In ethereum, we can sign a message and verify it onchain if the signer is correct. How can we do this in smart contract near_sdk_rs?
Verify signature in smart contract near_sdk rust
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Use the environment function
env::ecrecover(hash, signature, v, malleability_flag), to get the signer's public key from his signed message hash and signature.https://docs.near.org/develop/contracts/environment/#environment-functions