README.md

Neural cryptography protocol for key exchange

Implementation of the exchange key protocol described in International Journal of Advanced Research in Computer Science and Software Engineering.

Neural crypto avoids a Diffie-Hellman exchange key protocol from MITM attack.

A summary of the article is in "neural-crypto.pdf".

openSSL

Require openSSL to encyrpt with AES cipher.

Generate key and IV for AES encryption

python run.py -r hebbian -i <input file> -o <output file> -K <nb hidden neurons> -N <nb input neurons> -L <range of weight> -k <key length> -v <iv length>

r : update rules : 'hebbian', 'anti_hebbian' or 'random_walk' key length options : 128, 192, 256 iv length : [0:256] if inputfile is read, aes encryption is executed.

Use with openSSL

if inputfile option not set, use openSSL to encrypt file.

Cipher with AES

openssl enc -aes128 -K <key> -iv <init vector> -in <inputfile> -out <outputfile>
openssl enc -aes192 -K <key> -iv <init vector> -in <inputfile> -out <outputfile>
openssl enc -aes256 -K <key> -iv <init vector> -in <inputfile> -out <outputfile>

Decipher with AES

openssl enc -aes128 -K <key> -iv <init vector> -in <inputfile(enc)> -out <outputfile> -d
openssl enc -aes192 -K <key> -iv <init vector> -in <inputfile(enc)> -out <outputfile> -d
openssl enc -aes256 -K <key> -iv <init vector> -in <inputfile(enc)> -out <outputfile> -d

Examples

echo "hello world" > hello.txt
python run.py -i hello.txt -k 256 -K 20 -N 50 -L 6
cat out.enc
cat decipher.txt