Signatures a signer could have issued that verify the same as signature.
ECDSA signatures are malleable: (r, s) and (r, n - s) are both valid.
EIP-191 signatures additionally carry a recovery byte v that wallets
return as 27/28 or 0/1. Verifiers also accept EIP-155 style v >= 35,
but no signer issues those for personal_sign, so they are not listed.
The result always includes signature itself. Other algorithms (Ed25519,
RSA) have a single valid signature.
Signatures a signer could have issued that verify the same as
signature.ECDSA signatures are malleable:
(r, s)and(r, n - s)are both valid. EIP-191 signatures additionally carry a recovery bytevthat wallets return as 27/28 or 0/1. Verifiers also accept EIP-155 stylev >= 35, but no signer issues those forpersonal_sign, so they are not listed.The result always includes
signatureitself. Other algorithms (Ed25519, RSA) have a single valid signature.