How To Fix HRPAYDEB2A106 - Key length PSE file (&1) <> key length certificate list (&2)

SAP Error Message - Details

• Message type: E = Error

• Message class: HRPAYDEB2A - Business to Administration: Germany

• Message number: 106

• Message text: Key length PSE file (&1) <> key length certificate list (&2)

What causes this issue?

The PSE was created with a key length of &V1&. The certificates selected
to import to the PSE have a key length of &V2&.

System Response

The certificates are not imported as they are not compatible.

How to fix this error?

Select the correct certificate list. The relevant lists are available on
the webpage of the ITSG (Trustcenter) for downloading.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message HRPAYDEB2A106 - Key length PSE file (&1) <> key length certificate list (&2) ?

  The SAP error message HRPAYDEB2A106 indicates a mismatch between the key length of the PSE (Personal Security Environment) file and the key length of the certificate list. This error typically arises in the context of secure communication, such as when using SSL/TLS for secure connections in SAP systems.
  Cause:
  
  Key Length Mismatch: The PSE file contains a private key with a certain key length, while the certificate list (which may include public keys) has a different key length. This inconsistency can lead to issues in establishing secure connections.
  Configuration Issues: Incorrect configuration of the PSE or the certificates can lead to this error. This might happen during the import of certificates or when generating new keys.
  Outdated Certificates: If the certificates have been updated or changed without corresponding updates to the PSE, this can lead to mismatches.
  
  Solution:
  
  
  Check Key Lengths: Verify the key lengths of both the PSE file and the certificate list. You can use tools like OpenSSL to inspect the key lengths.
  
  For the PSE file, you can use the SAP transaction STRUST to view the PSE and its properties.
  For the certificate list, you can also check the properties in STRUST or use OpenSSL commands to inspect the certificates.
  
  
  
  Regenerate PSE: If there is a mismatch, you may need to regenerate the PSE file to ensure that it matches the key length of the certificates. This can be done in the STRUST transaction:
  
  Navigate to the appropriate PSE (e.g., SSL client PSE).
  Delete the existing PSE and create a new one, ensuring that the key length matches the certificates.
  
  
  
  Import Certificates Again: If you have recently updated or changed certificates, ensure that they are correctly imported into the PSE. Make sure that the certificates are compatible with the key length of the PSE.
  
  
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as there may be fixes related to security and PSE management.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to PSE management and SSL configuration for specific guidance tailored to your SAP version.
  
  
  Related Information:
  
  Transaction STRUST: This transaction is used to manage PSEs and certificates in SAP. You can view, import, and export certificates and manage the PSE.
  SAP Notes: Check for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Security Configuration: Review the security configuration of your SAP system, especially if you are implementing or modifying SSL/TLS settings.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.