Barco Athena, User Manual, Page: 48 / 74

5. ICMP
.pem
ICMP
Communicator,
Commander,
Web Commander.
Studios
Device
manufacturer
KDM DCP
Content distributors (Key supplier)
TDL
Barco signed
X.509 device certificate
(PKI CA)
BARCO-ICMP- 0123456789 .pem
QR
0123456789
Image 5-10
Trusted Device List (TDL)
The Goal of the TDL is to maintain timely and accurate information on participating auditoriums so that participating
subscribers can obtain information needed to issue KDMs. The TDL has several data sources: Device manufacturers,
Exhibitors, Deployment Entities, Integrators, Service Providers (interacting with Exhibitors), regional authorities and
Support.
Public Key Infrastructure (PKI)
PKI is a framework for creating a secure method for exchanging information based on public key cryptography. The
foundation of a PKI is the certi
fi cate authority ( CA ), which issues digital certi fi cates that authenticate the identity of or-
ganizations and individuals over a public system such as the Internet. The certi fi cates are also used to sign messages,
which ensures that messages have not been tampered with.
*.pem
Privacy-enhanced Electronic Mail. File format used to distribute digital signed certi fi cates. Base64 encoded DER
certi fi cate, enclosed between "-----BEGIN CERTIFICATE-----" and "-----END CERTIFICATE-----"
Key Delivery Message (KDM)
The security key for each movie is delivered in a unique KDM for each digital cinema server. The security key is
encrypted within the KDM, which means that the delivery of a KDM to the wrong server or wrong location will not work,
and thus such errors cannot compromise the security of the movie. The KDM is a small
fi le, and is typically emailed to
the exhibitor. To create the correct set of KDMs for a site requires knowledge of the digital certi fi cate in the projection
system´s media block.
44 R5906789 ATHENA 16/12/2016