Revision History

Version 4.x

Auto-key transfer now requires the use of a password.

Receiving a key transfer now allows up to 3 attempts to enter the password.

Contacts are now sorted with on-line contacts at the top followed by all other contacts. Within these two groups, contacts are alphabetical.

Reduced used bandwidth by 80%.

New images for many of the buttons.

Many additions have been made to the Options tab.
- Force Secure Mode - this option has three settings:
  - Always - the pad lock to secure a call or chat is always locked, and can not be unlocked.
  - Startup - the pad lock to secure calls is initially locked when myKryptofon starts. The pad lock to secure a chat or file transfer is initially locked when the chat or file transfer window is opened. The user can unlock the pad lock if desired.
  - Never - the state of the pad lock for calls when myKryptofon starts, is restored to its the last state when myKryptofon was last shutdown. The pad lock for a chat or file transfer will initially match the state of the call pad lock.
- Home Display - the user can specify the tab they want displayed when myKryptofon is started.
- Alert tone - the user can specify the sound to be played when myKryptofon alerts the user for activity in a chat window or file transfer.
- Strong Password - when enabled, myKryptofon will require that the password entered for exporting and sending keys, and configuring login credentials be a strong password.
- The myKryptofon MILSPEC version initializes the Force Secure Mode to Always, the Home Display to the Contacts tab, and Strong Password enabled, after installation. All other versions initialize Force Secure Mode to Never, the Home Display to the Keypad tab, and Strong Password disabled.

Automatic key detection for incoming calls, chats and file transfers.
- when a call, chat or file transfer is received myKryptofon will automatically use the key that the originator is using.
- if the recipient does not have the same key, the originator is informed and the call, chat or file transfer is not presented to the recipient.

Connectivity Management.
- In the program management section of the main window, to the left of the minimize button, may appear a dot indicating internet and/or sip connectivity issues:
  - a yellow dot indicates that myKryptofon can not ping the sip server of the active sip account.
  - a red dot indicates that myKryptofon is not registered with a sip server. This may result from a prior registration expiring, after internet connectivity to the server has failed; or from misconfiguration of the sip account.
- After a connectivity failure, myKryptofon will continually attempt to reconnect and re-register with the configured sip server.

myKryptofon now requires that there be at least 1 configured key at all times. After installation, myKryptofon will generate a key named "First Key". This key is the same in all myKryptofon installations.

The Show Times setting in a Chat window is remembered from its last setting.

Version 3.x

Ported myKryptofon to Windows Mobile 5 and Windows Mobile 6.
Added multi-file File-Transfer
Added compression of files for File-Transfer.

Version 2.x

Introduced various mechanisms to transfer information between myKryptofon users. These mechanisms appear in several locations in myKryptofon.
- Auto-Key - located on the main window, in the Secure Call Activation area, this button provides the ability, when in a call, to
  - automatically generate a Single Session Key,
  - have that key automatically transferred to all parties in the call / conference (sent with AES 256-bit encryption), and
  - automatically activate the use of that key by all parties in the call / conference, to secure the current call / conference.
- Send Key - located on the Contacts tab, this button allows a myKryptofon user to send a Key from their myKryptofon to one or more people listed in their Contacts list. The key is sent using AES 256-bit encryption.
- Send File - located on the Contacts tab, this button allows a myKryptofon user to send a File from their computer to one or more people listed in their Contacts list. The file may be sent secured using AES 256-bit encryption.
- Send Contacts - located on the Contacts tab, this button allows a myKryptofon user to send one or more of their Contact entries to one or more people listed in their Contacts list. The Contact entries are sent using AES 256-bit encryption.
- Send Key - located on the Key Manager tab, this button allows a myKryptofon user to send the selected Key to one or more people listed in their Contacts list. The key is sent using AES 256-bit encryption.

Added tuning for bandwidth consumption, more visible feedback when secured / unsecured, and the ability to appear offline in stealth mode.
- the Options tab was added. This tab provides you the ability to tune several areas of myKryptofon:
  - Enable bandwidth reduction mode - myKryptofon's default network bandwidth setting is tuned to provide you a high quality voice experience. In specific situations where you have limited data bandwidth, you may choose to decrease the bandwidth consumption. In reduction mode, myKryptofon will utilize between 5.7kbps - 6.2kbps. This is useful in wireless situations such as low quality Wi-Fi, wireless telecomm air cards or connection to your computer via your cell phone cable.
  - Enable "stealth" mode - Stealth mode turns off your presence indicator to others in the network. You will appear offline to other users, yet will still be able to make/receive voice calls, and utilize your text chat capability. In this mode, others on the network can still call and text chat to you.
  - Auto-answer - Automatically answer incoming calls after the designated number of seconds.
- Text Chat Enhancements
  - The Compose Area was increased in size to provide multi-line input
  - The Message and Compose Areas provide visual feedback for secured and unsecured text chat. A green border appears for unsecured text chat, and a red border appears for secured text chat.
- Flashing windows
  - The Main Window header will flash on an incoming call
  - The Text Chat Window header will flash on an incoming text chat
- Voicemail in Secured Voice Mode - myKryptofon will now recognize the fact that your call was forwarded to a different destination, and will automatically drop out of secured mode. This situation typically occurs when your call is forwarded to the voice mail system. Once the call is complete, myKryptofon returns to secured mode.

Multiple SIP Accounts - Version 2 allows you to configure multiple SIP accounts, providing a simple to use interface in the Account Manager tab.
Presence - In the Contacts tab, you can determine whether someone in your address book is online or not. A green dot next to their display name will appear when they are registered online with their server. A red dot appears when they are not online, or they have Do Not Disturb (DND) turned on.
Call by Typing a SIP Address - in the KeyPad tab, you may now call someone by typing their SIP address without the need to place them into the Contacts list.
Call by Double Clicking - in the Contacts tab, simply double click on one of the entries in the contact list, to call that person.