Kcash is the future Alipay. The main service carrier is composed of three parts: Kchain, wallet APP, and digital currency bank card. Through the products and services of the Kcash platform, it provides enterprises with the service of quickly deploying efficient blockchain solutions, and at the same time realizes the one-stop management of Bitcoin, Ethereum, various tokens and the company's own digital tokens, which is simple and convenient Complete the transaction and exchange of digital currency, and can bind digital assets with bank cards, realize the seamless connection between digital currency and the physical world, let your digital currency be used in various transaction and consumption scenarios, and truly activate your digital currency assets.
Kcash is based on the world, and on the premise of complying with the current laws and policies of various countries, it connects with payment institutions and card issuers to provide users with compliant and safe products and services.

Project Vision

Kcash is committed to providing the public with a safe, convenient and efficient digital asset platform. By opening up the connection between digital currency and the physical world, everyone can easily use your digital assets anytime, anywhere, and enrich the block The application scenarios of chain technology and digital currency promote its service to business progress and social development.

Project Highlights

One-stop management
Kcash manages a variety of digital currencies through a wallet APP. It not only supports the storage and management of mainstream assets such as Bitcoin and Ethereum, but also supports The standard protocols of smart contract platforms such as Ethereum, Achain, and Kchain rapidly increase the number of tokens issued by each platform. While reducing the burden of user management, it also provides wallet service support for new ICO projects, allowing the project team to focus more on core services.
Decentralized service
Kcash upholds the core essence of blockchain and provides users with decentralized digital currency storage solutions, wallet keys and address private key information for all types of currencies are stored in the user's local system. At the same time, Kcash provides a convenient key backup solution - users only need to make a backup once, write down 12 words, and save them in a safe place. Even if the types of digital currency are added later, all types of digital currency assets can be restored with the 12 words backed up.
Multiple security guarantees
In addition to allowing users to fully control wallet keys, Kcash also provides multi-signature technical guarantees and two-step authorization verification for digital asset management of different sizes. Verification methods such as mobile phone verification code, fingerprint, and living body are carried out during transfer transactions to ensure the security of digital currency assets in an all-round way.
Multi-language support
Kcash Wallet APP plans to support multiple languages ​​in mainstream digital currency markets such as Chinese, English, Japanese, and Korean, clearing language barriers for creating world-class wallet applications.

Technical Overview

Zero-Knowledge Proof Zero-Knowledge Proof
Zero-Knowledge (Zero-Knowledge Proof) It refers to the fact that the prover can , to convince the verifier that a certain assertion is correct. And Kcash uses zero-knowledge proof technology to complete cross-chain and cross-smart contract technology.
SHA512-ZERO algorithm encryption technology
SHA (Secure Hash Algorithm, translated as Secure Hash Algorithm) is designed by the US National Security Agency (NSA), and the US National Institute of Standards and Technology (NIST) ) published a series of cryptographic hash functions. Through the customization of the SHA512 encryption technology, the SHA512-ZERO encryption technology exclusively used by Kcash has been developed to ensure the data security of the Kcash network.
Ring Topology Hub Ring Topology Relay Technology
Kcash's Ring Topology Hub technology connects multiple chains to one Hub, allowing digital asset terminals to easily realize one-click cross-chain and conversion . The advantage of the ring is that the resource consumption of the topology is much smaller than that of the star and the tree. It may not be obvious if there are few nodes and the distance is short, but the advantage of the ring network will be obvious if the distance is long and there are many nodes.
NOBLOCK technology engine
Kcash's original NOBLOCK technology engine allows light wallets to truly achieve the lightest purpose. At present, a huge problem of light wallets is to receive the block BLOCK information of the blockchain network. Since the blockchain network achieves data security through data synchronization redundancy, the network requests of light wallets occupy a large amount of network bandwidth.
Our design idea is to let the blockchain browser become our block BLOCK data source, and we no longer synchronize the block BLOCK data. Using the data source of the blockchain browser will bring about a problem, that is, how can the correctness of the data source be guaranteed. We have adopted the design architecture of the BCBP (Block Chain Browser Pool) blockchain browser pool.
NO-LOCALCOIN exchange network
NO-LOCALCOIN exchange network is based on the Achain blockchain platform through customized smart contracts and cross-chain gateway technology to achieve risk-free digital currency exchange. The Kcash platform or users holding Kcash tokens can create exchange smart contracts, provide guarantee services through the creation of contracts, and use contract mechanisms to avoid breaches of contracts by all parties, avoid the biased arbitration of centralized custodian institutions, and ensure that all three parties involved have no risk of loss. After the contract creator facilitates the exchange transaction, he will obtain a corresponding proportion of guaranteed returns.
ZeroPay Lightning Payment Network
The decentralization of blockchain will bring the problem of low payment efficiency. We implement the Kcash lightning payment network (essentially based on the existing blockchain network to build a Kcash VPN subnet) through the following technologies, and the second-level confirmation of transfers ensures that real-time credit card consumption will not be affected by the blockchain. The key points of technical design are as follows:< br> Customize mobile client, Kcash user's blockchain transfer as SHA512-ZERO encryption mark;
Develop enterprise-level blockchain nodes, detect Kcash user's blockchain activities at any time, and perform legitimacy verification and traffic analysis wait. 7X24 hours of uninterrupted detection of enterprise-level nodes, analysis of balance changes provided to server users, and reporting to the Kcash server;
Kcash server receives the analysis results of enterprise-level blockchain nodes, and when the user initiates a card swiping request, it has been able to real-time It is clear whether the user has actually initiated a blockchain transfer request to prevent malicious double spending.

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