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I followed these instructions. I edited the common.mak file successfully and when I ran make I get this error:

mohd-arafat-hossain@TUD:~/aircrack-ng-1.1$ make
make -C src all
make[1]: Entering directory `/home/mohd-arafat-hossain/aircrack-ng-1.1/src'
make -C osdep
make[2]: Entering directory `/home/mohd-arafat-hossain/aircrack-ng-1.1/src/osdep'
Building for Linux
make[3]: Entering directory `/home/mohd-arafat-hossain/aircrack-ng-1.1/src/osdep'
make[3]: `.os.Linux' is up to date.
make[3]: Leaving directory `/home/mohd-arafat-hossain/aircrack-ng-1.1/src/osdep'
make[2]: Leaving directory `/home/mohd-arafat-hossain/aircrack-ng-1.1/src/osdep'
gcc -g -W -Wall -O3 -D_FILE_OFFSET_BITS=64 -D_REVISION=0  -Iinclude   -c -o aircrack-ng.o aircrack-ng.c
In file included from aircrack-ng.c:65:0:
crypto.h:12:26: fatal error: openssl/hmac.h: No such file or directory
compilation terminated.
make[1]: *** [aircrack-ng.o] Error 1
make[1]: Leaving directory `/home/mohd-arafat-hossain/aircrack-ng-1.1/src'
make: *** [all] Error 2

What am I supposed to do now?

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up vote 14 down vote accepted

The error says you don't have ssl header files. So just install them.

sudo apt-get install libssl-dev
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Thanks for the assist :) – Mohd Arafat Hossain May 11 '12 at 15:09
    
Thanks man work perfect on my 12.04 .03 LTS server – bemonolit Dec 7 '13 at 19:55
    
When compiling the most important is get the -dev packages of the libraries. – erm3nda Feb 3 '15 at 6:17

Download openssl-1.0.1c.tar.gz and build it twice.

./config  --prefix=/usr/local --openssldir=/usr/local/ssl
make && make install  

./config shared --prefix=/usr/local --openssldir=/usr/local/ssl
make clean
make && make install

In the first time:it will build the *.so lib file.

The second ,it will build the include *.h file.

It's useful.

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2  
Pre built library is already available in repository – Tachyons Oct 7 '12 at 11:05

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