ceremonyclient/go-libp2p/p2p/security/noise/crypto_test.go

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2023-08-21 03:50:38 +00:00
package noise
import (
"bytes"
"context"
"net"
"testing"
"github.com/libp2p/go-libp2p/core/crypto"
)
func TestEncryptAndDecrypt_InitToResp(t *testing.T) {
initTransport := newTestTransport(t, crypto.Ed25519, 2048)
respTransport := newTestTransport(t, crypto.Ed25519, 2048)
initConn, respConn := connect(t, initTransport, respTransport)
defer initConn.Close()
defer respConn.Close()
plaintext := []byte("helloworld")
ciphertext, err := initConn.encrypt(nil, plaintext)
if err != nil {
t.Fatal(err)
}
result, err := respConn.decrypt(nil, ciphertext)
if !bytes.Equal(plaintext, result) {
t.Fatalf("got %x expected %x", result, plaintext)
} else if err != nil {
t.Fatal(err)
}
plaintext = []byte("goodbye")
ciphertext, err = initConn.encrypt(nil, plaintext)
if err != nil {
t.Fatal(err)
}
result, err = respConn.decrypt(nil, ciphertext)
if !bytes.Equal(plaintext, result) {
t.Fatalf("got %x expected %x", result, plaintext)
} else if err != nil {
t.Fatal(err)
}
}
func TestEncryptAndDecrypt_RespToInit(t *testing.T) {
initTransport := newTestTransport(t, crypto.Ed25519, 2048)
respTransport := newTestTransport(t, crypto.Ed25519, 2048)
initConn, respConn := connect(t, initTransport, respTransport)
defer initConn.Close()
defer respConn.Close()
plaintext := []byte("helloworld")
ciphertext, err := respConn.encrypt(nil, plaintext)
if err != nil {
t.Fatal(err)
}
result, err := initConn.decrypt(nil, ciphertext)
if !bytes.Equal(plaintext, result) {
t.Fatalf("got %x expected %x", result, plaintext)
} else if err != nil {
t.Fatal(err)
}
}
func TestCryptoFailsIfCiphertextIsAltered(t *testing.T) {
initTransport := newTestTransport(t, crypto.Ed25519, 2048)
respTransport := newTestTransport(t, crypto.Ed25519, 2048)
initConn, respConn := connect(t, initTransport, respTransport)
defer initConn.Close()
defer respConn.Close()
plaintext := []byte("helloworld")
ciphertext, err := respConn.encrypt(nil, plaintext)
if err != nil {
t.Fatal(err)
}
ciphertext[0] = ^ciphertext[0]
_, err = initConn.decrypt(nil, ciphertext)
if err == nil {
t.Fatal("expected decryption to fail when ciphertext altered")
}
}
func TestCryptoFailsIfHandshakeIncomplete(t *testing.T) {
initTransport := newTestTransport(t, crypto.Ed25519, 2048)
init, resp := net.Pipe()
_ = resp.Close()
session, _ := newSecureSession(initTransport, context.TODO(), init, "remote-peer", nil, nil, nil, true, true)
_, err := session.encrypt(nil, []byte("hi"))
if err == nil {
t.Error("expected encryption error when handshake incomplete")
}
_, err = session.decrypt(nil, []byte("it's a secret"))
if err == nil {
t.Error("expected decryption error when handshake incomplete")
}
}