Official Android port of the popular strongSwan VPN solution. # FEATURES AND LIMITATIONS # <ul> <li>Uses the VpnService API featured by Android 4+. Devices by some manufacturers seem to lack support for this - strongSwan VPN Client won't work on these devices!</li> <li>Uses the IKEv2 key exchange protocol</li> <li>Uses IPsec for data traffic</li> <li>Full support for changed connectivity and mobility through MOBIKE (or reauthentication)</li> <li>Supports username/password EAP authentication (namely EAP-MSCHAPv2, EAP-MD5 and EAP-GTC) as well as RSA/ECDSA private key/certificate authentication to authenticate users, EAP-TLS with client certificates is also supported</li> <li>Combined RSA/ECDSA and EAP authentication is supported by using two authentication rounds as defined in RFC 4739</li> <li>VPN server certificates are verified against the CA certificates pre-installed or installed by the user on the system. The CA or server certificates used to authenticate the server can also be imported directly into the app.</li> <li>IKEv2 fragmentation is supported if the VPN server supports it (strongSwan does so since 5.2.1)</li> <li>Split-tunneling allows sending only certain traffic through the VPN and/or excluding specific traffic from it</li> <li>Per-app VPN allows limiting the VPN connection to specific apps, or exclude them from using it</li> <li>The IPsec implementation currently supports the AES-CBC, AES-GCM, ChaCha20/Poly1305 and SHA1/SHA2 algorithms</li> <li>Passwords are currently stored as cleartext in the database (only if stored with a profile)</li> <li>VPN profiles may be imported from files</li> <li>Supports managed configurations via enterprise mobility management (EMM)</li> </ul> Details and a changelog can be found in our documentation: https://docs.strongswan.org/docs/latest/os/androidVpnClient.html # PERMISSIONS # <ul> <li>READ_EXTERNAL_STORAGE: Allows importing VPN profiles and CA certificates from external storage on some Android ve