Why do you need to hash 2 random numbers and a key instead of hashing using only one random number?
I have c1 and c2 as random numbers. I have 1000 keys. I use the random number generated from the sender, c1, to hash the a non-repeating and secured key and i can send it back to the sender for verification. But why do i need to use another random number c2, generated by myself, on top of c1+key to send it to the sender?
Why do you need to hash 2 random numbers and a key instead of hashing using only one random number?
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I have c1 and c2 as random numbers. I have 1000 keys. I use the random number generated from the sender, c1, to hash the a non-repeating and secured key and i can send it back to the sender for verification. But why do i need to use another random number c2, generated by myself, on top of c1+key to send it to the sender?