17 lines
857 B
Solidity
17 lines
857 B
Solidity
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// SPDX-License-Identifier: GPL-2.0-or-later
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pragma solidity >=0.5.0;
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/// @title Interface for verifying contract-based account signatures
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/// @notice Interface that verifies provided signature for the data
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/// @dev Interface defined by EIP-1271
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interface IERC1271 {
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/// @notice Returns whether the provided signature is valid for the provided data
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/// @dev MUST return the bytes4 magic value 0x1626ba7e when function passes.
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/// MUST NOT modify state (using STATICCALL for solc < 0.5, view modifier for solc > 0.5).
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/// MUST allow external calls.
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/// @param hash Hash of the data to be signed
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/// @param signature Signature byte array associated with _data
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/// @return magicValue The bytes4 magic value 0x1626ba7e
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function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);
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}
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