Manual Voice Server Espero © Vidicode 2009
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19
Appendix C Encrypted recording
Voice Servers used as Call Recorders feature a system for encrypted
recording whereby IC cards called CryptoCards are used as a key.
Encrypted recordings are made to prevent unauthorized playback of and
listening to recordings. The system is very safe and recommended when
some sort of security breach is possible. Examples of such a situation are:
•
The Voice Server is connected to a network or even internet and
there are reasons to think that password security is not enough.
•
The Voice Server can be accessed and operated by persons who are
not allowed to listen to all recordings and there are reasons to
think that password security is not enough.
•
Privacy is considered to be an issue and therefore strict procedures
must be maintained around listening to the recordings.
The CryptoCard is a chip card that holds the key to the encryption and
decryption. Encrypted recordings can only be played back together with
the original or a matching CryptoCard and its password.
The desktop model of the Voice Server is equipped with an external card
reader specifically for this purpose; it is located on the left front side of
the device.
The 19” model has an internal reader or SIM card reader (or both) and
the case must be opened to place the card or SIM card. The idea behind
this is that a recorder built into a 19” rack normally will be accessed
from remote only. It is a drawback rather than an advantage when the
card can easily be removed. For the 19” model the Privacy Card is
recommended which means that playback on the recorder with the
internal card is not possible and the recordings can only be reproduced
on a PC with the matching CryptoCard.
CryptoCards can be obtained from your Vidicode products supplier. The
use of the CryptoCard encryption function is enabled in the Recorder
settings menu. See § 4.6 to enable the use of a CryptoCard.
19.1
Several types of CryptoCard
As mentioned there are cards that can be used for recording and for
playback and there are cards that can be used for recording only, the so
called “Privacy Cards”. It is important to understand the difference.
•
When it is important to be able to listen to recordings on the Voice
Server, use the standard CryptoCard.
•
When you prefer that it is not possible to listen to recordings on
the Voice Server, use the CryptoCard Privacy card.
It is also possible to supply sets of individual cards with a “Master Card”
that can be used to decode all the individual cards. The application is
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