sign.md

sign

Signature

function sign(uint256 privateKey, bytes32 digest) external returns (uint8 v, bytes32 r, bytes32 s);

Description

Signs a digest digest with private key privateKey, returning (v, r, s).

This is useful for testing functions that take signed data and perform an ecrecover to verify the signer.

Examples

address alice = vm.addr(1);
bytes32 hash = keccak256("Signed by Alice");
(uint8 v, bytes32 r, bytes32 s) = vm.sign(1, hash);
address signer = ecrecover(hash, v, r, s);
assertEq(alice, signer); // [PASS]