TXTCOD TXTCOD is an encoding module using the SAC system.
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Perl module encoding encoding module SAC encoding TXTCOD SAC

TXTCOD Description

TXTCOD is an encoding module using the SAC system. TXTCOD is an encoding module using the SAC system.SYNOPSIS use TXTCOD; TXTCOD::codage($source, $destination, < $file.cod >, < $algorithm.alc >, < $param >); $param = TXTCOD::decodage($source, $destination, $file.cod, < $algorithm.alc >); $file.cod = TXTCOD::createcod;TXTCOD 4.7 encodes files with the SAC system, 2.4 version..The SAC system consists in several algorithms : a default algorithm who can be remplaced by user-written algorithms. Every algorithm uses a .cod file generated by the module and who contains a list of random numbers used by the module in order to ensure a maximal protection.B>This version of the SAC system can encode any type of file (binary files, text) and recognizes automatically their type.In the first part you will see the module's how-to and in the second part how to program an algorithm.FIRST PART : TXTCOD ModuleThese functions will be accessible after you have typed B>1) EncodingYou call the encoding function by typing : TXTCOD::codage($source, $destination, < $file.cod >, < $algorithm.alc >, < $param >); This function doesn't return any value. $source is the file you want to encode. $destination is the file where TXTCOD will send the result of the encoding.These two parameters are B>. $file.cod is the .cod file who is indispensable for the encoding and the decoding. If you don't specify this parameter, will search a ".cod" file, for example "2003.cod". A .cod file MUST be changed every year at least in order to assure an optimal protection. $algorithm.alc is the used algorithm. If you don't put anything, TXTCOD will use the default algorithm. $param is an user-defined parameter who won't be crypted.2) DecodingYou call the decoding function by typing : $param = TXTCOD::decodage($source, $destination, $file.cod, ); $source in the file you want to decode. $destination is the result of the decoding $file.cod et $algorithm.alc -> see the encoding function description.The returned value is the parameter you optionnally defined while the encoding and which isn't crypted.3) .cod files creationTo create a .cod file type : $file.cod = TXTCOD::createcod; The returned value is the file's name (".cod") Requirements: · Perl

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