SSH
SmartFTP implements the following features of the Secure Shell (SSH) protocol.
Features
Security Standard Compliance
- NIST FIPS 203
- NIST FIPS 204
- NIST FIPS 140-2
- NIST FIPS 140-3
- NIST FIPS 186-4
- NIST FIPS 186-5
- NIST SP 800-131A, NIST SP 800-186
Authentications
The following authentication methods are supported:- Password
Username/password and keyboard-interactive authentication. Also supports server password change requests. - Public Key
Key file (PuTTY, VanDyke's SecureCRT, SSH.com, OpenSSH, PEM), X.509 certificates, Microsoft Windows certificates from a certificate store or a Smart Card (PKCS #11). - Kerberos v5 (GSSAPI/SSPI)
Support for Microsoft Windows Kerberos (SSPI) and MIT Kerberos (GSSAPI) implementations. - Host Based
Authentication with a host key file or a certificate. - RSA SecurID
RSA SecurID two-factor authentication.
Encryptions
- AES CBC Mode (aes256-cbc, aes192-cbc, aes128-cbc) (RFC 4344)
- AES CTR Mode (aes256-ctr, aes192-ctr, aes128-ctr) (RFC 4344)
- AES GCM (aes128-gcm@openssh.com, aes256-gcm@openssh.com) (OpenSSH, draft-miller-sshm-aes-gcm)
- Chacha20-Poly1305 (chacha20-poly1305@openssh.com) (OpenSSH, draft-ietf-sshm-chacha20-poly1305)
- Triple DES (3des-cbc) (for compatibility)
Compressions
- Delayed compression (zlib@openssh.com) (draft-miller-secsh-compression-delayed)
- No compression (none)
Key Exchange Methods
- diffie-hellman-group14-sha1 (RFC 4253) (for compatibility)
- diffie-hellman-group-exchange-sha1 (RFC 4419) (for compatibility)
- diffie-hellman-group-exchange-sha256 (RFC 4419)
- diffie-hellman-group14-sha256 (RFC 8268)
- diffie-hellman-group16-sha512 (RFC 8268)
- ecdh-sha2-nistp256 (RFC 6239)
- ecdh-sha2-nistp384 (RFC 6239)
- ecdh-sha2-nistp521 (RFC 6239)
- curve25519-sha256 (RFC 9142)
- curve25519-sha256@libssh.org (for compatibility)
- mlkem768x25519-sha256 (RFC 10042)
Public Key Algorithms
- ssh-rsa (RFC 4253)
- ssh-dss (RFC 4253) (for compatibility)
- rsa-sha2-256 (RFC 8332)
- rsa-sha2-512 (RFC 8332)
- ecdsa-sha2-nistp256 (RFC 6239)
- ecdsa-sha2-nistp384 (RFC 6239)
- ecdsa-sha2-nistp521 (RFC 6239)
- x509v3-ssh-rsa (RFC 6187)
- x509v3-rsa2048-sha256 (RFC 6187)
- x509v3-ecdsa-sha2-nistp256 (RFC 6187)
- x509v3-ecdsa-sha2-nistp384 (RFC 6187)
- x509v3-ecdsa-sha2-nistp521 (RFC 6187)
- ssh-ed25519 (RFC 8709)
- ssh-ed448 (RFC 8709)
- ssh-rsa-cert-v01@openssh.com (OpenSSH)
- ecdsa-sha2-nistp256-cert-v01@openssh.com (OpenSSH)
- ecdsa-sha2-nistp384-cert-v01@openssh.com (OpenSSH)
- ecdsa-sha2-nistp521-cert-v01@openssh.com (OpenSSH)
- rsa-sha2-256-cert-v01@openssh.com (OpenSSH)
- rsa-sha2-512-cert-v01@openssh.com (OpenSSH)
- ssh-ed25519-cert-v01@openssh.com (OpenSSH)
- ssh-mldsa-44 (draft-sfluhrer-ssh-mldsa)
- ssh-mldsa-65 (draft-sfluhrer-ssh-mldsa)
- ssh-mldsa-87 (draft-sfluhrer-ssh-mldsa)
HMACs
- hmac-sha1 (RFC 4253)
- hmac-sha2-256 (RFC 6668)
- hmac-sha2-512 (RFC 6668)
- hmac-sha2-256-etm@openssh.com, hmac-sha2-512-etm@openssh.com (OpenSSH)
Extensions
- server-sig-algs (RFC 8308)
- no-flow-control (RFC 8308)
- kex-strict-c, kex-strict-c-v00@openssh.com (draft-ietf-sshm-strict-kex)