ONE TIME PAD
For the first assignment we created a one time pad.A one-time-pad is a technique where a plaintext is paired with a random secret key.
In this case we generate a random key and we paired it with the message using the xor operator.
This is the function I use to generate and write the random keys into a file:
We use one function to decrypt an encrypt our messages:
Example:
In this example we will encrypt the text "SecretMessage". so we need to generate a key of lenght 13.This command will create a new file called "keys" with our mew key. Now that we have our key we can create our ciphertext:
Now that we have our ciphertext on a file called "messages" the only way to recover the message is by using the same key we use to encrypt the message.
NOTE: This command will also erase the key from the "key" file to ensure we use a key only once
full code at: https://github.com/saflogar/OTP
No pongas archivos respaldo en el repo (tipo algo~ o #algo#).
ResponderEliminarAgrega todas las fuentes consultadas en una bibliografía al final. (Citas estilo wikipedia con números estaría lo ideal.9
Regreso aquí el jueves siguiente para calificar la tarea.
9 = )
ResponderEliminar+ Control over key length as a parameter: ok
ResponderEliminar+ Control over the number of keys as a parameter: ok
+ Automatic key management: mentioned, not shown (1/2)
+ Functional encryption/decryption: symmetric
+ Adequate use cases for example runs: screenshots of text in a terminal... (1/2)
- Spelling: ok
- Grammar: inconsistent use of past and present tenses
- Structure and visual design of the report: ok
- Reference management: entirely absent (-1)
- Programming style: ok, but you should comment more
x English: check
=> 3 out of 5 pts