diff --git a/security/security_levels.adoc b/security/security_levels.adoc
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+= Security Levels
+
+Version: 1.0.0.4
+
+== S0
+Intended access: Public
+
+Encryption: None
+
+Signing: Optional
+
+== S1
+Intended access: Authorised users of S1 or lower security levels
+
+Encryption: Enforced
+
+Signing: Enforced
+
+Permitted symmetrical encryption ciphers (order of preference):
+
+* AES
+* ChaCha20*
+* Twofish
+
+== S2
+Intended access: Authorised users of S2 or lower security levels
+
+Encryption: Enforced
+
+Signing: Enforced
+
+Permitted symmetrical encryption ciphers (order of preference):
+
+* AES
+* ChaCha20*
+* Twofish
+
+== S3
+Intended access: Authorised users of s3 or lower security levels
+
+Encryption: Enforced
+
+Signing: Enforced
+
+Permitted symmetrical encryption ciphers (order of preference):
+
+* AES
+* ChaCha20*
+
+== S4
+Intended access: Authorised users of s4 or lower security levels
+
+Encryption: Enforced
+
+Signing: Enforced
+
+Permitted symmetrical encryption ciphers (order of preference):
+
+* AES
+* ChaCha20*
+
+*Preferred when hardware-accelerated AES is unavailable.
diff --git a/security/security_levels.html b/security/security_levels.html
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-
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- Security Levels
-
-
- Security Levels
- S0
- Intended access: Public
- Encryption: None
- Signing: Optional
- S1
- Intended access: Authorised users of S1 or lower security levels
- Encryption: Enforced
- Signing: Enforced
- Permitted symmetrical encryption ciphers (order of preference):
-
- - AES
- - ChaCha20*
- - Twofish
-
- S2
- Intended access: Authorised users of S2 or lower security levels
- Encryption: Enforced
- Signing: Enforced
- Permitted symmetrical encryption ciphers (order of preference):
-
- - AES
- - ChaCha20*
- - Twofish
-
- S3
- Intended access: Authorised users of s3 or lower security levels
- Encryption: Enforced
- Signing: Enforced
- Permitted symmetrical encryption ciphers (order of preference):
-
- - AES
- - ChaCha20*
-
- S4
- Intended access: Authorised users of s4 or lower security levels
- Encryption: Enforced
- Signing: Enforced
- Permitted symmetrical encryption ciphers (order of preference):
-
- - AES
- - ChaCha20*
-
- *Preferred when hardware-accelerated AES is unavailable.
-
-