The source code used in CryptoSys PKI Pro is original code written by David Ireland except for the following:
DUMPASN1.C
program
by Peter Gutmann <http://www.cs.auckland.ac.nz/~pgut001/dumpasn1.c>.
BIGDIGITS
library first published June 2001 by David Ireland
<https://www.di-mgt.com.au/bigdigits.html>.
Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All rights reserved. License to copy and use this software is granted provided that it is identified as the ``RSA Data Security, Inc. MD5 Message-Digest Algorithm'' in all material mentioning or referencing this software or this function. License is also granted to make and use derivative works provided that such works are identified as ``derived from the RSA Data Security, Inc. MD5 Message-Digest Algorithm'' in all material mentioning or referencing the derived work. RSA Data Security, Inc. makes no representations concerning either the merchantability of this software or the suitability of this software for any particular purpose. It is provided ``as is'' without express or implied warranty of any kind. These notices must be retained in any copies of any part of this documentation and/or software.
Thanks to the guys at NullSoft for their Nullsoft Scriptable Install System.
[New in v20.5] We are most grateful to Daniel Gillmor for the latest S/MIME Example Keys and Certificates in RFC9216 [SMIME-LAMPS].