I am trying to learn hashing and for this i am solving a problem in which there are n array's of 0 and 1 and given two arrays we have two tell whether they are equal or not.

I have heard that this problem can be solved using hashing but i am unable to come up with a hash function which can give a unique hash value for a given permutation of 0 and 1 in form of array.

Can someone suggest me such a hash function and also how to prove that it is valid.