V8.00.000.2025.06.17

Signed-off-by: Marc S. Weidner <msw@coresecret.dev>

func/4165_kernel_modules.sh

@@ -10,9 +10,6 @@
 # SPDX-PackageName: CISS.debian.installer
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Options in "GRUB_CMDLINE_LINUX" are always effective.
-### Options in "GRUB_CMDLINE_LINUX_DEFAULT" are effective ONLY during normal boot (NOT during recovery mode).
-
 guard_sourcing
 
 #######################################
@@ -28,6 +25,13 @@ setup_kernel_modules() {
   ### Entropy collection improvements
   mkdir -p "${TARGET}/usr/lib/modules-load.d"
   cat << EOF >| "${TARGET}/usr/lib/modules-load.d/30_security-misc.conf"
+## The jitterentropy_rng kernel module provides a reliable and hardware-independent source of cryptographic entropy by measuring
+## minute variations in CPU execution timing (jitter). These microsecond-level differences are unpredictable and rooted in
+## physical randomness, making them suitable for high-quality entropy generation. Unlike other RNG methods that rely on hardware
+## features like TPMs or Intel's RDRAND—which may not be available or trusted—jitterentropy_rng works across all platforms,
+## including virtual machines and air-gapped systems. It is compliant with NIST SP 800-90B and BSI TR-02102-4, ensuring secure
+## entropy even during early boot stages, such as in initramfs or before full userland is available. It is the most secure,
+## standards-compliant, and universally applicable entropy source for hardened Linux environments.
 ## https://www.whonix.org/wiki/Dev/Entropy
 ## https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=927972
 ## https://forums.whonix.org/t/jitterentropy-rngd/7204
@@ -37,4 +41,21 @@ EOF
   do_log "info" "true" "Installed: '/usr/lib/modules-load.d/30_security-misc.conf'."
   return 0
 }
+
+#######################################
+# Blacklist some kind of potential hazardous modules via '/etc/modprobe.d/0000_ciss_debian_installer.conf'.
+# Globals:
+#   TARGET
+#   VAR_SETUP_PATH
+# Arguments:
+#   None
+# Returns:
+#   0: on success
+#######################################
+setup_modprobe() {
+ install -D -m 0755 -o root -g root "${VAR_SETUP_PATH}/includes/etc/modprobe.d/0000_ciss_debian_installer.cnf" \
+    "${TARGET}/etc/modprobe.d/0000_ciss_debian_installer.conf"
+  do_log "info" "true" "Installed: '/etc/modprobe.d/0000_ciss_debian_installer.conf'."
+  return 0
+}
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