SAP Knowledge Base Article - Preview

1614578 - Secure Login: “Authentication data not trusted” when using Smart Cards


When starting a SAP Logon connection to a target system with SNC, the error message “Error in SNC” is displayed.

The target system’s developer trace shows the messages:

N  *** ERROR => SncPEstablishContext()==SNCERR_GSSAPI  [sncxxall.c 3357]
N        GSS-API(maj): Miscellaneous failure
N        GSS-API(min): Authentication data not trusted
N      Unable to establish the security context
N  <<- SncProcessInput()==SNCERR_GSSAPI



  • SAP Secure Login Client Version 1.0 with support for smart cards
  • A smart card solution like Aladdin eToken



SAP NetWeaver all versions


KBA , BC-IAM-SL , Please use BC-IAM-SSO* , How To

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