LISP Encryption

BcadLispEncrypt.exe is a command line tool that uses hard encryption to encrypt LISP files. Bricscad supports this type of encryption.

NOTE   BcadLispEncrypt.exe is not delivered with Bricscad. Download Lisp encryption tool.

To encrypt a LISP file

1. Open a new command line window.

2. Type the following command: BcadLispEncrypt.exe [LispFileName.lsp] [EncryptedFileName.lsp]

The encrypted LISP file is created.

NOTE   The output filename can be omitted. In that case the encrypted file will have the name LispFileName.lsp.enc. The purpose of the extension ".enc" is only to avoid unintended deletion of the original LISP files. The ".enc" extension is not recognized by Bricscad.

To load an encrypted LISP file

1. Load the encrypted LISP file in the same as for a non  encrypted LISP file.

Bricscad automatically decrypts the encrypted LISP file in order to be able to use it. This decrypted LISP requires protection. The Bricscad LISP protection mechanism replaces the decrypted LISP by the word "PROTECTED" when the decrypted LISP code or parts of it are extracted at runtime to be printed to the command line, to a file or to an entity.

Tell me about...

Copying Code Examples from the Bricscad Programmer’s Reference

Programming Overview of LISP (LISt Processing) Language