Index: security/Makefile
===================================================================
--- security/Makefile
+++ security/Makefile
@@ -1250,6 +1250,7 @@
     SUBDIR += uacme
     SUBDIR += ubuntu-keyring
     SUBDIR += unhide
+    SUBDIR += unix-selfauth-helper
     SUBDIR += vanguards-tor
     SUBDIR += vault
     SUBDIR += vaultwarden
Index: security/unix-selfauth-helper/Makefile
===================================================================
--- /dev/null
+++ security/unix-selfauth-helper/Makefile
@@ -0,0 +1,19 @@
+# Created by: Felix Palmen <felix@palmen-it.de>
+
+PORTNAME=	unix-selfauth-helper
+PORTVERSION=	1.0
+DISTVERSIONPREFIX=	v
+CATEGORIES=	security
+
+MAINTAINER=	felix@palmen-it.de
+COMMENT=	Local self-authentication for pam_exec
+
+LICENSE=	BSD2CLAUSE
+
+USE_GITHUB=	yes
+GH_ACCOUNT=	Zirias
+
+PLIST_FILES=	libexec/unix-selfauth-helper \
+		man/man8/unix-selfauth-helper.8.gz
+
+.include <bsd.port.mk>
Index: security/unix-selfauth-helper/distinfo
===================================================================
--- /dev/null
+++ security/unix-selfauth-helper/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1653485823
+SHA256 (Zirias-unix-selfauth-helper-v1.0_GH0.tar.gz) = bfba5ca818c835fa9b7f72225165c7419328d1880d30a96eda0e9698a0506a0e
+SIZE (Zirias-unix-selfauth-helper-v1.0_GH0.tar.gz) = 3702
Index: security/unix-selfauth-helper/pkg-descr
===================================================================
--- /dev/null
+++ security/unix-selfauth-helper/pkg-descr
@@ -0,0 +1,5 @@
+This is a little suid-root helper allowing self-authentication against the
+local unix passwd database using pam_exec on a FreeBSD system. As a result,
+the behavior of LinuxPAM is mimicked without changes to the pam_unix module.
+
+WWW: https://github.com/Zirias/unix-selfauth-helper