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Software Vault: The Gold Collection
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Software Vault - The Gold Collection (American Databankers) (1993).ISO
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1993-06-26
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1KB
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26 lines
/************************************************************************\
**
** XCODE - File encryption/decryption
** 06/26/93, John C. Howard @ Compudata BBS, NJ,
** ref: David Stafford @ ZNT:COMPSHOPPER Compuserv
**
** Compilation:
** This code was compiled and tested under Ultrix, Linux, RISC\OS,
** MS-C for DOS and a few small C compilers without needing any modification.
**
** Description:
** The key is a 32 bit value giving 2^32 (4,294,967,296) combinations.
** If a code breaking program were to process a 1,000 keys a second testing
** based on an ASCII text file context, decoding would take an average of
** 25 days. If two encryption passes are made using 2 keys, that
** duration would be multiplied by 4 billion.
**
** Passing the encrypted file back through XCODE with the key will produce
** the original file.
**
** Any Suggestions or Comments? Send me mail at Compudata BBS,
** (609) 232-1245 on Conference 21 (C-language).
**
\************************************************************************/