How To Fix TRUST169 - Algorithm &1 &2 &3 is not recommended for this application

SAP Error Message - Details

• Message type: E = Error

• Message class: TRUST - Certificate Management

• Message number: 169

• Message text: Algorithm &1 &2 &3 is not recommended for this application

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TRUST169 - Algorithm &1 &2 &3 is not recommended for this application ?

  The SAP error message TRUST169 indicates that a cryptographic algorithm being used is not recommended for the application in question. This typically relates to security settings and the use of cryptographic algorithms that may be considered weak or outdated.
  Cause:
  The error occurs when the application attempts to use a cryptographic algorithm (e.g., a specific hashing or encryption algorithm) that is either deprecated or not considered secure by current standards. This can happen due to:
  
  Outdated Configuration: The system may be configured to use older algorithms that are no longer recommended.
  Security Policies: The organization may have security policies that restrict the use of certain algorithms.
  SAP Version: The version of SAP being used may have specific recommendations regarding cryptographic algorithms.
  
  Solution:
  To resolve the TRUST169 error, you can take the following steps:
  
  
  Update Cryptographic Settings:
  
  Review the cryptographic settings in your SAP system. This can typically be done in transaction STRUST (Trust Manager).
  Check the algorithms being used for SSL/TLS connections, digital signatures, and other cryptographic functions.
  
  
  
  Use Recommended Algorithms:
  
  Replace the deprecated algorithms with recommended ones. Commonly recommended algorithms include:
  
  AES (Advanced Encryption Standard) for encryption.
  SHA-256 or SHA-3 for hashing.
  
  
  Ensure that the algorithms you choose are supported by both your SAP system and the systems it interacts with.
  
  
  
  Update SAP Kernel and Components:
  
  Ensure that your SAP system is up to date with the latest patches and updates. SAP regularly updates its security recommendations and may provide newer versions of cryptographic libraries.
  
  
  
  Consult SAP Documentation:
  
  Refer to the official SAP documentation or the SAP Notes related to cryptographic algorithms for your specific version of SAP. This can provide guidance on which algorithms are recommended and how to configure them.
  
  
  
  Test Changes:
  
  After making changes, thoroughly test the system to ensure that all functionalities are working as expected and that there are no new issues introduced.
  
  
  
  Engage SAP Support:
  
  If you are unsure about the changes or if the issue persists, consider reaching out to SAP Support for assistance. They can provide specific guidance based on your system configuration and requirements.
  
  
  
  Related Information:
  
  SAP Security Guidelines: Familiarize yourself with SAP's security guidelines and best practices for cryptography.
  Transaction STRUST: This transaction is used to manage SSL certificates and trust relationships in SAP systems.
  SAP Notes: Search for relevant SAP Notes that address cryptographic algorithms and security settings for your specific SAP version.
  
  By following these steps, you should be able to resolve the TRUST169 error and ensure that your SAP application is using secure and recommended cryptographic algorithms.