vConfidentiality =
Encryption
ØEncryption key (public/private)
vIntegrity +
Authentication: Electronic Signature
ØN.B. – Thus we have non-repudiation
of origin.
vNon-Repudiation of
Receipt: Electronic Replies
ØCan include the “check sum.”
ØArrived at mailbox or was read?
vProof of date/time
is still a little tricky
ØThere are ways to get around this using reliable third parties.
Security Solutions
Is e-Mail Better than Mail?