diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index d7bc02cbdc1..8c6e8766cd9 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -200,6 +200,7 @@
   ./security/wrappers/default.nix
   ./security/sudo.nix
   ./security/systemd-confinement.nix
+  ./security/tpm2.nix
   ./services/admin/oxidized.nix
   ./services/admin/salt/master.nix
   ./services/admin/salt/minion.nix
diff --git a/nixos/modules/security/tpm2.nix b/nixos/modules/security/tpm2.nix
new file mode 100644
index 00000000000..13804fb82cb
--- /dev/null
+++ b/nixos/modules/security/tpm2.nix
@@ -0,0 +1,185 @@
+{ lib, pkgs, config, ... }:
+let
+  cfg = config.security.tpm2;
+
+  # This snippet is taken from tpm2-tss/dist/tpm-udev.rules, but modified to allow custom user/groups
+  # The idea is that the tssUser is allowed to acess the TPM and kernel TPM resource manager, while
+  # the tssGroup is only allowed to access the kernel resource manager
+  # Therefore, if either of the two are null, the respective part isn't generated
+  udevRules = tssUser: tssGroup: ''
+    ${lib.optionalString (tssUser != null) ''KERNEL=="tpm[0-9]*", MODE="0660", OWNER="${tssUser}"''}
+    ${lib.optionalString (tssUser != null || tssGroup != null)
+      ''KERNEL=="tpmrm[0-9]*", MODE="0660"''
+      + lib.optionalString (tssUser != null) '', OWNER="${tssUser}"''
+      + lib.optionalString (tssGroup != null) '', GROUP="${tssGroup}"''
+     }
+  '';
+
+in {
+  options.security.tpm2 = {
+    enable = lib.mkEnableOption "Trusted Platform Module 2 support";
+
+    tssUser = lib.mkOption {
+      description = ''
+        Name of the tpm device-owner and service user, set if applyUdevRules is
+        set.
+      '';
+      type = lib.types.nullOr lib.types.str;
+      default = if cfg.abrmd.enable then "tss" else "root";
+      defaultText = ''"tss" when using the userspace resource manager,'' +
+                    ''"root" otherwise'';
+    };
+
+    tssGroup = lib.mkOption {
+      description = ''
+        Group of the tpm kernel resource manager (tpmrm) device-group, set if
+        applyUdevRules is set.
+      '';
+      type = lib.types.nullOr lib.types.str;
+      default = "tss";
+    };
+
+    applyUdevRules = lib.mkOption {
+      description = ''
+        Whether to make the /dev/tpm[0-9] devices accessible by the tssUser, or
+        the /dev/tpmrm[0-9] by tssGroup respectively
+      '';
+      type = lib.types.bool;
+      default = true;
+    };
+
+    abrmd = {
+      enable = lib.mkEnableOption ''
+        Trusted Platform 2 userspace resource manager daemon
+      '';
+
+      package = lib.mkOption {
+        description = "tpm2-abrmd package to use";
+        type = lib.types.package;
+        default = pkgs.tpm2-abrmd;
+        defaultText = "pkgs.tpm2-abrmd";
+      };
+    };
+
+    pkcs11 = {
+      enable = lib.mkEnableOption ''
+        TPM2 PKCS#11 tool and shared library in system path
+        (<literal>/run/current-system/sw/lib/libtpm2_pkcs11.so</literal>)
+      '';
+
+      package = lib.mkOption {
+        description = "tpm2-pkcs11 package to use";
+        type = lib.types.package;
+        default = pkgs.tpm2-pkcs11;
+        defaultText = "pkgs.tpm2-pkcs11";
+      };
+    };
+
+    tctiEnvironment = {
+      enable = lib.mkOption {
+        description = ''
+          Set common TCTI environment variables to the specified value.
+          The variables are
+          <itemizedlist>
+            <listitem>
+              <para>
+                <literal>TPM2TOOLS_TCTI</literal>
+              </para>
+            </listitem>
+            <listitem>
+              <para>
+                <literal>TPM2_PKCS11_TCTI</literal>
+              </para>
+            </listitem>
+          </itemizedlist>
+        '';
+        type = lib.types.bool;
+        default = false;
+      };
+
+      interface = lib.mkOption {
+        description = ''
+          The name of the TPM command transmission interface (TCTI) library to
+          use.
+        '';
+        type = lib.types.enum [ "tabrmd" "device" ];
+        default = "device";
+      };
+
+      deviceConf = lib.mkOption {
+        description = ''
+          Configuration part of the device TCTI, e.g. the path to the TPM device.
+          Applies if interface is set to "device".
+          The format is specified in the
+          <link xlink:href="https://github.com/tpm2-software/tpm2-tools/blob/master/man/common/tcti.md#tcti-options">
+          tpm2-tools repository</link>.
+        '';
+        type = lib.types.str;
+        default = "/dev/tpmrm0";
+      };
+
+      tabrmdConf = lib.mkOption {
+        description = ''
+          Configuration part of the tabrmd TCTI, like the D-Bus bus name.
+          Applies if interface is set to "tabrmd".
+          The format is specified in the
+          <link xlink:href="https://github.com/tpm2-software/tpm2-tools/blob/master/man/common/tcti.md#tcti-options">
+          tpm2-tools repository</link>.
+        '';
+        type = lib.types.str;
+        default = "bus_name=com.intel.tss2.Tabrmd";
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable (lib.mkMerge [
+    {
+      # PKCS11 tools and library
+      environment.systemPackages = lib.mkIf cfg.pkcs11.enable [
+        (lib.getBin cfg.pkcs11.package)
+        (lib.getLib cfg.pkcs11.package)
+      ];
+
+      services.udev.extraRules = lib.mkIf cfg.applyUdevRules
+        (udevRules cfg.tssUser cfg.tssGroup);
+
+      # Create the tss user and group only if the default value is used
+      users.users.${cfg.tssUser} = lib.mkIf (cfg.tssUser == "tss") {
+        isSystemUser = true;
+      };
+      users.groups.${cfg.tssGroup} = lib.mkIf (cfg.tssGroup == "tss") {};
+
+      environment.variables = lib.mkIf cfg.tctiEnvironment.enable (
+        lib.attrsets.genAttrs [
+          "TPM2TOOLS_TCTI"
+          "TPM2_PKCS11_TCTI"
+        ] (_: ''${cfg.tctiEnvironment.interface}:${
+          if cfg.tctiEnvironment.interface == "tabrmd" then
+            cfg.tctiEnvironment.tabrmdConf
+          else
+            cfg.tctiEnvironment.deviceConf
+        }'')
+      );
+    }
+
+    (lib.mkIf cfg.abrmd.enable {
+      systemd.services."tpm2-abrmd" = {
+        wantedBy = [ "multi-user.target" ];
+        serviceConfig = {
+          Type = "dbus";
+          Restart = "always";
+          RestartSec = 30;
+          BusName = "com.intel.tss2.Tabrmd";
+          StandardOutput = "syslog";
+          ExecStart = "${cfg.abrmd.package}/bin/tpm2-abrmd";
+          User = "tss";
+          Group = "nogroup";
+        };
+      };
+
+      services.dbus.packages = lib.singleton cfg.abrmd.package;
+    })
+  ]);
+
+  meta.maintainers = with lib.maintainers; [ lschuermann ];
+}