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Top Forums Programming Write own decryption application Post 302492704 by caciing_help on Tuesday 1st of February 2011 08:10:48 AM
Old 02-01-2011
Write own decryption application

Hi ,

I need some help as I dont know where to start. I need to create a unix decryption application.

The information I have been given is this so far:

the specification of the encryption process is:

NET 2 Cryptography classes.

RijndaelManaged encryption algorithm

SHA512Managed class for hashing keys with a blocksize of 128 and a 32 byte key. The HashSize property of the algorithm is 512 and it generates a 64 byte hash key, but then it only uses the first 32 bytes as the key.


not sure where i need to start. Can someone point me in the right direction please.
 

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extract_font_range(3alleg4)					  Allegro manual				       extract_font_range(3alleg4)

NAME
extract_font_range - Extracts a range of characters from a font. Allegro game programming library. SYNOPSIS
#include <allegro.h> FONT *extract_font_range(FONT *f, int begin, int end) DESCRIPTION
This function extracts a character range from a font and returns a new font that contains only the range of characters selected by this function. You can pass -1 for either the lower or upper bound if you want to select all characters from the start or to the end of the font. Example: FONT *myfont; FONT *capitals; FONT *fontcopy; ... /* Create a font of only capital letters */ capitals = extract_font_range(myfont, 'A', 'Z'); /* Create a copy of the font */ fontcopy = extract_font_range(myfont, -1, -1); ... destroy_font(capitals); destroy_font(fontcopy); RETURN VALUE
Returns a pointer to the new font or NULL on error. Remember that you are responsible for destroying the font when you are finished with it to avoid memory leaks. SEE ALSO
get_font_range_begin(3alleg4), get_font_range_end(3alleg4), merge_fonts(3alleg4), transpose_font(3alleg4), exfont(3alleg4) Allegro version 4.4.2 extract_font_range(3alleg4)
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