libMD5 for Frontier 5

What is it?

MD5 is a message digest algorithm that can be used to condense an arbitrary length message (string) down to a 16 byte (128 bit) hash. It is defined in RFC1321 The MD5 Message-Digest Algorithm.

The included Frontier DLL is based on the MD5 code from the SSLeay 0.9.0b distribution (see below for copyright information).

Installation Notes

To complete the installation of the libMD5 extension:

1. Go to libMD5.init() and run the script.

2. Quit and relaunch Frontier.

Documentation

The libMD5 extension implements two verbs.

libMD5.digest () takes a string as a parameter and computes its MD5 hash value. The hash is returned as a binary (16 bytes).

libMD5.digestAsHex () works exactly as libMD5.digest (), excep it returns a string containing a hexadecimal representation (32 bytes) of the MD5 hash.

See also: libMD5.examples ().

Copyright Notice from SSLeay 0.9.0b

Copyright (C) 1997 Eric Young (eay@cryptsoft.com)
All rights reserved.

This package is an SSL implementation written by Eric Young (eay@cryptsoft.com). The implementation was written so as to conform with Netscapes SSL.

This library is free for commercial and non-commercial use as long as the following conditions are aheared to. The following conditions apply to all code found in this distribution, be it the RC4, RSA, lhash, DES, etc., code; not just the SSL code. The SSL documentation included with this distribution is covered by the same copyright terms except that the holder is Tim Hudson (tjh@cryptsoft.com).

Please note that MD2, MD5 and IDEA are publically available standards that contain sample implementations, I have re-coded them in my own way but there is nothing special about those implementations. The DES library is another mater :-).

Copyright remains Eric Young's, and as such any Copyright notices in the code are not to be removed. If this package is used in a product, Eric Young should be given attribution as the author of the parts of the library used. This can be in the form of a textual message at program startup or in documentation (online or textual) provided with the package.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software must display the following acknowledgement: "This product includes cryptographic software written by Eric Young (eay@cryptsoft.com)" The word 'cryptographic' can be left out if the rouines from the library being used are not cryptographic related :-).
4. If you include any Windows specific code (or a derivative thereof) from the apps directory (application code) you must include an acknowledgement: "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"

The licence and distribution terms for any publically available version or derivative of this code cannot be changed. i.e. this code cannot simply be copied and put under another distribution licence [including the GNU Public Licence.]

The reason behind this being stated in this direct manner is past experience in code simply being copied and the attribution removed from it and then being distributed as part of other packages. This implementation was a non-trivial and unpaid effort.