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What is the output of encryption?
ciphertext
The encryption algorithm takes two inputs — the plaintext and a key — and produces one output, the ciphertext. A key is a secret that determines the output of the encryption algorithm; different keys will produce different ciphertexts.
What are the two main types of Wi-Fi encryption?
There are three types of wifi encryption protocols: Wired Equivalent Privacy (WEP), Wi-Fi Protected Access (WPA), and Wi-Fi Protected Access Version 2 (WPA2). These encryptions have one thing in common — protecting the data on your network — but the main difference lies in how well they do so.
How to find encryption for input and output?
I will try to write a program that will encrypt the input/string and find out what kind encryption gets me the output, but what is most likely is that its a custom string/key the encryption goes through, as any good encrypted product would be.
What can I do if I have the input and output?
If all you have is the ability to encrypt and decrypt a message, you can try comparing the input and output. Encrypt a string of AAAAAAAB a couple of times, and see if the output is always the same. See if it follows a similar pattern, such as NNNNNNNO. Add another letter; take one away; see what happens to the encrypted data.
How to encrypt and decrypt different messages?
Try to to encrypt and decrypt different messages, to change the input message, the key size, to hard-code the IV, the key and other parameters, switch to CBC mode, and see how the results change. Enjoy learning by playing. Now, let’s give a full example how to use the AES-256-GCM symmetric encryption construction.
How does AES encrypt and decrypt a message?
The randomly generated KDF salt for the key derivation is stored together with the encrypted message and will be used during the decryption. Then the input message is AES-encrypted using the secret key and the output consists of ciphertext + IV (random nonce) + authTag. The final output holds these 3 values + the KDF salt.