Signing Symbian/Qt Application in Linux

Signing Symbian/Qt Mobile Applications conventionally has to be done on Windows.
The good news is now it's possible to sign Symbian/Qt mobile applications in Linux-based operating systems such as Ubuntu, with the help of wine.

1. First you need to get a Symbian certificate and key.
   You can get your applications Symbian signed for free and get developer certificates from Ovi Publish.

2. Extract the signsis.exe file from this zip file.
   Source: FExplorer thread
   I recommend to make this file executable so you can run it directly with Wine and not having to prefix "wine" command for launching.
   Running this command on Terminal:
   chmod +x signsis.exe

3. Install Wine.
   In Ubuntu, open Terminal and type:
   sudo apt-get install wine
   

Now you can sign your unsigned SIS application files.

Type this command in Terminal:

wine path/to/signsis.exe <application-file.sis> <certificate.crt> <certificate.key>

If you make signsis.exe executable you can simply type:

wine path/to/signsis.exe <application-file.sis> <certificate.crt> <certificate.key>

Now you can sign any SIS file at will. :-)

For example in my system this is how it looks:

$ /opt/signsis/signsis.exe -s -v messagemerge_qt-4_6_3_m1_0_2_s60_3_1.sis messagemerge_devsigned.sis OVI_10-29-2010.crt OVI_10-29-2010.key

SIGNSIS Version 4, 0, 0, 1
A utility for signing Software Installation (SIS) files.
Copyright (c) 2004 Symbian Software Ltd. All rights reserved.

Signing
fixme:toolhelp:CreateToolhelp32Snapshot Unimplemented: heap list snapshot
fixme:toolhelp:Heap32ListFirst : stub