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Sign Your Unsigned Application

Posted In: . By dr_adam

Advanced Symbian smartphone users must have installed 3rd. party external applications (SiS files) on their phones which are similar but a miniature form of the normal software packages that we commonly install on our computers ourselves. I guess many times you have come across some applications developed by individual mobile software developers that needs to be self-signed. What is this self-signing and how to do it? Read on and do as suggested below:
Every Symbian (including the series60 version 3 OS) application needs to be signed in some way so that the phone can confirm its authenticity and it came from the intended developer and is not a malware or virus of some sort. The Symbian OS (v3 specially) has very good security measures and requirement for digitally signed packages (.sis files) is one of them.
Say, you come across an app. in development at a forum and it’s in beta or pre-release stage and has not been certified by nokia; but you want to try it out at that moment. Simply trying to install the unsigned app. will fail. What you need todo is to generate a developer certificate for your phone IMEI number and use it to digitally sign the unsigned app. so that it gets installed on the device successfully.
Here’s how you can generate your digital certificate and sign your unsigned Symbian application successfully:
Softwares Required :
Developer Certificate Request Tool [ Download ]
Sign SiS Tool [ Download ]
Generating a Developer Certificate :
- Register and create an account at SymbianSigned.com
- Make a directory on your PC. e.g.- c:\cert
- Install Developer Certificate Request Tool.
- Launch the above program.
– Step1: Enter “c:\cert\mycert.csr” in the textbox and click “Next”.
– Step2: Set ACS pub id available > NO, Type “c:\cert\mycert.key” in private key file textbox and “mycert” as password. Click Next.
– Step3: Fill out your location details accordingly. Click Next.
– Step4: Add your phone IMEI (type *#06# on your phone), Press Ctrl+A to select all capabilities and click “Add”. Click Next.
– Click “Finish” and “Close”.
We have generated certificate request file (mycert.csr) which will help us acquire a developer certificate (mycert.cer) to sign our unsigned files with.
- Login to SymbianSigned.com with the account info you used earlier while registering.
- Click “My Symbian Signed” Tab.
- Click “Developer Certificates” in left menu, then Click “Request” link below it.
- Type in the anti-robot security code and browse to select “c:\cert\mykey.csr” file and click “Send”.
- Your certificate has been generated. Click “Download” button and save the file as “c:\cert\mycert.cer”
So, you are ready to sign your unsigned application now!
NOTE : Developer certificates have a validity of 6 months only and works only on the phone with matching IMEI number you used while creating certificate request. You can reuse this certificate to sign other files later if required.
Finally, the actual signing…! Well, there are many ways to sign the unsigned file including running a Python script…he he, OK…I’m now showing you the simplest way with a special GUI program made solely for this purpose.
Signing the Application :
- Unzip the Sign SiS Tool you downloaded into “c:\cert”.
- Run the SignSiSUI.exe , enter the data as shown below and click “Sign It”. If everything goes well, you should get a message and a “appname.signed.sis” file would be created in “c:\cert”. You can now install this SiS file onto your phone.
Whoa! It’s finally signed.
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Operating Frequency
WCDMA2100 (HSDPA), EGSM900, GSM850/1800/1900 MHz (EGPRS)
Automatic switching between bands and modes
Volume: 90 cc
Weight: 120 g
Length: 99 mm
Width: 53 mm
Thickness (max): 21 mm
Memory Functions
Up to 160 MB* internal dynamic memory for messages, ringing tones, images, video clips, calendar notes, to-do list and applications
Memory card slot supporting up to 4 GB microSD memory cards
Power Management
Battery: Nokia Battery (BL-5F) 950mAH
Talk time: up to 160 min (WCDMA), up to 240 min (GSM)*
Stand-by time: up to 200 hours (WCDMA), up to 225 hours (GSM)*
Large 2.6" QVGA (240 x 320 pixels) TFT display with ambient light detector and up to 16 million colors
User Interface
Operating system: S60 software on Symbian OS
User Interface: S60 3rd edition
Dedicated Media Keys
Multimedia Menu
Active standby screen
Call Management
Contacts: advanced contacts database with support for multiple phone and e-mail details per entry, also supports thumbnail pictures and groups
Speed dialing
Logs: keeps lists of your dialed, received, and missed calls
Automatic redial
Automatic answer (works with compatible headset or car kit only)
Supports fixed dialing number, which allows calls only to predefined numbers
Conference call
Nokia Push to talk (PoC)
Voice Features
Speaker independent name dialing (SIND)
Voice commands
Voice recorder
Talking ringtone
Integrated hands-free speaker
Text messaging: supports concatenated SMS, picture messaging, SMS distribution list
Multimedia messaging: combine image, video, text, and audio clip and send as MMS to a compatible phone or PC; use MMS to tell your story with a multi-slide presentation
Automatic resizing of your megapixel images to fit MMS (max 300 KB size depending on the network)
Predictive text input: support for all major languages in Europe and Asia-Pacific
Data Transfer
WCDMA 2100 (HSDPA) with simultaneous voice and packet data (PS max speed UL/DL= 384/3.6MB, CS max speed 64kbps)
Dual Transfer Mode (DTM) support for simultaneous voice and packet data connection in GSM/EDGE networks. Simple class A, multi slot class 11, max speed DL/UL: 177.6/118.4 kbits/s
EGPRS class B, multi slot class 32, max speed DL/UL= 296 / 177.6 kbits/s
*Actual achieved speeds may vary depending on network support.
Digital Services
Java™ and Symbian applications available from Nokia Software Market

Imaging and Video
Up to 5 megapixel (2592 x 1944 pixels) camera, Carl Zeiss Optics, Tessar™ lens, MPEG-4 VGA video capture of up to 30 fps
Direct connection to compatible TV via Nokia Video Connectivity Cable (CA-75U, included in box) or wireless LAN/UPnP
Front camera, CIF (352 x 288) sensor
Video call and video sharing support (WCDMA network services)
Integrated flash
Digital stereo microphone
Flash modes: on, off, automatic, redeye reduction
Rotating gallery
Online album/blog: photo/video uploading from gallery
Nokia Lifeblog 2.0 support
Video and still image editors
Movie director for automated video production
Mobile Video
Video resolutions: up to VGA (640x480) at 30 fps
Audio recording: AAC stereo
Digital video stabilization
Video clip length: limited by available memory
Video file format .mp4 (default), .3gp (for MMS)
White balance: automatic, sunny, cloudy, incandescent, fluorescent
Scene: automatic, night
Color tones: normal, sepia, black & white, negative, vivid
Zoom: Digital up to 10x (VGA up to 4x)
Mobile Photography
Image resolution: up to 5 megapixel: (2592 x 1944 pixels)
Still image file format: JPEG/EXIF
Auto focus
Auto exposure - center weighted
Exposure compensation: +2 ~ -2EV at 0.5 step
White balance: automatic, sunny, cloudy, incandescent, fluorescent
Scene: automatic, user, close-up, portrait, landscape, sports, night, night portrait
Color tone: normal, sepia, black & white, negative, vivid
Zoom: Digital up to 20x (5 megapixel up to 6x)
Camera Specifications
Sensor: CMOS, 5 megapixel (2592 x 1944)
Carl Zeiss Optics: Tessar™ lens
Focal length 5.6 mm
Focus range 10 cm ~ infinity
Macro focus distance 10-50 cm
Shutter speed: Mechanical shutter: 1/1000~1/3 s

Music Features
Digital music player - supports MP3/AAC/AAC+/eAAC+/WMA/M4A with playlists and equalizer.
Integrated handsfree speaker
OMA DRM 2.0 & WMDRM support for music
Stereo FM radio (87.5-108MHz /76-90MHz)
Visual Radio
Listen to music and interact with your favorite radio stations
Find out what song is playing, who sings it, and other artist information
Enter contests and answer surveys, vote for your favorite songs
Find out more about Visual Radio

Built-in GPS
Easy-to-use e-mail client with attachment support for images, videos, music and documents
Compatible with Nokia Wireless Keyboard (sold separately)
Nokia Web Browser with Mini map
Digital home
Play video, music and photos on home media network - compatible TV, stereo and PC over WLAN/UPnP
Java Applications
Java MIDP 2.0, CLDC 1.1 (Connected Limited Device Configuration (J2ME))
Over-the-air download of Java-based applications and games
Other Applications
Personal Information Management (PIM)
Advanced S60 PIM features including calendar, contacts, to-do list, and PIM printing
Settings Wizard for easy configuration of e-mail, push to talk and video sharing.
Data transfer application for transfer of PIM information from other compatible Nokia devices.
Wlan wizard
Integrated wireless LAN (802.11 b/g) and UPnP (Universal Plug and Play)
Integrated Bluetooth wireless technology v.2.0 EDR
USB 2.0 via Mini USB interface and mass storage class support to support drag and drop functionality
3.5 mm stereo headphone plug and TV out support (PAL/NTSC)
Nokia PC Suite connectivity with USB, Infrared and Bluetooth wireless technology
Local synchronization of contacts and calendar to a compatible PC using compatible connection
Remote over-the-air synchronization
Send and receive images, video clips, graphics, and business cards via Bluetooth wireless technolog

RealPlayer media player
Full-screen video playback to view downloaded, streamed or recorded video clips
Supported video formats: MPEG-4, H.264/AVC, H.263/3GPP, RealVideo 8/9/10

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