This object when read returns either 'useInstalled' or
'createBits1024'. 'useInstalled' is returned when
a certificate RSA key already exists on switch.
'createBits1024' is returned when no certificate RSA key
exists on switch.
When written, each value causes the following action:
'useInstalled' - uses currently configured RSA key
already present on the switch.
'createBits512' - deprecated, no longer supported.
'createBits768' - deprecated, no longer supported.
'createBits1024' - specifies the creation of a new RSA
key of 1024-bit length.
'createBits2048' - specifies the creation of a new RSA
key of 2048-bit length.