Vivotek SD9161-H-v2 2MP PTZ Network Dome Camera - Manual (Page 147)

VIVOTEK
User's Manual - 147
Publickey mode:
Selecting the Public key mode will bring up the Pairing mode options: Auto, Download, Upload .
Auto Camera will generate a key pair and auto pair public key with the SFTP server.
Download Camera will generate a key pair and download the public key for the user to upload
it to the SFTP server. The supported formats are: ED25519 (default. Elliptic curve
signature scheme Edwards-curve Digital Signature Algorithm; with faster key
creation, encryption and decryption ), RSA ( Rivest–Shamir–Adleman, with greater
portability ), ECDSA ( Elliptic Curve Digital Signature Algorithm ).
Upload Upload the private key here and upload the public key to the SFTP server.
A private key is a guarded secret and it can be stored on disk in an encrypted
form. A passphrase is used in order to decrypt it. It is a login password to the SSH
server, the passphrase is only used to decrypt the private key on the local system.
The passphrase is not transmitted over the network.
When using SFTP, you can authenticate using a public/private SSH key pair instead of a password.
If key authentication is not enabled, you need to specify a password instead. The administrator of the
SFTP server will need to manually add the corresponding public key to the SFTP server.
The key benefit of a key-based authentication is that instead of a using a password, you are less
vulnerable to brute-force attacks and you do not expose valid credentials, if the server has been
compromised.