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/*
* Copyright (c) 2024 Vaughn Nugent
*
* Package: noscrypt
* File: noscryptutil.h
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with noscrypt. If not, see http://www.gnu.org/licenses/.
*/
/*
* noscrypt is a an open-source, strict C89 library that performs the basic
* cryptographic operations found in the Nostr protocol. It is designed to be
* portable and easy to use in any C89 compatible environment. It is also designed
*/
#pragma once
#ifndef NOSCRYPTUTIL_H
#define NOSCRYPTUTIL_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdlib.h>
#include "noscrypt.h"
#define E_OUT_OF_MEMORY -10
typedef struct nc_util_enc_struct NCUtilEncryptionContext;
NC_EXPORT NCResult NC_CC NCUtilGetEncryptionPaddedSize(uint32_t encVersion, int32_t plaintextSize);
NC_EXPORT NCResult NC_CC NCUtilGetEncryptionBufferSize(uint32_t encVersion, int32_t plaintextSize);
NC_EXPORT NCUtilEncryptionContext* NC_CC NCUtilAllocEncryptionContext(uint32_t encVersion);
NC_EXPORT NCResult NC_CC NCUtilInitEncryptionContext(
NCUtilEncryptionContext* encCtx,
const uint8_t* plainText,
uint32_t plainTextSize
);
NC_EXPORT void NC_CC NCUtilFreeEncryptionContext(NCUtilEncryptionContext* encCtx);
NC_EXPORT NCResult NC_CC NCUtilGetEncryptedSize(const NCUtilEncryptionContext* encCtx);
NC_EXPORT NCResult NC_CC NCUtilReadEncryptedData(
const NCUtilEncryptionContext* encCtx,
uint8_t* output,
uint32_t outputSize
);
NC_EXPORT NCResult NCUtilSetEncryptionProperty(
NCUtilEncryptionContext* ctx,
uint32_t property,
uint8_t* value,
uint32_t valueLen
);
#ifdef __cplusplus
}
#endif
#endif /* NOSCRYPTUTIL_H */
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