Symbian Blog

GSMSecureCall SecureCall v1.0 S60v3

This software provides two modules which are wrapped into one powerful application:
Secure Call: Encrypted Calls over a CSD/HSCSD line (EDGE Supported)
Secure SMS: Encrypted SMS

Software Highlights
Encryption : 256 bit encryption
Delay : Less than 1.5 seconds.
Key or Initializing Vector : Provided by the end user
Channel : CSD, HSCSD or EDGE
Excellent Voice quality
Integrated with Phone book
Detailed Logs

Key Management:
User can change keys by themselves, without any restrictions on number of time or for them to contact us. Complete control at all times.
Keys are not exchanged at any time during the call set up or handshaking thus ensuring that no one, including the network provider can listen to the calls.
The software and call logs are password protected so that no one can view the calling activity when they have access to the handset.
Secure call logs are not viewable in the normal call registry of the phone.

Product Highlights
A 100% software solution that enables two users from anywhere in the world to talk and send SMS over an encrypted Line using any GSM network that supports Data call (CSD/HSCSD) facility. The software, Secure Call requires to be installed on user's handsets, along with a Secret Key entered by all users. If the key is not entered correctly the secure calls will not be established.
After installation the user can access the software from the Main Menu of the phone to place secure calls to other users. To place the call the user needs to enter the normal phone number of the caller from the dialer screen. To send secure SMS, the user needs to send an SMS from within the application that will be encrypted and send over the GSM network.
When an encrypted call or SMS is sent to the other handset, the software checks for the correct keys on both ends and then initiates a 256 bit encrypted call.
Instant Secure Communication
This application ensures that information can be sent from anywhere in the world to headquarters within a few seconds. Some information requires to be sent instantaneously and requires an instant reaction. With Secure Call, a simple call is to be placed to HQ and a conversation can take place to aid instant decision making.
Non Tapping Solution
The data transferred over the GSM networks is encrypted, where the users can be assured that no one will be able to listen in. Users need not be bothered of who is listening into their conversations, as they are over a data line which is heavily encrypted. At no point is any data sent over a voice channel or is in clear text type transfer.
Security
The Secret Keys can be changed by users at any time, to ensure that keys cannot be hacked by a listening party. The Secret keys can be entered by the users at any time, and it will be reflected on the next call. Even if a key is compromised, changing the key regularly will help in maintaining a high level of security. It is also important to note that none of the keys are exchanged during a Secure Call. Instead the keys are matched locally on the phone, thus ensuring further key protection.
Prying Eyes
Incase someone picks up your phone, they cannot view the SMS and Secure Call activity, as it is not available in the normal SMS Inbox or in the Normal Call logs of the phone. The logs are maintained within the application which can only be access via a password screen.
Product Requirements:
Symbian Series 60 Handset
1 Mb of free space of both handsets
Secure Call and SMS software on both handsets
CSD/HSCSD support (to enable this support, call your GSM network provider)
GSM Network (does not work on CDMA)

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