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Generate new DSA Key from OpenSSL Parameters File

See more DSA Examples

Generates a new DSA key from an OpenSSL-created parameters file (DER and PEM formats supported). Examples of using OpenSSL to create parameter files are shown here:

openssl dsaparam -outform DER 1024 <  seedData.txt >dsaparam.der

openssl dsaparam 1024 < seedData.txt >dsaparam.pem

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Local $bSuccess = False

; This example requires the Chilkat API to have been previously unlocked.
; See Global Unlock Sample for sample code.

$oDsa = ObjCreate("Chilkat.Dsa")

$bSuccess = $oDsa.GenKeyFromParamsDerFile("dsaparam.der")
If ($bSuccess <> True) Then
    ConsoleWrite($oDsa.LastErrorText & @CRLF)
    Exit
EndIf

; To generate a key from PEM, call GenKeyFromParamsPem 
; (for an in-memory PEM string) or GenKeyFromParamsFilePem
; for a PEM file.

; The public and private keys may now be exported to PEM, DER,
; and XML formatted files.

Local $sPemStr
Local $sXmlStr

; First for the public key...
; The public key never needs to be encrypted.

; Save the public key in PEM format:
$sPemStr = $oDsa.ToPublicPem()
; This example will not check the return value of SaveText...
$bSuccess = $oDsa.SaveText($sPemStr,"dsa_pub.pem")

; Save the public key in DER format:
$bSuccess = $oDsa.ToPublicDerFile("dsa_pub.der")

Local $bPublicOnly = True
; Save to XML
$sXmlStr = $oDsa.ToXml($bPublicOnly)
$bSuccess = $oDsa.SaveText($sPemStr,"dsa_pub.xml")

; ------------------------------------
; Now for the private key....
; ------------------------------------

; Unencrypted PEM:
$sPemStr = $oDsa.ToPem()
$bSuccess = $oDsa.SaveText($sPemStr,"dsa_priv.pem")

; Encrypted PEM:
$sPemStr = $oDsa.ToEncryptedPem("myPassword")
$bSuccess = $oDsa.SaveText($sPemStr,"dsa_privEncrypted.pem")

; DER:
$bSuccess = $oDsa.ToDerFile("dsa_priv.der")

; XML:
$bPublicOnly = False
$sXmlStr = $oDsa.ToXml($bPublicOnly)
$bSuccess = $oDsa.SaveText($sPemStr,"dsa_priv.xml")

ConsoleWrite("Finished!" & @CRLF)