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* @class OFHMAC OFHMAC.h ObjFW/OFHMAC.h
*
* @brief A class which provides methods to calculate an HMAC.
*/
@interface OFHMAC: OFObject
{
Class <OFCryptoHash> _hashClass;
id <OFCryptoHash> _outerHash, _innerHash;
id <OFCryptoHash> _outerHashCopy, _innerHashCopy;
id <OFCryptoHash> _Nullable _outerHash, _innerHash;
id <OFCryptoHash> _Nullable _outerHashCopy, _innerHashCopy;
bool _calculated;
}
/*! The class for the cryptographic hash used by the HMAC. */
@property (readonly, nonatomic) Class <OFCryptoHash> hashClass;
/*!
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