3294832 - PI/PO SFTP Adapter error - Algorithm negotiation fail

• You are using the SFTP Adapter in Process Integration (PI) or Process Orchestration (PO).
• You are connecting to an existing SFTP Server which has updated it's security requirements and disabled previously enabled security algorithms or key exchange methods.
• Or you are connecting to a new SFTP Server which only supports more modern security algorithms such as rsa-sha2-256.
• When testing the connection (either Sender or Receiver adapter side) the error "Algorithm negotiation fail" is returned. 

• SAP NetWeaver 7.5
• SAP Process Integration, secure connectivity add-on

FIP 140-2 compliant, rsa-sha2-256, rsa-sha2-512, ssh-rsa, message fails, JPMC , KBA , BC-XI-CON-SFT , Secure File Transfer Protocol Adapter , Problem