Verification Algorithms¶
Verification Algorithms are hashing algorithms that are generated and sent with every message from pychat. In order to
use verification algorithms, the -v flag must be set on all clients along with the same verification algorithm being
selected on each system. When each message is sent, a hash will be generated and appended to the beginning of each
message. Upon receival, pychat will decrypt and verify the message against the hashing algorithm. If the hashing fails
a warning message will be printed to console before the original message is printed. Regardless of whether the
hash is valid or not, the original message will always be printed.
Below lists all options that are currently implemented in pychat
MD2¶
Verify message integrity using MD2 hashing algorithm
Example¶
python3 pychat.py -h localhost -p 7000 -lp 8000 -u bert -a CaesarCipher -v MD2
MD4¶
Verify message integrity using MD4 hashing algorithm
Example¶
python3 pychat.py -h localhost -p 7000 -lp 8000 -u bert -a CaesarCipher -v MD4
MD5¶
Verify message integrity using MD5 hashing algorithm
Example¶
python3 pychat.py -h localhost -p 7000 -lp 8000 -u bert -a CaesarCipher -v MD5
SHA1¶
Verify message integrity using SHA1 hashing algorithm
Example¶
python3 pychat.py -h localhost -p 7000 -lp 8000 -u bert -a CaesarCipher -v SHA1
SHA224¶
Verify message integrity using SHA224 hashing algorithm
Example¶
python3 pychat.py -h localhost -p 7000 -lp 8000 -u bert -a CaesarCipher -v SHA224
SHA256¶
Verify message integrity using SHA256 hashing algorithm
Example¶
python3 pychat.py -h localhost -p 7000 -lp 8000 -u bert -a CaesarCipher -v SHA256