Newer key exchange methods supported for sftp backups

Details

Detail name Value
Changelog Number 9125
Type Improvement
Status Resolved
Fix Versions Exasol 6.1.8, Exasol 6.2.4
Resolution Date 2020-01-16

New feature

The sftp/ssh implementation that is used for remote backups to sftp servers now supports authentication to the ssh/sftp server via key exchange methods based on elliptic curve cryptogrphy, such as:

  • curve25519-sha256
  • ecdh-sha2-nistp256
  • ecdh-sha2-nistp384
  • ecdh-sha2-nistp521

in addition to the previously supported diffie-hellman algorithms.

Benefits

This provides increased security and future safety and allows administrators to disable older, less secure algorithms in their ssh/sftp servers.