SSH Cipher, KEX, and MAC Information
- Last Updated: July 8, 2025
- 2 minute read
- MOVEit Gateway
- Version 2026
- Documentation
MOVEit Gateway ciphers are loaded from MOVEit Transfer each time the Gateway services are started.
- MAC
- hmac-sha2-256
- hmac-sha2-512
- KEX
- curve25519-sha256
- curve25519-sha256@libssh.org
- diffie-hellman-group-exchange-sha256
- diffie-hellman-group14-sha256
- diffie-hellman-group16-sha512
- diffie-hellman-group18-sha512
- ecdh-sha2-nistp521
- ecdh-sha2-nistp384
- ecdh-sha2-nistp256
- Public Key
- ssh-ed25519
- ecdsa-sha2-nistp256
- ecdsa-sha2-nistp384
- ecdsa-sha2-nistp521
- rsa-sha2-256
- rsa-sha2-512
- ssh-rsa
- ssh-dss
- x509v3-sign-rsa
- x509v3-sign-dss
To specify MACs, KEX or Public Key algorithms
MOVEit Gateway 2024.1 and later, uses the information that is specified in the mg-config.json file to read configured values at startup.
The mg-config.json file is in the HOME\MOVEit\MOVEit Gateway\ directory, where HOME is the MOVEit Gateway directory that is created during installation.
Before you begin, backup and save a copy of the mg-config.json file.
- Stop MOVEit Gateway using Windows services.
- Open the mg-config.json file in a text editor as an administrator.
- Edit the algorithms as required.
- Save the changes to the mg-config.json file.
- Start MOVEit Gateway using Windows services.
To configure SSH ciphers for Port 10022
Before you begin, backup and save a copy of the mg-config.json file located in the HOME\MOVEit\MOVEit Gateway\ directory, where HOME is the MOVEit Gateway directory that is created during installation.
- Stop MOVEit Gateway using Windows services.
- Open the mg-config.json file in a text editor as an administrator.
- Add or update the following entry in the mg-config.json file, Replace the cipher list with your
chosen ciphers.
By default, the SSH tunnel will use these three ciphers if not manually configured in the mg-config.json file."tunnelSshCiphers": [ "aes256-ctr", "aes192-ctr", "aes128-ctr" ] - Save the changes to the mg-config.json file.
- Start MOVEit Gateway using Windows services.
For more information about SSH ciphers, KEX, or MAC algorithms, see SSH - Configuration (and IP address bindings).