R2511-HP MSR Router Series Security Configuration Guide(V5)

393
Figure 130 SSL protocol stack
• SSL record protocol—Fragments data to be transmitted, computes and adds MAC to the data, and
encrypts the data before transmitting it to the peer end.
• SSL handshake protocol—Negotiates the cipher suite to be used for secure communication
(including the symmetric encryption algorithm, key exchange algorithm, and MAC algorithm),
securely exchanges the key between the server and client, and implements identity authentication
of the server and client. Through the SSL handshake protocol, a session is established between a
client and the server. A session consists of a set of parameters, including the session ID, peer
certificate, cipher suite, and master secret.
• SSL change cipher spec protocol—Used for notification between the client and the server that the
subsequent packets are to be protected and transmitted based on the newly negotiated cipher suite
and key.
• SSL alert protocol—Enables the SSL client and server to send alert messages to each other. An alert
message contains the alert severity level and a description.
FIPS compliance
Table 20 shows the support of devices for the FIPS mode that complies with NIST FIPS 140-2 requirements.
Support for features, commands, and parameters might differ in FIPS mode and non-FIPS mode. For
more information about FIPS mode, see Security Configuration Guide.
Table 20 Hardware and FIPS mode compatibility matrix
Hardware FIPS mode
MSR900 No.
MSR93X No.
MSR20-1X No.
MSR20 Yes.
MSR30 Yes (except the MSR30-16).
MSR50 Yes.
MSR1000 Yes.
Configuration task list
Task Remarks
Configuring an SSL server policy Required.
Configuring an SSL client policy Optional.