How To Fix TRUST136 - RSA with SHA-224

SAP Error Message - Details

• Message type: E = Error

• Message class: TRUST - Certificate Management

• Message number: 136

• Message text: RSA with SHA-224

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 TRUST136 - RSA with SHA-224 ?

  The SAP error message TRUST136 typically indicates an issue related to the use of the RSA algorithm with the SHA-224 hash function in the context of digital signatures or certificates. This error can arise when the system encounters a cryptographic operation that is not supported or is considered insecure.
  Cause:
  
  Unsupported Hash Algorithm: SHA-224 is not widely supported in many cryptographic libraries and may not be recognized by the SAP system or the underlying Java environment.
  Configuration Issues: The system may not be configured to accept or process certificates or signatures that use SHA-224.
  Outdated Cryptographic Libraries: The libraries used for cryptographic operations may be outdated and not support newer or less common algorithms.
  
  Solution:
  
  Use Supported Hash Algorithms: If possible, switch to a more widely supported hash algorithm, such as SHA-256 or SHA-512. This may involve updating the signing process or the certificates being used.
  Update Cryptographic Libraries: Ensure that the cryptographic libraries used by your SAP system are up to date. This may involve applying patches or updates to the SAP system or the underlying Java environment.
  Configuration Changes: Check the configuration settings in your SAP system to ensure that it is set up to accept the desired hash algorithms. This may involve modifying security settings or trust configurations.
  Consult Documentation: Refer to SAP's official documentation or support resources for guidance on supported algorithms and configurations.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that address this specific error or provide guidance on cryptographic settings.
  Security Policies: Review your organization's security policies regarding cryptographic algorithms to ensure compliance and best practices.
  Testing: After making changes, conduct thorough testing to ensure that the system operates correctly and securely with the new configurations.
  
  If the issue persists after trying these solutions, consider reaching out to SAP support for further assistance.