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Change Password for Java KeyStore File

See more Java KeyStore (JKS) Examples

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. Go

    success := false

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

    jks := chilkat.NewJavaKeyStore()

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

    // Load the Java keystore from a file.
    success = jks.LoadFile(oldJksPassword,jksPath)
    if success != true {
        fmt.Println(jks.LastErrorText())
        jks.DisposeJavaKeyStore()
        return
    }

    // 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
    for i < numPrivateKeys {

        success = jks.ChangePassword(i,oldJksPassword,newJksPassword)
        if success != true {
            fmt.Println(jks.LastErrorText())
            jks.DisposeJavaKeyStore()
            return
        }

        i = i + 1
    }

    // Write the JKS using the new password for the JKS file's keyed digest.
    success = jks.ToFile(newJksPassword,jksPath)
    if success != true {
        fmt.Println(jks.LastErrorText())
        jks.DisposeJavaKeyStore()
        return
    }

    fmt.Println("Updated the password for the Java keystore file.")

    jks.DisposeJavaKeyStore()