The underlying SHA-2 library is an unmodified copy created by Dr Brian Gladman, Worcester, UK. It is distributed under the license conditions below.
The free distribution and use of this software in both source and binary form is allowed (with or without changes) provided that:
- distributions of this source code include the above copyright
notice, this list of conditions and the following disclaimer;
- distributions in binary form include the above copyright notice,
this list of conditions and the following disclaimer in the
documentation and/or other associated materials;
- the copyright holder's name is not used to endorse products built using this software without specific written permission.
ALTERNATIVELY, provided that this notice is retained in full, this product may be distributed under the terms of the GNU General Public License (GPL), in which case the provisions of the GPL apply INSTEAD OF those given above.