Write a Python script with Linux using the Scapy packet crafting package. The sc

Question

Write a Python script with Linux using the Scapy packet crafting package.

The script will do the following:

a. Create an ESP payload using crypt-algo=AES-CBC, and auth-algo=HMAC-MD5-96
b. Encrypt the payload using crypt-key
c. Decrypt the encrypted payload, and verify
d. Sign the payload using auth-key
e. Verify the signature by decrypting it

Run the script, make sure you can run it without error.

Explanation / Answer

>>> ip/TCP() >>> tcp=TCP(sport=1025, dport=80) >>> (tcp/ip).show() ###[ TCP ]### sport= 1025 dport= www seq= 0 ack= 0 dataofs= None reserved= 0 flags= S window= 8192 chksum= None urgptr= 0 options= {} ###[ IP ]### version= 4 ihl= None tos= 0x0 len= None id= 1 flags= frag= 0 ttl= 64 (...)

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