PrivateStamp (Alpha version) – 私人印章(字母版)区块链毕设代写

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PrivateStamp (Alpha version)

A private proof-of-existence DApp.

Prove that you’ve had a file (of any type & size) at a certain time without compromising your privacy.

Currently deployed on Rinkeby network

Technologies used:

Solidity, Truffle, IPFS, Javascript, Web Crypto API, Vue, Vuetify

You need MetaMask extension installed to interact with the app

Demo:

Features:

Secure:

  • Your original file is never transmitted over the network, both encryption & decryption happen locally.

  • Every encryption process generate a different file/hash even if the same file is encrypted with the same password, that’s because a random salt is generated everytime.

Decentralized:

  • Relies on Ethereum blockchain to store/retrieve data

Cheap:

Currently, the app is deployed on test network, so using it is FREE anyway.

  • All expensive operations, such as encryption/decryption/hashing are done locally, only the string that represent the hash that is stored on ethereum.

Development:

Requirements:

  • NodeJS v10 (with node-gyp installed globally)
  • npm or yarn
  • truffle

Smart contract interaction:

  • truffle migrate

Frontend app interaction:

  • cd app
  • npm install or yarn
  • npm run serve or yarn serve

PrivateStamp(Alpha版本)

一个私有的存在证明DApp。

证明您在某个时间拥有一个文件(任何类型和大小),而不会损害您的隐私。

目前部署在Rinkeby network上

使用的技术:

Solidity、Truffle、IPFS、Javascript、Web Crypto-API、Vue、Vuetify

演示:

功能:

https://www.youtube.com/watch?v=z74hus7oNH8

安全:

分散:

  • 原始文件从不通过网络传输,包括加密&解密发生在本地。
  • 每个加密过程都会生成不同的文件/哈希,即使同一文件使用相同的密码加密,这是因为每次都会生成一个随机salt。

便宜:

开发:

目前,该应用程序部署在测试网络上,因此使用它是免费的。

  • 所有昂贵的操作(如加密/解密/哈希)都是在本地完成的,只有代表以太坊eth上存储的哈希的字符串。

Development:

要求:

  • NodeJS v10(全球安装了节点gyp)
  • npm或yarn
  • truffle

智能合约交互:

  • truffle migrate

前端应用程序交互:

  • cd应用程序
  • npm安装或yarn
  • npm运行服务或纱线服务

部分转自网络,侵权联系删除区块链源码网

www.interchains.cc

https://www.interchains.cc/17617.html

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