35results about How to "Realize immutability" patented technology

The invention discloses an online cross-border transfer payment method for users between commercial banks based on a block chain. A traditional cross-border transfer payment technology system betweencommercial banks and an emerging virtual digital encryption currency cross-border transfer payment technology system based on a block chain technology are fused. Certain national legal currencies areused as intermediary currencies. Medium currency is used as a carrier for value conversion between different countries of currency. Value conversion between different countries of currency is realizedby using the smart contract. Compared with the prior art, the method has the advantages that the virtual digital currency is replaced, point-to-point transmission of cross-border payment between commercial banks is realized by the aid of an alliance chain in a block chain technical system on the basis of existing financial supervision of cross-border payment of the commercial banks, and the technical scheme has the technical characteristics of controllability, anonymity and traceability so as to meet financial supervision requirements between the international and the regions.

An implementation method of an electronic contract platform based on SDK SMS and digital signatures. In the absence of a digital certificate, a third-party platform sends a verification code through the SDK SMS gateway to authenticate the identity of the electronic contract party and confirm the conclusion of the contract. The third-party platform performs data packet splicing on the data of the contracting party, and then signs the third-party electronic signature for encapsulation, so as to realize the electronic signature of the electronic contract data when the contracting party does not have a digital certificate. The present invention provides an identity authentication method for the electronic contract signing party without a digital certificate through the SDK short message, and provides safe and effective evidence for the packaged identity authentication information, time stamp and electronic contract data through the signature method of the third-party platform digital certificate Solidification solves the cumbersome process and security concerns of the current electronic contract, and has fast, convenient and effective practical operation value.

The present invention provides a method, system and storage medium for supporting multi-mode identification network addressing and progressive IP. The present invention proposes a new network multi-mode identification generation management and routing addressing system that integrates blockchain. Multi-mode identification dynamic adaptation and interoperability technology to break through all IP-based performance and security bottlenecks in the existing network; the use of distributed blockchain consensus algorithm to achieve the original desire of Internet co-management and co-governance. All network resources of the network will be locked on the blockchain to ensure that network resources are authentic and not tampered with; high-efficiency, low-overhead distributed storage technology is used to realize the security and non-tampering of multi-mode identification addressing At the same time, the user real-name registration and network login management strategy combined with biometric identity information and the privacy protection signature strategy are introduced to reduce the management cost of the system and improve the privacy and security of access node information.

The present invention relates to a cryptographic technology-based identification method for the Internet of Things, which includes: the service party generates the root key of the identification system and the service party's public key and private key; the user side generates its own public key and private key, and uses its own The name and public key are passed to the service party; the user side generates the item identification and secret key, and passes the user side identification, item identification, item information ciphertext and signature to the service party; the user side generates the item secret key, and the user side identification, item information The identification, item status information ciphertext and signature are passed to the service party; when the user side queries the information of the item, the user side passes the user side identification, item identification and signature to the service party, and the service party performs verification after receiving it. After the verification is passed, the service The party retrieves the item identification record and the item status record corresponding to the item identification, and transmits the user identification, item identification and state information ciphertext and signature to the user party. The invention combines cryptography and item identification confidentially, and will play an important role in the field of the Internet of Things.

The present application relates to a blockchain-based data processing method, device, equipment and storage medium. The method includes: receiving event data generated by a user terminal for business events; generating a first event block of the event data; acquiring a second event block associated with the first event block; The block has a block encryption value; the block encryption value of the second event block is used to generate the block encryption value of the first event block; the block encryption value of the first event block is used, Encrypt the first event block. According to this embodiment, the non-tamperable modification of event data recording business events is realized through blockchain technology, so that the event data recording business events has non-repudiation and legal effect.

The embodiment of the invention discloses an electronic voting method and an electronic voting system. Wherein, the electronic voting method includes, for example: a step of initiating a vote, a step of signing a vote, a step of verifying a vote, and a step of saving a vote. An electronic voting method provided by an embodiment of the present invention realizes the anonymity, non-tamperability and non-repudiation of voting based on blockchain.

The invention discloses a transaction quick confirmation method and device based on a block chain technology, wherein, the method comprises the following steps: step S1, confirming the node identity and electing a consensus committee and a committee leader; S2, submitting the transaction to the committee, so that the committee leader initiates a round of BLS aggregation signatures for the transaction, and broadcasting the total signatures for the transaction on the whole network to quickly confirm the transaction; Step S3, packaging and summarizing the confirmed transactions by the committee leader, forming a current round block by the transaction package, the transaction proof, the previous block hash and the current unspent transaction pool, sending the current round block and the blockhash value to the members of the committee, and operating the consensus within the committee to generate a new block. The method can realize the fast confirmation of the transaction, and effectively improves the practicability and reliability of the transaction, which is simple and easy to realize.