SSH connection fails to sshd server with enabled ibmca engine

Solution In Progress - Updated -

Issue

  • On IBM Z the current openssh implementation might show an issue regarding elliptic curve (EC) algorithms when used in conjunction with cryptographic adapters for acceleration of clear key cryptographic commands. The problem surfaces when the ibmca engine is used to register EC algorithms with openssl, either in respective openssl.cnf file sections or by request on the command line.

Environment

  • Red Hat Enterprise Linux(RHEL) 7.x
  • IBM System Z / S390x

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content