From aaa99360be3a7004d0f1e1cf9268ad4c404a8cf7 Mon Sep 17 00:00:00 2001
From: Russ Magee <rmagee@gmail.com>
Date: Thu, 11 Jan 2018 21:32:55 -0800
Subject: [PATCH] Made server.go and serverp.go (plaintext net example) use
 same bufsize

---
 README.md       | 41 +++++++++++++++++++++++++++++------------
 demo/serverp.go |  2 +-
 2 files changed, 30 insertions(+), 13 deletions(-)

diff --git a/README.md b/README.md
index b325288..4ed965c 100644
--- a/README.md
+++ b/README.md
@@ -1,16 +1,33 @@
-This is an implementation of the 'HerraduraKEx' key exchange algorithm in golang.
-See github.com/Caume/HerraduraKEx
+This is a drop-in replacement for the golang/pkg/net facilities
+(net.Dial(), net.Listen(), net.Accept() and net.Conn type) using the
+experimental HerraduraKEx 'secure' key exchange algorithm, first released at
+github.com/Caume/HerraduraKEx
 
-package herradurakex is a simple golang library to manage key exchanges using the algorithm
-and (TODO) wraps/extends golang.org/pkg/net/, Listener interface, Dial/Accept methods by
-providing a HKexConn built on top of the vanilla Conn.
+One can simply replace calls to net.Dial() with hkex.Dial(), and likewise
+net.Listen() with hkex.Listen(), to obtain connections (hkex.Conn) conforming
+to the basic net.Conn interface. Upon Dial(), the HerraduraKEx key exchange
+is initiated (whereby client and server independently derive the same
+keying material) and session algorithms to be used are exchanged allowing an
+encrypted channel between client and server.
 
-Theory:
-1. Build a standard pkg/net/ Conn c
-2. Build a HKexConn passing in Conn hc (HKexConn implements io.Reader,io.Writer)s
-3. Dial/Listen on hc (it will do the KEx and store session key, negotiate crypto alg.)
-4. Call any pkg/net ops as usual using HKexConn
+NOTE: the terms 'secure' and 'securely' where used above are purposely
+enclosed in singled quotes due to the experimental nature of the HerraduraKEx
+algorithm used to derive crypto keying material on each end.
+As of this time no verdict by acknowledged 'crypto experts' as to the true
+security of the HerraduraKEx algorithm for purposes of session key exchange
+over an insecure channel has been rendered.
+It is hoped that such experts in the field will analyze the algorithm and
+determine if it is indeed a suitable one for use in situations where
+Diffie-Hellman key exchange is currently utilized.
 
+To run
+--
+$ go get <tbd>/herradurakex.git
+$ cd $GOPATH/src/<tbd>/herradurakex
+$ go install .
+$ cd demo/
+$ go build client.go && go build server.go
 
-? -rlm 2018-01-06
-
+[ in separate shell windows ]
+[A]$ ./server
+[B]$ ./client
diff --git a/demo/serverp.go b/demo/serverp.go
index 5f13c51..58781f0 100644
--- a/demo/serverp.go
+++ b/demo/serverp.go
@@ -39,7 +39,7 @@ func main() {
 			go func(ch chan []byte, eCh chan error) {
 				for {
 					// try to read the data
-					data := make([]byte, 64)
+					data := make([]byte, 512)
 					chN, err = c.Read(data)
 					if err != nil {
 						// send an error if it's encountered