CN110011813A - A kind of data hiding transmission method based on block chain - Google Patents
A kind of data hiding transmission method based on block chain Download PDFInfo
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- CN110011813A CN110011813A CN201910292009.7A CN201910292009A CN110011813A CN 110011813 A CN110011813 A CN 110011813A CN 201910292009 A CN201910292009 A CN 201910292009A CN 110011813 A CN110011813 A CN 110011813A
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- privately owned
- block chain
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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
- H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
-
- 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
- H04L9/3247—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 digital signatures
-
- 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
- H04L9/3247—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 digital signatures
- H04L9/3252—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 digital signatures using DSA or related signature schemes, e.g. elliptic based signatures, ElGamal or Schnorr schemes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Storage Device Security (AREA)
- Information Transfer Between Computers (AREA)
Abstract
For the feature of the data hiding difference in block chain data transmission procedure, the invention proposes a kind of methods based on the transmission of block chain data hiding: by establishing a privately owned chain, the node for entering privately owned chain is screened with intelligent contract, guarantees that the node for being only allowed to enter privately owned chain can keep accounts to this transmission；Utilize the address of annular signature technology and stealthy addressing technique protection sender and recipient；Using digital digest is generated before and after hash algorithm twice, comparison data transmits front and back digital digest generated, verificating data safety.Transmission method proposed by the present invention has also carried out concealment processing to data transmission, to keep data transmission procedure safe and reliable while protecting data transmission security.
Description
Technical field:
The present invention relates to data hiding transmission field, in particular to a kind of data hiding transmission method based on block chain.
Background technique:
Block chain is the novel of the computer technologies such as Distributed Storage, point-to-point transmission, common recognition mechanism, Encryption Algorithm
Application model.So-called common recognition mechanism is that the mathematics calculation established between different nodes and trust, obtain equity is realized in block catenary system
Method.The essential characteristic of block chain has decentralization, opening, autonomy, information that can not distort, anonymity etc..
Currently, with the continuous development of society, based on the feature of block chain, the application and research and development of block chain increasingly by
Concern.In big data era, data all have a very important value for personal or enterprise, the safety of data transmission and
Concealment is concerned.But while guaranteeing data transmission security, data transmission concealment not enough, this defect pair
Data transmission procedure has the risk being destroyed.
Summary of the invention:
For this defect of concealment problem in the data transmission procedure based on block chain, the invention proposes one kind to be based on
The method of block chain data hiding transmission.Guarantee data security transmit while, can guarantee the concealment of data content.
Specifically, the invention proposes embodiments in detail below:
A kind of method based on the transmission of block chain data hiding is provided the present invention provides a kind of, concrete operation step is such as
Under:
(1) after sender gets the data hiding transmission request of recipient, a privately owned chain is established.In the privately owned chain
Node include sender and recipient and some trusted nodes；
(2) address of sender is protected by annular signature technology；
(3) address of recipient is protected by stealthy addressing technique, sender creates address and transmits encrypted number
Abstract and data；
(4) recipient is decrypted by the private key that stealthy addressing technique is calculated, and obtains the digital digest and institute
Data are stated, new digital digest is generated by hash algorithm to the data received, judge the new digital digest generated
It is whether identical as the digital digest that receives.
It should be understood that trusted node enters the control mode of the privately owned chain in the privately owned chain are as follows: pass through
The node that intelligent contract is trusted jointly into screening sender and recipient.
It should be further noted that: the node diagnostic for including in the privately owned chain are as follows: only sender and recipient have
The effect of book keeping operation, other nodes are non-accounting nodes, are the synchronous relationship of data, non-book keeping operation between other nodes and accounting nodes
Data portion in node as a kind of legal basis as it can be seen that exist.
It should be noted that: ring signatures technology the following steps are included:
Step 1: key generates: generating a key pair for member each in ring, member is in the privately owned chain in ring
All nodes；
Step 2: signature: sender is the number with the private key of oneself and the public key of any n ring members (including oneself)
Word abstract and the data m generate signature；
Step 3: signature verification: whether recipient signs according to ring signatures, the digital digest and the data m verifying
It is signed by member in ring.
Stealthy addressing technique, comprising the following steps:
Step 1: it is the basic point of elliptic curve group that recipient, which gathers around there are two key pair (s, S) and (b, B), G,；
Step 2: sender generates a temporary key to (r, R), and wherein R=rG is transmitted with transaction；
Step 3: sender and recipient all use ECDH calculate shared key C:C=H (RSG)=H (RS)=
H (SR), wherein H () is a kind of keyed Hash function, and sender uses temporary address of the cG+B as recipient；
Step 4: recipient calculates identical destination address with two different modes, i.e. cG+B=(c+b) G, such as
Fruit has matching, then is decrypted using corresponding private key c+b.
Preferably, further comprise: sender calculates shared key C to the digital digest with by ECDH before being transmitted
With the data encryption.
In conclusion advantage of the present invention is as follows:
(1) a new privately owned chain is established, the node for entering privately owned chain is screened by intelligent contract, is this time passed
Defeated process is completely hidden to no artis；
(2) privately owned chain node is limited, consequently facilitating control, safer, data transmission bauds are faster；
(3) annular signature technology is combined with stealthy addressing technique, is protected the address of sender and recipient, is made this
The concealment of transmission is higher；
(4) digital digest that comparison data transmission front and back is generated by hash algorithm, demonstrates the safety of data, it is ensured that
This time trust degree of transmission.
Detailed description of the invention
It in order to illustrate the embodiments of the present invention more clearly or the technical solution of the prior art, below will be to embodiment or existing
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is only this hair
Bright some embodiments.
The step of Fig. 1 is a kind of data hiding transmission method based on block chain of proposition of the embodiment of the present invention is schemed；
Fig. 2 is the flow diagram that middle ring of embodiment of the present invention signature technology and stealthy addressing technique combine；
Fig. 3 is a kind of flow diagram for data hiding transmission method based on block chain that the embodiment of the present invention proposes.
Specific embodiment:
The present invention is described in detail with specific embodiment with reference to the accompanying drawing.
Embodiment 1
The embodiment of the present invention 1 discloses a kind of data hiding transmission method based on block chain, in conjunction with shown in Fig. 1 and Fig. 3,
The following steps are included:
Step 101: after sender gets the data hiding transmission request of recipient, establishing a privately owned chain, the private
Having the node in chain includes sender and recipient and some trusted nodes；
It should be understood that trusted node enters the control mode of the privately owned chain in the privately owned chain are as follows: pass through
The node that intelligent contract is trusted jointly into screening sender and recipient.
Need further exist for explanation: the node diagnostic for including in the privately owned chain are as follows: only sender and recipient have
The effect of book keeping operation, other nodes are non-accounting nodes, are the synchronous relationship of data, non-book keeping operation between other nodes and accounting nodes
Data portion in node as a kind of legal basis as it can be seen that exist.
Step 102: the address of sender is protected by annular signature technology；
It should be understood that ring signatures technology the following steps are included:
Step 1: key generates: generating a key pair for member each in ring, member is in the privately owned chain in ring
All nodes；
Step 2: signature: sender is the number with the private key of oneself and the public key of any n ring members (including oneself)
Word abstract and the data m generate signature.The specific steps of signature are as follows:
(1) the key K=H (m) of symmetric encipherment algorithm is generated, wherein H is a kind of hash algorithm；
(2) a V value is randomly selected；
(3) n random value x is choseniAs the input of trap-door one-way function in signature ring, y is calculatedi=gi(xi)；
(4) C is enabledK,V(y1,y2,...,ynThe trapdoor function of)=V, signer (sender) input xs, calculate ys=gs
(xs), the private key to be drawn oneself up due to signer (sender), it is possible to acquire
(5) ring signatures of the composition about m: (P1,P2,...,Pn；V；x1,x2,...xn), it can not know through this signature
That really possess private key is Ps。
Step 3: signature verification: whether recipient signs according to ring signatures and the digital digest and data m verifying
It is signed by member in ring.The specific steps of signature verification are as follows:
(1) pass through public key (P1,P2,...,Pn) and yi=gi(xi) correspondingly to (x1,x2,...xn) encryption obtain (y1,
y2,...,yn)；
(2) key of symmetric encipherment algorithm, i.e. K=H (m) are calculated；
(3) equation C is verifiedK,V(y1,y2,...,ynWhether)=V is true.
Step 103: the address of recipient is protected by stealthy addressing technique, sender creates address and transmits encrypted
Digital digest and data；
It should be understood that stealthy addressing technique, comprising the following steps:
Step 1: it is the basic point of elliptic curve group that recipient, which gathers around there are two key pair (s, S) and (b, B), G,；
Step 2: sender generates a temporary key to (r, R), and wherein R=rG is transmitted with transaction；
Step 3: sender and recipient all use ECDH calculate shared key C:C=H (RSG)=H (RS)=
H (SR), wherein H () is a kind of keyed Hash function, and sender uses temporary address of the cG+B as recipient；
Step 4: recipient calculates identical destination address with two different modes, i.e. cG+B=(c+b) G, such as
Fruit has matching, then is decrypted using corresponding private key c+b.
It should be further noted that: sender before being transmitted plucks the number with by ECDH calculating shared key C
It will be with the data encryption.
Step 104: recipient is decrypted by the private key that stealthy addressing technique is calculated, and obtains the digital digest
With the data, new digital digest is generated to the data received by hash algorithm, judges the new number generated
Whether whether abstract identical as the digital digest that receives；If they are the same, then the data received be it is safe, passing
It is not destroyed or distorts during defeated, concealment is good.If it is different, then retransmitting request.
It should be added that: step 102 and step 103 are not that complete front and back is suitable comprising multiple substep steps
Order relation, but being used in combination for annular signature technology and stealth addressing technique, are a kind of opposite ordinal relations.Such as Fig. 2 institute
The step of show: annular signature technology is mutually embedded in stealthy addressing technique, is used in combination, the last verifying of the two is in sender
After carrying out transmission operation.
Foregoing provide a kind of data hiding transmission methods based on block chain, by establishing a privately owned chain, with intelligence
Contract screening enters the node of privately owned chain, guarantees that the node for being only allowed to enter privately owned chain can remember this transmission
Account, and then achieve the purpose that transmission process is hidden.Utilize annular signature technology and stealthy addressing technique protection sender and reception
The address of side；Using digital digest is generated before and after hash algorithm twice, comparison data transmission front and back digital digest generated is tested
Demonstrate,prove Information Security.Transmission method proposed by the present invention also carries out data transmission while protecting data transmission security
Concealment processing, to keep data transmission procedure safe and reliable.
Disclosed above is only a specific implementation scene of the invention, and still, the present invention is not limited to this, Ren Heben
What the technical staff in field can think variation should all fall into protection scope of the present invention.
Claims (6)
1. a kind of data hiding transmission method based on block chain characterized by comprising
(1) after sender gets the data hiding transmission request of recipient, a privately owned chain, the section in the privately owned chain are established
Point includes sender and recipient and some trusted nodes；
(2) address of sender is protected by annular signature technology；
(3) address of recipient is protected by stealthy addressing technique, sender creates address and transmits encrypted digital digest
And data；
(4) recipient is decrypted by the private key that stealthy addressing technique is calculated, and obtains the digital digest and the number
According to, new digital digest is generated by hash algorithm to the data received, judge generate new digital digest and connect
Whether the digital digest received is identical.
2. the data hiding transmission method according to claim 1 based on block chain, which is characterized in that " in privately owned chain
Including some trusted nodes " include:
Node is screened by intelligent contract, the node that only sender and recipient trust jointly can just obtain permitting into
Enter the privately owned chain.
3. the data hiding transmission method according to claim 1 based on block chain, it is characterised in that:
The node for including in the privately owned chain, only sender and recipient play the role of book keeping operation, other nodes are non-book keeping operation section
Point is the synchronous relationship of data between other nodes and accounting nodes, and the data portion in non-accounting nodes is as it can be seen that as one kind
Legal basis exists.
4. the data hiding transmission method according to claim 1 based on block chain, which is characterized in that ring signatures technology packet
Include following steps:
Step 1: key generates: generating a key pair for member each in ring, member is all in the privately owned chain in ring
Node；
Step 2: signature: sender is plucked with the private key of oneself and the public key of any n ring members (including oneself) for the number
It to generate and sign with the data m；
Step 3: signature verification: whether recipient is ring according to ring signatures, the digital digest and the data m verifying signature
Middle member is signed.
5. the data hiding transmission method according to claim 1 based on block chain, which is characterized in that stealthy address skill
Art, comprising the following steps:
Step 1: it is the basic point of elliptic curve group that recipient, which gathers around there are two key pair (s, S) and (b, B), G,；
Step 2: sender generates a temporary key to (r, R), and wherein R=rG is transmitted with transaction；
Step 3: sender and recipient use ECDH to calculate shared key C:C=H (RSG)=H (RS)=H
(SR), wherein H () is a kind of keyed Hash function, and sender uses temporary address of the cG+B as recipient；
Step 4: recipient calculates identical destination address with two different modes, i.e. cG+B=(c+b) G, if there is
Matching, then be decrypted using corresponding private key c+b.
6. according to claim 1, based on the data hiding transmission method of block chain described in 5, which is characterized in that " transmission encryption
The digital digest and the data afterwards " includes: that sender calculates shared key C to the number with by ECDH before being transmitted
Word abstract and the data encryption.
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Cited By (10)
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| CN111125755A (en) * | 2019-12-12 | 2020-05-08 | 陕西医链区块链集团有限公司 | Medical field data processing system and method based on block chain architecture technology |
| CN111147249A (en) * | 2019-12-16 | 2020-05-12 | 中国银联股份有限公司 | Data processing method, device, equipment and medium |
| CN112383526A (en) * | 2020-11-06 | 2021-02-19 | 扬州大学 | Covert communication method under block chain realized by intelligent contract |
| CN113111386A (en) * | 2021-04-30 | 2021-07-13 | 永旗(北京)科技有限公司 | Privacy protection method for block chain transaction data |
| CN113132411A (en) * | 2021-04-30 | 2021-07-16 | 永旗(北京)科技有限公司 | Data hidden transmission method based on block chain |
| CN113507467A (en) * | 2021-07-07 | 2021-10-15 | 浙江大学 | Block chain-based hidden information transmission system and method |
| CN113691512A (en) * | 2021-08-13 | 2021-11-23 | 北京理工大学 | Data hiding transmission system and method combining block chain and onion network |
| CN114726509A (en) * | 2022-02-28 | 2022-07-08 | 北京理工大学 | Data hidden transmission method based on multi-block chain platform |
| CN114726508A (en) * | 2022-02-28 | 2022-07-08 | 北京理工大学 | Special transaction screening method for block chain group concealed transmission |
| CN116471053A (en) * | 2023-03-24 | 2023-07-21 | 河北新冀网络传媒有限公司 | Data security encryption transmission method and system based on block chain |
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| CN111125755A (en) * | 2019-12-12 | 2020-05-08 | 陕西医链区块链集团有限公司 | Medical field data processing system and method based on block chain architecture technology |
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| CN112383526B (en) * | 2020-11-06 | 2022-08-12 | 扬州大学 | Covert communication method under block chain realized by intelligent contract |
| CN112383526A (en) * | 2020-11-06 | 2021-02-19 | 扬州大学 | Covert communication method under block chain realized by intelligent contract |
| CN113111386A (en) * | 2021-04-30 | 2021-07-13 | 永旗(北京)科技有限公司 | Privacy protection method for block chain transaction data |
| CN113132411A (en) * | 2021-04-30 | 2021-07-16 | 永旗(北京)科技有限公司 | Data hidden transmission method based on block chain |
| CN113507467A (en) * | 2021-07-07 | 2021-10-15 | 浙江大学 | Block chain-based hidden information transmission system and method |
| CN113691512A (en) * | 2021-08-13 | 2021-11-23 | 北京理工大学 | Data hiding transmission system and method combining block chain and onion network |
| CN114726509A (en) * | 2022-02-28 | 2022-07-08 | 北京理工大学 | Data hidden transmission method based on multi-block chain platform |
| CN114726508A (en) * | 2022-02-28 | 2022-07-08 | 北京理工大学 | Special transaction screening method for block chain group concealed transmission |
| CN114726509B (en) * | 2022-02-28 | 2024-02-23 | 北京理工大学 | Data hidden transmission method based on multi-block chain platform |
| CN114726508B (en) * | 2022-02-28 | 2024-02-23 | 北京理工大学 | Special transaction screening method for hidden transmission of block chain group |
| CN116471053A (en) * | 2023-03-24 | 2023-07-21 | 河北新冀网络传媒有限公司 | Data security encryption transmission method and system based on block chain |
| CN116471053B (en) * | 2023-03-24 | 2023-10-20 | 河北新冀网络传媒有限公司 | Data security encryption transmission method and system based on block chain |
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