CN111429233A - Leasing system and method based on block chain - Google Patents
Leasing system and method based on block chain Download PDFInfo
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- CN111429233A CN111429233A CN202010294225.8A CN202010294225A CN111429233A CN 111429233 A CN111429233 A CN 111429233A CN 202010294225 A CN202010294225 A CN 202010294225A CN 111429233 A CN111429233 A CN 111429233A
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Abstract
The invention relates to the field of block chain leasing management and discloses a leasing system and a method based on a block chain, wherein the system comprises a leasing contract acquisition unit and a first consensus verification recording unit; the leasing contract acquisition unit is used for acquiring leasing contracts of a lessee and a lessee based on a target leasing object through the wireless communication module by the block chain leasing platform node; the first consensus verification recording unit is used for sending a first certificate deposit transaction encrypted by an encryption algorithm to the block chain through the wireless communication module by the block chain leasing platform node, so that the first certificate deposit transaction is recorded in the block chain for distributed storage after being verified by the consensus of the block chain leasing platform node; the first credentialing transaction comprises a digital signature and credentialing information of the rental contract; the encryption algorithm is DES, 3DES, DESX, Blowfish, IDEA, RC4, RC5, RC6, AES or HMAC-SHA 1. The invention can improve the safety and reliability of data transmission and storage.
Description
Technical Field
The invention relates to the field of block chain leasing management, in particular to a leasing system and method based on a block chain.
Background
At present, in an online leasing market (such as a house short-term leasing market) based on the internet, because mutual trust is difficult to achieve by both a leasing party and a leasing party, the leasing party needs to pay a lease money, pay a deposit or make a fixed amount in advance or adopt other wind control measures, so that the conversion rate of a leasing platform is low; and the service of renting before paying is easy to cause bad account problem. At present, a block chain-based leasing method is adopted, a block chain network of a lessee client, a lessor client and leasing platform node equipment is adopted, and due to the adoption of a block chain-based tamper-proof mechanism, a certificate can be stored for the leasing relation between the lessee and the lessor. However, it does not adopt an encryption mechanism, so that the transmission and storage of data are not safe and the reliability is not high.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a leasing system and method based on a block chain, which can improve the security and reliability of data transmission and storage, aiming at the above-mentioned defects of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a block chain based leasing system, comprising:
a rental contract acquisition unit: the block chain leasing platform node acquires leasing contracts of a lessee and a lessee based on a target leasing object through a wireless communication module;
the first authentication receiving and recording unit is used for sending a first authentication transaction encrypted by an encryption algorithm to a block chain through the wireless communication module so that the first authentication transaction is received and recorded in the block chain for distributed storage after being authenticated and verified by the block chain leasing platform node, wherein the first authentication transaction comprises a digital signature and authentication information of the leasing contract, and the encryption algorithm is DES, 3 DESX, Blowfish, IDEA, RC4, RC5, RC6, AES, RSA, ECC, Diffie-Hellman, El Gamal, DSA, MD2, MD4, MD5, HAVA L, SHA-1, HMAC-MD5 or HMAC-SHA 1.
In the leasing system based on the block chain, the wireless communication module is any one or a combination of any more of a 5G communication module, a 4G communication module, a Bluetooth module, a WiFi module, a GSM module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module and an L oRa module.
In the leasing system based on the block chain, the first certificate storing transaction also comprises the certificate storing information of the encrypted identity authentication information and the encrypted certificate storing information of the target leasing object authentication information.
In the leasing system based on the block chain, the invention also includes:
rent payment information unit: the block chain leasing platform node acquires rent payment information of a leasing party by a leasing direction through a wireless communication module;
the second consensus verification listing unit: the blockchain leasing platform node is used for sending a second certificate storing transaction encrypted by an encryption algorithm to the blockchain, so that the second certificate storing transaction is identified and verified by the blockchain leasing platform node and then recorded in the blockchain for distributed storage; the second deposit transaction includes a digital signature of the rental payment information and deposit information.
The invention also relates to a leasing method based on the block chain, which is applied to the leasing system based on the block chain and comprises the following steps:
A) the block chain leasing platform node acquires leasing contracts of a lessee and a lessee based on a target leasing object through a wireless communication module;
B) the block chain leasing platform node sends a first certificate-storing transaction encrypted through an encryption algorithm to a block chain through the wireless communication module so that the first certificate-storing transaction is identified and verified by the block chain leasing platform node and then recorded in the block chain for distributed storage, wherein the first certificate-storing transaction comprises a digital signature and certificate-storing information of the leasing contract, and the encryption algorithm comprises DES, 3 DESS, DESX, Blowfish, IDEA, RC4, RC5, RC6, AES, RSA, ECC, Diffie-Hellman, El Gamal, DSA, MD2, MD4, MD5, HAVA L, SHA-1, HMAC-MD5 or HMAC-SHA 1.
In the leasing method based on the block chain, the wireless communication module is any one or combination of any more of a 5G communication module, a 4G communication module, a Bluetooth module, a WiFi module, a GSM module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module and an L oRa module.
In the leasing method based on the block chain, the first certificate storing transaction also comprises the certificate storing information of the encrypted identity authentication information and the encrypted certificate storing information of the target leasing object authentication information.
The leasing method based on the block chain further comprises the following steps:
C) the block chain leasing platform node acquires rent payment information of a leasing party by a leasing direction through a wireless communication module;
D) the block chain leasing platform node sends a second certificate storing transaction encrypted by an encryption algorithm to the block chain, so that the second certificate storing transaction is identified and verified by the block chain leasing platform node and then recorded in the block chain for distributed storage; the second deposit transaction includes a digital signature of the rental payment information and deposit information.
The leasing system and the leasing method based on the block chain have the advantages that the leasing contract acquisition unit and the first common identification verification inclusion unit are arranged, the leasing contract acquisition unit is used for acquiring a leasing contract of a lessee and a lessee based on a target leasing object through a wireless communication module by a block chain leasing platform node, the first common identification verification inclusion unit is used for sending a first certificate transaction encrypted by an encryption algorithm to a block chain through the wireless communication module by the block chain leasing platform node so that the first certificate transaction is included in the block chain for distributed storage after being commonly identified and verified by the block chain leasing platform node, the first certificate transaction comprises a digital signature and certificate storage information of the leasing contract, the encryption algorithm is DES, 3DES, DEWfish, Blowfish, IDEA, RC4, RC5, RC 2, RSA, SXX, ECC, Diffie-Hellman, El Gamal, DSA, RSA, ASA 675, 48363, SHAC 671, HMAC-HSAC 25, HMAC-AC-8678 and HMAC encryption algorithm are included in the first certificate transaction and the first certificate transaction can be stored in a encrypted and the first certificate transaction is transmitted safely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a system according to an embodiment of the block chain-based leasing system and method of the present invention;
fig. 2 is a flow chart of the method in the embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the leasing system and method based on the block chain, the structural diagram of the leasing system based on the block chain is shown in fig. 1. In fig. 1, the block chain-based rental system includes a rental contract acquisition unit 1 and a first consensus verification listing 2; the leasing contract obtaining unit 1 is used for obtaining leasing contracts of a lessee and a lessee based on a target leasing object through a wireless communication module by a block chain leasing platform node. The target rental object may be a house, equipment, or service, such as an express service. The leasing contract is data which can embody the leasing relationship between the lessee and the lessee based on the target leasing object, and can be an electronic contract or paper. And e, electronic versions of the quality contracts and the like, wherein the leasing contracts are uploaded to the block chain leasing platform nodes by the lessor through the lessor client, or the lessee is uploaded to the block chain leasing platform nodes through the lessor client.
In the leasing system based on the block chain, the wireless communication module is any one or combination of any several of a 5G communication module, a 4G communication module, a Bluetooth module, a WiFi module, a GSM module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module and a L oRa module, through setting multiple wireless communication modes, the flexibility of the wireless communication modes can be improved, and the requirements of different users and different occasions can be met.
The first consensus verification inclusion list 2 is used for sending a first certificate transaction encrypted through an encryption algorithm to the block chain through the wireless communication module, so that the first certificate transaction is included in the block chain for distributed storage after being verified by the block chain leasing platform nodes in a consensus mode, the first certificate transaction comprises a digital signature and certificate information of a leasing contract, and the encryption algorithm is DES, 3DES, DESX, Blowfish, IDEA, RC4, RC5, RC6, AES, RSA, ECC, Diffie-Hellman, ElGamal, DSA, MD2, MD4, MD5, HAVA L, SHA-1, HMAC-MD5 or HMAC-SHA 1.
The DES, 3DES, DESX, Blowfish, IDEA, RC4, RC5, RC6 and AES are symmetric encryption algorithms which have the advantages of high encryption and decryption speed and difficulty in cracking when long keys are used, assuming that two users need to encrypt and then exchange data by using a symmetric encryption method, the users need at least 2 keys and exchange and use the keys, if n users exist in an enterprise, the whole enterprise needs n × (n-1) keys, and the security of the symmetric encryption algorithm depends on the storage condition of the encryption keys.
RSA, ECC, Diffie-Hellman, El Gamal and DSA are asymmetric encryption algorithms, referring to encryption and decryption algorithms that use different keys, also known as public-private key encryption. Assuming that two users need to encrypt and exchange data, the two users exchange public keys, when in use, one party is encrypted by the public key of the other party, and the other party can be decrypted by the private key of the other party. If there are n users in the enterprise, the enterprise needs to generate n pairs of keys and distribute n public keys. Since the public key can be made public, the user only needs to keep the own private key, so the distribution of the encryption key becomes very simple. Meanwhile, because the private key of each user is unique, other users can verify whether the source of the information is real or not through the public key of the information sender, and the sender can be ensured not to deny that the information is sent once. Asymmetric encryption has the disadvantage that the encryption and decryption speed is much slower than that of symmetric encryption, and in some extreme cases can be even up to 1000 times slower than that of asymmetric encryption.
MD2, MD4, MD5, HAVA L, SHA-1, HMAC-MD5 and HMAC-SHA1 are Hash algorithms, and the Hash algorithm is particularly characterized in that it is a one-way algorithm, and a user can generate a unique Hash value with a specific length for target information through the Hash algorithm, but cannot obtain the target information again through the Hash value.
The performance of an encryption algorithm can be generally measured in terms of the complexity of the algorithm itself, the length of the key (the longer the key is, the more secure the key is), the encryption and decryption speed, and the like. The above algorithms are still used in the current encryption system products except that the length of the DES key is insufficient and the speed of the MD2 is slow and is gradually eliminated.
Preferably, the first deposit transaction further includes the deposit information of the encrypted identification authentication information and the deposit information of the encrypted target rental object authentication information. Therefore, a tamper-proof mechanism based on the block chain provides a deposit certificate for the identity authentication information, and further provides evidence for the possibly occurring identity authentication disputes. The first certificate storing transaction is encrypted through an encryption algorithm and comprises a digital signature.
In this embodiment, the leasing system based on the block chain further comprises a rent payment information unit 3 and a second consensus verification inclusion unit 4, wherein the rent payment information unit 3 is used for the block chain leasing platform node to acquire rent payment information of a leasing party by a leasing party through a wireless communication module, the second consensus verification inclusion unit 4 is used for the block chain leasing platform node to send a second deposit transaction encrypted through an encryption algorithm to the block chain, so that the second deposit transaction is verified by the block chain leasing platform node in a consensus mode and then is included in the block chain for distributed storage, and the second deposit transaction comprises a digital signature of the rent payment information and deposit information, wherein the encryption algorithm can be any one of DES, 3 DESX, DEWfii, Blowfii, IDEA, RC4, RC5, RC6, AES MD, RSA, ECC, Diffie-Hellman, ElGamal, DSA, MD, RSA 4, 5, HAVA 63, SHA 671, SHAC-HMAC 5 and HMAC 8678-HMAC 8678.
The embodiment also relates to a leasing method based on the block chain, which is applied to the leasing system based on the block chain in the embodiment, and a flowchart of the leasing method based on the block chain is shown in fig. 2. In fig. 2, the block chain-based leasing method includes the following steps:
step S01, the block chain leasing platform node acquires a leasing contract of the lessee and the lessee based on the target leasing object through the wireless communication module: in the step, the block chain leasing platform node acquires a leasing contract of the lessee and the lessee based on the target leasing object through the wireless communication module. The target rental object can be a house, equipment or service, such as an express service. The leasing contract is data which can embody the leasing relationship between the lessee and the lessee based on the target leasing object, and can be an electronic contract or paper. And e, electronic versions of the quality contracts and the like, wherein the leasing contracts are uploaded to the block chain leasing platform nodes by the lessor through the lessor client, or the lessee is uploaded to the block chain leasing platform nodes through the lessor client.
In the leasing method based on the block chain in the embodiment, the wireless communication module is any one or combination of any several of a 5G communication module, a 4G communication module, a Bluetooth module, a WiFi module, a GSM module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module and a L oRa module.
The method comprises the steps that S02 a block chain leasing platform node sends a first certificate-storing transaction encrypted through an encryption algorithm to a block chain through a wireless communication module, so that the first certificate-storing transaction is identified and verified by the block chain leasing platform node and then is recorded in the block chain for distributed storage, in the step, the block chain leasing platform node sends the first certificate-storing transaction encrypted through the encryption algorithm to the block chain through the wireless communication module, so that the first certificate-storing transaction is identified and verified by the block chain leasing platform node and then is recorded in the block chain for distributed storage, the first certificate-storing transaction comprises a digital signature and certificate-storing information of a leasing contract, the encryption algorithm is DES, 3 DESX, desX, Blowfish, IDEA, RC4, RC5, RC6, AES, RSA, ECC, Diffie-Hellman, ElGamal, DSA, MD, 4, 5, HAVA L, SHA-1, HMAC-5 or HMAC-MD-Hellman, the reliability of the encrypted data-storing transaction is improved based on the encryption algorithm, and the first certificate-storing transaction and the security signature-storing transaction method can be used for improving the reliability of the encrypted data-storing transaction.
In this embodiment, the leasing method based on the block chain further includes the following steps:
step S03, the blockchain leasing platform node acquires, through the wireless communication module, lease payment information of a leasing party to a leasing party: in the step, the block chain leasing platform node acquires the rent payment information of the leasing party by the leasing party through the wireless communication module.
And step S04, the blockchain leasing platform node sends the second certificate transaction encrypted by the encryption algorithm to the blockchain, so that the second certificate transaction is identified and verified by the blockchain leasing platform node and then is recorded in the blockchain for distributed storage, wherein in the step, the blockchain leasing platform node sends the second certificate transaction encrypted by the encryption algorithm to the blockchain, so that the second certificate transaction is identified and verified by the blockchain leasing platform node and then is recorded in the blockchain for distributed storage, the second certificate transaction comprises a digital signature of rent payment information and certificate information, and the encryption algorithm can be any one of DES, 3DES, DESX, Blowfish, IDEA, RC4, RC5, RC6, AES, RSA, ECC, Diffie-Hellman, El GaGamamal, DSA, MD2, 4, 5, HAVA L, HMA-1, HMAC-5 and HMAC-1.
In summary, in the embodiment, when the distributed storage is performed, the first certificate storing transaction is encrypted through the encryption algorithm, and the first certificate storing transaction includes the digital signature.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A block chain based rental system, comprising:
a rental contract acquisition unit: the block chain leasing platform node acquires leasing contracts of a lessee and a lessee based on a target leasing object through a wireless communication module;
the first authentication receiving and recording unit is used for sending a first authentication transaction encrypted by an encryption algorithm to a block chain through the wireless communication module so that the first authentication transaction is received and recorded in the block chain for distributed storage after being authenticated and verified by the block chain leasing platform node, wherein the first authentication transaction comprises a digital signature and authentication information of the leasing contract, and the encryption algorithm is DES, 3 DESX, Blowfish, IDEA, RC4, RC5, RC6, AES, RSA, ECC, Diffie-Hellman, El Gamal, DSA, MD2, MD4, MD5, HAVA L, SHA-1, HMAC-MD5 or HMAC-SHA 1.
2. The leasing system based on block chain as claimed in claim 1, wherein the wireless communication module is any one or any combination of 5G communication module, 4G communication module, bluetooth module, WiFi module, GSM module, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module and L oRa module.
3. The blockchain-based rental system of claim 2, wherein the first credentialing transaction further includes credentialing information for the encrypted identity authentication information and credentialing information for the encrypted target rental object authentication information.
4. The blockchain-based rental system of claim 3, further comprising:
rent payment information unit: the block chain leasing platform node acquires rent payment information of a leasing party by a leasing direction through a wireless communication module;
the second consensus verification listing unit: the blockchain leasing platform node is used for sending a second certificate storing transaction encrypted by an encryption algorithm to the blockchain, so that the second certificate storing transaction is identified and verified by the blockchain leasing platform node and then recorded in the blockchain for distributed storage; the second deposit transaction includes a digital signature of the rental payment information and deposit information.
5. A leasing method based on block chain, which is applied to the leasing system based on block chain as claimed in claim 1, and comprises the following steps:
A) the block chain leasing platform node acquires leasing contracts of a lessee and a lessee based on a target leasing object through a wireless communication module;
B) the block chain leasing platform node sends a first certificate-storing transaction encrypted through an encryption algorithm to a block chain through the wireless communication module so that the first certificate-storing transaction is identified and verified by the block chain leasing platform node and then recorded in the block chain for distributed storage, wherein the first certificate-storing transaction comprises a digital signature and certificate-storing information of the leasing contract, and the encryption algorithm comprises DES, 3 DESS, DESX, Blowfish, IDEA, RC4, RC5, RC6, AES, RSA, ECC, Diffie-Hellman, El Gamal, DSA, MD2, MD4, MD5, HAVA L, SHA-1, HMAC-MD5 or HMAC-SHA 1.
6. The method of claim 5, wherein the wireless communication module is any one or a combination of any several of a 5G communication module, a 4G communication module, a Bluetooth module, a WiFi module, a GSM module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module, and an L oRa module.
7. The blockchain-based rental method of claim 6, wherein the first credentialing transaction further includes credentialing information of the encrypted identity authentication information and credentialing information of the encrypted target rental object authentication information.
8. The method for leasing based on a block chain according to claim 7, further comprising the following steps:
C) the block chain leasing platform node acquires rent payment information of a leasing party by a leasing direction through a wireless communication module;
D) the block chain leasing platform node sends a second certificate storing transaction encrypted by an encryption algorithm to the block chain, so that the second certificate storing transaction is identified and verified by the block chain leasing platform node and then recorded in the block chain for distributed storage; the second deposit transaction includes a digital signature of the rental payment information and deposit information.
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| CN202010294225.8A CN111429233A (en) | 2020-04-15 | 2020-04-15 | Leasing system and method based on block chain |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113591104A (en) * | 2021-06-29 | 2021-11-02 | 熵链科技(福建)有限公司 | Method, device and system for protecting data privacy in alliance chain cross-chain |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113591104A (en) * | 2021-06-29 | 2021-11-02 | 熵链科技(福建)有限公司 | Method, device and system for protecting data privacy in alliance chain cross-chain |
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