Secure Hash Algorithm SHA-1
Implements the Secure Hash Algorithms SHA 1
Used in Qt Core (QCryptographicHash).
The sources can be found in qt-everywhere-src-5.15.15/qtbase/src/3rdparty/sha1.
Copyright (C) Dominik Reichl <dominik.reichl@t-online.de> Copyright (C) 2016 The Qt Company Ltd
Public Domain.