Boost Software License Version 1.0. See LICENSE_BOOST.txt for details. Alternatively, this file may be distributed under the terms of the Tango 3-Clause BSD License (see LICENSE_BSD.txt for details).
Copyright (c) 2009-2016 dunnhumby Germany GmbH. All rights reserved.
libgcrypt hash-based message authentication code generator utility class.
Be aware that not all versions of libcgrypt support all hash algorithms; the constructor will throw if the specified algorithm is not supported by the run-time version of libgcrypt. However, if the constructor does not throw, it is safe to assume it will never throw for the same set of parameters (except for the fatal situation that libgcrypt failed allocating memory).
Requires linking with libgcrypt: -L-lgcrypt