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Generate EDSCA recoverable signature for use with OpenZeppelin EDSCA contract (Embedded/C/C++ Hardware wallet)

I'd like to sign a message on an Arduino-compatible microcontroller, and create a recoverable signature which can be used with EIP-191 and Ethereum's erecover / OpenZeppelin's ECDSA smart contracts to ...
xtools's user avatar
  • 111
2 votes
2 answers

Why can I use Linked Libraries on Remix IDE without deploying them first?

I'm trying to understand the differences between Linked Libraries and Embedded Libraries. I already read some articles and watched these tutorials: https://...
António Gonçalves's user avatar
1 vote
3 answers

Can I interact with an ethereum contract through C/C++?

Assuming I have a device that receives sensor data in C, and I want to make calls to an Ethereum smart contract directly through it, is there a way to use C/C++ for that communication? Something ...
riverwastaken's user avatar
5 votes
1 answer

Embedded Ethereum Wallet

Is there any embedded wallet library available for Ethereum I can use for the IoT devices (Raspberry Pi, Arduino etc)? I want something similar to MetaMask but, instead of holding the wallet addresses,...
Njabulo's user avatar
  • 85
2 votes
1 answer

Parity node browser not supported in the ethembedded .iso?

I recently started a node with the parity implementation. I could easily load the console and wallet in my browser via http://localhost:8080/home/. Then I downloaded the parity pre-loaded .iso ...
Amazing's user avatar
  • 352
6 votes
1 answer

How to implement Ethereum protocol to some tinyOS, e.g, contiki?

I find out Ethereum has many implements to many OS with many different languages. But i don't know if I want to use ethereum as protocol on contiki OS or cooja simulation, so what is the best choice ...
phuong's user avatar
  • 455