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Here is full list of various ciphers / algorithms used by our SFTP Task and SFTP Connection Manager for Secure FTP.
Basically there are 4 main categories of SFTP Protocol where can tweak ciphers/algorithms used during negotiation phase.
- Key Exchange Algorithms
- Mac Ciphers
- Encryption Ciphers
- Host Key Algorithms
Key Exchange Algorithms
[su_table]
Cipher ID Key length Description diffie-hellman-group-exchange-sha256 Negotiated Diffie Hellman with group exchange and SHA-256 hash diffie-hellman-group16-sha512 4096 bits Diffie Hellman with Oakley Group 16 and SHA-512 hash diffie-hellman-group15-sha512 3072 bits Diffie Hellman with Oakley Group 15 and SHA-512 hash diffie-hellman-group14-sha256 2048 bits Diffie Hellman with Oakley Group 14 and SHA-256 hash diffie-hellman-group-exchange-sha1 Negotiated Diffie Hellman with group exchange and SHA-1 hash diffie-hellman-group14-sha1 2048 bits Diffie Hellman with Oakley Group 14 and SHA-1 hash diffie-hellman-group1-sha1 1024 bits Diffie Hellman with Oakley Group 2 and SHA-1 hash ecdh-sha2-nistp256 256 bits Elliptic Curve Diffie Hellman with NIST P-256 curve and SHA-256 hash ecdh-sha2-nistp384 384 bits Elliptic Curve Diffie Hellman with NIST P-384 curve and SHA-384 hash ecdh-sha2-nistp521 521 bits Elliptic Curve Diffie Hellman with NIST P-521 curve and SHA-512 hash curve25519-sha256@libssh.org 256 bits Elliptic Curve Diffie-Hellman on Curve25519 with SHA-256 hash [/su_table]
Mac Ciphers
[su_table]
Cipher ID Description Note hmac-sha2-256 SHA-256 hmac-sha2-512 SHA-512 hmac-sha1 SHA-1 hmac-md5 MD5 Disabled by default. hmac-sha1-96 SHA-1 (trimmed to 96 bits) Disabled by default. hmac-md5-96 MD5 (trimmed to 96 bits) Disabled by default. [/su_table]
Encryption Ciphers
[su_table]
Cipher ID Description Note aes256-ctr AES in CTR mode with 256-bit key aes192-ctr AES in CTR mode with 192-bit key aes128-ctr AES in CTR mode with 128-bit key aes256-cbc AES in CBC mode with 256-bit key aes192-cbc AES in CBC mode with 192-bit key aes128-cbc AES in CBC mode with 128-bit key 3des-ctr TripleDES in CTR mode 3des-cbc TripleDES in CBC mode twofish256-ctr Twofish in CTR mode with 256-bit key twofish192-ctr Twofish in CTR mode with 192-bit key twofish128-ctr Twofish in CTR mode with 128-bit key twofish256-cbc Twofish in CBC mode with 256-bit key twofish192-cbc Twofish in CBC mode with 192-bit key twofish128-cbc Twofish in CBC mode with 128-bit key twofish-cbc Twofish in CBC mode with 256-bit key Disabled by default. blowfish-ctr Twofish in CTR mode with 256-bit key Disabled by default. blowfish-cbc Blowfish in CBC mode with 128-bit key Disabled by default. arcfour256 ArcFour (RC4) stream cipher (with discard step) with 256-bit key Disabled by default. arcfour128 ArcFour (RC4) stream cipher (with discard step) with 128-bit key Disabled by default. arcfour ArcFour (RC4) stream cipher with 128-bit key Disabled by default. [/su_table]
Host Key Algorithms
[su_table]
Cipher ID Description ssh-dss NIST Digital Signature Algorithm (DSA) with SHA-1 hash ssh-rsa RSA with SHA-1 hash ssh-rsa-sha256@ssh.com RSA with SHA-256 hash rsa-sha2-256 RSA with SHA-256 hash rsa-sha2-512 RSA with SHA-512 hash x509v3-sign-rsa-sha256@ssh.com X509 certificate with RSA and SHA-256 hash x509v3-sign-rsa X509 certificate with RSA and SHA-1 hash x509v3-sign-dss X509 certificate with DSA and SHA-1 hash ecdsa-sha2-nistp256 Elliptic Curve Digital Signature Algorithm (ECDSA) on NIST P-256 curve with SHA-256 hash ecdsa-sha2-nistp384 Elliptic Curve Digital Signature Algorithm (ECDSA) on NIST P-384 curve with SHA-384 hash ecdsa-sha2-nistp521 Elliptic Curve Digital Signature Algorithm (ECDSA) on NIST P-521 curve with SHA-512 hash ssh-ed25519 Ed25519, an Edwards-curve Digital Signature Algorithm (EdDSA) [/su_table]
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