24 lines
1.0 KiB
Solidity
24 lines
1.0 KiB
Solidity
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pragma solidity >=0.6.12;
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// Author: Louis Holbrook <dev@holbrook.no> 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
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// SPDX-License-Identifier: AGPL-3.0-or-later
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// File-version: 1
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interface IDigest {
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// Returns the default digest encoding used by the contract instance.
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function defaultDigestEncoding() external view returns (uint256 _encoding);
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// Check if the given encoding has been implemented in the contract instance.
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function haveDigestEncoding(uint256 _codec) external view returns(bool);
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// Verify and encode the given digest for a specific hashing algorithm.
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// Returns a zero-length byte array if digest is invalid.
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// Must succeed if called with the defaultDigestEncoding and a valid digest.
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function encodeDigest(bytes memory _data, uint256 _encoding) external view returns (bytes memory);
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// Encodes the digest using the default digest encoding.
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// Returns a zero-length byte array if digest is invalid.
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// Must succeed with a valid digest.
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function encodeDigest(bytes memory _data) external view returns (bytes memory);
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}
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