Quadrox Video Authentication - Manual (Page 8)

Video Authentication Manual 8
Version 4.4 Series
signature message. This message is encrypted by the certificate, unique to each recorder, to
form a digital signature.
WebCCTV supports two formats of digital signature:
.eml – S/MIME standard message like used in digitally signed emails.
.p7m – true PKCS #7 standard signature message. It can be opened by
specialized viewers like Cryptigo’s P7MViewer (http://www.cryptigo.com).
Quadrox has based all of these systems on the open standard technology to prevent
any possibility of security holes or “back doors”. All algorithms that are used are well
known and widely used cryptographic standards, like MD5, SHA-1 and RSA. They
cannot be broken if the key is not known, not even by the people that implemented
them. The certificate is standard (X.509, PKSC #12), as is the digital signature format
(PKCS #7). Apart from the true signature standard that can be viewed by publicly
available specialized viewers, we also provide the signature in a standard email
format (S/MIME format) so that it can be viewed by common email clients like
Outlook Express. Quadrox uses Microsoft’s implementations of these formats and
algorithms, which are validated and certified by the National Institute of Standards
and Technology (NIST).
3.3 Signature & Movie Transportation
The movie file and the signature are transported to the courtroom. They don’t necessarily
have to travel together and the channel can be unsafe (e.g. they can be sent over the Internet).
To save the signature for further transportation, follow the steps below:
Click on the signature you want to save.
Select the save location in the pop up window and click OK.
Saving Digital Signature Screen