SpicyNoodles: crypto DLL for Frontier

The crypto extension for Frontier implements a number of encryption algorithms and hash functions. The cryptographic code is based on the SSLeay 0.9.0b distribution (see below for copyright information).

Status

The current release of extensions.crypto is version 1.1a2. It should work with the Mac OS Classic, Mac OS X, and Windows versions of UserLand Frontier, starting with Frontier 6.0.

If you need access to other encryption algorithms or hashing functions from Frontier, please contact me.

The C source code for the Frontier DLL is available on request. It requires Metrowerks Codewarrior Pro 7 to compile.

Installation

Download extensions.crypto (.zip/.sit), decompress it and open the resulting file with Frontier. A new table will be installed at system.extensions.crypto.

Documentation

The crypto extension currently implements the following verbs:

crypto.encryptRC4 -- implements the RC4 encryption algorithm.
crypto.hashMD2 -- implements the MD2 message-digest algorithm as described in RFC 1319
crypto.hashMD5 -- implements the MD5 message-digest algorithm as described in RFC 1321. Note: This function is present in recent versions of Frontier and Radio as string.hashMD5.
crypto.hashRIPEMD160 -- implements the RIPEMD-160 hash function
crypto.hashSHA1 -- implements the Secure Hash Algorithm SHA-1
crypto.hashSHA -- implements an older version of the Secure Hash Algorithm known as SHA
crypto.hmac_MD5 -- implements keyed-hashing for message authentication as specified in RFC 2104 using the MD5 algorithm

See crypto.examples.oneliners for examples on how to use these verbs.

License

crypto DLL for UserLand Frontier

Copyright Notice from SSLeay 0.9.0b

This package is an SSL implementation written by Eric Young . 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 .

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:

Redistributions of source code must retain the copyright notice, this list of conditions and the following disclaimer.
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.
All advertising materials mentioning features or use of this software must display the following acknowledgement: "This product includes cryptographic software written by Eric Young " The word 'cryptographic' can be left out if the rouines from the library being used are not cryptographic related :-).
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

THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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.