rijndael

Makefile

SOURCE=http://www.efgh.com/software/rijndael.txt                                                                                                                                                                   
 
DEFAULT: encrypt decrypt
 
clean:
  rm -f encrypt decrypt rijndael.c rijndael.h rijndael.txt encrypt.c decrypt.c
 
encrypt: encrypt.c rijndael.c rijndael.h
decrypt: decrypt.c rijndael.c rijndael.h
 
rijndael.txt:
  wget $(SOURCE)
 
rijndael.h: rijndael.txt
  cat -n rijndael.txt | grep "===" | grep -o "[0-9]\+" | tr "\n" " " | perl -pne 's/^(\d+) (\d+) (\d+) (\d+).*$$/($$4+1).",\$$"/e' | xargs -I{} sed -n '{}p' rijndael.txt > rijndael.h
 
rijndael.c: rijndael.txt
  cat -n rijndael.txt | grep "===" | grep -o "[0-9]\+" | tr "\n" " " | perl -pne 's/^(\d+) (\d+) (\d+) (\d+).*$$/($$3+1).",".($$4-1)/e' | xargs -I{} sed -n '{}p' rijndael.txt >rijndael.c
 
decrypt.c: rijndael.txt
  cat -n rijndael.txt | grep "===" | grep -o "[0-9]\+" | tr "\n" " " | perl -pne 's/^(\d+) (\d+) (\d+) (\d+).*$$/($$1+1).",".($$2-1)/e' | xargs -I{} sed -n '{}p' rijndael.txt > decrypt.c
 
encrypt.c: rijndael.txt
  cat -n rijndael.txt | grep "===" | grep -o "[0-9]\+" | tr "\n" " " | perl -pne 's/^(\d+) (\d+) (\d+) (\d+).*$$/($$2+1).",".($$3-1)/e' | xargs -I{} sed -n '{}p' rijndael.txt > encrypt.c