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/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
* 2018, 2019, 2020
* Jonathan Schleifer <js@nil.im>
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/*
* Copyright (c) 2008-2021 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
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* @warning This invalidates any pointer previously returned by @ref digest. If
* you are still interested in the previous digest, you need to memcpy
* it yourself before calling @ref setKey:length:!
*
* @param key The key for the HMAC
* @param length The length of the key for the HMAC
*/
- (void)setKey: (const void *)key
length: (size_t)length;
/**
* @brief Adds a buffer to the HMAC to be calculated.
*
* @param buffer The buffer which should be included into the calculation
* @param length The length of the buffer
*/
- (void)updateWithBuffer: (const void *)buffer
length: (size_t)length;
/**
* @brief Resets the HMAC so that it can be calculated for a new message.
*
* @note This does not reset the key so that a new HMAC with the same key can
* be calculated efficiently. If you want to reset both, use
* @ref setKey:length:.
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* @warning This invalidates any pointer previously returned by @ref digest. If
* you are still interested in the previous digest, you need to memcpy
* it yourself before calling @ref setKey:length:!
*
* @param key The key for the HMAC
* @param length The length of the key for the HMAC
*/
- (void)setKey: (const void *)key length: (size_t)length;
/**
* @brief Adds a buffer to the HMAC to be calculated.
*
* @param buffer The buffer which should be included into the calculation
* @param length The length of the buffer
*/
- (void)updateWithBuffer: (const void *)buffer length: (size_t)length;
/**
* @brief Resets the HMAC so that it can be calculated for a new message.
*
* @note This does not reset the key so that a new HMAC with the same key can
* be calculated efficiently. If you want to reset both, use
* @ref setKey:length:.
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