APC Automatic Disconnect Switch Betriebsanweisung PDF herunterladen (Seite 132)

USER’S GUIDE

AUTOMATIC TRANSFER SWITCH

129

This method has the following advantages and disadvantages.

• Advantages:

– Before they are transmitted, the user name and password for

Automatic Transfer Switch access and all data to and from the

Automatic Transfer Switch are encrypted.

– The length of the public key (RSA key) that is used for encryption

when setting up an SSL session is 1024 bits, providing more

complex encryption and consequently a higher level of security than

the public key used in Method 1. (This longer encryption key is also

used in Method 3.)

– The server certificate that you upload to the Automatic Transfer

Switch enables SSL to authenticate that data are being received

from and sent to the correct Automatic Transfer Switch. This

provides an extra level of security beyond the encryption of the user

name, password, and transmitted data.

– The root certificate that you install to the browser enables the

browser to authenticate the Automatic Transfer Switch’s server

certificate to provide additional protection from unauthorized access.

• Disadvantage:

Because the certificates do not have the digital signature of a

commercial Certificate Authority, you must load a root certificate

individually into the certificate store (cache) of each user’s

browser. (Browser manufacturers already provide root certificates

for commercial Certificate Authorities in the certificate store within

the browser.)

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APC Automatic Disconnect Switch Betriebsanweisung Seite 132