Fingerprint SFTP connection variable assigned PowerShell :: Support Forum

Madeproel Guest

Fingerprint SFTP connection variable assigned PowerShell

2022-08-31 10:27

Hello,

I have a PowerShell script in which the credentials are set dynamically via variables. For hostname, username, password this works. But not for the fingerprint. I always get the following message:

New-Object : The specified value is invalid, or the property is read-only. Change the value and repeat the operation.

Here is an excerpt of my script. The values was replaced by "xxxx".

function getCreds(){
    $creds=[PSCustomObject]@{
        hostname = ''
        username = ''
        pwd = ''
        fingerprint = ''   
    }
    $creds.hostname = 'xxxx'
    $creds.username = 'xxxx'
    $creds.pwd = 'xxxx'
    $creds.fingerprint = 'ssh-rsa 1024 xxxx'
    return $creds
}
 
function transferFile($creds){
    $sessionOptions = New-Object WinSCP.SessionOptions -Property @{
        Protocol = [WinSCP.Protocol]::Sftp
        HostName = $creds.hostname
        UserName = $creds.username
        Password = $creds.pwd
        SshHostKeyFingerprint = $creds.fingerprint
    }
}
$creds=getCreds()
transferFile($creds)

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martin◆ Site Admin
Joined:: 2002-12-10
Posts:: 41,441
Location:: Prague, Czechia

Re: Fingerprint SFTP connection variable assigned PowerShell

2022-09-01

See SSH host key/TLS host certificate fingerprint “…” does not match pattern “…”

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Paul Martell-Mead Guest

Same here

2023-01-31 21:09

I am seeing the exact same behaviour here.

I have an INI file containing the settings for the script which reads key/value pairs into PowerShell variables. All parameters work fine this way except SshHostKeyFingerprint. I can use my SshHostKeyFingerprint value hard-coded in the script and it works fine, so this proves it isn't an issue with the actual value (which is what the above answer implies).

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