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DSA Generate Key

See more DSA Examples

Generates a DSA public/private key pair and saves to PEM and DER file formats (both encrypted and non-encrypted).

An encrypted DSA PEM looks like this:

-----BEGIN DSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: DES-EDE3-CBC,9DAFD5C4CD62A5D0

QwDdp66sB0qKXQli7FbVcKL/eo3wu7kGRlV2sI8XbkNa1RTLiwnwTWDB0dqyWRQ8
...
Bx0HVfxKiNgCbL6BQEnYD+GOmMcckuj9Uhgloe/YuXCIDJBGhjUt/li3hvR/PXeC

V2xxNl1XKBE88njqi+UXt4vjGVNLpvXM
-----END DSA PRIVATE KEY-----

AutoIt

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")

; Call GenKey to generate a new DSA key.
; The number of bits should be at least 1024 and a multiple
; of 64.   Typical values are either 1024 or 2048.
; DSA key generation is compute intensive and may take
; a short while to complete.
$bSuccess = $oDsa.GenKey(2048)
If ($bSuccess <> True) Then
    ConsoleWrite($oDsa.LastErrorText & @CRLF)
    Exit
EndIf

; Extract the private and public parts to PEM or DER format
; and save to 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 = $oDsa.SaveText($sXmlStr,"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 = $oDsa.SaveText($sXmlStr,"dsa_priv.xml")

ConsoleWrite("Finished!" & @CRLF)