Use of an
algorithm to scramble data into a format
that can be read only by reversing the algorithm
In order to
protect data, encryption provides the following assurances:
nData were not modified after the sender transmitted them and before receiver picked them up
nData can only be viewed by their intended recipient (or at their intended destination)
nAll of the data received at intended destination were truly issued by the stated sender and not forged by an intruder