Xbase++

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 nSuccess
LOCAL oPrivKey
LOCAL cXmlText

nSuccess := 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.

oPrivKey := CreateObject("Chilkat.PrivateKey")

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

nSuccess := oPrivKey:LoadXml(cXmlText)
IF (nSuccess == 0)
    ? oPrivKey:LastErrorText
    oPrivKey:destroy()
    RETURN
ENDIF

? "Loaded a " + oPrivKey:KeyType + " private key."

oPrivKey:destroy()