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Supported SSH Ciphers for Thru SFTP Server

SSH2 Algorithm Enumeration

Key Exchange Algorithms (KEX) [7 total]

  • diffie-hellman-group14-sha1

  • diffie-hellman-group1-sha1

  • diffie-hellman-group-exchange-sha256

  • diffie-hellman-group-exchange-sha1

  • ecdh-sha2-nistp256

  • ecdh-sha2-nistp384

  • ecdh-sha2-nistp521

Server Host Key Algorithms [1 total]

  • ssh-rsa

Encryption Algorithms [13 total]

Counter Mode (CTR) Ciphers

  • aes256-ctr

  • aes192-ctr

  • aes128-ctr

  • 3des-ctr

Cipher Block Chaining (CBC) Ciphers

  • aes256-cbc

  • aes192-cbc

  • aes128-cbc

  • 3des-cbc

  • blowfish-cbc

  • cast128-cbc

Stream Ciphers

  • arcfour256

  • arcfour128

  • arcfour

Message Authentication Code (MAC) Algorithms [10 total]

SHA-1 Based

  • hmac-sha1

  • hmac-sha1-96

MD5 Based

  • hmac-md5

  • hmac-md5-96

SHA-2 Based

  • hmac-sha2-256

  • hmac-sha2-512

  • hmac-sha2-256-96

  • hmac-sha2-512-96

RIPEMD Based

  • hmac-ripemd160

  • hmac-ripemd160-96

Compression Algorithms [1 total]

  • none (No compression)

Security Recommendations

  • Prefer newer key exchange and MAC algorithms with SHA-2 variants

  • Avoid older algorithms like SHA-1 and MD5 when possible

  • Use AES-CTR or AES-CBC modes with 256-bit keys for enhanced security

  • Disable weak ciphers like arcfour and 3des if not required by legacy systems

Note

Actual supported algorithms may vary based on specific server configuration and security policy.

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