Question: ( 1 2 pts ) Explain the following on hash functions. ( a ) When we talk about security of a hash function, what do

(12pts) Explain the following on hash functions.
(a) When we talk about security of a hash function, what do we refer to?
One wayness, second preimage ressistance, collision ressistance.
(b) What is the main advantage of MD5 over SHA1?
Speed.
(c) Give two applications of hash functions.
Authentication, stream ciphers.
(12pts) Explain the following on hash functions. (a) When we talk

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