Signing Key

ethers . utils . verifyMessage ( message , signature ) string< Address >

Returns the address that signed message producing signature. The signature may have a non-canonical v (i.e. does not need to be 27 or 28), in which case it will be normalized to compute the `recoveryParam` which will then be used to compute the address; this allows systems which use the v to encode additional data (such as EIP-155) to be used since the v parameter is still completely non-ambiguous.