Your browser does not allow storing cookies. We recommend enabling them.


Configuring Ciphers and MACs

For best performance, prune the cipher and MAC algorithms in the server configuration file to only those that are supported by the cryptographic hardware. If a client suggests an algorithm that is not supported by the cryptographic hardware, software cryptography will be used.

Example: Ciphers and MACs in the server configuration file sshd2_config

Ciphers           aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
MACs              hmac-sha1,hmac-sha1-96

The example sshd2_config configuration file lists the algorithms that are used by default. For a list of all the supported algorithms, see the Administrator Manual.


Highlights from the SSH.COM blog:

  • Cryptomining with the SSH protocol: what big enterprises need to know about it

    Cryptomining malware is primarily thought of as targeting desktops and laptops and is used to hijack system resources to mine cryptocurrency.
    Read more
  • SLAM the door shut on traditional privileged access management

    Did you know that something as trivial-sounding as granting access for your developers or third parties to a product development environment can throw a gorilla-sized monkey wrench into your operations and productivity?
    Read more
  • We broke the IT security perimeter

    Everyone understands the concept of a security perimeter. You only gain access if you are identified and authorized to do so.
    Read more