How To Fix CCARDEC001 - No hash value could be generated using algorithm SHA1

SAP Error Message - Details

• Message type: E = Error

• Message class: CCARDEC - Encryption of Payment Card Data

• Message number: 001

• Message text: No hash value could be generated using algorithm SHA1

What causes this issue?

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

System Response

How to fix this error?

Hash algorithm SHA1 is not available in the kernel. Refer to SAP Note
565111.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CCARDEC001 - No hash value could be generated using algorithm SHA1 ?

  The SAP error message CCARDEC001 indicates that the system encountered an issue while trying to generate a hash value using the SHA1 algorithm. This error typically arises in the context of data encryption or digital signatures, where hash values are used to ensure data integrity and authenticity.
  Causes:
  
  Missing or Incorrect Configuration: The SHA1 algorithm may not be properly configured in the SAP system. This could be due to missing libraries or incorrect settings in the cryptographic framework.
  Unsupported Algorithm: The system may not support the SHA1 algorithm due to security policies or updates that have deprecated its use.
  Corrupted Data: The data being processed may be corrupted or not in the expected format, leading to the failure in generating a hash.
  System Updates or Patches: Recent updates or patches to the SAP system may have affected the cryptographic functions or libraries.
  
  Solutions:
  
  Check Configuration: Verify the configuration settings for cryptographic algorithms in the SAP system. Ensure that the SHA1 algorithm is enabled and correctly configured.
  Update Cryptographic Libraries: Ensure that the necessary cryptographic libraries are installed and up to date. This may involve updating the SAP kernel or related components.
  Review Security Policies: If your organization has security policies that restrict the use of SHA1 due to its vulnerabilities, consider switching to a more secure hashing algorithm, such as SHA256.
  Data Validation: Check the integrity of the data being processed. Ensure that it is in the correct format and not corrupted.
  Consult SAP Notes: Look for relevant SAP Notes or Knowledge Base Articles that address this specific error. SAP frequently publishes updates and fixes for known issues.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  Related Information:
  
  SHA1 Vulnerabilities: Be aware that SHA1 is considered weak and vulnerable to collision attacks. Many organizations are moving towards stronger algorithms like SHA256 or SHA3.
  SAP Cryptographic Library: Familiarize yourself with the SAP Cryptographic Library (SAPCRYPTOLIB), which provides various cryptographic functions and may need to be configured correctly.
  System Logs: Check the system logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the issue.
  
  By addressing the potential causes and implementing the suggested solutions, you should be able to resolve the CCARDEC001 error in your SAP system.