Binary package “strongswan-plugin-af-alg” in ubuntu trusty

strongSwan plugin for AF_ALG Linux crypto API interface

 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 AF_ALG Linux crypto API interface plugin for
 strongSwan. It provides ciphers/hashers/hmac/xcbc.