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/*
* Copyright (c) 2014, Yawning Angel <yawning at torproject dot org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package obfs4
import (
"bytes"
"testing"
"github.com/yawning/obfs4/ntor"
)
func TestHandshakeNtor(t *testing.T) {
// Generate the server node id and id keypair.
nodeID, _ := ntor.NewNodeID([]byte("\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13"))
idKeypair, _ := ntor.NewKeypair(false)
// Intialize the client and server handshake states
clientHs, err := newClientHandshake(nodeID, idKeypair.Public())
if err != nil {
t.Fatal("newClientHandshake failed:", err)
}
serverHs := newServerHandshake(nodeID, idKeypair)
// Generate what the client will send to the server.
cToS, err := clientHs.generateHandshake()
if err != nil {
t.Fatal("clientHandshake.generateHandshake() failed", err)
}
// Parse the client handshake message.
serverSeed, err := serverHs.parseClientHandshake(cToS)
if err != nil {
t.Fatal("serverHandshake.parseClientHandshake() failed", err)
}
// Genrate what the server will send to the client.
sToC, err := serverHs.generateHandshake()
if err != nil {
t.Fatal("serverHandshake.generateHandshake() failed", err)
}
// Parse the server handshake message.
n, clientSeed, err := clientHs.parseServerHandshake(sToC)
if err != nil {
t.Fatal("clientHandshake.parseServerHandshake() failed", err)
}
if n != len(sToC) {
t.Fatalf("clientHandshake.parseServerHandshake() has bytes remaining: %d", n)
}
// Ensure the derived shared secret is the same.
if 0 != bytes.Compare(clientSeed, serverSeed) {
t.Fatalf("client/server seed mismatch")
}
}
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