2.0 KiB
This is the bacqend, the smart-contract crib
We proudly present the TotpAuthenticator. One step closer to zero trust and one step away from web2. You can now use 2FA authentication for your business contacts your web-applications or even your IOTs without a centralized database storing your keys and authenticating users. The Blocqchain takes over!
Cyborg Run 🏃♂️
Yarn, remix and hardhat:
yarn hardhat node
yarn remixed -s . --remix-ide https://remix.ethereum.org
yarn hardhat test
Hashing
How to calculate and submit hash:
convert TOTP (eg. 123456) to bytes/hex with ethers. Padding left!!!
Then sha256 it and insert 0x at the start.
That's it, now it should match the sha256 on-chain.
123456 as hex: 0x000000000000000000000000000000000000000000000000000000000001e240
123456 to hex to sha256 hash: 0x4a438cf911dc63bd7d53c1be977516e82f4d8f19b950d72d6730d4717709eae1
Optimism
A blocqchain with free lunch, I mean, free gas! How could we not choose for Optimism?
Contract TotpAuthenticator deployed to Optimism Goerli:
0xfa99801Ec6BeFcbfC1eB2d12dc8255453574b276
# Deployment transaction hash
0x846528416731ddd42e37b8f2dc9fbac24aaf105ebe23d53707a680fc99d68ce0
Also on Main Goerli bcs Opt Goerli goes not yet get indexed by theGraph:
0x5E9607EE52286732A5E3A0Fc57dF367bCb8adAa5
# Tx hash
0x1462f472eb8cda174a47529f6ea0be6a97965e175be9f7f3709a54844228f24a
It's the same address, ain't that funney 🤔 Update not the same anymore after debugging the contract and redeploying. Curious if the new contract would again give the same pub address on Optimism - nope.
Owner wallet:
0x369551E7c1D29756e18BA4Ed7f85f2E6663e1e8d