mirror of
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68 lines
2.0 KiB
Markdown
68 lines
2.0 KiB
Markdown
# This is the bacqend, the smart-contract crib
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We proudly present the TotpAuthenticator.
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One step closer to zero trust and one step away from web2.
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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!
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## Cyborg Run 🏃♂️
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Yarn, remix and hardhat:
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```shell
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yarn hardhat node
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yarn remixed -s . --remix-ide https://remix.ethereum.org
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yarn hardhat test
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```
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## Hashing
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How to calculate and submit hash:
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convert TOTP (eg. `123456`) to bytes/hex with ethers. Padding left!!!
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Then sha256 it and insert `0x` at the start.
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That's it, now it should match the sha256 on-chain.
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123456 as hex: 0x000000000000000000000000000000000000000000000000000000000001e240
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123456 to hex to sha256 hash: 0x4a438cf911dc63bd7d53c1be977516e82f4d8f19b950d72d6730d4717709eae1
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[bytes32](https://web3-type-converter.onbrn.com/)
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[sha256 from hex](https://www.liavaag.org/English/SHA-Generator/)
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## Optimism
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A blocqchain with free lunch, I mean, free gas! How could we not choose for Optimism?
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Contract TotpAuthenticator deployed to Optimism Goerli:
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```bash
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0xfa99801Ec6BeFcbfC1eB2d12dc8255453574b276
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# Deployment transaction hash
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0x846528416731ddd42e37b8f2dc9fbac24aaf105ebe23d53707a680fc99d68ce0
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```
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Also on Main Goerli bcs Opt Goerli goes not yet get indexed by theGraph:
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```bash
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0x5E9607EE52286732A5E3A0Fc57dF367bCb8adAa5
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# Tx hash
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0x1462f472eb8cda174a47529f6ea0be6a97965e175be9f7f3709a54844228f24a
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```
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It's the same address, ain't that funney 🤔
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**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.
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Owner wallet:
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```sh
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0x369551E7c1D29756e18BA4Ed7f85f2E6663e1e8d
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```
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[Testnet Explorer](https://blockscout.com/optimism/goerli)
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[Faucets](https://optimismfaucet.xyz/)
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