# Supported SSH Ciphers Here is a list of SSH ciphers we currently support for use with SFTP. ## **Key Exchange Algorithms** * * curve25519-sha256 * ecdh-sha2-nistp256 * ecdh-sha2-nistp384 * ecdh-sha2-nistp521 * diffie-hellman-group14-sha256 * diffie-hellman-group15-sha512 * diffie-hellman-group16-sha512 * diffie-hellman-group17-sha512 * diffie-hellman-group18-sha512 ## **Host Key Algorithms** * ssh-rsa * rsa-sha2-512 * rsa-sha2-256 ## **Encryption Algorithms** * * * aes128-ctr * aes192-ctr * aes256-ctr ## **MAC Algorithms** * * * * hmac-sha2-256 * hmac-sha2-512 * hmac-sha1 ## **Compression Algorithms** * none The host key length is **4096 bits** which may be too large for some older FTP clients. Ensure that you are using a version of your SFTP client (or client library) that the vendor supports.