H3C S6812 Series Command Reference Manual page 1956

public-key local export ecdsa
Use public-key local export ecdsa to export a local ECDSA host public key.
Syntax
public-key local export ecdsa [ name key-keyname ] { openssh | ssh2 } [ filename ]
Views
System view
Predefined user roles
network-admin
Parameters
name key-name: Specifies a local ECDSA key pair by its name, a case-insensitive string of 1 to 64
characters. Valid characters are letters, digits, and hyphens (-). If you do not specify a key pair, this
command exports the host public key of the local ECDSA key pair with the default name.
openssh: Exports the host public key in OpenSSH format.
ssh2: Exports the host public key in SSH 2.0 format.
filename: Specifies the name of the file for saving the local host public key. The file name is a string of
case-insensitive characters. The name cannot be dots (.), hostkey, serverkey, dsakey, or ecdsakey,
and cannot start with a slash (/) or contain ./ and ../. The file name can contain 1 to 128 characters.
For more information about file names, see Fundamentals Configuration Guide. If you do not specify
a file name, this command does not export the key to a file but displays the key on the monitor
screen.
Usage guidelines
You can use this command to export a local ECDSA host public key before distributing it to a peer
device.
To distribute a local ECDSA host public key to a peer device:
1. Save the exported ECDSA host public key to a file by using one of the following methods:
Use the public-key local export ecdsa [ name key-name ] { openssh | ssh2 } command

to export the local host public key, and then copy and paste it to a file.
Use the public-key local export ecdsa [ name key-name ] { openssh | ssh2 } filename

command to export the host public key to a file. You cannot export the key to the folder pkey
or its subfolders.
2. Transfer a copy of the file to the peer device, for example, by using FTP in binary mode or TFTP.
For more information about FTP and TFTP, see Fundamentals Configuration Guide.
3. On the peer device, use the public-key peer import sshkey command to import the host
public key from the file.
SSH 2.0 and OpenSSH are different public key formats. Choose the correct format that is supported
by the device where you import the host public key.
Only the ECDSA host public key generated by using the secp256r1 curve can be exported.
Examples
# Export the host public key of the local ECDSA key pair with the default name in OpenSSH format to
the file named key.pub.
<Sysname> system-view
[Sysname] public-key local export ecdsa openssh key.pub
# Display the host public key of the local ECDSA key pair with the default name in SSH 2.0 format.
<Sysname> system-view
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