# Difference of Hash function and Cryptographic Accumulator

What's the difference between a one-way hash function and a cryptographic accumulator?Both of them are one way hash function but the only main difference is accumulator has quasi commutative property. Actually I dont understand that I mean how is it possible a function exists like that?It provides both one way hash function and also quasi commutative. Because in hash function, if change sth, the value of hash is also changing.However, with quasi commutative property, it allows that and the value of hash does not changing. Somebody can explain it in simple way?

• Lack of research on a too broad question Cryptographic Accumulators: Definitions, Constructions and Applications – kelalaka Jan 18 at 6:34
• You should explain why you think they're similar. As it stands, the question reads a bit like "What's the difference between a chicken and a giraffe?" – Maeher Jan 18 at 6:50
• @Maeher Because both of them are one way hash function but the only main difference is accumulator has quasi commutative property. Actually I dont understand that I mean how is it possible a function exists like that?It provides both one way hash function and also quasi commutative. Beucause in hash function, if change sth, the value of hash is also changing. – jhdm Jan 19 at 15:38
• @Maeher @ kelalaka I edited my question – jhdm Jan 19 at 15:39