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/*
Copyright 2018 ZeroEx Intl.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
pragma solidity ^0.4.23;
contract ISignatureValidator {
/// @dev Approves a hash on-chain using any valid signature type.
/// After presigning a hash, the preSign signature type will become valid for that hash and signer.
/// @param signer Address that should have signed the given hash.
/// @param signature Proof that the hash has been signed by signer.
function preSign(
bytes32 hash,
address signer,
bytes signature)
external;
}
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