Classic ASP

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.

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

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

set jks = Server.CreateObject("Chilkat.JavaKeyStore")

oldJksPassword = "existingPassword"
newJksPassword = "newPassword"
jksPath = "/someDir/keyStore.jks"

' Load the Java keystore from a file.
success = jks.LoadFile(oldJksPassword,jksPath)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( jks.LastErrorText) & "</pre>"
    Response.End
End If

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

i = 0
Do While i < numPrivateKeys

    success = jks.ChangePassword(i,oldJksPassword,newJksPassword)
    If (success <> 1) Then
        Response.Write "<pre>" & Server.HTMLEncode( jks.LastErrorText) & "</pre>"
        Response.End
    End If

    i = i + 1
Loop

' Write the JKS using the new password for the JKS file's keyed digest.
success = jks.ToFile(newJksPassword,jksPath)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( jks.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Updated the password for the Java keystore file.") & "</pre>"

%>
</body>
</html>