/*
* The contents of this file are subject to the terms of the Common Development and
* Distribution License (the License). You may not use this file except in compliance with the
* License.
*
* You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
* specific language governing permission and limitations under the License.
*
* When distributing Covered Software, include this CDDL Header Notice in each file and include
* the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
* Header, with the fields enclosed by brackets [] replaced by your own identifying
* information: "Portions copyright [year] [name of copyright owner]".
*
* Copyright 2016 ForgeRock AS.
*
* Portions Copyright 2014 Nathaniel McCallum, Red Hat
*/
#include <CommonCrypto/CommonHMAC.h>
#include "base32.h"
/*!
* Methods for dealing with keyed-hash message authentication codes (HMAC).
*/
/*!
* Create a keyed-hash message authentication code (HMAC).
*
* @param algorithm The cryptographic function to use in the calculation of the HMAC.
* @param codeLength The length of the code.
* @param key The secret key.
* @param counter The counter to hash.
*
* @return The keyed-hash message authentication code (HMAC).
*/
+ (NSString *)hmac:(CCHmacAlgorithm)algorithm codeLength:(uint8_t)codeLength key:(NSData *)key counter:(uint64_t) counter;
/*!
* String representation of an HMAC algorithm.
*
* @param algorithm The HMAC algorithm to convert to a string.
*
* @return The string representation of the HMAC algorithm.
*/
/*!
* Convert string to HMAC algorithm constant.
*
* @param string The string to convert back to the HMAC algorithm constant.
*
* @return The HMAC algorithm constant.
*/
/*!
* Returns the number of bytes used by a specific HMAC algorithm.
*
* @param algorithm The HMAC algorithm.
*
* @return The number of bytes used by the algorithm.
*/
@end