APC Battery Management System User Manual download pdf (Page 128)

USER’S GUIDE

Battery Management System

121

– This method does not include the browser-based authentication

provided by a CA certificate (a certificate signed by a Certificate

Authority) as Methods 2 and 3 provide. There is no CA Certificate

cached in the browser. Therefore, whenever you log on to the

Battery Management System, the browser generates a security

alert, indicating that a certificate signed by a trusted authority is not

available and asking if you want to proceed.

– The default server certificate on the Battery Management System

has the Management Card’s serial number in place of a valid

common name (the DNS name or the IP address of the

Management Card). Therefore, although the Battery Management

System can control access to its Web interface by user name,

password, and account type (e.g., Administrator, Device Manager,

or Read-Only User), the browser cannot authenticate what master

controller’s Management Card is sending or receiving data.

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

when setting up an SSL session is only 768 bits. (The public key

used in Methods 2 and 3 is 1024 bits, providing more complex

encryption and consequently a higher level of security.)

1 2 ... 123 124 125 126 127 128 129 130 131 132 133 ... 193 194

No comments

APC Battery Management System User Manual Page 128