Install libstrongswan by entering the following commands in the terminal:
sudo apt update sudo apt install libstrongswan
Description:
strongSwan utility and crypto library
The strongSwan VPN suite uses the native IPsec stack in the standard Linux kernel. It supports both the IKEv1 and IKEv2 protocols. . This package provides the underlying libraries of charon and other strongSwan components. It is built in a modular way and is extendable through various plugins. . Some default (as specified by the strongSwan projet) plugins are included. For libstrongswan (cryptographic backends, URI fetchers and database layers): - aes (AES-128/192/256 cipher software implementation) - constraints (X.509 certificate advanced constraint checking) - dnskey (Parse RFC 4034 public keys) - fips-prf (PRF specified by FIPS, used by EAP-SIM/AKA algorithms) - gmp (RSA/DH crypto backend based on libgmp) - hmac (HMAC wrapper using various hashers) - md4 (MD4 hasher software implementation) - md5 (MD5 hasher software implementation) - mgf1 (Mask Generation Functions based on the SHA-1, SHA-256 and SHA-512) - nonce (Default nonce generation plugin) - pem (PEM encoding/decoding routines) - pgp (PGP encoding/decoding routines) - pkcs1 (PKCS#1 encoding/decoding routines) - pkcs8 (PKCS#8 decoding routines) - pkcs12 (PKCS#12 decoding routines) - pubkey (Wrapper to handle raw public keys as trusted certificates) - random (RNG reading from /dev/[u]random) - rc2 (RC2 cipher software implementation) - revocation (X.509 CRL/OCSP revocation checking) - sha1 (SHA1 hasher software implementation) - sha2 (SHA256/SHA384/SHA512 hasher software implementation) - sshkey (SSH key decoding routines) - x509 (Advanced X.509 plugin for parsing/generating X.509 certificates/CRLs and OCSP messages) - xcbc (XCBC wrapper using various ciphers) - attr (Provides IKE attributes configured in strongswan.conf) - kernel-netlink [linux] (IPsec/Networking kernel interface using Linux Netlink) - kernel-pfkey [kfreebsd] (IPsec kernel interface using PF_KEY) - kernel-pfroute [kfreebsd] (Networking kernel interface using PF_ROUTE) - resolve (Writes name servers received via IKE to a resolv.conf file or installs them via resolvconf(8)) . Also included is the libtpmtss library adding support for TPM plugin (https://wiki.strongswan.org/projects/strongswan/wiki/TpmPlugin)
Homepage: http://www.strongswan.org
Version: 5.6.2-1ubuntu2
Section: net