System Management Commands

 

 

 

4

 

Table 4-16 show ssh - display description (Continued)

 

 

 

 

Field

 

Description

 

Encryption

 

The encryption method is automatically negotiated between the client and server.

 

 

 

Options for SSHv1.5 include: DES, 3DES

 

 

 

Options for SSHv2.0 can include different algorithms for the client-to-server (ctos)

 

 

 

and server-to-client (stoc):

 

 

 

aes128-cbc-hmac-sha1

 

 

 

aes192-cbc-hmac-sha1

 

 

 

aes256-cbc-hmac-sha1

 

 

 

3des-cbc-hmac-sha1

 

 

 

blowfish-cbc-hmac-sha1

 

 

 

aes128-cbc-hmac-md5

 

 

 

aes192-cbc-hmac-md5

 

 

 

aes256-cbc-hmac-md5

 

 

 

3des-cbc-hmac-md5

 

 

 

blowfish-cbc-hmac-md5

 

 

 

Terminology:

 

 

 

DES – Data Encryption Standard (56-bit key)

 

 

 

3DES – Triple-DES (Uses three iterations of DES, 112-bit key)

 

 

 

aes – Advanced Encryption Standard (160 or 224-bit key)

 

 

 

blowfish – Blowfish (32-448 bit key)

 

 

 

cbc – cypher-block chaining

 

 

 

sha1 – Secure Hash Algorithm 1 (160-bit hashes)

 

 

 

md5 – Message Digest algorithm number 5 (128-bit hashes)

 

show public-key

This command shows the public key for the specified user or for the host.

Syntax

show public-key [user [username] host]

username – Name of an SSH user. (Range: 1-8 characters)

Default Setting

Shows all public keys.

Command Mode

Privileged Exec

Command Usage

If no parameters are entered, all keys are displayed. If the user keyword is entered, but no user name is specified, then the public keys for all users are displayed.

When an RSA key is displayed, the first field indicates the size of the host key (e.g., 1024), the second field is the encoded public exponent (e.g., 35), and the last string is the encoded modulus. When a DSA key is displayed, the first field indicates that the encryption method used by SSH is based on the Digital Signature Standard (DSS), and the last string is the encoded modulus.

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SMC Networks SMC8150L2 manual Terminology, Syntax Show public-key user username host