[CTF from 0 to 1 learning] 2. CTF cryptography

cryptography Summary Cryptography is a technical science that studies the compilation and deciphering of passwordsThe technical and scientific science of keeping information confidential is called cryptocodingCryptography is the science and technology for deciphering cryptography Basic Model of Information Security Basic cryptographic ...

Posted on Sat, 04 Dec 2021 14:11:13 -0500 by mhewall

NFT environment deployment - vnt.js

This is just an example of contract deployment and calling using vnt.js. For more vnt.js interfaces, please refer to: VNT Javascript API premise 1. Operating environment Installation required node: v8.11.2 2. Initialize the deployment directory mkdir deploy cd deploy npm init # This step will generate package.json 3. Installation dep ...

Posted on Thu, 18 Nov 2021 08:40:45 -0500 by shlomikalfa

Develop the first blockchain application (used by Fisco alliance chain)

Develop the first blockchain application This paper introduces contract compilation and how to deploy to blockchain Java SDK Call and access the contract on the blockchain. This tutorial requires users to be familiar with the Linux operating environment, have the basic skills of Java development, be able to use Gradle tools, and be familiar w ...

Posted on Tue, 16 Nov 2021 11:55:45 -0500 by bhavesh

IPFS private chain construction

IPFS installation Officially download the Releases version, version number v0.10.0 [root@localhost ~]# mkdir ipfs && cd ipfs [root@localhost ipfs]# tar -zxf go-ipfs_v0.10.0_linux-amd64.tar.gz [root@localhost ipfs]# cd go-ipfs [root@localhost go-ipfs]# ls install.sh ipfs LICENSE LICENSE-APACHE LICENSE-MIT README.md [root@loca ...

Posted on Tue, 16 Nov 2021 05:37:15 -0500 by philhale

Detailed tutorial of C/C + + game project: Gold Miner

      "Gold miner" is a very classic game. In the game, players can get gold through continuous mining, and finally break into the next level. In this process, there will be rocks, smoke and mice to make trouble, and even small mice carrying explosive bags. Players must overcome them in order to enter deeper mines. T ...

Posted on Mon, 08 Nov 2021 01:52:42 -0500 by spartan789

Fabric test network - marbles private data

catalogue Clear network Install go dependency Delete Docker container of marbles private data link code Start Fabric test network using CouchDB Install and define a chain code with a collection Interact with the test network as an Org1 administrator Setting the Org1 identity environment variable Private data link code of packed marbles ...

Posted on Sat, 06 Nov 2021 18:52:06 -0400 by AcidRain

Implement contract pricing from 0 to 1 on conflux (Blockchain Oracle)

This is a big demand I completed independently, feeding the price to the project contract. The original intention of writing this article is to record his growth and help Hou Lang sum up his experience at the same time.backgroundConflux doesn't have a useful Blockchain Oracle service, only a Witnet waiting to go online. We are worried that Tria ...

Posted on Fri, 05 Nov 2021 13:59:02 -0400 by riversr54

Deploy HECO master synchronization node using HECO binary in Ubuntu system

heco official website: https://www.hecochain.com/zh-cn/heco chain GitHub address: https://github.com/HuobiGroup/huobi-eco-chain/releasesMain network blockchain browser: https://hecoinfo.com/Official deployment document of main network chain: https://docs.hecochain.com/#/dev/installRelated information of heco main network: https://docs.hecoc ...

Posted on Mon, 18 Oct 2021 20:14:16 -0400 by ragear

Two minutes to understand how Starcoin can decentralize and upgrade Stdlib

*This article is compiled by WGB, the original author of Starcoin community, according to the live broadcast of "decentralized Stdlib upgrade - Starcoin vs ETH", click View original text. Unlike other public chains, starcoin defines the consensus, block settings, block rewards, account definitions, Token definitions, NFT protocols, ...

Posted on Tue, 12 Oct 2021 17:00:42 -0400 by Z3roDowner

Fabric1.4 super detailed environment can't be built. Our blogger writes code upside down

Introduction: in the process of fabric environment configuration, it is normal to make mistakes. Every pit I stepped on is a stepping stone on our way to success. Of course, I hope you can cross the pit I stepped on 1. Manually configure Alibaba's download source vim /etc/apt/sources.list 2. Enter the following to save and exit deb http: ...

Posted on Sun, 10 Oct 2021 07:50:30 -0400 by Ice