(Visual FoxPro) Change Password for Java KeyStore File

Demonstrates how to load a Java keystore, change the password, and save using the new password. If the Java keystore contains only trusted root certificates, then it's simply a matter of loading the JKS with the existing password, and then saving with a new password. If the JKS contains private key entries, then each private key entry must be re-keyed using the new password by calling the ChangePassword method.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL loJks
LOCAL lcOldJksPassword
LOCAL lcNewJksPassword
LOCAL lcJksPath
LOCAL lnSuccess
LOCAL lnNumPrivateKeys
LOCAL i

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

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.JavaKeyStore')
loJks = CreateObject('Chilkat.JavaKeyStore')

lcOldJksPassword = "existingPassword"
lcNewJksPassword = "newPassword"
lcJksPath = "/someDir/keyStore.jks"

* Load the Java keystore from a file.
lnSuccess = loJks.LoadFile(lcOldJksPassword,lcJksPath)
IF (lnSuccess <> 1) THEN
    ? loJks.LastErrorText
    RELEASE loJks
    CANCEL
ENDIF

* If the JKS contains private key entries, then each
* must be re-keyed with the new password by calling ChangePassword.
lnNumPrivateKeys = loJks.NumPrivateKeys

i = 0
DO WHILE i < lnNumPrivateKeys

    lnSuccess = loJks.ChangePassword(i,lcOldJksPassword,lcNewJksPassword)
    IF (lnSuccess <> 1) THEN
        ? loJks.LastErrorText
        RELEASE loJks
        CANCEL
    ENDIF

    i = i + 1
ENDDO

* Write the JKS using the new password for the JKS file's keyed digest.
lnSuccess = loJks.ToFile(lcNewJksPassword,lcJksPath)
IF (lnSuccess <> 1) THEN
    ? loJks.LastErrorText
    RELEASE loJks
    CANCEL
ENDIF

? "Updated the password for the Java keystore file."

RELEASE loJks