Plugin List

acert

s

Support of X.509 attribute certificates

aes

s

AES-128/192/256 cipher software implementation

aesni

s

Intel AES-NI crypto plugin

af-alg

s

AF_ALG Linux kernel crypto API

agent

s

RSA/ECDSA private key backend connecting to ssh-agent

blowfish

s

Blowfish cipher software implementation

botan

s

Crypto backend based on the Botan library

ccm

s

CCM cipher mode wrapper

chapoly

s

ChaCha20/Poly1305 AEAD implementation and ChaCha20 XOF

cmac

x

s

CMAC cipher mode wrapper

constraints

x

s

X.509 certificate advanced constraint checking

ctr

s

CTR cipher mode wrapper

curl

s

libcurl based HTTP/FTP fetcher

curve25519

s

X25519 DH group and Ed25519 public key authentication

des

s

DES/3DES cipher software implementation

dnskey

x

s

Parse DNS public keys

drbg

x

s

NIST Deterministic Random Bit Generator based on AES-CTR and HMAC-SHA2 modes

files

s

Fetcher for local file:// URIs

fips-prf

s

PRF specified by FIPS, used by EAP-SIM/AKA algorithms

gcm

s

GCM cipher mode wrapper

gcrypt

s

Crypto backend based on libgcrypt

gmp

s

RSA/DH crypto backend based on libgmp

hmac

s

HMAC wrapper using various hashers

kdf

x

s

IKEv2 key derivation wrapper using various PRFs

keychain

e

macOS Keychain Services credential set

ldap

s

LDAP fetching plugin based on libldap

md4

s

MD4 hasher software implementation

md5

s

MD5 hasher software implementation

mgf1

s

MGF1 mask generation function

ml

e

Module-Lattice-based crypto (ML-KEM)

mysql

s

MySQL database backend based on libmysqlclient

nonce

x

s

Default nonce generation plugin

openssl

x

s

Crypto backend based on the OpenSSL library

openxpki

s

OCSP responder accessing OpenXPKI MySQL/MariaDB certificate database

padlock

e

VIA padlock crypto backend, provides AES128/SHA1

pem

x

s

PEM encoding/decoding routines

pgp

x

s

PGP encoding/decoding routines

pkcs1

x

s

PKCS#1 encoding/decoding routines

pkcs7

x

s

PKCS#7 encoding/decoding routines

pkcs8

x

s

PKCS#8 decoding routines

pkcs11

s

PKCS#11 smart card backend

pkcs12

s

PKCS#12 decoding routines

pubkey

x

s

Wrapper to handle raw public keys as trusted certificates

random

x

s

RNG reading from /dev/[u]random

rc2

s

RC2 cipher software implementation

rdrand

e

High quality / high performance random source using the Intel rdrand instruction

revocation

x

s

X.509 CRL/OCSP revocation checking

sha1

s

SHA1 hasher software implementation

sha2

s

SHA-2 hasher software implementation

sha3

s

SHA-3 hasher and SHAKE128/SHAKE256 XOF software implementation

soup

s

libsoup based HTTP fetcher

sqlite

s

SQLite database backend based on libsqlite3

sshkey

x

s

SSH key decoding routines

test-vectors

s

Set of test vectors for various algorithms

unbound

s

DNSSEC enabled resolver using libunbound

winhttp

s

WinHTTP based HTTP/HTTPS fetcher for Windows platform

wolfssl

s

Crypto backend based on the wolfSSL library

x509

x

s

Advanced X.509 plugin for parsing/generating X.509 certificates/CRLs and OCSP messages

xcbc

x

s

XCBC wrapper using various ciphers

addrblock

s

Narrow traffic selectors to RFC 3779 address blocks in X.509 certificates

android-dns

s

Android-specific DNS handler plugin

android-log

s

Android-specific logger plugin

attr

x

s

Provides IKE attributes configured in strongswan.conf

attr-sql

s

Provides IKE attributes read from a database to peers

bypass-lan

e

Automatically installs and updates bypass policies for locally attached subnets

certexpire

s

Export expiration dates of used certificates

connmark

e

Plugin using Netfilter conntrack marks to handle multiple transport mode clients (for L2TP)

counters

s

Provides IKE performance counters (queryable via vici and e.g. the swanctl --counters command

coupling

s

Permanent peer certificate coupling

dhcp

s

Request virtual IP address from a DHCP server

dnscert

s

Provides authentication via CERT RRs protected by DNSSEC

duplicheck

s

Advanced duplicate checking with liveness test and notifications

eap-aka

s

Generic EAP-AKA protocol handler using different backends

eap-aka-3gpp

s

EAP-AKA backend implementing 3GPP MILENAGE algorithms in software

eap-aka-3gpp2

s

EAP-AKA backend implementing 3GPP2 algorithms in software

eap-dynamic

s

EAP proxy plugin that dynamically selects an EAP method requested/supported by the client

eap-gtc

s

EAP-GTC protocol handler authenticating with XAuth backends

eap-identity

s

EAP-Identity identity exchange algorithm, to use with other EAP protocols

eap-md5

s

EAP-MD5 protocol handler using passwords

eap-mschapv2

s

EAP-MSCHAPv2 protocol handler using passwords/NT hashes

eap-peap

s

EAP-PEAP protocol handler, wraps other EAP methods securely

eap-radius

s

EAP server proxy plugin forwarding EAP conversations to a RADIUS server

eap-sim

s

Generic EAP-SIM protocol handler using different backends

eap-sim-file

s

EAP-SIM backend reading triplets from a file

eap-sim-pcsc

s

EAP-SIM backend based on a PC/SC smartcard reader

eap-simaka-pseudonym

s

EAP-SIM/AKA in-memory pseudonym identity database

eap-simaka-reauth

s

EAP-SIM/AKA in-memory reauthentication identity database

eap-simaka-sql

s

EAP-SIM/AKA backend reading triplets/quintuplets from a SQL database

eap-tls

s

EAP-TLS protocol handler, to authenticate with certificates in EAP

eap-tnc

s

EAP-TNC protocol handler, Trusted Network Connect in a TLS tunnel

eap-ttls

s

EAP-TTLS protocol handler, wraps other EAP methods securely

error-notify

s

Notification about errors via UNIX socket

ext-auth

s

Invokes an external script for custom authorization rules

farp

s

Fakes ARP responses for requests to a virtual IP assigned to a peer

forecast

e

Multicast and broadcast forwarding plugin

ha

s

High Availability clustering

ipseckey

s

Provides authentication via IPSECKEY RRs protected by DNSSEC

kernel-libipsec

e

IPsec "kernel" interface in user-space using libipsec

kernel-netlink

x

s

IPsec/Networking kernel interface using Linux Netlink

kernel-iph

e

Networking backend for the Windows platform, based on IPHelper APIs

kernel-pfkey

e

IPsec kernel interface using PF_KEY

kernel-pfroute

e

Networking kernel interface using PF_ROUTE

kernel-wfp

e

IPsec backend for the Windows platform, using the Windows Filtering Platform

led

s

Let Linux LED subsystem LEDs blink on IKE activity

load-tester

s

Perform IKE load tests against self or a gateway

lookip

s

Virtual IP lookup facility using a UNIX socket

medcli

d

Web interface based mediation client interface

medsrv

d

Web interface based mediation server interface

osx-attr

e

macOS SystemConfiguration attribute handler

p-cscf

s

Plugin that requests P-CSCF server addresses from an ePDG (RFC 7651)

radattr

s

Plugin to inject and process custom RADIUS attributes as IKEv2 client

resolve

x

s

Writes name servers received via IKE to a resolv.conf file or installs them via resolvconf(8)

save-keys

s

Development/Debugging plugin that saves IKE and/or ESP keys to files compatible with Wireshark

selinux

s

SELinux support plugin for labeled IPsec

smp

d

XML based strongSwan Management Protocol

socket-default

x

s

Default socket implementation for IKE messages

socket-dynamic

e

Dynamic binding socket implementation, capable of sending IKE messages on any port

socket-win

s

Socket implementation for IKE messages on Windows, based on Winsock2 APIs

sql

s

SQL configuration backend reading configurations/credentials from a database

stroke

s

Deprecated stroke configuration/control backend, to use with ipsec script and starter

tnc-ifmap

s

TNC IF-MAP 2.0 client

tnc-pdp

s

TNC Policy Decision Point with RADIUS server interface

systime-fix

s

Handle invalid system time when checking certificates

uci

d

OpenWRT UCI configuration backend

unity

s

Cisco Unity extensions for IKEv1

updown

x

s

Shell script invocation during tunnel up/down events

vici

x

s

Versatile IKE Control Interface

whitelist

s

Check authenticated identities against a whitelist

xauth-eap

s

XAuth backend that uses EAP methods to verify passwords

xauth-generic

x

s

Generic XAuth backend that provides passwords from credential sets

xauth-noauth

s

XAuth backend that does not do any authentication

xauth-pam

s

XAuth backend that uses PAM modules to verify passwords

tpm

s

Access persistent RSA and ECDSA private keys bound to a TPM 2.0. Optionally use the TPM 2.0 as a true random number source.

tnccs-11

s

TNC Client-Server (TNCCS) protocol version 1.1

tnccs-20

s

TNC Client-Server (TNCCS) protocol version 2.0

tnccs-dynamic

s

TNC Client-Server (TNCCS) dynamic protocol discovery

tnc-tnccs

s

Manages the TNC Client-Server (TNCCS) connection layer

tnc-imc

s

Manages TNC Integrity Measurement Collectors (IMCs)

tnc-imv

s

Manages TNC Integrity Measurement Validators (IMVs)

cmac

x

s

CMAC cipher mode wrapper

constraints

x

s

X.509 certificate advanced constraint checking

dnskey

x

s

Parse RFC 4034 public keys

drbg

x

s

NIST Deterministic Random Bit Generator based on AES-CTR and HMAC-SHA2 modes. Required by the gmp plugin

kdf

x

s

IKEv2 key derivation wrapper using various PRFs

nonce

x

s

Default nonce generation plugin

openssl

x

s

Crypto backend based on the OpenSSL library

pem

x

s

PEM encoding/decoding routines

pgp

x

s

PGP encoding/decoding routines

pkcs1

x

s

PKCS#1 encoding/decoding routines

pkcs7

x

s

PKCS#7 encoding/decoding routines

pkcs8

x

s

PKCS#8 decoding routines

pubkey

x

s

Wrapper to handle raw public keys as trusted certificates

random

x

s

RNG reading from /dev/[u]random

revocation

x

s

X.509 CRL/OCSP revocation checking

sshkey

x

s

SSH key decoding routines

x509

x

s

Advanced X.509 plugin for parsing/generating X.509 certificates/CRLs and OCSP messages

xcbc

x

s

XCBC wrapper using various ciphers

libstrongswan

18

attr

x

s

Provides IKE attributes configured in strongswan.conf

kernel-netlink

x

s

IPsec/Networking kernel interface using Linux Netlink

resolve

x

s

Writes name servers received via IKE to a resolv.conf file or installs them via resolvconf(8)

socket-default

x

s

Default socket implementation for IKE messages

updown

x

s

Shell script invocation during tunnel up/down events

vici

x

s

Versatile IKE Control Interface

xauth-generic

x

s

Generic XAuth backend that provides passwords from credential sets

libcharon

7