How To Fix SAML2165 - Can't encrypt string: '&1'

SAML2165 - Overview

• Message type: E = Error

• Message class: SAML2 - SAML2 Nachrichten

• Message number: 165

• Message text: Can't encrypt string: '&1'

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 SAML2165 - Can't encrypt string: '&1' ?

  The SAP error message SAML2165, which states "Can't encrypt string: '&1'", typically occurs in the context of Single Sign-On (SSO) configurations using SAML (Security Assertion Markup Language). This error indicates that the system is unable to encrypt a specific string, which is often related to issues with the encryption keys or the configuration of the SAML setup.
  Causes:
  
  Missing or Incorrect Key Configuration: The encryption keys required for SAML assertions may not be properly configured or may be missing.
  Invalid Key Length: The key length used for encryption may not meet the required standards or may be incompatible with the encryption algorithm.
  Certificate Issues: The certificate used for encryption may be expired, invalid, or not properly imported into the SAP system.
  System 
  Configuration Issues: There may be misconfigurations in the SAML settings or the Identity Provider (IdP) settings.
  Unsupported Characters: The string that is being encrypted may contain unsupported characters or formatting issues.
  
  Solutions:
  
  
  Check Key Configuration:
  
  Ensure that