Xray-core/common/crypto/auth_test.go

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2020-11-25 11:01:53 +00:00
package crypto_test
import (
"bytes"
"crypto/aes"
"crypto/cipher"
"crypto/rand"
"io"
"testing"
"github.com/google/go-cmp/cmp"
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"github.com/xtls/xray-core/common"
"github.com/xtls/xray-core/common/buf"
. "github.com/xtls/xray-core/common/crypto"
"github.com/xtls/xray-core/common/protocol"
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)
func TestAuthenticationReaderWriter(t *testing.T) {
key := make([]byte, 16)
rand.Read(key)
block, err := aes.NewCipher(key)
common.Must(err)
aead, err := cipher.NewGCM(block)
common.Must(err)
const payloadSize = 1024 * 80
rawPayload := make([]byte, payloadSize)
rand.Read(rawPayload)
payload := buf.MergeBytes(nil, rawPayload)
cache := bytes.NewBuffer(nil)
iv := make([]byte, 12)
rand.Read(iv)
writer := NewAuthenticationWriter(&AEADAuthenticator{
AEAD: aead,
NonceGenerator: GenerateStaticBytes(iv),
AdditionalDataGenerator: GenerateEmptyBytes(),
}, PlainChunkSizeParser{}, cache, protocol.TransferTypeStream, nil)
common.Must(writer.WriteMultiBuffer(payload))
if cache.Len() <= 1024*80 {
t.Error("cache len: ", cache.Len())
}
common.Must(writer.WriteMultiBuffer(buf.MultiBuffer{}))
reader := NewAuthenticationReader(&AEADAuthenticator{
AEAD: aead,
NonceGenerator: GenerateStaticBytes(iv),
AdditionalDataGenerator: GenerateEmptyBytes(),
}, PlainChunkSizeParser{}, cache, protocol.TransferTypeStream, nil)
var mb buf.MultiBuffer
for mb.Len() < payloadSize {
mb2, err := reader.ReadMultiBuffer()
common.Must(err)
mb, _ = buf.MergeMulti(mb, mb2)
}
if mb.Len() != payloadSize {
t.Error("mb len: ", mb.Len())
}
mbContent := make([]byte, payloadSize)
buf.SplitBytes(mb, mbContent)
if r := cmp.Diff(mbContent, rawPayload); r != "" {
t.Error(r)
}
_, err = reader.ReadMultiBuffer()
if err != io.EOF {
t.Error("error: ", err)
}
}
func TestAuthenticationReaderWriterPacket(t *testing.T) {
key := make([]byte, 16)
common.Must2(rand.Read(key))
block, err := aes.NewCipher(key)
common.Must(err)
aead, err := cipher.NewGCM(block)
common.Must(err)
cache := buf.New()
iv := make([]byte, 12)
rand.Read(iv)
writer := NewAuthenticationWriter(&AEADAuthenticator{
AEAD: aead,
NonceGenerator: GenerateStaticBytes(iv),
AdditionalDataGenerator: GenerateEmptyBytes(),
}, PlainChunkSizeParser{}, cache, protocol.TransferTypePacket, nil)
var payload buf.MultiBuffer
pb1 := buf.New()
pb1.Write([]byte("abcd"))
payload = append(payload, pb1)
pb2 := buf.New()
pb2.Write([]byte("efgh"))
payload = append(payload, pb2)
common.Must(writer.WriteMultiBuffer(payload))
if cache.Len() == 0 {
t.Error("cache len: ", cache.Len())
}
common.Must(writer.WriteMultiBuffer(buf.MultiBuffer{}))
reader := NewAuthenticationReader(&AEADAuthenticator{
AEAD: aead,
NonceGenerator: GenerateStaticBytes(iv),
AdditionalDataGenerator: GenerateEmptyBytes(),
}, PlainChunkSizeParser{}, cache, protocol.TransferTypePacket, nil)
mb, err := reader.ReadMultiBuffer()
common.Must(err)
mb, b1 := buf.SplitFirst(mb)
if b1.String() != "abcd" {
t.Error("b1: ", b1.String())
}
mb, b2 := buf.SplitFirst(mb)
if b2.String() != "efgh" {
t.Error("b2: ", b2.String())
}
if !mb.IsEmpty() {
t.Error("not empty")
}
_, err = reader.ReadMultiBuffer()
if err != io.EOF {
t.Error("error: ", err)
}
}