Solidity API

ECDSA

derived from https://github.com/OpenZeppelin/openzeppelin-contracts (MIT license)

ECDSA__InvalidS

error ECDSA__InvalidS()

ECDSA__InvalidSignature

error ECDSA__InvalidSignature()

ECDSA__InvalidSignatureLength

error ECDSA__InvalidSignatureLength()

ECDSA__InvalidV

error ECDSA__InvalidV()

recover

function recover(bytes32 hash, bytes signature) internal pure returns (address)

recover signer of hashed message from signature

Parameters

Name	Type	Description
hash	bytes32	hashed data payload
signature	bytes	signed data payload

Return Values

Name	Type	Description
[0]	address	recovered message signer

recover

function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address)

recover signer of hashed message from signature v, r, and s values

Parameters

Name	Type	Description
hash	bytes32	hashed data payload
v	uint8	signature "v" value
r	bytes32	signature "r" value
s	bytes32	signature "s" value

Return Values

Name	Type	Description
[0]	address	recovered message signer

toEthSignedMessageHash

function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32)

generate an "Ethereum Signed Message" in the format returned by the eth_sign JSON-RPC method

Parameters

Name	Type	Description
hash	bytes32	hashed data payload

Return Values

Name	Type	Description
[0]	bytes32	signed message hash