libstrongswan-standard-plugins - 5.9.1-1+deb11u4 main

The strongSwan VPN suite uses the native IPsec stack in the standard
Linux kernel. It supports both the IKEv1 and IKEv2 protocols.
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This package provides some common plugins for the strongSwan utility and
cryptograhic library.
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Included plugins are:
- agent (RSA/ECDSA private key backend connecting to SSH-Agent)
- gcm (GCM cipher mode wrapper)
- openssl (Crypto backend based on OpenSSL, provides
RSA/ECDSA/DH/ECDH/ciphers/hashers/HMAC/X.509/CRL/RNG)