SAP Knowledge Base Article - Public

3445119 - Generic SFTP Connection error - com.jcraft.jsch.jschexception: algorithm negotiation fail

Symptom

Error validating Generic SFTP connection in Datasphere:

Data Flows: Cause: Possible causes of error: Detailed error message algorithm negotiation fail

"Cause[2]: Possible causes of error: Detailed error message (com.jcraft.jsch.jschexception: algorithm negotiation fail) Code:1103002"

Environment

SAP Datasphere

Cause

host key algorithm used is not supported

Resolution

 Generate a new keypair on the SFTP server using a valid algorithm type :

  • ecdsa-sha2-nistp256
  • ecdsa-sha2-nistp384
  • ecdsa-sha2-nistp521
  • rsa-sha2-512
  • rsa-sha2-256

See Also

3079510 - "com.jcraft.jsch.JSchException: Algorithm negotiation fail" error using the Cloud Integration SFTP adapter

Keywords

SFTP, algorithm, host key, jschexception, ecdsa, rsa , KBA , DS-DI-CON , Connections , Problem

Product

SAP Datasphere all versions