IEEE Power & Energy Magazine - January/February 2016 - 103

Message 1 (App 1 to App 2)

Provider
Message 2 (App 1 to App 3)

Business
Application 2

Business
Application 3

Business
Application 1

Point-to-Multipoint
(Multiple Point-to-Point)
(a)

Provider

Message 1

Business
Application 1

Message 1

Business
Application 2

Message 1

Business
Application 3

Network

Point-to-Multipoint
(Multicast)
(b)

figure 7. Implementation methodologies for point-to-multipoint exchanges: (a) Methodology 1 and (b) Methodology 2.

Transform
Message

Provider

Message 1

Transform
Message

Business
Application 1

Message 3

Message 2

Message 1

Business
Application 2

Business
Application 3

Business
Application 4

ESB

figure 8. An enterprise service bus point-to-multipoint.

message was initiated by application 1 is potentially lost when
messages 2 and 3 are delivered.
Digital signature technology is the mechanism to provide
end-to-end identity establishment, authentication, and tamper
detection. This methodology, when properly applied, protects
all contents of the message payload as well as the message
header. IEC TC57 Working Group 15 has established two basic
technologies for digital signature key management: digital
certificate-based signatures for point-to-point communications
january/february 2016

and group domain of interpretation (GDOI) for point-to-multipoint communications. The GDOI approach allows multiple
applications/providers to authenticate against a key distribution
center (KDC) as part of a group interested in exchanging information. The KDC authenticates all the group members and
supplies them with the same key material for encryption and
signing. The GDOI methodology allows group members to be
authenticated but does not authenticate individual applications
during the actual message exchange.
ieee power & energy magazine

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Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - January/February 2016

IEEE Power & Energy Magazine - January/February 2016 - Cover1
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IEEE Power & Energy Magazine - January/February 2016 - Cover3
IEEE Power & Energy Magazine - January/February 2016 - Cover4
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