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Suppose that someone suggests the following way to confirm that the two of you are both in possession of the same secret key. You create a random bit string the length of the key, XOR it with the key, and send the result over the channel. Your partner XORs the incoming block with the key (which should be the same as your key) and sends it back. You check and if what you receive is your original random string, you have verified that your partner has the same secret key, yet neither of you has ever transmitted the key. Is there a flaw in this scheme?

*Please dont only give me the answer but also explain WHY, maybe use "//" or "*" Important homework assignment

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CPED

Answer:

The given question is discussed below in detail.

OR and XOR are used to make the concepts clear instead of the signs "//" and "*" .

First of all the senders and users key will be analyzed.

I hope it will help you!

Explanation:

Ver imagen CPED
Ver imagen CPED
MrRoyal

The true statement is that the scheme is prone to attacks.

From the question, we understand that:

  • The result when the string and its length are XOR is sent to the partner
  • The partner decodes the message and sends it back

The above highlight shows a complete communication, where:

  • You send K XOR R to your partner
  • Your partner returns R back to you

However, there is a flaw in the scheme

The flaw in the scheme is that, the scheme is prone to attacks.

Where the values that are being communicated are visible to the attacker;

The attacker can then make several computations to alter the code that is being sent

Read more about encryption at:

https://brainly.com/question/14357611

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