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3329377 - SAP CPI SFTP Authentication Algorithm selection problem


Your external partner tells, that the hMAC settings ( hMAC SHA-1) is not supported and should be updated to hMAC SHA-2 256 or 512

In the SFTP connection log you see that an earlier version is used in the first place: ( example log )


Session server-to-client * hmac-sha1


You want a solution to force hMAC SHA-2 256 to get used firstly in the iFlow.



  • SAP Integration Suite
  • SAP Business Technology Platform
  • Cloud Integration


SAP Business Technology Platform all versions


Cloud Integration, SAP Integration Suite, SAP Cloud Platform Integration, Cloud Platform Integration, SAP CPI, CPI, SCPI, HANA Cloud Integration, HCI, SAP HCI, tenant, iFlow, Integration Flow, SFTP adapter, Message Authentication Code algorithm
, KBA , LOD-HCI-PI-CON-SOAP , SOAP Adapter , Problem

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