I am pretty new to Cairo and I am thinking of building a dApp that takes web3 wallet signatures and validate it in Cairo-based contract on Starknet. When using web3.js, I can sign a message like this: web3.eth.accounts.sign('Some data', '0x4c0883a69102937d6231471b5dbb6204fe5129617082792ae468d01a3f…

have you tried this? @martriay cairo-examples/secp at master · starkware-libs/cairo-examples · GitHub

Is it possible to use verify_ecdsa_signature in cairo to verify a web3.js/wallet ecdsa signature?

martriay January 14, 2022, 2:39pm 2

It’s not, that’s the StarkKey’s signing algorithm. Check Support Web3 wallets in StarkNet

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