CN107046464A - Secrecy intercom system and method based on quantum cryptography - Google Patents
Secrecy intercom system and method based on quantum cryptography Download PDFInfo
- Publication number
- CN107046464A CN107046464A CN201710247302.2A CN201710247302A CN107046464A CN 107046464 A CN107046464 A CN 107046464A CN 201710247302 A CN201710247302 A CN 201710247302A CN 107046464 A CN107046464 A CN 107046464A
- Authority
- CN
- China
- Prior art keywords
- intercom
- key
- quantum
- intercoms
- main
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000006854 communication Effects 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000000284 extract Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0852—Quantum cryptography
- H04L9/0858—Details about key distillation or coding, e.g. reconciliation, error correction, privacy amplification, polarisation coding or phase coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
- H04Q5/245—Circuit arrangements in which for one subscriber low frequency speech and/or signalling signals proceed on the line, while for the other subscriber the low frequency speech and/or signalling signals are modulated upon a high frequency carrier signal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses the secrecy intercom system based on quantum cryptography and method, including main intercom, some group leader's intercoms and some group member's intercoms, the main intercom also includes quantum random number generator, for generating the quantum key with truly random property, quantum key is stored in the cipher key storage block, downloaded for other intercoms, communication process is that calling party sends information to recipient, recipient's intercom extracts corresponding quantum key from cipher key storage block, such as without corresponding secret key, termination of a call, if there is corresponding secret key to complete decryption, start communication, recipient receives transmission information, and provide information reception feedback, ceased communication after the end of transmission.The present invention is had truly random property, encrypted by the way of the isometric XOR of quantum key and information, message transmitting procedure unconditional security using the quantum key produced by quantum random number generator, the key.
Description
Technical field
The present invention relates to the communications field, and in particular to secrecy intercom system and method based on quantum cryptography.
Background technology
In current intercom field, the voice transfer of intercom is directly launched and received, and is not added using any
Close means；Part intercom prevents invalid user stealing channel from networking using modes such as CTCSS, DTCSS, in general, when right
The machine of saying is set after these privacy functions, and dialog context can not be heard by not knowing about private line code used, but this is not real meaning
Speech security in justice.It is only useful to being not intended to listener-in because its function of keeping secret is very limited, and be nothing to intentional listener-in
, function of keeping secret is very limited." secret " line is cannot rely on for needing the user of security requirements to maintain secrecy.
Different squads is in different communication frequency range in current intercom system, and scheduling needs switching channels, it has not been convenient to crew
Broadcast.
The content of the invention
It is an object of the invention to the problem above for overcoming prior art presence, there is provided the secrecy intercommunication based on quantum cryptography
System and method, the present invention has truly random property using the quantum key produced by quantum random number generator, the key, uses
The mode of quantum key and the isometric XOR of information is encrypted, message transmitting procedure unconditional security.
It is an aspect of the invention to provide the secrecy intercom system based on quantum cryptography, including main intercom, some groups
Long intercom and some group member's intercoms, communicate between the main intercom, some group leader's intercoms and some group member's intercoms
Every intercom in connection, the main intercom, some group leader's intercoms and some group member's intercoms includes core and controlled
Circuit；
Microphone, is connected with the core control circuit, for gathering voice messaging；
Analog-to-digital conversion module, is connected with the microphone, and the voice messaging of collection is converted into data signal；
Information storage module, is connected with the analog-to-digital conversion module, for caching data signal；
Quantum cryptography encryption/decryption module, is connected with described information memory module, for completing encryption and decryption to data signal
Task；
Cipher key storage block, is connected with the quantum cryptography encryption/decryption module, for storing quantum key；
Loudspeaker, is connected with described information memory module, for playing voice messaging；
The main intercom also includes quantum random number generator, is connected with the cipher key storage block, has very for generating
The quantum key of randomness, is downloaded for other intercoms.
Further, every intercom in the main intercom, some group leader's intercoms and some group member's intercoms is also
Including some push-to-talk buttons, it is connected with the core control circuit, the different conversation object of different push-to-talk button correspondences.
Further, the main intercom also includes:
Pbs layer quantum key button, is connected with the core control circuit, for all some group leader's intercoms and some
Group member's intercom downloads identical pbs layer quantum key；
Management level quantum key button, is connected with the core control circuit, and phase is downloaded for all some group leader's intercoms
Same management level quantum key；
Some squad's quantum key buttons, are connected with the core control circuit, for certain group leader's intercom and its corresponding some
Group member's intercom downloads identical squad quantum key.
Further, the main intercom, some group leader's intercoms and some group member's intercoms also include size of key detection
Module, is connected with the cipher key storage block, for detecting the number of keys in the cipher key storage block.
Further, the main intercom, some group leader's intercoms and some group member's intercoms also include siren, with institute
Core control circuit connection is stated, for warning any size of key of the variant conversation object of correspondence in the cipher key storage block not
Foot.
Another aspect of the present invention is to provide a kind of secrecy intercommunication method based on quantum cryptography, applied to main intercom,
Communication between some group leader's intercoms and some group member's intercoms, comprises the following steps when sending message：
1）The corresponding push-to-talk button of a certain conversation object is pinned, microphone gathers voice messaging,
2）The voice messaging of collection is converted to data signal by analog-to-digital conversion module,
3）Data signal is cached into information storage module,
4）Call quantum key corresponding with the push-to-talk button that data signal is encrypted,
5）The data signal of encryption is sent；
Comprise the following steps when receiving message：
1）The data signal of encryption is received,
2）Data signal is cached into information storage module,
3）Corresponding quantum key is extracted from cipher key storage block, such as without corresponding secret key, caching ciphertext is deleted, is directly entered step
5）If thering is corresponding secret key to complete decryption, into step 4）,
4）Ciphertext is output as voice messaging through loudspeaker,
5）Task terminates.
Further, described to pin the corresponding push-to-talk button of a certain conversation object, microphone is gathered before voice messaging, also
Including eligible task before call, eligible task is respectively distribution key with before the call of the main intercom and other intercoms
Carry key.
Further, the ciphertext is output as after voice messaging through loudspeaker, in addition to all intercoms return to main pair
Say at machine and delete the quantum key in cipher key storage block.
The beneficial effects of the invention are as follows:
Quantum key of the quantum random number generator generation with truly random property is set in main intercom and is stored in cipher key storage block,
Other intercoms download quantum key by main intercom, and symmetric key is shared with main intercom；Cipher mode is used " one time one
It is close " cipher system, i.e., by the way of information and the isometric XOR of key to information encrypt, every time encryption use different passwords
Message transmitting procedure unconditional security；Do not have not communicating between the intercom for sharing identical quantum key in the system, therefore
Squad's communication will not be interfered, therefore different squad is without in different frequency range, facilitating main frame to be scheduled and to issue crew wide
Broadcast.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
The embodiment of the present invention is shown in detail by following examples and its accompanying drawing.
Brief description of the drawings
Technical scheme in technology in order to illustrate the embodiments of the present invention more clearly, in being described below to embodiment technology
The required accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present invention
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is main intercom structural representation of the invention；
Fig. 2 is group leader of the present invention/group member's intercom structural representation；
Fig. 3 is secrecy intercommunication Base communication flow chart of the present invention；
Fig. 4 is that the present invention sends message and receives message particular flow sheet；
Fig. 5 is that main intercom of the invention sends message flow chart；
Fig. 6 is that group leader's intercom of the present invention sends message flow chart；
Fig. 7 is that group member's intercom of the present invention sends message flow chart；
Fig. 8 is that main intercom of the invention receives message flow chart；
Fig. 9 is that group leader's intercom of the present invention/group member's intercom receives message flow chart.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
It is shown referring to Figures 1 and 2, the present invention provide the secrecy intercom system based on quantum cryptography, if including main intercom,
Dry group leader's intercom and some group member's intercoms, between the main intercom, some group leader's intercoms and some group member's intercoms
Every intercom in communication connection, the main intercom, some group leader's intercoms and some group member's intercoms includes core
Control circuit；
Microphone, is connected with the core control circuit, for gathering voice messaging；
Analog-to-digital conversion module, is connected with the microphone, and the voice messaging of collection is converted into data signal；
Information storage module, is connected with the analog-to-digital conversion module, for caching data signal；
Quantum cryptography encryption/decryption module, is connected with described information memory module, for completing encryption and decryption to data signal
Task；
Cipher key storage block, is connected with the quantum cryptography encryption/decryption module, for storing quantum key；
Loudspeaker, is connected with described information memory module, for playing voice messaging；
The main intercom also includes quantum random number generator, is connected with the cipher key storage block, has very for generating
The quantum key of randomness, is downloaded for other intercoms.
Every intercom in the main intercom, some group leader's intercoms and some group member's intercoms also includes some logical
Button is talked about, is connected with the core control circuit, the different conversation object of different push-to-talk button correspondences.
The main intercom also includes:
Pbs layer quantum key button, is connected with the core control circuit, for all some group leader's intercoms and some
Group member's intercom downloads identical pbs layer quantum key；
Management level quantum key button, is connected with the core control circuit, and phase is downloaded for all some group leader's intercoms
Same management level quantum key；
Some squad's quantum key buttons, are connected with the core control circuit, for certain group leader's intercom and its corresponding some
Group member's intercom downloads identical squad quantum key.
The main intercom, some group leader's intercoms and some group member's intercoms also include size of key detection module, with institute
Cipher key storage block connection is stated, for detecting the number of keys in the cipher key storage block.
The main intercom, some group leader's intercoms and some group member's intercoms also include siren, with the core control
Circuit connection processed, for warning any size of key of the variant conversation object of correspondence in the cipher key storage block not enough, works as institute
When stating size of key detection module and detecting in cipher key storage block any size of key of the variant conversation object of correspondence less than 15%,
The siren sends warning and reminded, to download quantum key from main intercom.
Shown in reference picture 3 and Fig. 4, the present invention provides a kind of secrecy intercommunication method based on quantum cryptography, applied to main pair
The communication between machine, some group leader's intercoms and some group member's intercoms is said, Base communication flow sends information to for calling party
Recipient, recipient's intercom extracts corresponding quantum key from cipher key storage block, such as without corresponding secret key, termination of a call, if
There is corresponding secret key to complete decryption, start communication, recipient receives transmission information, and provide information and receive after feedback, the end of transmission
Ceased communication.
Do not have not communicating between the intercom for sharing identical quantum key in the system, therefore squad's communication will not be mutual
Interference, therefore different squads are without in different frequency range, facilitating main frame to be scheduled and issue crew's broadcast.
Comprise the following steps when sending message in specific communication process：
1）The corresponding push-to-talk button of a certain conversation object is pinned, microphone gathers voice messaging,
2）The voice messaging of collection is converted to data signal by analog-to-digital conversion module,
3）Data signal is cached into information storage module,
4）Call quantum key corresponding with the push-to-talk button that data signal is encrypted,
5）The data signal of encryption is sent；
Comprise the following steps when receiving message：
1）The data signal of encryption is received,
2）Data signal is cached into information storage module,
3）Corresponding quantum key is extracted from cipher key storage block, such as without corresponding secret key, caching ciphertext is deleted, is directly entered step
5）If thering is corresponding secret key to complete decryption, into step 4）,
4）Ciphertext is output as voice messaging through loudspeaker,
5）Task terminates.
Described to pin the corresponding push-to-talk button of a certain conversation object, microphone is gathered before voice messaging, in addition to call
Preceding eligible task, eligible task is respectively distribution key and downloads key before the call of the main intercom and other intercoms.
The ciphertext is output as after voice messaging through loudspeaker, in addition to all intercoms are returned at main intercom and deleted
Except the quantum key in cipher key storage block.Cipher mode uses the cipher system of " one-time pad ", i.e., using information and key
The mode of isometric XOR is encrypted to information, and encryption every time uses different encrypted message transmitting procedure unconditional securities.
Main intercom includes management level push-to-talk button, broadcast button and some squad's push-to-talk buttons, as shown in figure 5, main pair
Say that the flow that machine sends message is：Main intercom is completed after distribution key task, is selected conversation object, when being conversed with group leader, is pressed
Lower management level push-to-talk button, consumes management level quantum key, sends encryption file；When being conversed with squad, press corresponding squad and lead to
Button is talked about, corresponding squad's quantum key is consumed, encryption file is sent；When being conversed with crew, broadcast button is pressed, pbs layer is consumed
Quantum key.
As shown in figure 8, the flow that main intercom receives message is：Main intercom receives encryption file, and main frame has all
Key, calls corresponding quantum key to decrypt, and obtains cleartext information, end of conversation.
Group leader's intercom includes management level push-to-talk button and group member's broadcast button, disappears as shown in fig. 6, group leader's intercom is sent
The flow of breath is：Group leader's intercom completes to download after key task, conversation object is selected, when being conversed with main intercom, by down tube
Layer push-to-talk button is managed, management level quantum key is consumed, encryption file is sent, when being conversed with group member, presses group member's broadcast button, disappear
Squad's quantum key is consumed, encryption file is sent.
As shown in fig. 7, the flow that group member's intercom sends message is, group member's intercom completes to download after key task, presses
Lower push-to-talk button, consumption squad quantum key, sends encryption file.
As shown in figure 9, the flow that group leader's intercom and group member's intercom receive message is：Intercom receives encryption file,
Corresponding quantum key is called, such as without corresponding secret key, encryption file, end of conversation is deleted, if there is corresponding secret key to complete decryption, obtains
Cleartext information, end of conversation.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (8)
1. the secrecy intercom system based on quantum cryptography, including main intercom, some group leader's intercoms and some group member's intercoms,
Communicated to connect between the main intercom, some group leader's intercoms and some group member's intercoms, it is characterised in that, the main intercommunication
Every intercom in machine, some group leader's intercoms and some group member's intercoms includes core control circuit；
Microphone, is connected with the core control circuit, for gathering voice messaging；
Analog-to-digital conversion module, is connected with the microphone, and the voice messaging of collection is converted into data signal；
Information storage module, is connected with the analog-to-digital conversion module, for caching data signal；
Quantum cryptography encryption/decryption module, is connected with described information memory module, for completing encryption and decryption to data signal
Task；
Cipher key storage block, is connected with the quantum cryptography encryption/decryption module, for storing quantum key；
Loudspeaker, is connected with described information memory module, for playing voice messaging；
The main intercom also includes quantum random number generator, is connected with the cipher key storage block, has very for generating
The quantum key of randomness, is downloaded for other intercoms.
2. the secrecy intercom system based on quantum cryptography according to claim 1, it is characterised in that if the main intercom,
Every intercom in dry group leader's intercom and some group member's intercoms also includes some push-to-talk buttons, and electricity is controlled with the core
Road is connected, the different conversation object of different push-to-talk button correspondences.
3. the secrecy intercom system based on quantum cryptography according to claim 2, it is characterised in that the main intercom is also wrapped
Include:
Pbs layer quantum key button, is connected with the core control circuit, for all some group leader's intercoms and some
Group member's intercom downloads identical pbs layer quantum key；
Management level quantum key button, is connected with the core control circuit, and phase is downloaded for all some group leader's intercoms
Same management level quantum key；
Some squad's quantum key buttons, are connected with the core control circuit, for certain group leader's intercom and its corresponding some
Group member's intercom downloads identical squad quantum key.
4. the secrecy intercom system based on quantum cryptography according to claim 3, it is characterised in that if the main intercom,
Dry group leader's intercom and some group member's intercoms also include size of key detection module, are connected, are used for the cipher key storage block
Detect the number of keys in the cipher key storage block.
5. the secrecy intercom system based on quantum cryptography according to claim 4, it is characterised in that if the main intercom,
Dry group leader's intercom and some group member's intercoms also include siren, are connected with the core control circuit, described for warning
Any size of key of the variant conversation object of correspondence is not enough in cipher key storage block.
6. a kind of secrecy intercommunication method based on quantum cryptography, applied to main intercom, some group leader's intercoms and some group members
Communication between intercom, it is characterised in that comprise the following steps when sending message：
1）The corresponding push-to-talk button of a certain conversation object is pinned, microphone gathers voice messaging,
2）The voice messaging of collection is converted to data signal by analog-to-digital conversion module,
3）Data signal is cached into information storage module,
4）Call quantum key corresponding with the push-to-talk button that data signal is encrypted,
5）The data signal of encryption is sent；
Comprise the following steps when receiving message：
1）The data signal of encryption is received,
2）Data signal is cached into information storage module,
3）Corresponding quantum key is extracted from cipher key storage block, such as without corresponding secret key, caching ciphertext is deleted, is directly entered step
5）If thering is corresponding secret key to complete decryption, into step 4）,
4）Ciphertext is output as voice messaging through loudspeaker,
5）Task terminates.
7. the secrecy intercommunication method based on quantum cryptography according to claim 6, it is characterised in that described to pin a certain call
The corresponding push-to-talk button of object, microphone collection voice messaging before, in addition to call before eligible task, the main intercom and
Eligible task is respectively distribution key and downloads key before the call of other intercoms.
8. the secrecy intercommunication method based on quantum cryptography according to claim 6, it is characterised in that the ciphertext is through loudspeaker
It is output as after voice messaging, in addition to all intercoms are returned at main intercom and to delete the quantum in cipher key storage block close
Key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710247302.2A CN107046464A (en) | 2017-04-17 | 2017-04-17 | Secrecy intercom system and method based on quantum cryptography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710247302.2A CN107046464A (en) | 2017-04-17 | 2017-04-17 | Secrecy intercom system and method based on quantum cryptography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107046464A true CN107046464A (en) | 2017-08-15 |
Family
ID=59545873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710247302.2A Pending CN107046464A (en) | 2017-04-17 | 2017-04-17 | Secrecy intercom system and method based on quantum cryptography |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107046464A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707350A (en) * | 2017-11-19 | 2018-02-16 | 天津光电安辰信息技术股份有限公司 | A kind of voice communication system based on Cipher Feedback |
| KR102420977B1 (en) * | 2021-12-22 | 2022-07-15 | 한화시스템 주식회사 | Encryption processing unit for inter-operation of radio, encryption unit and intercom, and intercommunication system and method using the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051444A (en) * | 2012-12-31 | 2013-04-17 | 安徽问天量子科技股份有限公司 | Quantum security digital terminal applied to PSTN (Public Switched Telephone Network) |
| CN204392484U (en) * | 2015-02-06 | 2015-06-10 | 长春大学 | A kind of quantum key encryption wireless intercom device |
| CN104780040A (en) * | 2015-04-06 | 2015-07-15 | 安徽问天量子科技股份有限公司 | Handheld device encryption method and system based on quantum cryptography |
| CN104918243A (en) * | 2015-06-15 | 2015-09-16 | 上海交通大学 | Mobile terminal secrecy system and method based on quantum true random number |
| CN206865470U (en) * | 2017-04-17 | 2018-01-09 | 江苏亨通问天量子信息研究院有限公司 | Secrecy intercom system based on quantum cryptography |
-
2017
- 2017-04-17 CN CN201710247302.2A patent/CN107046464A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051444A (en) * | 2012-12-31 | 2013-04-17 | 安徽问天量子科技股份有限公司 | Quantum security digital terminal applied to PSTN (Public Switched Telephone Network) |
| CN204392484U (en) * | 2015-02-06 | 2015-06-10 | 长春大学 | A kind of quantum key encryption wireless intercom device |
| CN104780040A (en) * | 2015-04-06 | 2015-07-15 | 安徽问天量子科技股份有限公司 | Handheld device encryption method and system based on quantum cryptography |
| CN104918243A (en) * | 2015-06-15 | 2015-09-16 | 上海交通大学 | Mobile terminal secrecy system and method based on quantum true random number |
| CN206865470U (en) * | 2017-04-17 | 2018-01-09 | 江苏亨通问天量子信息研究院有限公司 | Secrecy intercom system based on quantum cryptography |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707350A (en) * | 2017-11-19 | 2018-02-16 | 天津光电安辰信息技术股份有限公司 | A kind of voice communication system based on Cipher Feedback |
| KR102420977B1 (en) * | 2021-12-22 | 2022-07-15 | 한화시스템 주식회사 | Encryption processing unit for inter-operation of radio, encryption unit and intercom, and intercommunication system and method using the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106982419B (en) | Single call end-to-end encryption method and system for broadband cluster system | |
| RU2495532C2 (en) | Method and apparatus for end-to-end encrypted communication | |
| CN1925681A (en) | End-to-end encrypting method and system based on mobile communication network | |
| CN101420303A (en) | Communication method for audio data and apparatus thereof | |
| CN101951601A (en) | Method and system for encrypting voice calls in mobile communication network, terminal and network side | |
| CN115348579B (en) | Voice encryption method applied to wireless earphone and encryption type wireless earphone | |
| US10601586B2 (en) | Method and apparatus for key management of end encrypted transmission | |
| CN206865447U (en) | Secrecy intercom based on quantum cryptography | |
| CN106911718A (en) | Secrecy intercom system and method based on quantum key service station | |
| CN101568110A (en) | Wireless data transmission method and system | |
| CN103096304A (en) | Method for encryption and decryption of secure voice tendencies of internet protocol (IP) network communication terminal | |
| CN103167494A (en) | Information sending method and information sending system | |
| CN105049201A (en) | Mobile equipment secret communication system based on quantum cryptography and mobile equipment secret communication method based on quantum cryptography | |
| CN107046464A (en) | Secrecy intercom system and method based on quantum cryptography | |
| CN206865470U (en) | Secrecy intercom system based on quantum cryptography | |
| CN106961330A (en) | Quantum key service station | |
| CN203537408U (en) | End-to-end voice communication privacy device with assignable secret key | |
| JP2002341761A (en) | Method and device for security of communication information in cdma radio communication system | |
| CN206932228U (en) | Quantum key service station | |
| US9467428B2 (en) | Information security attachment device for voice communication and information security method for voice communication using the same | |
| CN106961287A (en) | Secrecy intercom based on quantum cryptography | |
| CN206272812U (en) | A kind of bluetooth earphone and mobile terminal interactive system | |
| CN101951554A (en) | Method and system for realizing pre-access of encrypted conference call | |
| CN201188646Y (en) | Telephone secrecy apparatus | |
| CN104581711A (en) | Mobile terminal with communication encryption function as well as communication encryption method thereof |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170815 |