KB25517 - [Core Access] Support for Citrix SecureICA with PCS

This article provides information about the support for Citrix SecureICA with PCS.

• A user has a query about support for encrypted client (SecureICA) connections via PCS.

 

• The use is using the Citrix Web interface/JICA in the Web Application Resource Profile and has selected the following settings:
   
  • Non JAVA ICA with web Interface.
• ICA Client connects over CTS Client.

 

• On the Citrix Farm, the user has enabled 128 bit encryption with RC5 as the Cipher Suite.

• The SecureICA client should work with the PCS device, as PCS does not interfere with the ICA file encryption.

 

• SecureICA encryption is applied to the entire ICA packet; except for a small encryption header, all of the ICA commands and data are encrypted, which includes:
   
  • Keystrokes
• Mouse data

 

• Graphic information

 

• Client drive data

 

• Client printer data

 

• Client audio data

As the ICA connection is not terminated on the PCS device, SecureICA should work normally with CTS.
 

For more information, refer to the following link:

http://www.czerno.com/default.asp?inc=/html/terminal_server/SecureICA/citrix_secure_ica_services.asp

As per the above link:

"Adding to the basic security levels of MetaFrame, the Secure ICA software uses 128-bit encryption or key length (56- and 40-bit encryption is also available) to provide maximum protection for information being sent between Citrix servers and clients. By using a key of this length, Secure ICA makes it virtually impossible for unauthorized users to open an encrypted transmission."