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# 1. CISS.debian.live.builder

**Centurion Intelligence Consulting Agency Information Security Standard**<br>
*Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
**Master Version**: 8.13<br>
**Build**: V8.13.256.2025.10.21<br>

# 2. SSH Audit by ssh-audit.com

![CISS.2025.debian.live.builder](https://git.coresecret.dev/msw/CISS.debian.live.builder/src/branch/master/docs/screenshots/CISS.debian.live.builder_ssh_audit.png)

# 3. SSH Audit by https://github.com/jtesta/ssh-audit

````text
# general
(gen) banner: SSH-2.0-OpenSSH_9.2p1
(gen) software: OpenSSH 9.2p1
(gen) compatibility: OpenSSH 9.9+, Dropbear SSH 2020.79+
(gen) compression: disabled

# key exchange algorithms
(kex) sntrup761x25519-sha512@openssh.com  -- [info] available since OpenSSH 8.5
                                          `- [info] default key exchange from OpenSSH 9.0 to 9.8
                                          `- [info] hybrid key exchange based on post-quantum resistant algorithm and proven conventional X25519 algorithm
(kex) sntrup761x25519-sha512              -- [info] available since OpenSSH 9.9
                                          `- [info] default key exchange since OpenSSH 9.9
                                          `- [info] hybrid key exchange based on post-quantum resistant algorithm and proven conventional X25519 algorithm
(kex) kex-strict-s-v00@openssh.com        -- [info] pseudo-algorithm that denotes the peer supports a stricter key exchange method as a counter-measure to the Terrapin attack (CVE-2023-48795)

# host-key algorithms
(key) ssh-ed25519                         -- [info] available since OpenSSH 6.5, Dropbear SSH 2020.79
(key) rsa-sha2-512                        -- [info] available since OpenSSH 7.2
(key) rsa-sha2-256                        -- [info] available since OpenSSH 7.2, Dropbear SSH 2020.79

# encryption algorithms (ciphers)
(enc) aes256-gcm@openssh.com              -- [info] available since OpenSSH 6.2
(enc) aes256-ctr                          -- [info] available since OpenSSH 3.7, Dropbear SSH 0.52

# message authentication code algorithms
(mac) hmac-sha2-512-etm@openssh.com       -- [info] available since OpenSSH 6.2
(mac) hmac-sha2-256-etm@openssh.com       -- [info] available since OpenSSH 6.2

# algorithm recommendations (for OpenSSH 9.2)
(rec) +aes128-ctr                         -- enc algorithm to append
(rec) +aes128-gcm@openssh.com             -- enc algorithm to append
(rec) +aes192-ctr                         -- enc algorithm to append
````

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