Chapter 8.5, Problem 71E

To determine

To writing:

The internet or some other reference source to research a few current real life

Explanation of Solution

Given:

Time stamping uses an encryption model called a blind signature scheme

Concept used:

Time stamping is very similar to sending a registered letter through the u.s. mail but provides an additional level of proof

Calculation:

Time stamping :- time stamping is a technique that can certify that a certain electronic document or communication existed or was delivered at a certain time

Time stamping uses an encryption model called a blind signature scheme

Electronic money:- the definition of electronic money (also called electronic cash or digital cash) is a term that is still evolving

Transactions carried out electronically with a net transfer of funds from one party to another party