Configuring the ECN330-switch
138 1553-KDU 137 365 Uen D 2006-06-16
6.5.4.1 Generating the Host Key Pair
A host public/private key pair is used to provide secure communications
between an SSH client and the ECN330-switch. After generating this key pair,
the host public key must be provided to SSH clients and the client’s public key
imported to the ECN330-switch as described in the preceding section
(Command Usage).
Field Attributes
• Public-Key of Host-Key – The public key for the host.
• RSA (Version 1): The first field indicates the size of the host key (for
example, 1024), the second field is the encoded public exponent
(for example, 65537), and the last string is the encoded modulus.
• DSA (Version 2): The first field indicates that the encryption method
used by SSH is based on the Digital Signature Standard (DSS). The
last string is the encoded modulus.
• Host-Key Type – The key type used to generate the host key pair (that
is, public and private keys). (Range: RSA (Version 1), DSA (Version 2),
Both: Default: Both)
The SSH server uses RSA or DSA for key exchange when the client first
establishes a connection with the ECN330-switch, and then negotiates
with the client to select either DES (56-bit) or 3DES (168-bit) for data
encryption.
• Save Host-Key from Memory to Flash – Saves the host key from RAM
(that is, volatile memory to flash memory). Otherwise, the host key pair
is stored to RAM by default. Note that this item must be selected prior
to generating the host-key pair.
• Generate – This button is used to generate the host key pair. Note that
the host key pair must first be generated before the SSH server can be
enabled on the SSH Server Settings page.
• Clear – This button clears the host key from both volatile memory
(RAM) and non-volatile memory (Flash).
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