CN106936581A - The checking system and method for the timestamp of real-time synchronization are sent with Digital Time-stamp device - Google Patents
The checking system and method for the timestamp of real-time synchronization are sent with Digital Time-stamp device Download PDFInfo
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- CN106936581A CN106936581A CN201511029319.8A CN201511029319A CN106936581A CN 106936581 A CN106936581 A CN 106936581A CN 201511029319 A CN201511029319 A CN 201511029319A CN 106936581 A CN106936581 A CN 106936581A
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- 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
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3297—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving time stamps, e.g. generation of time stamps
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Abstract
The present invention provides a kind of checking system and method for the timestamp that real-time synchronization is sent with Digital Time-stamp device, the real-time machine time is provided by Digital Time-stamp device, real-time digital timestamp is covered to digital content using Digital Time-stamp device by providing end again, it is marking position and network location information to provide end record real-time digital timestamp and cover in the position of digital content, and by digital content, real-time digital timestamp, marking position and network location information combination save as trusted digital content, and receiving terminal can obtain trusted digital content from any side, and may be connected to provide whether end confirmation trusted digital content has identical real-time digital timestamp and marking position, so as to confirm the authenticity of received trusted digital content.
Description
Technical field
Sent in real time with Digital Time-stamp device the present invention relates to the checking system and method for timestamp, more particularly to one kind
The checking system and method for synchronous timestamp.
Background technology
In order to objectively prove the sign or seal of papery document really by party signs or with print, and prove papery text
Book in sometime necessary being, typically using Third Party Authentication (such as：The notarization unit of law court, or lawyer notarization) mode
Determine moment and signature or the authenticity with print of papery document presence.
In recent years, become many due to making the situation of various e-files using information processors such as personal computers, think
Gradually increase the need for the Production Time of the produced numerical data of Yao Qing electronic third-parties certifying organization proof and content.
Based on above mentioned problem, constantly there is electronic third-party certifying organization to disclose the skill for realizing electronically validating service
Art.And a variety of electronically validating services, nothing more than being exactly the non-repudiation that proves e-file, its practice is for example：It is required that
Is added a cover to e-file by E-seal for the offer end of e-file；Or one is added a cover on the e-file by digital signature
Reliable Digital Time-stamp (Timestamp).Digital Time-stamp is by a reliable date and time and e-file
Combine.This way is more generally applied in e-commerce transaction.
Patent of invention (CN103281292A) illustrates following several application examples for adding a cover Digital Time-stamp：
1. auctioned on line, it is ensured that accurate bid is sequentially；
2. electronic voting, it is ensured that make ballot in the time for allowing；
3. publish, it was demonstrated that document is published in the given time；
4. game on line, it is ensured that game is carried out before the event,
5. digital copyright management, it is ensured that a certain content is just used only when being allowed to.
In the middle of example application more than, the problem that common need is faced is that Digital Time-stamp is in terms of machine time
The machine time of consistency problem, i.e. Digital Time-stamp has important checking meaning.If only simple recorded electronic file is carried
The machine time of Digital Time-stamp is added a cover for end, because machine time is easily tampered, it is impossible to ensure the accurate of its time
Property and security.When e-file or electronic transaction need to add a cover Digital Time-stamp through excessive people, there is provided when numeral is covered at end
Between stab the otherness also having on machine time, or machine time it is calibrated on otherness, and cause Digital Time-stamp in checking
Orthochronous aspect has suitable difficulty.
And in a variety of othernesses of above-mentioned machine time, being provided in prior art many related to machine time
Various different solutions, for example：Network time agreement (Network Time Protocol；Referred to as：NTP) it is used to
Event provides the common protocol of reliable time measure.It allows the multi-party time estimated between event while property or event
Difference.However, it does not provide the ability proved with persond eixis (time indication).
Webpage on trusted timestamp (Trusted timestamping) in dimension fine jade encyclopaedia (Wikipedia)
(http://en.wikipedia.org/wiki/Trusted_timestamping) describe the difference based on Time Stamping Authority
Solution.These schemes all rely on the certifying organization trusty for providing timestamp.
In the accompanying drawing of this webpage, illustrate that provide end processes (Calculate hash) shape by e-file by Hash
Into after end Hash data is provided, electronic third-party certifying organization (Trusted third party, abbreviation are then sent through：TTP) receive
End Hash data is provided, electronic third-party certifying organization again by provide end Hash data plus Digital Time-stamp again by breathing out
Uncommon treatment (Calculate hash) forms verifying end Hash data, then verifying end Hash data is added with private key
Close generation encryption times stamp data, is returned to the offer end in the lump by encryption times stamp data and Digital Time-stamp again afterwards,
E-file, encryption times stamp data and Digital Time-stamp are combined be stored in into trusted timestamp in the lump again in the offer end
E-file.
When a certain file reception end acquirement trusted timestamp e-file, and trusted timestamp e-file to be proved
Authenticity when, e-file first passed through and provided end identical Hash treatment (Calculate hash) form receiving terminal and breathe out
Uncommon data, receiving terminal hash is used together and the identical Hash treatment of electronic third-party certifying organization with Digital Time-stamp again
(Calculate hash) forms hash to be compared, and encryption times stamp data separately are gone out into verifying end Hash number with public key decryptions
According to, then whether hash more to be compared identical with verifying end hash, by checking if identical, documentary evidence connects
It is that trusted timestamp e-file is true errorless acquired by receiving end, when being trusted otherwise acquired by expression file reception end
Between stab e-file be problematic.
In summary, a known defect of the existing technology that Digital Time-stamp is added a cover in e-file, is that needs are credible
The electronic third-party certifying organization for appointing provides reliable time, and provides the treatment for adding a cover proving time stamp, and needs the
Tripartite's electronically validating mechanism provides specific Hash treatment and verification process (such as：Public key infrastructure Public Key
Infrastructure, is abbreviated as PKI) so that the technology that Digital Time-stamp is added a cover on e-file seems complicated.If the 3rd
Its function of keeping secret (such as stealing data by assault or with backdoor programs) loses in square electronically validating mechanism, and cause its confidentiality and
Authentication function loses benefit, then whole authentication mechanism will be caused trust problem and integrity problem occur.
The content of the invention
Trust problem and reliability on checking e-file is provided for prior art with electronic third-party certifying organization
Problem.The present invention provides a kind of checking system and method for the timestamp that real-time synchronization is sent with Digital Time-stamp device.
A kind of checking system of the timestamp that real-time synchronization is sent with Digital Time-stamp device, including Digital Time-stamp device
And end is provided, Digital Time-stamp device provides the real-time machine time, and the real-time machine time is Digital Time-stamp device institute energy
The minimum time unit of expression, there is provided end covers real-time digital timestamp to digital content using Digital Time-stamp device, there is provided
It is marking position that end record real-time digital timestamp is covered in the position of digital content, and during by digital content, real-time digital
Between stamp and marking position combination save as trusted digital content.
A kind of verification method of the timestamp that real-time synchronization is sent with Digital Time-stamp device, is applied and is filled in Digital Time-stamp
Put and provide between end, the verification method of the timestamp that real-time synchronization is sent with Digital Time-stamp device includes following step
Suddenly, there is provided end provides digital content, there is provided end proposes that the ad-hoc location in digital content is impressed the requirement of impressing of Digital Time-stamp
Respond requirement of impressing to Digital Time-stamp device, Digital Time-stamp device, there is provided real-time digital timestamp gives offer end, there is provided end
It is marking position that record real-time digital timestamp is covered in the position of digital content, and by digital content, real-time digital time
Stamp and marking position combination save as trusted digital content.
A kind of checking system of the timestamp that real-time synchronization is sent with Digital Time-stamp device, including Digital Time-stamp dress
Put, end and receiving terminal are provided, there is provided end provides real-time digital timestamp via Digital Time-stamp device, while recording real-time digital
It is marking position and network location information that timestamp is covered in the position of digital content, and during by digital content, real-time digital
Between the combination of stamp, marking position and network location information save as trusted digital content, receiving terminal obtains trusted from any side
Digital content, receiving terminal extracts real-time digital timestamp, marking position and network location information, and root from trusted digital content
According to network location information from network connection to offer end, and then confirm to provide whether end has identical trusted digital content, when
Receiving terminal confirms that providing end possesses identical trusted digital content, then confirms whether the trusted digital content for providing end has phase
Same real-time digital timestamp and marking position, if then determining that the trusted digital content that receiving terminal is received has truly
Property.
A kind of verification method of the timestamp that real-time synchronization is sent with Digital Time-stamp device, is to apply in Digital Time-stamp
Between device, offer end and receiving terminal, the verification method bag of the timestamp that real-time synchronization is sent with Digital Time-stamp device
Include the following steps, there is provided end provides digital content, there is provided end proposes to be impressed Digital Time-stamp in the ad-hoc location of digital content
Requirement of impressing responds requirement of impressing to Digital Time-stamp device, Digital Time-stamp device, there is provided real-time digital timestamp is to offer
End, there is provided end record real-time digital timestamp cover the position of digital content be marking position, and by digital content, in real time
The combination of Digital Time-stamp, marking position and network location information saves as trusted digital content, and receiving terminal is obtained from any place
Trusted digital content, when receiving terminal sends checking to be required, when receiving terminal extracts real-time digital from trusted digital content
Between stamp, marking position and network location information, receiving terminal according to network location information from network connection to providing end, receiving terminal from
There is provided end to be confirmed whether with identical trusted digital content, when receiving terminal confirms that providing end possesses identical trusted numeral
Content, then confirm whether the trusted digital content for providing end has identical real-time digital timestamp and marking position, if then
Determine that the trusted digital content that receiving terminal is received has authenticity.
Brief description of the drawings
Accompanying drawing 1 is the checking system structure of the timestamp that real-time synchronization is sent with Digital Time-stamp device of one embodiment
Schematic diagram.
Accompanying drawing 2 is the verification method method of the timestamp that real-time synchronization is sent with Digital Time-stamp device of one embodiment
Flow chart.
Accompanying drawing 3 is illustrated for the checking system of the timestamp for sending real-time synchronization with Digital Time-stamp device of one embodiment
Figure.
Accompanying drawing 4 sends the verification method flow of the timestamp of real-time synchronization for the Digital Time-stamp device of one embodiment
Figure.
Specific embodiment
In order that the purpose of the present invention, technical scheme and feature become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that embodiment described herein is only used to explain the present invention, but and without
It is of the invention in limiting.
With reference to shown in Fig. 1, a kind of checking system of the timestamp that real-time synchronization is sent with Digital Time-stamp device of the invention
System, including Digital Time-stamp device 1 and offer end 2, the Digital Time-stamp device 1 provides the real-time machine time, described real-time
The minimum time unit person that machine time 10 can be represented for Digital Time-stamp device 1, it is however generally that, Digital Time-stamp device 1
Operating system (Operting System, abbreviation that the minimum time system of units that can be provided is used with it：OS) or it is related
The data treatment digit of application software (or application program) is relevant, there is provided end 2 is using Digital Time-stamp device 1 to digital content
3 cover real-time digital timestamp 30, while, there is provided end records real-time digital timestamp 30 and covers and is in the position of digital content
Marking position 32, and the combination of digital content 3, real-time digital timestamp 30 and marking position 32 is saved as into trusted digital content
4。
In the present invention, Digital Time-stamp device 1 can be hardware device or software, and Digital Time-stamp device 1 is at least to wrap
Timing unit 10, timing correction unit 12, Digital Time-stamp generation unit 14 are included, timing unit 10 provides timing time, timing
Correction unit 12 connection timing unit 10 and universal time end 5, universal time end 5 provides universal time, meter
Shi Jiaozheng units 12 obtain universal time from universal time end 5, and use time is compared with normal operation method (such as：Network time
Agreement (Network Time Protocol；Referred to as：NTP)) calibration universal time is prover time, and by prover time
It is supplied to timing unit 10 as its timing time, Digital Time-stamp generation unit 14 is connected with timing unit 10, digit time
Stamp generation unit 14 be activated after, using timing unit 10 timing time provide the real-time machine time to digital content 3 as
Real-time digital timestamp 30 is simultaneously covered in marking position.
In the present invention, the time of the timing correction unit 12 of Digital Time-stamp device 1 is compared with normal operation method, including digit time
After Digital Time-stamp device 1 of the stamp device 1 from universal time end 5 from other different time zone positions confirms response time difference,
With the universal time at universal time end 5 and response time difference calibration universal time as prover time.
In the present invention, Digital Time-stamp device 1 can set for hardware such as Wearable electronic installation, vivo implantation type timers
Standby, Wearable electronic installation can be smart watch, intelligent glasses, intelligent necklace etc., can be attached to human contact
On human body, all can be referred to as Wearable electronic installation by the present invention.It can be computer, tablet PC, many matchmakers to provide end 2
The electronic communication product with connection network function such as body AV device or Smart Phone, and Digital Time-stamp device 1
It refer to then the application program etc. that may be mounted at computer, tablet PC, multimedia video and audio device or Smart Phone
Software.Therefore it provides end 2 can provide the real-time machine time from outside Digital Time-stamp device 1, or it is to provide in end 2
The Digital Time-stamp device 1 built provides the real-time machine time.
In the present invention, in order to further strengthen the confidence level of trusted digital content, there is provided end 2 uses number
Word time stamp device 1 covers real-time digital timestamp to digital content 3, meanwhile, further record provides the place geography at end 2
The latitude and longitude coordinates that positional information, such as global positioning system (Global Positioning System, abbreviation GPS) are provided
Value, above-mentioned geographical location information can be provided by providing end or Digital Time-stamp device.The privacy at end 2 is provided to protect, can
Geographical location information is provided with least one offer end 2 arround or Digital Time-stamp device 1, it is possible to which filling record is geographical
The source of positional information.
In the present invention, testing for distal end can be carried out in the environment of internet to provide trusted digital content 4
Card, there is provided when end 2 covers real-time digital timestamp 30 using Digital Time-stamp device 1 to digital content 3, there is provided end 2 more enters one
Step record can inquire the network location information for providing end, for example：Internet Protocol address (Internet Protocol
Address, referred to as：IP address), function name variable (Domain Name) or media access control address (Media Access
Control Address, referred to as：MAC Address) etc..
With reference to shown in Fig. 2, a kind of authentication of the timestamp that real-time synchronization is sent with Digital Time-stamp device of the invention
Method, applies between Digital Time-stamp device and offer end, and comprise the following steps：
S201, there is provided end provides digital content；
S202, there is provided end propose digital content ad-hoc location impress Digital Time-stamp impress requirement to digit time
Stamp device；
S203, Digital Time-stamp device responds requirement of impressing, there is provided real-time digital timestamp gives offer end；
S204, there is provided it is marking position that end record real-time digital timestamp is covered in the position of digital content；
S205, there is provided end saves as in trusted numeral the combination of digital content, real-time digital timestamp and marking position
Hold.
In an embodiment of the present invention, there is provided end can be computer, tablet PC, multimedia video and audio device or intelligence
The electronic communication product with connection network function such as type mobile phone, illustrates by taking computer as an example in the present embodiment.
And digital content can be digital audio-video file, digital audio file, digital document etc., in the present embodiment with Portable document
Illustrated as a example by the digital document of form (Portable Document Format, abbreviation PDF).Digital Time-stamp device system
Can be the hardware devices such as Wearable electronic installation, vivo implantation type timer, Wearable electronic installation can be smart watch, intelligence
Energy type glasses etc., are illustrated with smart watch in the present embodiment, and in the present embodiment, user's operation computer is completed
One PDF digital document, now, user's operation computer sends requirement of impressing to smart watch, and smart watch is to carry
For real-time digital timestamp to computer, computer re-records real-time digital timestamp and covers impressing in PDF digital documents afterwards
The combination of digital content, real-time digital timestamp and marking position is saved as trusted digital content by position, last computer.
Shown in refer to the attached drawing 3, the present invention provides a kind of testing for timestamp that real-time synchronization is sent with Digital Time-stamp device
Card system, its checking system substantially to the timestamp for sending real-time synchronization with Digital Time-stamp device shown in Fig. 1 is similar, and two
Person does not exist together for the checking system of the above-mentioned timestamp that real-time synchronization is sent with Digital Time-stamp device also includes receiving terminal 6, with
And offer end 2 covers real-time digital timestamp 30 using Digital Time-stamp device 1 to digital content 3, while, there is provided end 2 records
It is marking position 32 and network location information 34 that real-time digital timestamp 30 is covered in the position of digital content 3, and by numeral
The combination of content 3, real-time digital timestamp 30, marking position 32 and network location information 34 saves as trusted digital content 4, and
Receiving terminal 6 obtains trusted digital content 4 from any side 7, and receiving terminal 6 extracts the real-time digital time from trusted digital content 4
Stamp 30, marking position 32 and network location information 34, and according to network location information 34 from network connection to offer end 2, and then
Confirm to provide whether end 2 has identical trusted digital content 4, when receiving terminal 6 confirms that providing end 2 possesses identical trusted number
Word content 4, then confirm whether the trusted digital content 4 for providing end 2 has identical real-time digital timestamp 30 and marking position
32, if then determining that the trusted digital content 4 that receiving terminal 6 is received has authenticity.
In the present invention, there is provided end 2 covers real-time digital timestamp 30 using Digital Time-stamp device 1 to digital content 3,
Simultaneously, there is provided end 2 records biological information, for example：The voice of user, fingerprint or the DNA at end 2 etc. be provided, and by numeral
The combination of content 3, real-time digital timestamp 30, marking position 32, network location information 34 and biological information saves as credible
Appoint digital content 4, and then the trust degree (or non-repudiation) of trusted digital content 4 can be increased, in this way, appropriator is
The offer digital content 3 of end 2, real-time digital timestamp 30, marking position 32, network location information 34, but appropriator are provided
Without the biological information for providing end 2, then the trusted digital content 4 with authenticity cannot be produced.
In the present invention, when the trusted digital content 4 that receiving terminal 6 is received does not have authenticity, receiving terminal 6 can profit
Information warning is transmitted to end 2 is provided with network location information 34, offer end is known that e-file is stolen or by assault.
With reference to shown in Fig. 4, the Digital Time-stamp device that the present invention is provided sends the verification method of the timestamp of real-time synchronization,
Apply in Digital Time-stamp device, provide between end and receiving terminal, methods described comprises the following steps：
S401, there is provided end provides digital content；
S402, there is provided end propose digital content ad-hoc location impress Digital Time-stamp impress requirement to digit time
Stamp device；
S403, Digital Time-stamp device responds requirement of impressing, and provides real-time digital timestamp and give offer end；
S404, there is provided it is marking position that end record real-time digital timestamp is covered in the position of digital content；
S405, trusted is saved as by the combination of digital content, real-time digital timestamp, marking position and network location information
Digital content；
S406, receiving terminal obtains trusted digital content from any place；
S407, when receiving terminal sends checking to be required, receiving terminal extracts the real-time digital time from trusted digital content
Stamp, marking position and network location information；
S408, receiving terminal is according to network location information from network connection to offer end；
S409, receiving terminal is confirmed whether with identical trusted digital content from end is provided, if carrying out step S410,
Otherwise carry out step S412；
S410, receiving terminal confirms whether the trusted digital content for providing end has identical real-time digital timestamp and lid again
Print position, if carrying out step S411, otherwise carries out step S412；
S411, receiving terminal determines that received trusted digital content has authenticity；
S412, receiving terminal determines that received trusted digital content does not have authenticity.
In another embodiment of the invention, substantially identical with foregoing embodiment, it does not exist together for receiving terminal can be
The telecommunications with connection network function such as computer, tablet PC, multimedia video and audio device or Smart Phone
Product, is illustrated by providing end by taking computer as an example in the present embodiment, and receiving terminal is carried out by taking Smart Phone as an example
Explanation.And digital content is still with the digital document of portable file format (Portable Document Format, abbreviation PDF)
As a example by illustrate.Digital Time-stamp device thinks that the application program that computer is installed is illustrated in the present embodiment.At this
In embodiment, user's operation computer completes a PDF digital document, and now, user's operation computer sends to impress to be wanted
Seek computer application program of giving, computer application program is to provide real-time digital timestamp to computer, afterwards computer
Re-record real-time digital timestamp and cover marking position and network location information in PDF digital documents, last computer is by numeral
The combination of content, real-time digital timestamp, marking position and network location information saves as trusted digital content, afterwards, intelligence
Memory card or arbitrarily obtain trusted digital content in side's address e-mail that type mobile phone is provided from any side, it is intelligent
Mobile phone from trusted digital content take out computer network location information (such as：IP positions), Smart Phone root
According to network location information from network connection to computer, Smart Phone is confirmed whether credible with identical from computer
Appoint digital content, when Smart Phone confirms that providing end possesses identical trusted digital content, and confirm computer
Trusted digital content has identical real-time digital timestamp and marking position, it is determined that what Smart Phone was received
Trusted digital content has authenticity, and otherwise whether computer does not have identical trusted digital content, real-time digital
One of timestamp and marking position, then the trusted digital content that Smart Phone is received is i.e. without true
Property.
In sum, digital content conversion of the invention stores into trusted digital content and needs not move through electronic third-party
Any treatment of certifying organization, trusted digital content needs not move through the checking of electronic third-party certifying organization its authenticity, only
Need voluntarily to be verified between recipient and provider, the present invention provides letter in terms of the checking true and false of digital content
Single, safe and accurate efficient system and method.Knowable to above-described embodiment, Digital Time-stamp device can be built-in for computer
Operating system provide, or outside smart watch provide, additionally, the Digital Time-stamp device of outside with provide end
The time of (computer) built-in operating system can be synchronous.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (15)
1. a kind of checking system of the timestamp that real-time synchronization is sent with Digital Time-stamp device, it is characterised in that including：
Digital Time-stamp device, there is provided real-time machine time, the real-time machine time can represent for Digital Time-stamp device
Minimum time unit；
End is provided, the real-time digital timestamp is covered to digital content using the Digital Time-stamp device, and record real-time
It is marking position that Digital Time-stamp is covered in the position of the digital content, and by the digital content, real-time digital time
Stamp and marking position combination save as trusted digital content.
2. the checking system of the timestamp that real-time synchronization is sent with Digital Time-stamp device according to claim 1, it is special
Levy and be, the Digital Time-stamp device includes：
Timing unit, exports timing time；
Timing corrects unit, connects the timing unit and universal time end, and the universal time end provides international
Standard time, the timing corrects unit and obtains the universal time, and use time from the universal time end
It is prover time compared with normal operation method calibration universal time, and the prover time is supplied to the timing unit as described
Timing time；
Digital Time-stamp generation unit, the Digital Time-stamp generation unit is connected with the timing unit, the digit time
After stamp generation unit is activated, using the timing time instantly of the timing unit as the real-time machine time to the numeral
The marking position of content.
3. the checking system of the timestamp that real-time synchronization is sent with Digital Time-stamp device according to claim 2, it is special
Levy and be, the time of the timing correction unit of the Digital Time-stamp device is compared with normal operation method, including the Digital Time-stamp device
From universal time end never simultaneously zone position Digital Time-stamp device confirm the response time difference after, with the international standard
The time universal time calibration universal time poor with the response time at end is prover time.
4. the checking system of the timestamp that real-time synchronization is sent with Digital Time-stamp device according to claim 1, it is special
Levy and be, the Digital Time-stamp device is Wearable electronic installation or vivo implantation type timer.
5. the checking system of the timestamp that real-time synchronization is sent with Digital Time-stamp device according to claim 1, it is special
Levy and be, the Digital Time-stamp device refers to and may be mounted at computer, tablet PC, multimedia video and audio device or intelligent
The application program of mobile phone.
6. the checking system of the timestamp that real-time synchronization is sent with Digital Time-stamp device according to claim 1, it is special
Levy and be, the offer end covers real-time digital timestamp using Digital Time-stamp device to the digital content, further note
Geographical location information where the offer end is provided, and by the digital content, the real-time digital timestamp, the position of impressing
Put and geographical location information combination saves as trusted digital content.
7. the checking system of the timestamp that real-time synchronization is sent with Digital Time-stamp device according to claim 6, it is special
Levy and be, the geographical location information is provided by the offer end or the Digital Time-stamp device.
8. the checking system of the timestamp that real-time synchronization is sent with Digital Time-stamp device according to claim 6, it is special
Levy and be, offer end or the Digital Time-stamp device of the geographical location information arround provide geographical location information, and
Filling records the source of the geographical location information, and by the digital content, real-time digital timestamp, marking position, geography
The source combination of positional information and geographical location information saves as trusted digital content.
9. the checking system of the timestamp that real-time synchronization is sent with Digital Time-stamp device according to claim 1, it is special
Levy and be, the offer end covers real-time digital timestamp, the offer to the digital content using Digital Time-stamp device
End also record can inquire the network location information for providing end.
10. the checking system of the timestamp that real-time synchronization is sent with Digital Time-stamp device according to claim 9, it is special
Levy and be, the offer end covers real-time digital timestamp to digital content using Digital Time-stamp device, there is provided end record life
Thing characteristic information, and the digital content, real-time digital timestamp, marking position, network location information and biological characteristic are believed
Breath combination saves as trusted digital content.
11. a kind of verification methods of the timestamp that real-time synchronization is sent with Digital Time-stamp device, it is characterised in that described with number
The verification method of the timestamp that word time stamp device sends real-time synchronization is applied between Digital Time-stamp device and offer end, bag
Include the following steps：
End is provided digital content is provided；
There is provided end propose digital content ad-hoc location impress Digital Time-stamp impress requirement give Digital Time-stamp device；
Digital Time-stamp device responds requirement of impressing, there is provided real-time digital timestamp gives the offer end；
It is marking position that the offer end record real-time digital timestamp is covered in the position of the digital content；
The combination of digital content, real-time digital timestamp and marking position is saved as trusted digital content by the offer end.
A kind of 12. checking systems of the timestamp that real-time synchronization is sent with Digital Time-stamp device, it is characterised in that including：
Digital Time-stamp device, there is provided real-time machine time, what the real-time machine time figure time-stamp device can be represented
Minimum time unit；
End is provided, real-time digital timestamp is covered to digital content using Digital Time-stamp device, and record the real-time digital time
Stamp cover the position of the digital content be marking position and network location information, and by the digital content, in real time number
Word time stamp, marking position and network location information combination save as trusted digital content；
Receiving terminal, trusted digital content is obtained from any side, and the receiving terminal extracts real-time from the trusted digital content
Digital Time-stamp, marking position and network location information, and according to the network location information from network connection to the offer
End, and then confirm whether the offer end has identical trusted digital content, real-time digital timestamp and marking position, when true
Determining the trusted digital content that receiving terminal received has identical trusted digital content, real-time digital timestamp and position of impressing
Put, the receiving terminal determines that the trusted digital content obtained from any side is true.
13. a kind of verification methods of the timestamp that real-time synchronization is sent with Digital Time-stamp device, it is characterised in that described with number
The verification method of the timestamp that word time stamp device sends real-time synchronization is applied in Digital Time-stamp device, provides end and receiving terminal
Between, comprise the following steps：
End is provided digital content is provided；
There is provided end propose the digital content ad-hoc location impress Digital Time-stamp impress requirement to the digit time
Stamp device；
The Digital Time-stamp device responds the requirement of impressing, there is provided real-time digital timestamp is to the offer end；
It is marking position that the offer end records the real-time digital timestamp and covers in the position of digital content, and will be described
The combination of digital content, real-time digital timestamp, marking position and network location information saves as trusted digital content；
The receiving terminal obtains trusted digital content from any place；
When the receiving terminal sends checking to be required, the receiving terminal extracts the real-time digital time from trusted digital content
Stamp, marking position and network location information；
The receiving terminal is according to the network location information from network connection to offer end；
The receiving terminal is confirmed whether with identical trusted digital content from end is provided；
When the receiving terminal confirms there is identical trusted digital content from end is provided, the receiving terminal confirms the offer again
Whether the trusted digital content at end has identical real-time digital timestamp and marking position；
When receiving terminal determines that received trusted digital content has identical real-time digital timestamp and marking position, then really
The fixed trusted digital content is true.
The verification method of 14. timestamps that real-time synchronization is sent with Digital Time-stamp device according to claim 13, its
It is characterised by, when receiving terminal confirms do not have identical trusted digital content from end is provided, it is determined that the trusted numeral
Content is non-genuine.
The verification method of 15. timestamps that real-time synchronization is sent with Digital Time-stamp device according to claim 13, its
It is characterised by, when receiving terminal determines that received trusted digital content does not have identical real-time digital timestamp and position of impressing
Put, it is determined that the trusted digital content is non-genuine.
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