How To Fix TRUST092 - DSA algorithm has a maximum key length of 1024 bits

SAP Error Message - Details

• Message type: E = Error

• Message class: TRUST - Certificate Management

• Message number: 092

• Message text: DSA algorithm has a maximum key length of 1024 bits

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TRUST092 - DSA algorithm has a maximum key length of 1024 bits ?

  The SAP error message TRUST092 indicates that there is an issue with the Digital Signature Algorithm (DSA) key length being used in your SAP system. Specifically, it states that the DSA algorithm has a maximum key length of 1024 bits, and if a longer key length is being used, it will trigger this error.
  Cause:
  The error typically arises when:
  
  A DSA key with a length greater than 1024 bits is being used in the system.
  The system is trying to process a digital signature or certificate that does not comply with the DSA key length restrictions.
  
  Solution:
  To resolve the TRUST092 error, you can take the following steps:
  
  
  Check Key Length: Verify the key length of the DSA keys being used in your SAP system. Ensure that they do not exceed 1024 bits.
  
  
  Regenerate Keys: If you find that the keys exceed the maximum length, you will need to regenerate the DSA keys with a key length of 1024 bits or less. This can typically be done through the SAP Trust Manager (transaction code STRUST).
  
  
  Update Certificates: If you are using certificates that contain DSA keys, ensure that you replace them with new certificates that comply with the key length requirement.
  
  
  Review Configuration: Check the configuration settings in your SAP system related to cryptographic algorithms and ensure that they are set to use compliant key lengths.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to cryptographic settings and key management for further guidance.
  
  
  Testing: After making the necessary changes, test the system to ensure that the error is resolved and that digital signatures are processed correctly.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or updates regarding this error.
  Security Best Practices: Familiarize yourself with security best practices for key management and cryptographic algorithms in SAP systems.
  SAP Community: Engage with the SAP Community forums for insights and experiences from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the TRUST092 error and ensure that your SAP system is compliant with the DSA key length requirements.