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Minimal client

Dave Gauer dave at ratfactor.com

Mon Jul 6 15:09:17 BST 2020

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On 7/1/20 6:06 PM, Phil Leblanc wrote:

Hi all,

I am looking for a solution to build a _small_, _statically linked_,

minimal gemini client. My focus at the moment is to implement the

basic communication layer (including TLS!): just enough to send a

request to a gemini host and receive a response.

I have long been planning to do the same thing, but haven't even started. The plan was to write it in Rust and use this:

https://github.com/ctz/rustls

Copied from README.md:=================================================================## Current features

TLS1.2 and TLS1.3.* ECDSA, Ed25519 or RSA server authentication by clients.* ECDSA, Ed25519 or RSA server authentication by servers.* Forward secrecy using ECDHE; with curve25519, nistp256 or nistp384 curves.* AES128-GCM and AES256-GCM bulk encryption, with safe nonces.* ChaCha20-Poly1305 bulk encryption ([RFC7905](https://tools.ietf.org/html/rfc7905)).* ALPN support.* SNI support.* Tunable MTU to make TLS messages match size of underlying transport.* Optional use of vectored IO to minimise system calls.* TLS1.2 session resumption.* TLS1.2 resumption via tickets (RFC5077).* TLS1.3 resumption via tickets or session storage.* TLS1.3 0-RTT data for clients.* Client authentication by clients.* Client authentication by servers.* Extended master secret support (RFC7627).* Exporters (RFC5705).* OCSP stapling by servers.* SCT stapling by servers.* SCT verification by clients.=================================================================

Statically linked, yes. But I have no idea if it would meet the _small_ goal!

-Dave