snarkjs VS example-helloworld

git clone https://github.com/iden3/snarkjs cd snarkjs npm ci cd ../simple-zk

The generated wasm and r1cs files are available in the build folder. To generate the proof, we need a proving key file, and to generate this file, we need a ptau file. This ptau file can be generated by snarkjs, or you can download a pregenerated one (you can find the links in the snarkjs repo). For testing, the generated one is good for us, but in your production app, it’s recommended to do the ceremony and generate your own ptau file. (You can read about it in my previous article.)

Their goal was to teach how to use Circom to build zero-knowledge circuits and SnarkJS to compile them into solidity smart contracts.

Oh yeah, this is a known issue with windows; it's perfect on Mac. Do the steps here resolve it: https://github.com/iden3/snarkjs/issues/57 ?

The project mentions that it uses snarkjs and I thought I'd link it directy here. [1] What's interesting in the setup of systems like this one is the "Powers of Tau" ceremony which in decentralized manner (secure multi-party computation) avoid the "trusted setup" problem in non-interactive variants of zero knowledge proof systems like this one. [2]

[1] https://github.com/iden3/snarkjs

[2] https://github.com/ebfull/powersoftau

git clone https://github.com/solana-labs/example-helloworld simple-zk

I am trying to run a local cluster for the example hello wold program on GitHub but I keep running into these pop-up errors when I run the "solana-test-validator" command and I'm not sure why. For context, I am on a machine running Windows 11, running cmd prompt in administrative mode, and I have tried re-installing the Solana CLI tool but am still seeing these errors.

Intro to Programming on Solana https://paulx.dev/blog/2021/01/14/programming-on-solana-an-introduction/ Intro to Anchor Framework https://project-serum.github.io/anchor/getting-started/introduction.html Video Solana Core Concepts https://www.youtube.com/watch?v=4dNuMXBjpr0&list=PLilwLeBwGuK4teLcqyXavweEbveCjjRk0 Solana Tutorial | Solana for Developers https://www.youtube.com/watch?v=qNIhClYDjR8 Programming Solana (playlist) https://www.youtube.com/playlist?list=PL41Cw3fN3CfdbmhgxADwyDyIoDrxc22v2 Programming Solana Smart Contracts https://www.youtube.com/watch?v=i6Ycr5nhjH8 Figment Learn Pathway (playlist) https://www.youtube.com/playlist?list=PLkgTdjgP1aUAiqqbvVi3b0sSdxByd5KSX Programming Solana Smart Contracts | Hello World Anchor Tutorial https://www.youtube.com/watch?v=oD1umX\_DnUw Courses Building Smart Contracts on Solana https://solhack.com/courses/building-solana-smart-contracts-dapps-with-james-bachini/ How Rusty is Your Rustlang https://solhack.com/courses/how-rusty-is-your-rust-lang/ Programming on Solana an Introduction https://solhack.com/courses/programming-on-solana-an-introduction/ Solana Security Audit Workshop by Solend https://solhack.com/courses/solana-security-audit-workshop-by-solend/ Figment Solana-Pathway https://learn.figment.io/network-documentation/solana/solana-pathway . Docs Terminology https://docs.solana.com/terminology Transactions https://docs.solana.com/developing/programming-model/transactions Accounts https://docs.solana.com/developing/programming-model/accounts Runtime https://docs.solana.com/developing/programming-model/runtime Devnet Endpoint and Rate Limits https://docs.solana.com/cluster/rpc-endpoints#devnet Testnet Endpoint and Rate Limits https://docs.solana.com/cluster/rpc-endpoints#testnet On-chain Programs https://docs.solana.com/developing/on-chain-programs/overview Native Programs https://docs.solana.com/developing/runtime-facilities/programs JSON RPC API https://docs.solana.com/apps/jsonrpc-api Solana Program Library https://spl.solana.com/ Examples / Reference Implementations Hello World Example https://github.com/solana-labs/example-helloworld Serum DEX Example https://github.com/project-serum/anchor/blob/master/examples/swap/programs/swap/src/lib.rs Automated Market Maker + Swap Reference Implementation https://github.com/solana-labs/oyster-swap Borrow/Lend Reference Implementation https://github.com/solana-labs/oyster-lending Margin Reference Implementation https://github.com/solana-labs/oyster-margin . SDKs Go: https://github.com/dfuse-io/solana-go Go: https://github.com/portto/solana-go-sdk C#: https://github.com/bmresearch/Solnet C#: https://github.com/bmresearch/Solnet.Serum JS: https://github.com/solana-labs/solana-web3.js/ JS/TS: https://github.com/project-serum/serum-ts Java: https://github.com/skynetcapital/solanaj Java: https://github.com/skynetcapital/solanaj-programs Python: https://github.com/michaelhly/solana-py Python: https://github.com/serum-community/pyserum Swift: https://github.com/ajamaica/Solana.Swift Extra stuff: https://github.com/paul-schaaf/awesome-solana Tools Solana Explorers https://explorer.solana.com/ https://solscan.io/ https://solanabeach.io/transactions Command Line Interface https://docs.solana.com/cli SPL Token UI https://spl-token-ui.com/

If we use the Hello World program provided by Solana Labs as reference, that program increments a counter every time a user interacts with the program:

The Solana helloworld example client is written in TypeScript. I found it hard to read because its extensive use of global state. To try and help future users and to learn a little about it myself I made an implementation of the example client in Rust which I find to be slightly more readable.

In this article, we'll walk through the process of sending a custom instruction to a solana on-chain program. We'll modify the solana example helloworld to take two instructions, SayHello and SayGoodbye.

Solana has a nice hello-world example that shows us how to build a Rust program on Solana from scratch and interact with it using a typescript SDK.

HelloWorld: https://github.com/solana-labs/example-helloworld