SSH key exchange (KEX) algorithms in FIPS 140-3 mode, CC-NDcPP mode, and FIPS 140-3 and CC-NDcPP mode

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diffie-hellman-group16-sha512

diffie-hellman-group18-sha512

diffie-hellman-group14-sha256

Tip

After upgrading your 9.1 appliance to a newer version, reconfigure your SSH client and SSH server cipher list to the high-security mode.

xxxx-cms9500 (config) # compliance apply standard ?
<standard>
fips                 FIPS (Federal Information Processing Standard)
cc-ndcpp             CC-NDcPP (Common Criteria Network Device Protection Profile)
all                  All supported standards 

xxx-cms9500 (config) # compliance apply standard all ?
<cr>                 
cipher-level         Specify a cipher list security level to apply 

xxx-cms9500 (config) # compliance apply standard all cipher-level ?
<cipher-level>
compliant-security   Configure all security certified standards-compliant ciphers
high-security        [initial default] Configure only high security certified standards-compliant ciphers (no CBC)
previous             Reapply with the previously specified cipher security level (high-security if you just upgraded to 10.0)

xxx-cms9500 (config) #

In compliant-security mode, only DH Group 14 is available.