algorithm operation or other mode of operations.Particularly, the random number that described randomizer produces be in smart card in order to coordinate security module to carry out key computing time set.
In further embodiments, as shown in Figure 3, for the structure chart of the frequency control module that one embodiment of the invention provides, refer to Fig. 3, whether described frequency control module 201 specifically comprises: judge submodule 2011, equal for judging the random number that the random number of the current generation of randomizer and a upper moment produce; Frequency size controls submodule 2012, if be equal for the judged result of described judgement submodule 2011, then when transformation period point reaches, the operating frequency after change is that present operating frequency increases or reduces a preset value; If the judged result of described judgement submodule 2011 is unequal, then when transformation period point reaches, the operating frequency after change is that present operating frequency increases or reduces a random value.Represented by described current time and the upper moment was the current time of the clock signal sent in oscillator and a upper moment, and both differ a transformation period point; Described random value represents irregular numerical value within the specific limits; Such as, such as, the present operating frequency of described security module is F, the operating frequency that oscillator is transferred to described security module at subsequent time is F1, the random number N 1 of the current generation of described randomizer, the random number that a upper moment produces is N0, the frequency change time point that current oscillator is transferred to the operating frequency of security module is after T, described preset time period is T1, if described N1 equals N0, then carry out after the time period obtained after addition or subtraction through T and T1, control the operating frequency F that described oscillator is transferred to security module and change over F1; If described N1 is not equal to N0, then controls the operating frequency F that oscillator is transferred to security module after the time period obtained after a T and random number carries out addition or subtraction and change over F1.
In further embodiments, as shown in Figure 4, for the structure chart of the frequency control module that another embodiment of the present invention provides, refer to Fig. 4, described frequency control module 201 also comprises: frequency error factor controls submodule 2013, random number for producing according to described randomizer determines the transformation period point of described operating frequency, and changes according to described transformation period point the operating frequency that described oscillator is transferred to security module.Namely the further restriction that speed oscillator being transferred to the operating frequency change of described security module carries out; Its concrete step comprises: if be equal for the judged result of described judgement submodule 2011, then described transformation period point is that current transformation period point increases or reduces a preset time period; If the judged result of described judgement submodule 2011 is unequal, then described transformation period point is that current transformation period point increases or reduces a random time section.Such as, the present operating frequency of described security module is F, the operating frequency that oscillator is transferred to described security module at subsequent time is F1, the random number N 1 of the current generation of described randomizer, the random number that a upper moment produces is N0, the frequency change time point that current oscillator is transferred to the operating frequency of security module is after T, described preset time period is T1, if described N1 equals N0, then carry out after the time period obtained after addition or subtraction through T and T1, control the operating frequency F that described oscillator is transferred to security module and change over F1; If described N1 is not equal to N0, then controls the operating frequency F that oscillator is transferred to security module after the time period obtained after a T and random number carries out addition or subtraction and change over F1.
As shown in Figure 5, be the circuit diagram of safety intelligent card in one embodiment of the invention, refer to Fig. 5, the process performed by modules comprises: the function of modules:
Randomizer 400 produces random number and is transferred to security module protective device 200, and the random number simultaneously also produced is transferred to security module 500;
Security module protective device 200, regulates the frequency values of oscillator 300 according to the random number configuration obtained, and the speed of frequency change.
The signal of its control frequency change given by oscillator 300 according to security module protective device 200 controls transfer, dynamically adjust the frequency of oscillator 300.
Security module and data processor 500, carry out the computing of algorithm computing and other mode of operations.
The security module protective device that the present embodiment provides is mainly by being transferred to the random change of the operating frequency of security module to oscillator; make to carry out to it real time point that power consumption analysis is difficult to find out its algorithm computing; thus its key cannot be analyzed exactly, increase the security performance of described security module.
The invention provides a kind of security module guard method and device, in the security module course of work, determine the transformation period point of its operating frequency, when each transformation period point arrives, change according to preset rules the operating frequency that oscillator is transferred to described security module; Described security module carries out work under the operating frequency that oscillator transmission is next.By the change to its operating frequency; fundamentally change the time-domain signal of security module; make it when power consumption analysis, can not in time domain Accurate align power consumption profile, thus its key can not be analyzed; protect security module; and it realizes Method compare simply, does not also more consume, therefore to the power consumption of whole security module; not only make user to feel more relieved ground use safety smart card, decrease the cost of manufacturer simultaneously.
Above content is in conjunction with concrete execution mode further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (11)
1. a security module guard method, is characterized in that, comprising:
In the security module course of work, determine the transformation period point of its operating frequency, when each transformation period point arrives, change according to preset rules the operating frequency that oscillator is transferred to described security module;
Described security module carries out work under the operating frequency that oscillator transmission is next.
2. security module guard method according to claim 1; it is characterized in that; described security module is carried out work and is specifically comprised under the operating frequency that oscillator transmission is next: described security module receives the random number that randomizer produces under the operating frequency that oscillator transmission is next, and utilizes described random number to carry out the operation of algorithm operation or other mode of operations.
3. security module guard method according to claim 1; it is characterized in that, describedly change according to preset rules the operating frequency that oscillator is transferred to described security module and specifically comprise: change according to the random number that randomizer produces the operating frequency that oscillator is transferred to described security module.
4. security module guard method according to claim 3, it is characterized in that, the random number produced according to described randomizer changes the operating frequency that oscillator is transferred to described security module and specifically comprises: judged that whether the random number that the random number of the current generation of randomizer and a upper moment produce was equal; If equal, then when transformation period point reaches, the operating frequency after change is that present operating frequency increases or reduces a preset value; If unequal, then when transformation period point reaches, the operating frequency after change is that present operating frequency increases or reduces a random value.
5. the security module guard method according to any one of claim 2-4; it is characterized in that, describedly determine that the transformation period point of the operating frequency of security module specifically comprises: the random number produced according to described randomizer determines the frequency change time point of described operating frequency.
6. security module guard method according to claim 5, it is characterized in that, determine that the frequency change time point of described operating frequency specifically comprises according to the random number that described randomizer produces: judged that whether the random number that the random number of the current generation of randomizer and a upper moment produce was equal; If equal, then described transformation period point is that current transformation period point increases or reduces a preset time period; If unequal, then described transformation period point is that current transformation period point increases or reduces a random time section.
7. a security module protective device, is characterized in that, comprising:
Frequency control module, in the security module course of work, determines the transformation period point of its operating frequency, when each transformation period point arrives, changes according to preset rules the operating frequency that oscillator is transferred to described security module.
8. security module protective device according to claim 7, is characterized in that,
Described frequency control module changes specifically for the random number produced according to randomizer the operating frequency that oscillator is transferred to described security module, described operating frequency is used for the random number that security module receives randomizer generation under the operating frequency that oscillator transmission is next, and utilizes described random number to carry out the operation of algorithm operation or other mode of operations.
9. whether security module protective device according to claim 8, is characterized in that, described frequency control module specifically comprises: judge submodule, equal for judging the random number that the random number of the current generation of randomizer and a upper moment produce; Frequency size controls submodule, if be equal for the judged result of described judgement submodule, then when transformation period point reaches, the operating frequency after change is that present operating frequency increases or reduces a preset value; If the judged result of described judgement submodule is unequal, then when transformation period point reaches, the operating frequency after change is that present operating frequency increases or reduces a random value.
10. security module protective device according to claim 8 or claim 9; it is characterized in that; described frequency control module also comprises: frequency error factor controls submodule, and the random number for producing according to described randomizer determines the transformation period point of described operating frequency.
11. security module protective devices according to claim 10, it is characterized in that, described frequency error factor controls submodule and specifically comprises: if be equal for the judged result of described judgement submodule, then described transformation period point is that current transformation period point increases or reduces a preset time period; If the judged result of described judgement submodule is unequal, then described transformation period point is that current transformation period point increases or reduces a random time section.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979457A (en) * | 2016-10-25 | 2018-05-01 | 航天信息股份有限公司 | A kind of processing system, the method and device of side channel signal |
| CN108492070A (en) * | 2018-03-23 | 2018-09-04 | 长汀县安邸家具有限公司 | A kind of electric business shipment system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1387713A (en) * | 1999-11-03 | 2002-12-25 | 因芬尼昂技术股份公司 | Encoding device |
| US20110123022A1 (en) * | 2009-11-24 | 2011-05-26 | Sony Corporation | Random number generating device, random number generating method, and security chip |
| US20110159816A1 (en) * | 2005-08-01 | 2011-06-30 | Sony Corporation | Communication system, communication apparatus, communication method, and program |
| CN102238006A (en) * | 2010-04-29 | 2011-11-09 | 罗伯特·博世有限公司 | Protection on side channel attack of cryptanalysis |
| CN102882683A (en) * | 2012-09-26 | 2013-01-16 | 南京三宝科技股份有限公司 | Synchronizable RFID (radio-frequency identification) security authentication method |
| CN103384197A (en) * | 2012-05-03 | 2013-11-06 | 国家电网公司 | Circuit, chip and method for defending against energy attack on grouping algorithm |
| CN103825608A (en) * | 2012-03-16 | 2014-05-28 | 英飞凌科技股份有限公司 | Random spread spectrum modulation |
-
2014
- 2014-08-08 CN CN201410388868.3A patent/CN105376047B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1387713A (en) * | 1999-11-03 | 2002-12-25 | 因芬尼昂技术股份公司 | Encoding device |
| US20110159816A1 (en) * | 2005-08-01 | 2011-06-30 | Sony Corporation | Communication system, communication apparatus, communication method, and program |
| US20110123022A1 (en) * | 2009-11-24 | 2011-05-26 | Sony Corporation | Random number generating device, random number generating method, and security chip |
| CN102238006A (en) * | 2010-04-29 | 2011-11-09 | 罗伯特·博世有限公司 | Protection on side channel attack of cryptanalysis |
| CN103825608A (en) * | 2012-03-16 | 2014-05-28 | 英飞凌科技股份有限公司 | Random spread spectrum modulation |
| CN103384197A (en) * | 2012-05-03 | 2013-11-06 | 国家电网公司 | Circuit, chip and method for defending against energy attack on grouping algorithm |
| CN102882683A (en) * | 2012-09-26 | 2013-01-16 | 南京三宝科技股份有限公司 | Synchronizable RFID (radio-frequency identification) security authentication method |
Non-Patent Citations (1)
| Title |
|---|
| SHENGQI YANG等: "Power Analysis Attack Resistance Engineering by Dynamic Voltage and Frequency Scaling", 《ACM TRANSACTIONS ON EMBEDDED COMPUTING SYSTEMS》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979457A (en) * | 2016-10-25 | 2018-05-01 | 航天信息股份有限公司 | A kind of processing system, the method and device of side channel signal |
| CN107979457B (en) * | 2016-10-25 | 2020-11-17 | 航天信息股份有限公司 | System, method and device for processing side channel signal |
| CN108492070A (en) * | 2018-03-23 | 2018-09-04 | 长汀县安邸家具有限公司 | A kind of electric business shipment system |
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| Publication number | Publication date |
|---|---|
| CN105376047B (en) | 2020-03-17 |
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