Xact File Transfer: Internal File Transfer management tool upgrade


Clearstream Banking1 informs customers that effective

22 November 2021

it will perform an upgrade to its Internal File Transfer management tool on the Xact File Transfer server.

Clearstream Banking is continuously reviewing its Connectivity services to guarantee the highest security standards. To maintain these high standards, Clearstream Banking will perform a transparent upgrade of its Internal File Transfer management tool on the Xact File Transfer server.

Xact File Transfer

It is assumed that the upgrade will be fully transparent as the existing connectivity configurations will be kept. No issues are expected, but to avoid problems linked to the compatibility of customers browsers or FTP and SFTP tools, it is strongly advised to conduct tests.


Activities and connectivity can be tested in Clearstream Banking’s OneClearstream Customer Testing Environment (OCCT) from 23 August 2021 to avoid any service disruption.

Security notice

The following connectivity parameters could be removed during Q3 2022. Therefore, we ask customers to prepare the decommission of them from their applications.


diffie-hellman-group14-sha1, diffie-hellman-group1-sha1


hmac-sha1, hmac-md5, hmac-sha1-96, hmac-md5-96


aes128-cbc, aes192-cbc, aes256-cbc, 3des-cbc, blowfish-cbc, arcfour, arcfour128, arcfour256





Further information

For further information, please contact the Clearstream Connectivity Helpdesk.


1. Clearstream Banking refers collectively to Clearstream Banking S.A., registered office at 42, avenue John F. Kennedy, L-1855 Luxembourg, and registered with the Luxembourg Trade and Companies Register under number B-9248, and Clearstream Banking AG, registered office at 61, Mergenthalerallee, 65760 Eschborn, Germany and registered in Register B of the Amtsgericht Frankfurt am Main, Germany under number HRB 7500.