10-14-2009
the key pair and the host fingerprint are different.
You need to make sure the host key is cached in the registry for the user executing the psftp exe. IOW, you can't test as one user, cache the fingerprint, and then log in as another user, or set up a scheduled task as another user for batch, and expect it to work.
As for the key pair, you'll need that for only for key-based authentication (no password prompt). Look at the docs for PuttyGen:
Using public keys for SSH authentication
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pscp(1) PuTTY tool suite pscp(1)
NAME
pscp - command-line SCP (secure copy) / SFTP client
SYNOPSIS
pscp [options] [user@]host:source target
pscp [options] source [source...] [user@]host:target
pscp [options] -ls [user@]host:filespec
DESCRIPTION
pscp is a command-line client for the SSH-based SCP (secure copy) and SFTP (secure file transfer protocol) protocols.
OPTIONS
The command-line options supported by pscp are:
-V Show version information and exit.
-pgpfp Display the fingerprints of the PuTTY PGP Master Keys and exit, to aid in verifying new files released by the PuTTY team.
-ls Remote directory listing.
-p Preserve file attributes.
-q Quiet, don't show statistics.
-r Copy directories recursively.
-unsafe
Allow server-side wildcards (DANGEROUS).
-v Show verbose messages.
-load session
Load settings from saved session.
-P port
Connect to port port.
-l user
Set remote username to user.
-batch Disable interactive prompts.
-pw password
Set remote password to password. CAUTION: this will likely make the password visible to other users of the local machine (via com-
mands such as `w').
-1 Force use of SSH protocol version 1.
-2 Force use of SSH protocol version 2.
-C Enable SSH compression.
-i path
Private key file for authentication.
-scp Force use of SCP protocol.
-sftp Force use of SFTP protocol.
MORE INFORMATION
For more information on pscp it's probably best to go and look at the manual on the PuTTY web page:
http://www.chiark.greenend.org.uk/~sgtatham/putty/
BUGS
This man page isn't terribly complete. See the above web link for better documentation.
PuTTY tool suite 2004-03-24 pscp(1)