2. input in the hash algorithm
In a hash algorithm, a function called hash function (say H) is chosen to transform a variable sized input n, and return a fixed size string called the hash value (say h). i.e
H(n) => h
Comparing this to the birthday attacks;
i. the hash function is getting the people's birthdays - H,
ii. the input is each person in the group of people - n,
iii. the hash is the value of the birthday of each person - H(n).
