Security concerns are important in ebusiness because you want to ensure that transactions:
Are accessible only to sender and receiver (privacy - confidentiality)
Have not been changed during transmission (integrity)
Can be verified by the receiver as having come from the sender (authenticity)
The sender knows that the receiver is genuine (non- fabrication)
The sender cannot deny he or she sent it (non- repudiation)
I. Security, anonymity and privacy on the net
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