What are the Cipher Suites (Cryptography configuration), i.e. the Ciphers, Hash, Key-Exchange, Compression and Server Host Key, that are supported by PAM for SSH Access? And what are the default configuration?
Release : PAM All versions
Component : PRIVILEGED ACCESS MANAGEMENT
To find supported SSH Mindterm and SSH Proxy Cipher Suites, you can go to Configuration > Security > Cryptography > SSH Proxy/SSH Mindterm page, click the 'eye' icon to the right of each Cipher/Hash/Key Exchange/Compression/Server Host Key box.
As of this article is written, here are the default and supported Cipher Suites
A. SSH Proxy
Default Cipher:
aes128-gcm@openssh.com,aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr
Supported Cipher:
aes128-gcm@openssh.com,aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr
Default Hash:
hmac-sha2-512,hmac-sha2-256,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com
Supported Hash:
hmac-sha2-512,hmac-sha2-256,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,umac-128@openssh.com,umac-64-etm@openssh.com,umac-64@openssh.com,hmac-sha1,hmac-md5-96,hmac-md5
Default Key Exchange:
ecdh-sha2-nistp384,ecdh-sha2-nistp256,ecdh-sha2-nistp521,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1
Supported Key Exchange:
ecdh-sha2-nistp384,ecdh-sha2-nistp256,ecdh-sha2-nistp521,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,curve25519-sha256,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group1-sha1,diffie-hellman-group-exchange-sha1
Default Compression:
none,zlib@openssh.com,zlib
Supported Compression:
none,zlib@openssh.com,zlib
Default Server Host Key:
ssh-rsa
Supported Server Host Key:
ssh-rsa,ecdsa-sha2-nistp384,ecdsa-sha2-nistp256,ecdsa-sha2-nistp521,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com
B. SSH Mindterm
Default Cipher:
aes128-ctr,aes256-ctr,aes192-ctr,aes128-cbc,aes256-cbc,aes192-cbc
Supported Cipher:
aes128-ctr,aes256-ctr,aes192-ctr,aes128-cbc,aes256-cbc,aes192-cbc,3des-ctr,3des-cbc,blowfish-cbc,blowfish-ctr,arcfour256,arcfour128,arcfour
Default Hash:
hmac-sha2-512,hmac-sha2-256,hmac-sha512@ssh.com,hmac-sha256@ssh.com,hmac-sha256-2@ssh.com
Supported Hash:
hmac-sha2-512,hmac-sha2-256,hmac-sha512@ssh.com,hmac-sha256@ssh.com,hmac-sha256-2@ssh.com,hmac-sha1,hmac-sha1-96,hmac-md5-96,hmac-md5
Default Key Exchange:
ecdh-sha2-nistp384,ecdh-sha2-nistp256,ecdh-sha2-nistp521,diffie-hellman-group14-sha1
Supported Key Exchange:
ecdh-sha2-nistp384,ecdh-sha2-nistp256,ecdh-sha2-nistp521,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha256,diffie-hellman-group1-sha1,diffie-hellman-group-exchange-sha1
Default Compression:
none,zlib@openssh.com,zlib
Supported Compression:
none,zlib@openssh.com,zlib
Default Server Host Key:
ssh-rsa
Supported Server Host Key:
ssh-rsa,ecdsa-sha2-nistp384,ecdsa-sha2-nistp256,ecdsa-sha2-nistp521,ssh-dss