Oneway Accumulators Decentralised Alternatives To DigitalSignatures

OnewayAccumulators.txt

The combination of these two properties (quasi-commutativity and one-wayness) to develop a one-way uccurnulator
It can be used to provide space-efficient cryptographic protocols for time stamping and membership testing.

one-way hash functions exists if and only if one-way functions exist 
which, in turn, exist if and only if secure signature schemes exist

It has also been shown that the existelice of one-way functions is equivalent 
to the existence of secure pseudo-random number-generators.

A family of one-way accumulators is a family of one-way hash functions each of which is quasi-commutative.