CN109391462A - The signal alignment method and device of side channel signal - Google Patents
The signal alignment method and device of side channel signal Download PDFInfo
- Publication number
- CN109391462A CN109391462A CN201710667759.9A CN201710667759A CN109391462A CN 109391462 A CN109391462 A CN 109391462A CN 201710667759 A CN201710667759 A CN 201710667759A CN 109391462 A CN109391462 A CN 109391462A
- Authority
- CN
- China
- Prior art keywords
- side channel
- signal
- channel signal
- valid data
- data section
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/002—Countermeasures against attacks on cryptographic mechanisms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/002—Countermeasures against attacks on cryptographic mechanisms
- H04L9/003—Countermeasures against attacks on cryptographic mechanisms for power analysis, e.g. differential power analysis [DPA] or simple power analysis [SPA]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The signal alignment method and device of side channel signal provided in an embodiment of the present invention, it chooses with reference to the corresponding signal of valid data section from the first side channel signal or second side channel signal to signal alignment of acquisition as third side channel signal, then by determining the first valid data section of adaptation third side channel signal and determining the second valid data section for being adapted to third side channel signal in the second signal initiation region of second side channel signal in the first signal initiation region of the first side channel signal, signal alignment is finally carried out to the first side channel signal and second side channel signal according to the first valid data section and the second valid data section.The signal alignment method and device of side channel signal provided in an embodiment of the present invention, it can be realized the accurately signal alignment of side channel signal, furthermore, a possibility that can also guaranteeing the integrality of the data of side channel signal as much as possible, and then improving the key or associated secret information that obtain encrypted electronic equipment.
Description
Technical field
The present embodiments relate to signal analysis technology field more particularly to a kind of signal alignment methods of side channel signal
And device.
Background technique
Side channel signal refers to time loss, power consumption or the electromagnetism spoke that encrypted electronic equipment is revealed in the process of running
The signal penetrated etc, by the analysis of opposite side channel signal, the key or associated secret information of available encrypted electronic equipment.
The analysis of opposite side channel signal is most important, for example, the manufacturer of encrypted electronic equipment can pass through opposite side
The analysis of channel signal determines the safety of encrypted electronic equipment.In order to guarantee side channel signal data integrality, it is necessary to
Opposite side channel signal is sampled in advance, and some invalid noise letters can be thus sampled before effective side channel signal
Number.Therefore, a kind of signal alignment method of side channel signal becomes technical problem urgently to be resolved.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of signal alignment method and device of side channel signal, to solve
Side channel signal in the prior art needs the technical issues of being aligned.
First aspect of the embodiment of the present invention provides a kind of signal alignment method of side channel signal, includes:
Obtain the first side channel signal and second side channel signal to signal alignment；
Determine the reference valid data section corresponding in first side channel signal or second side channel signal
Three side channel signals；
It determines the first valid data section in the first signal initiation region of first side channel signal, and determines institute
State the second valid data section in the second signal initiation region of second side channel signal, the first valid data section and described
Second valid data section is adapted to third side channel signal respectively；
According to the first valid data section and the second valid data section to first side channel signal and described
Second side channel signal carries out signal alignment.
Optionally, it is described according to the first valid data section and the second valid data section to first side channel
Signal and second side channel signal carry out signal alignment, comprising:
It determines the first aligned position of the first valid data section and determines the second of the second valid data section
Aligned position；Wherein, relative position and second alignment bit of first aligned position in the first valid data section
It sets identical in the relative position of the second valid data section；
First aligned position and second aligned position are aligned to first side channel signal and described
Two side channel signals carry out signal alignment.
Optionally, first aligned position is the first end position of the first valid data section, accordingly, described
Second aligned position is the second end position of the second valid data section；
Alternatively, first aligned position is the First end position of the first valid data section, and accordingly, described the
Two aligned positions are the second head end position of the second valid data section.
Optionally, the first valid data in the first signal initiation region of the determination the first side channel signal
The second valid data section in section, and the second signal initiation region of determining second side channel signal, described first has
Effect data segment and the second valid data section are adapted to third side channel signal respectively, comprising:
Be aligned first signal initiation region the first signal starting point and the second signal initiation region second
Signal starting point is to be aligned first side channel signal and second side channel signal；
If the first signal starting point of first signal initiation region and the second letter of the second signal initiation region
Number starting point alignment, it is determined that the first valid data section in the first signal initiation region of first side channel signal, with
And the second valid data section in the second signal initiation region of determining second side channel signal, first valid data
Section and the second valid data section are adapted to third side channel signal respectively.
Optionally, the reference valid data section in the channel signal of first side of determination or the ginseng in second side channel signal
Examine the corresponding third side channel signal of valid data section, comprising:
The reference valid data section or second side channel letter of first side channel signal are determined by pattern-recognition
Reference valid data section in number；
It is determined as third side channel signal with reference to the corresponding side channel signal of valid data section for described.
Second aspect of the embodiment of the present invention provides a kind of signal alignment method of side channel signal, includes:
Module is obtained, for obtaining the first side channel signal and second side channel signal to signal alignment；
First determining module, for determining that the reference in first side channel signal or second side channel signal has
Imitate the corresponding third side channel signal of data segment；
Second determining module, first in the first signal initiation region for determining first side channel signal are effective
Data segment, and determine the second valid data section in the second signal initiation region of second side channel signal, described the
One valid data section and the second valid data section are adapted to third side channel signal respectively；
Execution module, for being believed according to the first valid data section and the second valid data section first side
Road signal and second side channel signal carry out signal alignment.
Optionally, the execution module, is specifically used for:
It determines the first aligned position of the first valid data section and determines the second of the second valid data section
Aligned position；Wherein, relative position and second alignment bit of first aligned position in the first valid data section
It sets identical in the relative position of the second valid data section；
First aligned position and second aligned position are aligned to first side channel signal and described
Two side channel signals carry out signal alignment.
Optionally,
First aligned position is the first end position of the first valid data section, accordingly, described second pair
Neat position is the second end position of the second valid data section；
Alternatively, first aligned position is the First end position of the first valid data section, and accordingly, described the
Two aligned positions are the second head end position of the second valid data section.
Optionally, second determining module, is specifically used for:
Be aligned first signal initiation region the first signal starting point and the second signal initiation region second
Signal starting point is to be aligned first side channel signal and second side channel signal；
If the first signal starting point of first signal initiation region and the second letter of the second signal initiation region
Number starting point alignment, it is determined that the first valid data section in the first signal initiation region of first side channel signal, with
And the second valid data section in the second signal initiation region of determining second side channel signal, first valid data
Section and the second valid data section are adapted to third side channel signal respectively.
Optionally, first determining module, is specifically used for:
The reference valid data section or second side channel letter of first side channel signal are determined by pattern-recognition
Reference valid data section in number；
It is determined as third side channel signal with reference to the corresponding side channel signal of valid data section for described.
The signal alignment method and device of side channel signal provided in an embodiment of the present invention, from acquisition to signal alignment
It is chosen in first side channel signal or second side channel signal with reference to the corresponding signal of valid data section as third side channel letter
Number, then have by determining the first of adaptation third side channel signal in the first signal initiation region of the first side channel signal
It imitates data segment and determines that the second of adaptation third side channel signal has in the second signal initiation region of second side channel signal
Data segment is imitated, finally the first side channel signal and described second side are believed according to the first valid data section and the second valid data section
Road signal carries out signal alignment.The signal alignment method and device of side channel signal provided in an embodiment of the present invention, can be realized
The accurately signal alignment of side channel signal, moreover it is possible to guarantee the integrality of the data of side channel signal as much as possible, in turn
A possibility that improving the key or associated secret information that obtain encrypted electronic equipment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in inventive embodiments can also obtain according to these attached drawings for those of ordinary skill in the art
Obtain other attached drawings.
Fig. 1 is the flow chart of the alignment schemes of the side channel signal of one embodiment of the invention.
Fig. 2 is the flow chart of the alignment schemes of the side channel signal of further embodiment of this invention.
Fig. 3 is the structural schematic diagram of the alignment means of the side channel signal of one embodiment of the invention.
Fig. 4 is the original state figure of the first side channel signal and second side channel signal of one embodiment of the invention.
Fig. 5 is the first side channel signal of one embodiment of the invention and the variable condition figure of second side channel signal.
Fig. 6 is the first side channel signal of one embodiment of the invention and the aligned condition figure of second side channel signal.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution in the embodiment of the present invention, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described reality
Applying example only is a part of the embodiment of the embodiment of the present invention, instead of all the embodiments.Based on the implementation in the embodiment of the present invention
The range of protection of the embodiment of the present invention all should belong in example, those of ordinary skill in the art's every other embodiment obtained.
Below with reference to attached drawing of the embodiment of the present invention the embodiment of the present invention will be further explained specific implementation.
Fig. 1 is the flow chart of the signal alignment method of the side channel signal of one embodiment of the invention.Referring to Fig. 1, the present invention
Embodiment provide side channel signal signal alignment method, include:
Step S101, the first side channel signal 1 and second side channel signal 2 to signal alignment are obtained.
Specifically, the final purpose for obtaining side channel signal is to obtain encryption by the signal analysis of opposite side channel signal
The key or associated secret information of electronic equipment.For this purpose, the data of the side channel signal obtained are more complete, obtain encrypted electronic and set
A possibility that standby key or associated secret information, is bigger.In actual operation, it when encrypted electronic equipment one is run, begins to
Side channel signal is obtained, even, obtains the time of running of the detection work earlier than encrypted electronic equipment of side channel signal.In this way,
Cause in the signal initiation region of side channel signal that there is invalid noise signals.Referring to fig. 4, the of the first side channel signal 1
There is a large amount of invalid noise signals for one signal initiation region 4, and similarly, the second signal of second side channel signal 2 originates
There is a large amount of invalid noise signals in region 5.
Step S102, it determines in valid data section or second side channel signal 2 in first side channel signal 1
The corresponding third side channel signal 3 of reference valid data section.
Specifically, when carrying out signal alignment to the first side channel signal 1 and second side channel signal 2, it is invalid first to determine
Specific location of the noise signal in entire side channel signal.Since the origin cause of formation of invalid noise signal has diversity, such as signal
The many factors such as the bad accurate positionin of sampling start time, internal clocking drift, the invalid noise signal of signal initiation region
Specific location is difficult to determine.And when encrypted electronic equipment operates normally, the corresponding signal of valid data section of side channel signal
Very regular normal cyclical signal is shown as, and is showed different from invalid noise signal disorderly and unsystematic.Referring to figure
4, the invalid noise signal 41 in the first signal initiation region 4 of the first side channel signal 1 shows as disorderly and unsystematic；Second side letter
Invalid noise signal 51 in the second signal initiation region 5 of road signal 2 shows as disorderly and unsystematic；First side channel signal 1
The corresponding signal of valid data section is rendered as cyclical signal, and the corresponding signal of valid data section of second side channel signal 2 is in
It is now cyclical signal.Therefore the present embodiment is rendered as periodical letter from the first side channel signal 1 or second side channel signal 2
Number finite data section in choose wherein one section of valid data section and be used as with reference to valid data section, it is corresponding with reference to valid data section
Signal is as third side channel signal 3, subsequently through in the first signal initiation region 4 of the first side channel signal 1 and second side
The valid data section of adaptation third side channel signal 3 is determined in the second signal initiation region 5 of channel signal 2, and then is realized
Determine the specific location of the invalid noise signal of side channel signal.
Step S103, the first valid data in the first signal initiation region 4 of first side channel signal 1 are determined
The second valid data section in section, and the second signal initiation region 5 of determining second side channel signal 2, described first
Valid data section and the second valid data section are adapted to third side channel signal 3 respectively.
Specifically, third side channel signal 3 is reference template, in the first side channel signal 1 and second side channel signal 2
The valid data section that adaptation third side channel signal 3 is determined in signal initiation region, determines the signal sintering of side channel signal
Invalid noise letter after valid data section in domain, in the signal initiation region of determination side channel signal that can be simple and quick
Number.Referring to Fig. 5, being adapted to the first of third side channel signal 3 in the first signal initiation region 4 of the first side channel signal 1 has
Data segment 42 is imitated, the corresponding signal of data segment in 42 front of the first valid data section is all determined as in the first side channel signal
Invalid noise signal in 1 the first signal initiation region 4 is fitted in the second signal initiation region 5 of second side channel signal 2
The second valid data section 52 with third side channel signal 3, the corresponding letter of data segment in 52 front of the second valid data section
Number all it is determined as the invalid noise signal in the second signal initiation region 5 of second side channel signal 2.
Step S104, first side channel is believed according to the first valid data section and the second valid data section
Number 1 and second side channel signal 2 carry out signal alignment.
Specifically, according to above statement it is found that when the valid data section in the signal initiation region for determining side channel signal
Later, the invalid noise signal in the signal initiation region of determination side channel signal that can be simple and quick has determined that side is believed
The specific location of the invalid noise signal of road signal.Signal pair is being carried out to the first side channel signal 1 and second side channel signal 2
Qi Shi avoids the locating data segment of invalid noise signal, real by the first valid data section of alignment and the second valid data section
Now it is aligned entire first side channel signal 1 and second side channel signal 2.In addition, 42 He of the first valid data section of the present embodiment
Second valid data section 52 is determined in the signal initiation region of corresponding side channel signal, i.e., identified first has
Effect data segment 42 and the second valid data section 52 are all the valid data sections of corresponding side channel signal first appeared.Exist in this way
Under the premise of meeting accurate signal alignment, moreover it is possible to the integrality of the data of guarantee side channel signal as much as possible, and then improve
A possibility that obtaining the key or associated secret information of encrypted electronic equipment.
The signal alignment method of side channel provided in an embodiment of the present invention, from the first side channel to signal alignment of acquisition
It is chosen with reference to the corresponding signal of valid data section as third side channel signal 3, then in signal 1 or second side channel signal 2
By the first significant figure for determining adaptation third side channel signal 3 in the first signal initiation region 4 of the first side channel signal 1
The second of adaptation third side channel signal 3 is determined according to section 42 and in the second signal initiation region 5 of second side channel signal 2 has
Data segment 52 is imitated, finally according to 52 pair of first side channel signal 1 of the first valid data section 42 and the second valid data section and second
Side channel signal 2 carries out signal alignment.The signal alignment method of side channel signal provided in an embodiment of the present invention, can be realized side
The accurately signal alignment of channel signal, moreover it is possible to guarantee the integrality of the data of side channel signal, Jin Erti as much as possible
High a possibility that obtaining the key or associated secret information of encrypted electronic equipment.
Fig. 2 is the flow chart of the signal alignment method of the side channel of further embodiment of this invention.Referring to fig. 2, the present invention is real
Apply example offer side channel signal alignment method, include:
Step S201, the first side channel signal 1 and second side channel signal 2 to signal alignment are obtained.
It should be noted that the step S201 in the present embodiment is with the step S101 in above-described embodiment, it is no longer superfluous herein
It states.
Step S202, reference valid data section in first side channel signal 1 or described is determined by pattern-recognition
Reference valid data section in second side channel signal 2；It is determined as described with reference to the corresponding side channel signal of valid data section
Third side channel signal 3.
For example, it by the method for pattern-recognition, is presented in the first side channel signal 1 or second side channel signal 2
To identify in the finite data section of cyclical signal, wherein one section of valid data section is used as with reference to valid data section, with reference to significant figure
According to the corresponding signal of section as third side channel signal 3, the present embodiment can be realized accurately really by the method for pattern-recognition
Determine third side channel signal 3.
Step S203, the first starting point of alignment first signal initiation region 4 and the second signal initiation region 5
The second starting point to be aligned first side channel signal 1 and second side channel signal 2, execute step S204.
Specifically, referring to fig. 4, due to the difference of sampling start time or other factors, the first side channel signal 1 and second
The starting point of side channel signal 2 is not overlapped, therefore, valid data section in the signal initiation region for determining side channel signal it
Before, first it is aligned the first side channel signal 1 and second side channel signal 2.Especially by the of the first side channel signal 1 of alignment
Second starting point of the second signal initiation region 5 of the first starting point 43 and second side channel signal 2 of one signal initiation region 4
53 realize the first side channel signal 1 of alignment and second side channel signal 2.
If step S204, being aligned the first signal starting point 43 and the second signal of first signal initiation region 4
The second signal starting point 53 of initiation region 5, it is determined that in the first signal initiation region 4 of first side channel signal 1
The second significant figure in first valid data section, and the second signal initiation region 5 of determining second side channel signal 2
According to section, the first valid data section and the second valid data section are adapted to third side channel signal 3 respectively, are executed
Step S205.
Referring to Fig. 5, the first starting point 43 and second side channel of the first signal initiation region 4 of the first side channel signal 1
Second starting point 53 of the second signal initiation region 5 of signal 2 is aligned, at this moment the first of the first side channel signal 1
The first valid data section 42 that adaptation third side channel signal 3 is determined in signal initiation region 44, in second side channel signal 2
Second signal initiation region 55 in determine adaptation third side channel signal 3 the second valid data section 52.For example, with
Three side channel signals 3 are reference template, by the method for pattern-recognition, in the first signal sintering of the first side channel signal 1
The first valid data section 42 that adaptation third side channel signal 3 is determined in domain 44 rises in the second signal of second side channel signal 2
The second valid data section 52 of adaptation third side channel signal 3 is determined in beginning region 55.
Step S205, it determines the first aligned position of the first valid data section 42 and determines second significant figure
According to the second aligned position of section 52, step S206 is executed.
Specifically, it is determined that the principle of the first aligned position and the second aligned position is the first aligned position in the first significant figure
It is identical in the relative position of the second valid data section as the second aligned position according to the relative position of section.For example, one
In the possible implementation of kind, first aligned position is the first end position 44 of the first valid data section 42, right
Ying Di, second aligned position 52 are the second end position 54 of the second valid data section.In another possible reality
In existing mode, first aligned position is the First end position 45 of the first valid data section 44, accordingly, described the
Two aligned positions are the second head end position 55 of the second valid data section 53.Referring to Fig. 6, the first aligned position of selection is
Second aligned position of first end position 44, selection is second end position 54, and but it is not limited to this.The present embodiment passes through true
The first aligned position is protected in the relative position of the first valid data section 42 and the second aligned position in the second valid data section
52 relative position is identical, and then guarantees more accurately to carry out signal to the first side channel signal 1 and second side channel signal 2
Alignment.
Step S206, first aligned position and second aligned position are aligned to first side channel signal
1 and second side channel signal 2 carry out signal alignment.
Specifically, referring to Fig. 6, when being aligned the first aligned position and the second aligned position, the first side channel letter is realized
Number 1 and second side channel signal 2 carry out signal alignment.
The signal alignment method of side channel signal provided in an embodiment of the present invention, can be realized by the method for pattern-recognition
Accurately determine the first valid data section 42 and second side channel in the first signal initiation region 4 of the first side channel signal 1
The second valid data section 52 in the second signal initiation region 5 of signal 2；According to the first aligned position in the first valid data
Relative position and the second aligned position of section 42 determine the in the identical principle in the relative position of the second valid data section 52
One aligned position and the second aligned position, and then guarantee more accurately to the first side channel signal 1 and second side channel signal 2
Carry out signal alignment.
Fig. 3 is the structural schematic diagram of the alignment means of the side channel signal of one embodiment of the invention.As shown in Fig. 3, this hair
The signal alignment device for the side channel signal that bright embodiment provides includes:
Module 01 is obtained, for obtaining the first side channel signal 1 and second side channel signal 2 to signal alignment；
First determining module 02, for determining the reference valid data section or described in first side channel signal 1
The corresponding third side channel signal 3 of reference valid data section in two side channel signals 2；
Second determining module 03, in the first signal initiation region 4 for determining first side channel signal 1
The second valid data in the second signal initiation region 5 of one valid data section 42 and determining second side channel signal 2
Section 52, the first valid data section 42 and the second valid data section 52 are adapted to third side channel signal 3 respectively；
Execution module 04, for according to the first valid data section 42 and it is 52 pairs of second valid data section described described in
First side channel signal 1 and second side channel signal 2 carry out signal alignment.
Further, the execution module, is specifically used for:
It determines the first aligned position of the first valid data section 42 and determines the second valid data section 52
Second aligned position；Wherein, first aligned position is in the relative position and described second of the first valid data section 42
Aligned position is identical in the relative position of the second valid data section 52；
First aligned position and second aligned position are aligned to first side channel signal 1 and described
Second side channel signal 2 carries out signal alignment.
Further, first aligned position is the first end position 44 of the first valid data section 42, corresponding
Ground, second aligned position are the second end position 54 of the second valid data section 52；
Alternatively, first aligned position is the First end position 45 of the first valid data section 42, accordingly, institute
State the second head end position 55 that the second aligned position is the second valid data section 52.
Further, second determining module, is specifically used for:
Be aligned first signal initiation region 4 the first signal starting point and the second signal initiation region 5
Binary signal starting point is to be aligned first side channel signal and second side channel signal；
If be aligned first signal initiation region 4 the first signal starting point and the second signal initiation region 5
Second signal starting point, it is determined that the first valid data section in the first signal initiation region 4 of first side channel signal 1
42, and determine the second valid data section 52 in the second signal initiation region 5 of second side channel signal 2, described the
One valid data section 42 and the second valid data section 52 are adapted to third side channel signal 3 respectively.
Further, first determining module, is specifically used for: determining first side channel signal by pattern-recognition
1 or second side channel signal 2 in reference valid data section；
It is determined as third side channel signal 3 with reference to the corresponding side channel signal of valid data section for described.
It should be noted that closing device in this present embodiment, wherein modules have executed the concrete mode of operation
It is described in detail in the embodiment of the method, no detailed explanation will be given here.
The signal alignment device of side channel provided in an embodiment of the present invention, from the first side channel to signal alignment of acquisition
It is chosen with reference to the corresponding signal of valid data section as third side channel signal 3, then in signal 1 or second side channel signal 2
By the first significant figure for determining adaptation third side channel signal 3 in the first signal initiation region 4 of the first side channel signal 1
Determine that be adapted to third side channel signal 3 second is effective according to section and in the second signal initiation region 5 of second side channel signal 2
Data segment finally believes the first side channel signal 1 and described second side according to the first valid data section and the second valid data section
Road signal 2 carries out signal alignment.The signal alignment device of side channel provided in an embodiment of the present invention, can be realized side channel signal
Accurately signal alignment and then improve acquisition moreover it is possible to guarantee the integrality of the data of side channel signal as much as possible
A possibility that key or associated secret information of encrypted electronic equipment.
Certainly, any technical solution for implementing the embodiment of the present invention must be not necessarily required to reach simultaneously above all excellent
Point.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications may be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.Obviously, those skilled in the art
Various modification and variations can be carried out to the embodiment of the present invention without departing from the spirit and scope of the embodiment of the present invention.If in this way,
If these modifications and variations of the embodiment of the present invention belong within the scope of claim of the embodiment of the present invention and its equivalent technologies,
Then the embodiment of the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of signal alignment method of side channel signal, it is characterised in that, include:
Obtain the first side channel signal and second side channel signal to signal alignment；
Determine first side channel signal with reference to the reference valid data in valid data section or second side channel signal
Section corresponding third side channel signal；
It determines the first valid data section in the first signal initiation region of first side channel signal, and determines described the
The second valid data section in the second signal initiation region of two side channel signals, the first valid data section and described second
Valid data section is adapted to third side channel signal respectively；
According to the first valid data section and the second valid data section to first side channel signal and described second
Side channel signal carries out signal alignment.
2. the method according to claim 1, wherein described according to the first valid data section and described second
Valid data section carries out signal alignment to first side channel signal and second side channel signal, comprising:
It determines the first aligned position of the first valid data section and determines the second alignment of the second valid data section
Position；Wherein, first aligned position exists in the relative position of the first valid data section and second aligned position
The relative position of the second valid data section is identical；
First aligned position and second aligned position are aligned to first side channel signal and described second side
Channel signal carries out signal alignment.
3. according to the method described in claim 2, it is characterized in that,
First aligned position is the first end position of the first valid data section, accordingly, second alignment bit
It is set to the second end position of the second valid data section；
Alternatively, first aligned position is the First end position of the first valid data section, accordingly, described second pair
Neat position is the second head end position of the second valid data section.
4. the method according to claim 1, wherein the first signal of the determination the first side channel signal
The first valid data section in initiation region, and determine in the second signal initiation region of second side channel signal the
Two valid data sections, the first valid data section and the second valid data section are suitable with third side channel signal respectively
Match, comprising:
It is aligned the first signal starting point of first signal initiation region and the second signal of the second signal initiation region
Starting point is to be aligned first side channel signal and second side channel signal；
If the first signal starting point of first signal initiation region and the second signal of the second signal initiation region rise
Initial point alignment, it is determined that the first valid data section in the first signal initiation region of first side channel signal, and really
The second valid data section in the second signal initiation region of fixed second side channel signal, the first valid data section and
The second valid data section is adapted to third side channel signal respectively.
5. the method according to claim 1, wherein the reference significant figure in the channel signal of the first side of the determination
According to the corresponding third side channel signal of reference valid data section in section or second side channel signal, comprising:
It is determined in the reference valid data section or second side channel signal of first side channel signal by pattern-recognition
Reference valid data section；
It is determined as third side channel signal with reference to the corresponding side channel signal of valid data section for described.
6. a kind of signal alignment device of side channel signal, it is characterised in that, include:
Module is obtained, for obtaining the first side channel signal and second side channel signal to signal alignment；
First determining module, for determining the reference significant figure in first side channel signal or second side channel signal
According to the corresponding third side channel signal of section；
Second determining module, the first valid data in the first signal initiation region for determining first side channel signal
The second valid data section in section, and the second signal initiation region of determining second side channel signal, described first has
Effect data segment and the second valid data section are adapted to third side channel signal respectively；
Execution module, for being believed according to the first valid data section and the second valid data section first side channel
Number and second side channel signal carry out signal alignment.
7. device according to claim 6, which is characterized in that the execution module is specifically used for:
It determines the first aligned position of the first valid data section and determines the second alignment of the second valid data section
Position；Wherein, first aligned position exists in the relative position of the first valid data section and second aligned position
The relative position of the second valid data section is identical；
First aligned position and second aligned position are aligned to first side channel signal and described second side
Channel signal carries out signal alignment.
8. device according to claim 7, which is characterized in that
First aligned position is the first end position of the first valid data section, accordingly, second alignment bit
It is set to the second end position of the second valid data section；
Alternatively, first aligned position is the First end position of the first valid data section, accordingly, described second pair
Neat position is the second head end position of the second valid data section.
9. device according to claim 6, which is characterized in that second determining module is specifically used for:
It is aligned the first signal starting point of first signal initiation region and the second signal of the second signal initiation region
Starting point is to be aligned first side channel signal and second side channel signal；
If the first signal starting point of first signal initiation region and the second signal of the second signal initiation region rise
Initial point alignment, it is determined that the first valid data section in the first signal initiation region of first side channel signal, and really
The second valid data section in the second signal initiation region of fixed second side channel signal, the first valid data section and
The second valid data section is adapted to third side channel signal respectively.
10. device according to claim 6, which is characterized in that first determining module is specifically used for:
It is determined in the reference valid data section or second side channel signal of first side channel signal by pattern-recognition
Reference valid data section；
It is determined as third side channel signal with reference to the corresponding side channel signal of valid data section for described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710667759.9A CN109391462B (en) | 2017-08-07 | 2017-08-07 | Signal alignment method and device for side channel signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710667759.9A CN109391462B (en) | 2017-08-07 | 2017-08-07 | Signal alignment method and device for side channel signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109391462A true CN109391462A (en) | 2019-02-26 |
| CN109391462B CN109391462B (en) | 2022-04-12 |
Family
ID=65413636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710667759.9A Active CN109391462B (en) | 2017-08-07 | 2017-08-07 | Signal alignment method and device for side channel signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109391462B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4868851A (en) * | 1988-01-26 | 1989-09-19 | Harris Corporation | Signal processing apparatus and method |
| US20110295599A1 (en) * | 2009-01-26 | 2011-12-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Aligning Scheme for Audio Signals |
| CN102394823A (en) * | 2011-11-03 | 2012-03-28 | 中兴通讯股份有限公司 | Multi-channel aligning de-bias method and device |
| CN103581986A (en) * | 2012-07-30 | 2014-02-12 | 京信通信系统（中国）有限公司 | Channel detection method and device |
| CN106712926A (en) * | 2016-11-21 | 2017-05-24 | 中国信息安全测评中心 | Signal processing method and apparatus |
-
2017
- 2017-08-07 CN CN201710667759.9A patent/CN109391462B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4868851A (en) * | 1988-01-26 | 1989-09-19 | Harris Corporation | Signal processing apparatus and method |
| US20110295599A1 (en) * | 2009-01-26 | 2011-12-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Aligning Scheme for Audio Signals |
| CN102394823A (en) * | 2011-11-03 | 2012-03-28 | 中兴通讯股份有限公司 | Multi-channel aligning de-bias method and device |
| CN103581986A (en) * | 2012-07-30 | 2014-02-12 | 京信通信系统（中国）有限公司 | Channel detection method and device |
| CN106712926A (en) * | 2016-11-21 | 2017-05-24 | 中国信息安全测评中心 | Signal processing method and apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 张鹏: "差分功率分析攻击中的信号处理与分析", 《微电子学与计算机》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109391462B (en) | 2022-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MX2018002902A (en) | Cloud integrated vehicle platform. | |
| WO2007018862A3 (en) | Well modeling associated with extraction of hydrocarbons from subsurface formations | |
| ATE434893T1 (en) | SYMBOL CLOCK CORRECTIONS IN A MULTI- CARRIER SYSTEM BY USING CHANNEL ESTIMATION | |
| PH12019500293A1 (en) | Authentication method, device and authentication client | |
| WO2016011445A3 (en) | System and method for verifying non-human traffic | |
| WO2008049032A3 (en) | System and method for secure transaction | |
| SG11201900367SA (en) | Method and device for providing and obtaining graphic code information, and terminal | |
| EP3673399A4 (en) | Method for recognizing fingerprint, and electronic device and storage medium therefor | |
| MX2014012898A (en) | Input method and apparatus. | |
| WO2014182787A3 (en) | Systems and methods for high fidelity multi-modal out-of-band biometric authentication | |
| MY197570A (en) | Security verification method and device for smart card application | |
| MY202171A (en) | Method and apparatus for user authentication based on feature information | |
| WO2013189330A3 (en) | Data backup and recovery method and system for mobile terminal | |
| CN104252531A (en) | File type identification method and device | |
| WO2014194321A3 (en) | Method and apparatus for browsing information | |
| CN105469022A (en) | Fingerprint registration method and system and electronic equipment | |
| CN103176800A (en) | Application program login method and device | |
| CN108171067A (en) | A kind of hard disk encryption method and device | |
| CN109391462A (en) | The signal alignment method and device of side channel signal | |
| CN104637138A (en) | Vehicle access control method and system | |
| CN104298908A (en) | Information processing method and electronic equipment | |
| WO2014153315A3 (en) | Methods and apparatuses for reducing or eliminating unauthorized access to tethered data | |
| CN104933346A (en) | Unlocking method and device based on Logo | |
| CN103763050B (en) | The extracting method of a kind of small-signal and device | |
| CN204991130U (en) | A portable storage device of digital watermark for document is tracked |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |