Acknowledgements

The source code used in CryptoSys PKI Pro is original code written by David Ireland except for the following:

• The DES algorithm includes code by Richard Outerbridge placed in the public domain August 1992.
• The AES algorithm includes code placed in the public domain by Vincent Rijmen, Antoon Bosselaers and Paulo Barreto in December 2000.
• The SHA-1 algorithm includes code derived from 100% public domain code by Steve Reid <steve@edmweb.com> with modifications based on work by Peter Gutmann as posted to sci.crypt in message <30ajo5$oe8@ccu2.auckland.ac.nz>.
• The code for SHA-3 and its family uses code derived from public domain code by Ronny Van Keer, May 2012, <http://keccak.noekeon.org/>.
• The code for RIPEMD-160 is adapted from software written by Antoon Bosselaers [RMD].
• The HMAC algorithm includes code from RFC 2104 HMAC: Keyed-Hashing for Message Authentication [HMAC].
• The code to read and write ASN.1 files uses techniques from the DUMPASN1.C program by Peter Gutmann <http://www.cs.auckland.ac.nz/~pgut001/dumpasn1.c>.
• The ZLIB data compression utilities use source code with permission from the 'zlib' general purpose compression library version 1.2.3 Copyright (C) 1995-2005 Jean-loup Gailly and Mark Adler.
• The code for curve25519 uses code under an MIT license by Mehdi Sotoodeh <https://github.com/msotoodeh/curve25519>.
• The code for curve448 is based on code by Mike Hamburg under an MIT license <https://git.zx2c4.com/goldilocks/>.
• The code for Salsa20 and ChaCha20 uses code derived from public domain code by D.J. Bernstein, <http://cr.yp.to/djb.html>.
• The code for Poly1305 uses code adapted from public domain software by Andrew Moon, <https://github.com/floodyberry/poly1305-donna>.
• Multiple-precision arithmetic is carried out using a modified version of the BIGDIGITS library first published June 2001 by David Ireland <https://di-mgt.com.au/bigdigits.html>.
• The code to prompt for keyboard entropy and wipe files is derived from code published in Secure Programming Cookbook [VIEG03].
• The code to process JSON uses source code 'json.c' Copyright (C) 2011 Joseph A. Adams (joeyadams3.14159@gmail.com).
• The code to call Intel DRNG functions uses source code Copyright (C) 2014, Intel Corporation with conditions.
• Some code to produce incidental pseudorandom numbers (not the core secure Random Number Generator) uses source code from "TinyMT32 Pseudo Random Number Generator (PRNG)" Copyright (c) 2011, 2013 Mutsuo Saito, Makoto Matsumoto, Hiroshima University and The University of Tokyo under a BSD-3-Clause license.
• The MD5 algorithm includes code derived from the RSA Data Security, Inc. MD5 Message-Digest Algorithm [RFC1321] which is covered by the following licence:

  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.

• Ditto for MD2, the "RSA Data Security, Inc. MD2 Message Digest Algorithm" [RFC1319].

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].

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