Xbase++

Load an SSH Key from a File (Many Formats Supported)

Demonstrates how to load an SSH public or private key object from a file. The file can be in any of the following formats:

• OpenSSH private key
• OpenSSH public key
• PuTTY private key
• RFC 4716 public key

Xbase++

LOCAL nSuccess
LOCAL oSshkey
LOCAL cStrKey

nSuccess := 0

oSshkey := CreateObject("Chilkat.SshKey")

//  First, use the LoadText convenience method to load a text file (of any SSH key format)
//  into a string:
cStrKey := oSshkey:LoadText("../mySshKeys/myKey.txt")

//  Next, load the key into the SSH key object.

//  If the key is an OpenSSH private key:
//  (In actuality, the From* methods will automatically detect the format and load
//  the key correctly.  For example, if a PuTTY private key is passed to FromOpenSshPrivateKey,
//  it  will still load correctly.)
nSuccess := oSshkey:FromOpenSshPrivateKey(cStrKey)
IF (nSuccess != 1)
    ? oSshkey:LastErrorText
ELSE
    ? "Loaded OpenSSH private key."
    oSshkey:destroy()
    RETURN
ENDIF

//  If the key is an OpenSSH public key:
nSuccess := oSshkey:FromOpenSshPublicKey(cStrKey)
IF (nSuccess != 1)
    ? oSshkey:LastErrorText
ELSE
    ? "Loaded OpenSSH public key."
    oSshkey:destroy()
    RETURN
ENDIF

//  If the key is a PuTTY private key:
nSuccess := oSshkey:FromPuttyPrivateKey(cStrKey)
IF (nSuccess != 1)
    ? oSshkey:LastErrorText
ELSE
    ? "Loaded PuTTY private key."
    oSshkey:destroy()
    RETURN
ENDIF

//  If the key is an RFC 4716 public key:
nSuccess := oSshkey:FromRfc4716PublicKey(cStrKey)
IF (nSuccess != 1)
    ? oSshkey:LastErrorText
ELSE
    ? "Loaded RFC 4716 public key."
ENDIF

oSshkey:destroy()