JOIN OUR AFFILIATE NETWORK

Join our affiliate network and become a local SSL expert

♦ learn more about our program ♦
Menu
picture of tbs certificates
picture of tbs certificates
 
Certificates
Our products range
Partners
Support
Focus


How to disable RC4 and 3DES on Windows Server?

RC4

To disable RC4 on your Windows server, set the following registry keys:

    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\RC4 128/128]
        "Enabled"=dword:00000000

    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\RC4 40/128]
        "Enabled"=dword:00000000

    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\RC4 56/128]
        "Enabled"=dword:00000000

3DES

To disable 3DES on your Windows server, set the following registry key:

    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\Triple DES 168]
        "Enabled"=dword:00000000

If your Windows version is anterior to Windows Vista (i.e. XP, 2003), you will need to set the following registry key:

    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\Triple DES 168/168]
        "Enabled"=dword:00000000

See also