SSH

Supported Cryptographic Algorithms, Protocols, and Standards

Tectia client/server solution supports the following cryptographic algorithms and standards.

Table 6.5. Tectia client/server solution supports the following algorithms

Used forAlgorithm
Key exchangeSHA-1:diffie-hellman-group1-sha1
diffie-hellman-group14-sha1
diffie-hellman-group-exchange-sha1
SHA-2:diffie-hellman-group-exchange-sha256
diffie-hellman-group14-sha224@ssh.com
diffie-hellman-group14-sha256@ssh.com
diffie-hellman-group15-sha256@ssh.com[a]
diffie-hellman-group15-sha384@ssh.com[a]
diffie-hellman-group16-sha384@ssh.com
diffie-hellman-group16-sha512@ssh.com
diffie-hellman-group18-sha512@ssh.com
diffie-hellman-group-exchange-sha224@ssh.com
diffie-hellman-group-exchange-sha384@ssh.com
diffie-hellman-group-exchange-sha512@ssh.com
Elliptic curve: ecdh-sha2-nistp256 [a]
ecdh-sha2-nistp384 [a]
ecdh-sha2-nistp521 [a]
Public keyRSA (1024, 2048, 3072, 4096, 5120, 6144, 7168, 8192 bits)
DSA (1024, 2048, 3072 bits)
ECDSA (256, 384, 521 bits) [a]
Data integrityCryptiCore (Badger) (16-byte key)
hmac md5 (16-byte key)
hmac md5-96 (16-byte key)
hmac sha-1 (20-byte key, FIPS PUB 198)
hmac sha-1-96 (20-byte key, FIPS PUB 198)
hmac-sha2-256 (32-byte key, FIPS PUB 180-3)
hmac-sha2-512 (64-byte key, FIPS PUB 180-3)
hmac sha224@ssh.com (28-byte key, FIPS PUB 198)
hmac sha256@ssh.com (16-byte key, FIPS PUB 198)
hmac sha256-2@ssh.com (32-byte key, FIPS PUB 198)
hmac sha384@ssh.com (48-byte key, FIPS PUB 198)
hmac sha512@ssh.com (64-byte key, FIPS PUB 198)
Session encryption3DES (168-bit key)
AES (128-, 192-, or 256-bit key, CBC or CTR mode)
Arcfour (128-bit key)
Blowfish (128-bit key)
CryptiCore (Rabbit) (128-bit key)
SEED (128-bit key)
Twofish (128-, 192-, or 256-bit key)

[a] Due to issues in the OpenSSL library, this algorithm is not supported in FIPS mode on HP-UX PA-RISC and IBM AIX.