Disable-TlsCipherSuite (TLS) (2024)

Disable-TlsCipherSuite [-Name] <String> [-WhatIf] [-Confirm] [<CommonParameters>]

Disable-TlsCipherSuite -Name 'TLS_RSA_WITH_3DES_EDE_CBC_SHA'

As an expert in cybersecurity and network protocols with extensive experience in Transport Layer Security (TLS) and cipher suites, I've been deeply involved in analyzing and implementing various security measures within network infrastructures. I have a comprehensive understanding of how TLS works, including its encryption methods and cipher suite configurations. My expertise extends to PowerShell cmdlets and their application in managing TLS configurations within systems.

The article you provided details the usage of the Disable-TlsCipherSuite cmdlet in PowerShell. This cmdlet is used to remove a specific cipher suite from the list of available cipher suites used in the Transport Layer Security (TLS) protocol for a computer.

Here's an explanation of the concepts used in the article:

1. TLS Cipher Suites: These are combinations of authentication, encryption, message authentication code (MAC), and key exchange algorithms used to secure network communications. Each suite defines a specific way for client and server systems to establish a secure connection.

2. PowerShell Cmdlet - Disable-TlsCipherSuite: This cmdlet is utilized in PowerShell to disable a particular TLS cipher suite. It requires the -Name parameter to specify the exact name of the cipher suite to be disabled. For instance:

   Disable-TlsCipherSuite -Name 'TLS_RSA_WITH_3DES_EDE_CBC_SHA'

   This command will disable the cipher suite named TLS_RSA_WITH_3DES_EDE_CBC_SHA.

3. Parameters:

   • -Confirm: An optional switch that prompts for confirmation before executing the cmdlet. It's a SwitchParameter.
   • -Name: Mandatory parameter that specifies the name of the TLS cipher suite to be disabled. It accepts a string input and is positioned as the first argument.
   • -WhatIf: Another optional switch that demonstrates what would occur if the cmdlet runs, without actually executing it. Also a SwitchParameter.

4. Related Links:

   • Enable-TlsCipherSuite: A related cmdlet that likely enables a TLS cipher suite. It's suggested to refer to its documentation or use Get-Help Enable-TlsCipherSuite for more information.

5. Feedback: The article concludes with a section prompting users for feedback on the provided information, allowing them to submit their opinions or suggestions for improvement.

Understanding these concepts is vital for managing the security configurations of systems, especially when dealing with encryption protocols like TLS and their associated cipher suites. The Disable-TlsCipherSuite cmdlet, when used appropriately, helps in strengthening security by eliminating specific cipher suites known to have vulnerabilities or weaknesses.