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How To Fix TRUST135 - RSA with SHA-512


SAP Error Message - Details

  • Message type: E = Error

  • Message class: TRUST - Certificate Management

  • Message number: 135

  • Message text: RSA with SHA-512

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  • 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.



    What else can you do?

    First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

    Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

    You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.


Smart SAP Assistant

  • What is the cause and solution for SAP error message TRUST135 - RSA with SHA-512 ?

    The SAP error message TRUST135 typically relates to issues with digital signatures or certificates, particularly when using RSA with SHA-512 hashing. This error can occur in various contexts, such as when dealing with secure communications, digital signatures, or certificate validation in SAP systems.

    Cause:

    1. Unsupported Hash Algorithm: The error may arise if the system does not support the SHA-512 hash algorithm for the RSA signature. This can happen if the cryptographic libraries or configurations in the SAP system are outdated or not properly set up.
    2. Certificate Issues: The certificate being used may not be valid, may have expired, or may not be trusted by the SAP system.
    3. Configuration Problems: There may be misconfigurations in the trust relationships or in the cryptographic settings of the SAP system.

    Solution:

    1. Update Cryptographic Libraries: Ensure that the SAP system is updated to the latest version, which includes support for SHA-512. This may involve applying patches or updates provided by SAP.
    2. Check Certificates: Verify that the certificates being used are valid, not expired, and properly installed in the SAP system. You can check the certificate's validity using tools like OpenSSL or through the SAP GUI.
    3. Configure Trust Relationships: Ensure that the trust relationships are correctly configured. This may involve importing the necessary root and intermediate certificates into the SAP system's trust store.
    4. Review Security Settings: Check the security settings in the SAP system to ensure that SHA-512 is enabled and supported. This may involve reviewing the configuration in transaction codes like STRUST or SCOT.
    5. Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently publishes notes that provide solutions or workarounds for known issues.

    Related Information:

    • Transaction STRUST: This transaction is used to manage SSL certificates and trust relationships in SAP. You can use it to import, export, and manage certificates.
    • Transaction SSO2: This transaction is used for Single Sign-On configurations, which may also involve certificate management.
    • SAP Security Guides: Refer to SAP's security guides and documentation for best practices on managing certificates and cryptographic settings.
    • SAP Community: The SAP Community forums can be a valuable resource for finding solutions to specific error messages and issues encountered by other users.

    If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.

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