CN106850185A - A kind of method and system for being encrypted communication - Google Patents
A kind of method and system for being encrypted communication Download PDFInfo
- Publication number
- CN106850185A CN106850185A CN201611232691.3A CN201611232691A CN106850185A CN 106850185 A CN106850185 A CN 106850185A CN 201611232691 A CN201611232691 A CN 201611232691A CN 106850185 A CN106850185 A CN 106850185A
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- aes
- quantum key
- encryption
- information
- transmitting terminal
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000004891 communication Methods 0.000 title claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 239000013307 optical fiber Substances 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005610 quantum mechanics Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
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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
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
- H04L9/0631—Substitution permutation network [SPN], i.e. cipher composed of a number of stages or rounds each involving linear and nonlinear transformations, e.g. AES algorithms
-
- 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
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
-
- 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
Abstract
The invention provides a kind of method and system for being encrypted communication.System therein includes：Transmitting terminal, receiving terminal, quantum key distribution device, AES encryption device and AES deciphers；Transmitting terminal and receiving terminal produce random quantum key by quantum key distribution device；The quantum key that transmitting terminal will be obtained is sent to AES encryption device；Quantum key as encryption key is encrypted and obtains encryption information and be transferred to transmitting terminal by AES encryption device using AES methods to the information of required transmission；The transmitting terminal is by encryption information by traffic channel to receiving terminal；The quantum key picked the end encryption information that will be received and obtain is sent to AES deciphers；Quantum key as decruption key is decrypted the information after being decrypted to encryption information and is transferred to receiving terminal by AES deciphers using AES methods.The service efficiency of secure quantum key while ensuring communication safety property, can be effectively improved using the present invention, the load of system is reduced.
Description
Technical field
The application is related to quantum information communication technical field, more particularly to a kind of method and system for being encrypted communication.
Background technology
With flourishing for Internet technology, the importance of communication security is growing day by day.Under numerous occasions, communication is double
Fang Xiwang carries out secure communication in the case of using common signal channel.For example, when user submits account and password to Web bank
When, user wishes that these information are secrecy in transmittance process, i.e., any third party cannot eavesdrop above- mentioned information.When
Before, the encryption method for being used extensively is public key encryption algorithm.Such algorithm is the algorithm complex based on some mathematical problems
To ensure security.However, with the fast development of science and technology, the security of AES of the prior art has received prestige
The side of body.Therefore, the more safe and reliable encryption method of exploitation is needed badly.
Quantum key distribution is the brand-new cipher key distribution scheme based on quantum mechanics characteristic.The method can borrow public
Channel causes to share safe random key between communication two party.The shared random key can be used to the information in communication
It is encrypted, so as to ensure communication security.Because the security of quantum key distribution is the general principle based on physics, and simultaneously
It is not to be not based on any computational complexity, therefore, quantum key delivering method is Information theoretical secure.
Current conventional quantum cryptography scheme is generally all the cryptographic protocol for using one-time pad.Amount in the prior art
In sub- encipherment scheme, random key is produced by quantum key delivering method first, be then again used for random key one time one
Close encipherment scheme is encrypted to information, so as to realize that unconditional security communicates.
The Information theoretical secure of whole encryption system can be realized using the scheme of one-time pad.But, one-time pad plus
Close scheme requirement key length is isometric with length of the plaintext, and key cannot be reused, therefore the consumption of key is very big, close
The load of key dissemination system is also very big, so as to limit quantum key delivering method in video traffic, bank's big data backup etc.
Application in big data business.
The content of the invention
In view of this, the invention provides a kind of method for being encrypted communication, such that it is able in ensuring communication safety property
While, the service efficiency of secure quantum key is effectively improved, reduce the load of system.
What technical scheme was specifically realized in：
A kind of system for being encrypted communication, the system includes：Transmitting terminal, receiving terminal, quantum key distribution device, AES
Encryption equipment and AES deciphers；
Transmitting terminal and receiving terminal are connected by communication channel；
The two ends of the quantum key distribution device are connected with transmitting terminal and receiving terminal respectively；
Transmitting terminal and receiving terminal produce random quantum key by quantum key distribution device, and preserve respectively；
Transmitting terminal is connected with AES encryption device, and the quantum key that will be obtained is sent to AES encryption device；
The AES encryption device, for using quantum key as encryption key, using AES methods to the information of required transmission
It is encrypted and obtains encryption information, and encryption information is transferred to transmitting terminal；
The transmitting terminal is by encryption information by traffic channel to receiving terminal；
The quantum key picked the end encryption information that will be received and obtain is sent to AES deciphers；
The AES deciphers, for using quantum key as decruption key, being solved to encryption information using AES methods
It is close decrypted after information, and by the information transfer after decryption to receiving terminal.
Preferably, the communication channel is optical fiber or free space.
Present invention also offers a kind of method for being encrypted communication, the method includes：
Transmitting terminal and receiving terminal produce random quantum key by quantum key distribution device；
Using AES methods be encrypted quantum key as encryption key to transmitted information by transmitting terminal, and will be added
Information after close is sent to receiving terminal；
Using AES methods be decrypted quantum key as decruption key to the encryption information for being received by receiving terminal.
Preferably, the communication channel is optical fiber or free space.
As seen from the above technical solution, in the inventive solutions, due to transmitting terminal and receiving terminal throughput first
Quantum key distribution device produces random quantum key, then again using resulting quantum key is as encryption key or decrypts close
Key, and the information of required transmission is encrypted or decrypted using AES methods, so as to quantum key delivering method be added with AES
Dense body system is combined, and no longer needs to use the cryptographic protocol of one-time pad.Due to compared with one-time pad encryption method, AES's
The key length that encryption system is consumed far smaller than length of the plaintext；Meanwhile, do not find that adding for the AES can be cracked at present yet
The algorithm (including quantum algorithm) of dense body, therefore the encryption system of the AES is also safe.Therefore, by using the present invention
In method and system, can ensure communication security while, be effectively improved secure quantum key using effect
Rate, greatly reduces the load of system, and quantum key delivering method has been expanded significantly in video traffic, bank's big data backup etc.
Application in big data business.
Brief description of the drawings
Fig. 1 is the structural representation of the system for being encrypted communication in the embodiment of the present invention.
Fig. 2 is the flow chart of the method for being encrypted communication in the embodiment of the present invention.
Specific embodiment
To make technical scheme and advantage become more apparent, below in conjunction with drawings and the specific embodiments, to this
Invention is described in further detail.
Advanced Encryption Standard (AES) encryption method is a kind of block encryption standard, is in symmetric-key encryption method
Kind.
Fig. 1 is the structural representation of the system for being encrypted communication in the embodiment of the present invention.
As shown in figure 1, the system for being encrypted communication in the embodiment of the present invention includes：Transmitting terminal 11, receiving terminal 12, amount
Quantum key distribution device 13, AES encryption device 14 and AES deciphers 15；
Transmitting terminal 11 and receiving terminal 12 are connected by communication channel 16；
The two ends of the quantum key distribution device 13 are connected with transmitting terminal 11 and receiving terminal 12 respectively；
Transmitting terminal 11 and receiving terminal 12 produce random quantum key K by quantum key distribution device 13, and protect respectively
Deposit；
Transmitting terminal 11 is connected with AES encryption device 14, and the quantum key K that will be obtained is sent to AES encryption device 14；
The AES encryption device 14, for using quantum key K as encryption key, using AES methods to the letter of required transmission
Breath is encrypted and obtains encryption information, and encryption information is transferred into transmitting terminal 11；
Encryption information is transferred to receiving terminal 12 by the transmitting terminal 11 by communication channel 16；
The quantum key K for picking the encryption information that will be received of end 12 and obtaining is sent to AES deciphers 15；
The AES deciphers 15, for using quantum key K as decruption key, being carried out to encryption information using AES methods
Information after being decrypted, and by the information transfer after decryption to receiving terminal 12.
By using the above-mentioned system for being encrypted communication, you can be encrypted between transmitting terminal and receiving terminal logical
Letter.
Preferably, in a particular embodiment of the present invention, the communication channel 16 can be optical fiber or free space.
In addition, additionally providing a kind of method for being encrypted communication in the present invention.
Fig. 2 is the flow chart of the method for being encrypted communication in the embodiment of the present invention.
As shown in Fig. 2 the method for being encrypted communication in the embodiment of the present invention includes step as described below：
Step 201, transmitting terminal and receiving terminal produce random quantum key K by quantum key distribution device.
Step 202, transmitting terminal is added quantum key K as encryption key using AES methods to transmitted information
It is close, and the information after encryption is sent to receiving terminal.
Step 203, receiving terminal enters quantum key K as decruption key using AES methods to the encryption information for being received
Row decryption.
By using the above-mentioned system for being encrypted communication, you can be encrypted between transmitting terminal and receiving terminal logical
Letter.
In sum, in the inventive solutions, because transmitting terminal and receiving terminal pass through quantum key distribution first
Device produces random quantum key, then again using resulting quantum key as encryption key or decruption key, and uses
AES methods are encrypted or decrypt to the information of required transmission, so as to by quantum key delivering method and AES encryption system knot
Close, and no longer need to use the cryptographic protocol of one-time pad.Due to compared with one-time pad encryption method, the encryption system of AES
The key length for being consumed far smaller than length of the plaintext；Meanwhile, do not find that the encryption system of the AES can be cracked at present yet
Algorithm (including quantum algorithm), therefore the encryption system of the AES is also safe.Therefore, by using the method in the present invention
And system, the service efficiency of secure quantum key can be effectively improved while the security of communication is ensured, drop significantly
The low load of system, has expanded quantum key delivering method in big data industry such as video traffic, bank's big data backups significantly
Application in business.
In addition, relative to AES encryption and decryption system of the prior art, quantum key is utilized using technical scheme
The quantum key that obtains of distribution is carrying out the advantage of AES encryption and decryption：The key for used during AES encryption and decryption can not stop
The quantum key that ground quantum key distribution is produced refreshes, such that it is able to be effectively prevented from being caused because AES master keys are revealed
Potential safety hazard.
Additionally, the method and system for being encrypted communication in the present invention go for all key lengths for 128,
The AES encryption system of 192 or 256 bits.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (4)
1. a kind of system for being encrypted communication, it is characterised in that the system includes：Transmitting terminal, receiving terminal, quantum key distribution
Device, AES encryption device and AES deciphers；
Transmitting terminal and receiving terminal are connected by communication channel；
The two ends of the quantum key distribution device are connected with transmitting terminal and receiving terminal respectively；
Transmitting terminal and receiving terminal produce random quantum key by quantum key distribution device, and preserve respectively；
Transmitting terminal is connected with AES encryption device, and the quantum key that will be obtained is sent to AES encryption device；
The AES encryption device, for using quantum key as encryption key, being carried out to the information of required transmission using AES methods
Encryption obtains encryption information, and encryption information is transferred into transmitting terminal；
The transmitting terminal is by encryption information by traffic channel to receiving terminal；
The quantum key picked the end encryption information that will be received and obtain is sent to AES deciphers；
The AES deciphers, for using quantum key as decruption key, being decrypted to encryption information using AES methods
Information after to decryption, and by the information transfer after decryption to receiving terminal.
2. system according to claim 1, it is characterised in that：
The communication channel is optical fiber or free space.
3. a kind of method for being encrypted communication, it is characterised in that the method includes：
Transmitting terminal and receiving terminal produce random quantum key by quantum key distribution device；
Using AES methods be encrypted quantum key as encryption key to transmitted information by transmitting terminal, and by after encryption
Information be sent to receiving terminal；
Using AES methods be decrypted quantum key as decruption key to the encryption information for being received by receiving terminal.
4. method according to claim 3, it is characterised in that：
The communication channel is optical fiber or free space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232691.3A CN106850185A (en) | 2016-12-28 | 2016-12-28 | A kind of method and system for being encrypted communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232691.3A CN106850185A (en) | 2016-12-28 | 2016-12-28 | A kind of method and system for being encrypted communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106850185A true CN106850185A (en) | 2017-06-13 |
Family
ID=59114271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611232691.3A Pending CN106850185A (en) | 2016-12-28 | 2016-12-28 | A kind of method and system for being encrypted communication |
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| CN (1) | CN106850185A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108123798A (en) * | 2017-12-06 | 2018-06-05 | 安徽继远软件有限公司 | Longitudinal difference protection cryptographic communication system and control method based on quantum key distribution |
| CN108650090A (en) * | 2018-07-17 | 2018-10-12 | 江苏亨通问天量子信息研究院有限公司 | Quantum secure facsimile machine and quantum secure fasystem |
| CN108964898A (en) * | 2018-06-28 | 2018-12-07 | 安徽继远软件有限公司 | It is a kind of that electricity consumption cryptographic communication system and method are matched based on Quantum Secure Communication |
| CN109640095A (en) * | 2018-12-28 | 2019-04-16 | 中国科学技术大学 | A kind of video encryption system of binding capacity quantum key distribution |
| CN109714162A (en) * | 2019-01-29 | 2019-05-03 | 南京南瑞国盾量子技术有限公司 | A kind of quantum key expansion method and system |
| CN110557591A (en) * | 2018-05-31 | 2019-12-10 | 杭州海康威视数字技术股份有限公司 | Network camera, video encryption transmission system and video encryption method |
| CN112073190A (en) * | 2020-09-01 | 2020-12-11 | 上海循态信息科技有限公司 | Quantum noise password communication method and system for randomly modulating phase and amplitude |
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| US20070130455A1 (en) * | 2005-12-06 | 2007-06-07 | Elliott Brig B | Series encryption in a quantum cryptographic system |
| CN102447558A (en) * | 2011-11-22 | 2012-05-09 | 王勇 | Encryption method using random sequence on-demand and having misleading function |
| CN102868524A (en) * | 2012-09-28 | 2013-01-09 | 电子科技大学 | DPS QKD (differential phase shift quantum key distribution) encryption system suitable for GPON (gigabit passive optical network) system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070130455A1 (en) * | 2005-12-06 | 2007-06-07 | Elliott Brig B | Series encryption in a quantum cryptographic system |
| CN102447558A (en) * | 2011-11-22 | 2012-05-09 | 王勇 | Encryption method using random sequence on-demand and having misleading function |
| CN102868524A (en) * | 2012-09-28 | 2013-01-09 | 电子科技大学 | DPS QKD (differential phase shift quantum key distribution) encryption system suitable for GPON (gigabit passive optical network) system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108123798A (en) * | 2017-12-06 | 2018-06-05 | 安徽继远软件有限公司 | Longitudinal difference protection cryptographic communication system and control method based on quantum key distribution |
| CN110557591A (en) * | 2018-05-31 | 2019-12-10 | 杭州海康威视数字技术股份有限公司 | Network camera, video encryption transmission system and video encryption method |
| CN108964898A (en) * | 2018-06-28 | 2018-12-07 | 安徽继远软件有限公司 | It is a kind of that electricity consumption cryptographic communication system and method are matched based on Quantum Secure Communication |
| CN108650090A (en) * | 2018-07-17 | 2018-10-12 | 江苏亨通问天量子信息研究院有限公司 | Quantum secure facsimile machine and quantum secure fasystem |
| CN108650090B (en) * | 2018-07-17 | 2024-05-03 | 江苏亨通问天量子信息研究院有限公司 | Quantum security fax machine and quantum security fax system |
| CN109640095A (en) * | 2018-12-28 | 2019-04-16 | 中国科学技术大学 | A kind of video encryption system of binding capacity quantum key distribution |
| CN109640095B (en) * | 2018-12-28 | 2020-12-25 | 中国科学技术大学 | Video encryption system combined with quantum key distribution |
| CN109714162A (en) * | 2019-01-29 | 2019-05-03 | 南京南瑞国盾量子技术有限公司 | A kind of quantum key expansion method and system |
| CN112073190A (en) * | 2020-09-01 | 2020-12-11 | 上海循态信息科技有限公司 | Quantum noise password communication method and system for randomly modulating phase and amplitude |
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Application publication date: 20170613 |
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