X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=doc%2Fabout.texi;fp=doc%2Fabout.texi;h=e04faa1853f012d6ad8de685fb4a361c8084742a;hb=4bcd0ea28d3c22487f596653c6c3b36e47123503;hp=ded06b642e2267f876cc66bcb4209c04ed176701;hpb=9fa1b71f7fce6f87bc03a39421bfde2c5f46a76a;p=govpn.git diff --git a/doc/about.texi b/doc/about.texi index ded06b6..e04faa1 100644 --- a/doc/about.texi +++ b/doc/about.texi @@ -3,68 +3,89 @@ aimed to be reviewable, secure and @url{https://en.wikipedia.org/wiki/Deep_packet_inspection, DPI}/censorship-resistant. @itemize + @item Copylefted free software: licenced under @url{https://www.gnu.org/licenses/gpl-3.0.html, GPLv3+}. + @item Fast strong @ref{PAKE, passphrase authenticated} augmented @ref{Handshake, key agreement protocol} with zero-knowledge mutual peers authentication (PAKE DH A-EKE (Diffie-Hellman Augmented Encrypted Key Exchange)). + @item @ref{Verifier structure, Augmented authentication tokens} resistant to offline dictionary attacks. They use CPU and memory hardened hashing algorithm. An attacker can not masquerade a client even with server passphrase verifiers compromising. + @item Encrypted and authenticated @ref{Transport, payload transport} with 128-bit @ref{Developer, security margin} state-of-the-art cryptography. + @item Optional @ref{Encless, encryptionless mode} of operation: no encryption functions are applied for outgoing traffic, but still confidentiality preserving encoding. Jurisdictions and courts can not either force you to reveal encryption keys or sue for encryption usage. + @item Censorship resistant handshake and transport messages: fully indistinguishable from the noise with optionally hidden packets length. + @item @url{https://en.wikipedia.org/wiki/Forward_secrecy, Perfect forward secrecy} property. + @item Replay attack protection (using one-time MACs). + @item Built-in rehandshake (session key rotation) and heartbeat features. + @item Ability to hide packets length with the @ref{Noise, noise} data. + @item Ability to hide payload timestamps with @ref{CPR, constant packet rate} traffic. + @item Compatible with @url{http://egd.sourceforge.net/, EGD} (entropy gathering daemon) PRNGs. + @item Several simultaneous clients support with per-client configuration options. Clients have pre-established @ref{Identity, identity} invisible for third-parties (they are anonymous). + @item Uses @url{https://en.wikipedia.org/wiki/TAP_(network_driver), TAP} underlying network interfaces. + @item Can use @ref{Network, UDP and TCP} or HTTP @ref{Proxy, proxies} for accessing the server. + @item Fully IPv4 and IPv6 compatible. + @item Optional built-in HTTP-server for retrieving real-time @ref{Stats, statistics} information about known connected peers in @url{http://json.org/, JSON} format. + @item Server is configured through the @url{http://yaml.org/, YAML} file. + @item Written on @url{https://golang.org/, Go} programming language with simple code that can be read and reviewed. + @item @url{https://www.gnu.org/, GNU}/Linux and @url{https://www.freebsd.org/, FreeBSD} support. + @end itemize