LKBT: Powerful blockchain technology is fundamental

As the world's first blockchain infrastructure designed specifically for trusted transactions and clearing of data assets (knowledge, algorithms, computing power), powerful blockchain technology is the fundamental guarantee of LKBT.

Consensus Mechanism

Blockchain is a decentralized distributed ledger system that can be used to register and issue digital assets, property rights certificates, points, etc., and to transfer, pay and trade in a peer-to-peer manner. Compared with traditional centralized ledger systems, blockchain systems have the advantages of being completely open, tamper-proof, and preventing multiple payments, and do not rely on any trusted third party.

Due to the high network latency in peer-to-peer networks, the order of transactions observed by each node cannot be completely consistent. Therefore, the blockchain system needs to design a mechanism to reach a consensus on the order of transactions that occurred at about the same time. This algorithm that reaches a consensus on the order of transactions within a time window is called a "consensus mechanism."

LKBT uses the BFT mechanism of the LkbtBFT consensus protocol to enable all validator nodes to reach consensus on the transactions to be executed and their execution order. LkbtBFT completes verification through pre-audited authoritative nodes. Through the preset list of verifiers and voters, block data can be voted and verified in a very short time to reach a consensus on block data. It can reduce the complexity and scope of blockchain transaction verification, improve the information processing capabilities of blockchain, and support the demand for high-throughput processing capabilities. The LkbtBFT consensus protocol can achieve a balance between high transaction processing volume, low latency, and higher energy efficiency.

Safety Mechanism

The core of blockchain's ability to build a secure and reliable storage and transaction network is its security mechanism and cryptographic algorithm. LKBT uses smart contract privacy protection technologies such as scalable hash functions, pluggable public key cryptography, and ring signatures to provide a secure and efficient transaction network.

1. Scalable Hash Function

Hash function is also called hash function. It is a one-way cryptographic system, that is, an irreversible mapping from plaintext to ciphertext. Hash function can map input of any length into output of fixed length, that is, hash value. The mathematical expression of hash function is h=H(m), where H refers to hash function, m refers to plaintext of any length, and h is hash value of fixed length. Hash function can obtain different hash values ​​for different inputs. If the same hash value is obtained for different inputs, it is called hash collision.

The scalable hash function is a hash function that can be adaptively adjusted according to actual application scenarios and performance requirements. LKBT achieves this by formulating strategies to select different hash functions. LKBT uses scalable hash functions for block generation and linking, and will flexibly select hash functions such as SHA, SCRYPT, BLAKE, etc. according to actual specific needs, thereby ensuring the immutability of its on-chain data and improving the security of LKBT.

2. Public key cryptography

The public key system uses different keys for encryption and decryption. Each user saves a pair of keys, namely the public key (PK) and the private key (SK). PK is public information and is used as an encryption key, while SK needs to be saved by the user himself and is used as a decryption key. The encryption algorithm and decryption algorithm are public. Although SK and PK appear in pairs, SK cannot be calculated based on PK. The advantage of the public key system is that it is applicable to the openness requirements of the network. Compared with the symmetric key system, key management is much simpler, especially digital signatures and authentication can be easily implemented.

LKBT uses pluggable public key cryptography technology to ensure the integrity and credibility of transactions. According to user needs, LKBT provides public key cryptography standard methods compatible with different countries or organizations, including but not limited to public key cryptography based on elliptic curves, thereby improving the security and scope of LKBT.

3. Privacy protection technology in smart contracts

Smart contracts run on the blockchain without any third party credit endorsement, so smart contracts are different from traditional contracts in terms of privacy protection. Privacy threats in smart contracts are mainly attacks on identity privacy and transaction privacy by attackers. Currently, the main privacy threats include anonymity privacy threats, access control privacy threats, and on-chain information privacy threats. In order to protect the privacy of all blockchain data on the chain and make it public and transparent, LKBT uses zero-knowledge proof and ring signature technology to ensure the security of smart contracts.

About LKBT

LKBT is the world's first blockchain infrastructure designed specifically for trusted transactions and settlements of data assets (knowledge, algorithms, and computing power). Its goal is to clearly define the quality standards, pricing rules, transaction settlement systems and institutions of data assets (knowledge, algorithms, and computing power), and to completely solve the problems of compliance, pricing, algorithm billing, and settlement in transactions involving digital assets (knowledge, algorithms, and computing power).

LKBT official website:

http://lkbt.pro/