Home   Index   Plugin Overview   Quick Start   MSRC4 Plugin   ARC4 Plugin   AESV2 Plugin   FAQ   Old Stuff   *BETA*  

MSRC4 Plugin

MSRC4Plugin - uses 128bit RC4 encryption. It does not require a pre-shared key. It uses MD5 to create a 128bit hash of your password, and uses that as the encryption key.  A random 128bit IV is added to the first block.

Downloads

Version 1.2.2

MSRC4Plugin122.zip - plugin

MSRC4Plugin122_src.zip - source

Release Notes

Version 1.2.2 - 8/16/2006

• Removed SALTing due to Windows 2000 problem
• Removed REG version of the plugin. There is no good reason left to no use NOREG.

Version 1.2.1 - 7/10/2006

• Fixed Windows 2000 encryption problem
• Fixed missing password problem.

Version 1.2.0 - 5/17/2006

• Further config window tweaks. Added enhanced search for the key file.
• Adjusted the size of the config dialog to fit better in 640X480.
• Fixed some problems with reverse connections.
• Plugin can be used with or without a key file. If no key file is found the plugin uses a hashed version of the VNC password.
• Added SALTing of the key for each session. This makes each session key unique. This also makes it incompatible with all earlier plugins. Key files are still valid.

Version 1.1.8.2 - 8/11/2005

• Fixed a bug introduced in 1.1.7 NoReg.

Version 1.1.8 - 6/3/2005

• Fixed a bug introduced in 1.1.7 that caused the NoReg version to fail to find the keyfile in some cases.
• Requires UltraVNC RC19-5 or greater

Version 1.1.7 - 5/21/2005

• Moved some code for better build automation
• Updated the License and Whats New files.
• Requires UltraVNC RC19-5 or greater

Version 1.1.6 - 3/12/2005

• Fixed errors on 95/98/98SE/ME/NT caused by 115 key container changes
• Fixed problems getting environment variables in some cases.
• Fix default registry keys missing, causing GenKey to fail on new installs.
• Regression Tested back to 95 OSR2
• Integrated crypto.exe into the plugin source.
• Added testviewer.bat, testserver.bat, debug_on.reg, and debug_off.reg to the zip file.
• Requires UltraVNC RC19-5 or greater

Version 1.1.5 - 2/18/2005

• Works with "Guest" account. (No longer uses a persistent key container)
• Removed Delete Container button.
• Requires UltraVNC RC19-5 or greater
• Some additional buffer allocation checking
• Code clean-ups and comments
• Changed new key file name from rc4.txt to new_rc4.key (Microsoft messes with the txt extension)
• Some additional error handling to insure non-encrypted connections can't be made if something fails
• Updated the Copyright information

Version 1.1.4 - 2/9/2005

• Requires UltraVNC RC19-5 or greater
• On-the-fly environment variables don't end up in the registry. See where this is going?
• Added a check to see if we are Interactive or Service, and get the variables from "the right place"

Version 1.1.3 - 2/8/2005

• Requires UltraVNC RC19-5 or greater
• Service couldn't find environment variables (%programfiles%), pull env variables from registry.
• Check USER and SYSTEM environment variables.
• Key not Found fixed.
• REG and NoReg BOTH generate new keys as rc4.txt
• REG wasn't initializing all the registry keys properly
• Cleaned up some constants

Version 1.1.2 - 1/26/2005

• Requires UltraVNC RC19-5 or greater
• Default of "Program Files" changed to %programfiles% (for non-english Windows)
• Added a "Delete Container" button to the config dialog (delete corrupt container)
• Fixed a minor bug in calls to the encryption API
• Registry access defaults to READ access not Read/Write, except in the conf dialog.
• Registry and _noreg versions of the plugin.

Version 1.1.1 - 4/26/2004

• Never had a chance...

Version 1.1.0 - 3/8/2004

• GUI supports 40, 56, and 128bit keys better
• Better OS and API version detection
• Better detection of MAX KEY size
• Cleaned up registry problems
• Changed Key Store from Default to MSRC4Plugin
• Better error logging (for debugging)

Version 1.0.9 - 1/6/2004

• Now supports 40, 56, and 128bit keys
• Supports 128bit on Windows 95 osr2 -> Windows 2003 (Win 95/98 require High Encryption Pack)
• Log file is off by default. Controlled by a registry key
• Key file now contains a text field with the bit depth. (Old key files are NOT compatible)
• Better support for multi-threading
• Better error handling. (fails to load rather than allowing blank keys to be used)
• OS version detection to select the correct crypto provider
• UPX'd the DLL to shrink the size

Version 1.0.6 - 1.0.8 - ??/??/??

• Never saw the light of day....

Version 1.0.5 - ??/??/??

• 128bit version (or something...)

Version 1.0.4 - 10/2/2003 - Production Ready! No, really!

• Fixed my finger fumble...;-)

Version 1.0.3 - 10/1/2003 - Production Ready!

• Corrected viewer crashes under stress
• Finished the Configure Dialog text-boxes
• Clean up some code.

Version 1.0.2 - 9/15/2003

• Corrected "Blank Key" generation problem.
• Changed export/import key so that it actually works ;-)
• Paths to the plugins are stored in the registry.
  

• HKCU\Software\ORL\VNCViewer\DSMPlugins\MSRC4
• HKLM\Software\ORL\VNCViewer\DSMPlugins\MSRC4
• HKLM\Software\ORL\WinVNC3\DSMPlugins\MSRC4

• STARTED to add a GUI to edit the paths/key file names
  

Version 1.0.0 - 3/20/2003

• Initial Release

Hit Counter

Last modified 6/6/2005