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Write in the blank the name of the assumption that if broken will make Diffie-Hellman unsecure...

Write in the blank the name of the assumption that if broken will make Diffie-Hellman unsecure and easily breakable. __________________

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Answer #1

The cases in which Diffie-Hellman become unsecure and easily breakable are:-

  1. There are degenerate cases in which the protocol doesn’t work (i.e. it can be broken). For example, when g^ x or g^y equals one, the shared secret key becomes 1. Since the communication channel is public anybody can detect this anomaly.
  2. If one of x and y can be easily determined, the protocol can be broken. For example, if x equals 1 then g^z = g which any observant attacker will be able to detect.
  3. The pseudo-random numbers must be chosen extremely carefully because systems can be broken if inadequate pseudorandom functions or badly chosen seed are used.

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