Visual FoxPro

Load a Private Key from XML Text

Demonstrates the Chilkat PrivateKey.LoadXml method, which loads a private key from XML text. The only argument is the XML string. Supported roots include RSAKeyValue, DSAKeyValue, ECCKeyValue, and Ed25519KeyValue.

Background: XML key representations such as RSAKeyValue come from the .NET/XML-DSIG world, where keys are exchanged as XML elements. This loads that form — the inverse of GetXml — which is handy for interoperating with .NET code or systems built around XML signatures. It is a plaintext format, so protect the XML like any unencrypted key material.

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LOCAL lnSuccess
LOCAL loPrivKey
LOCAL lcXmlText

lnSuccess = 0

*  Demonstrates the PrivateKey.LoadXml method, which loads a private key from XML text.  The only
*  argument is the XML string.  Supported roots include RSAKeyValue, DSAKeyValue, ECCKeyValue,
*  and Ed25519KeyValue.

loPrivKey = CreateObject('Chilkat.PrivateKey')

*  The XML text of a private key (for example as produced by GetXml).
lcXmlText = "<RSAKeyValue><Modulus>...</Modulus><Exponent>AQAB</Exponent>...</RSAKeyValue>"

lnSuccess = loPrivKey.LoadXml(lcXmlText)
IF (lnSuccess = 0) THEN
    ? loPrivKey.LastErrorText
    RELEASE loPrivKey
    CANCEL
ENDIF

? "Loaded a " + loPrivKey.KeyType + " private key."

RELEASE loPrivKey