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142 lines
3.5 KiB
142 lines
3.5 KiB
package crypto_test
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import (
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"crypto/aes"
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"crypto/cipher"
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"crypto/rand"
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"io"
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"testing"
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"time"
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"v2ray.com/core/common/buf"
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. "v2ray.com/core/common/crypto"
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"v2ray.com/core/testing/assert"
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)
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func TestAuthenticationReaderWriter(t *testing.T) {
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assert := assert.On(t)
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key := make([]byte, 16)
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rand.Read(key)
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block, err := aes.NewCipher(key)
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assert.Error(err).IsNil()
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aead, err := cipher.NewGCM(block)
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assert.Error(err).IsNil()
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payload := make([]byte, 8*1024)
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rand.Read(payload)
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cache := buf.NewLocal(16 * 1024)
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iv := make([]byte, 12)
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rand.Read(iv)
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writer := NewAuthenticationWriter(&AEADAuthenticator{
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AEAD: aead,
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NonceGenerator: &StaticBytesGenerator{
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Content: iv,
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},
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AdditionalDataGenerator: &NoOpBytesGenerator{},
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}, cache, NewShakeUint16Generator([]byte{'a'}))
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nBytes, err := writer.Write(payload)
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assert.Error(err).IsNil()
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assert.Int(nBytes).Equals(len(payload))
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assert.Int(cache.Len()).GreaterThan(0)
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_, err = writer.Write([]byte{})
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assert.Error(err).IsNil()
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reader := NewAuthenticationReader(&AEADAuthenticator{
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AEAD: aead,
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NonceGenerator: &StaticBytesGenerator{
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Content: iv,
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},
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AdditionalDataGenerator: &NoOpBytesGenerator{},
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}, cache, NewShakeUint16Generator([]byte{'a'}))
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actualPayload := make([]byte, 16*1024)
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nBytes, err = reader.Read(actualPayload)
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assert.Error(err).IsNil()
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assert.Int(nBytes).Equals(len(payload))
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assert.Bytes(actualPayload[:nBytes]).Equals(payload)
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_, err = reader.Read(actualPayload)
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assert.Error(err).Equals(io.EOF)
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}
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func TestAuthenticationReaderWriterPartial(t *testing.T) {
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assert := assert.On(t)
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key := make([]byte, 16)
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rand.Read(key)
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block, err := aes.NewCipher(key)
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assert.Error(err).IsNil()
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aead, err := cipher.NewGCM(block)
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assert.Error(err).IsNil()
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payload := make([]byte, 8*1024)
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rand.Read(payload)
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iv := make([]byte, 12)
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rand.Read(iv)
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cache := buf.NewLocal(16 * 1024)
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writer := NewAuthenticationWriter(&AEADAuthenticator{
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AEAD: aead,
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NonceGenerator: &StaticBytesGenerator{
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Content: iv,
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},
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AdditionalDataGenerator: &NoOpBytesGenerator{},
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}, cache, NewShakeUint16Generator([]byte{'a', 'b'}))
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writer.Write([]byte{'a', 'b', 'c', 'd'})
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nBytes, err := writer.Write(payload)
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assert.Error(err).IsNil()
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assert.Int(nBytes).Equals(len(payload))
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assert.Int(cache.Len()).GreaterThan(0)
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_, err = writer.Write([]byte{})
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assert.Error(err).IsNil()
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pr, pw := io.Pipe()
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go func() {
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pw.Write(cache.BytesTo(1024))
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time.Sleep(time.Second * 2)
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pw.Write(cache.BytesRange(1024, 2048))
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time.Sleep(time.Second * 2)
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pw.Write(cache.BytesRange(2048, 3072))
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time.Sleep(time.Second * 2)
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pw.Write(cache.BytesFrom(3072))
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time.Sleep(time.Second * 2)
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pw.Close()
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}()
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reader := NewAuthenticationReader(&AEADAuthenticator{
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AEAD: aead,
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NonceGenerator: &StaticBytesGenerator{
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Content: iv,
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},
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AdditionalDataGenerator: &NoOpBytesGenerator{},
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}, pr, NewShakeUint16Generator([]byte{'a', 'b'}))
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actualPayload := make([]byte, 7*1024)
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nBytes, err = reader.Read(actualPayload)
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assert.Error(err).IsNil()
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assert.Int(nBytes).Equals(4)
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assert.Bytes(actualPayload[:nBytes]).Equals([]byte{'a', 'b', 'c', 'd'})
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nBytes, err = reader.Read(actualPayload)
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assert.Error(err).IsNil()
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assert.Int(nBytes).Equals(len(actualPayload))
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assert.Bytes(actualPayload[:nBytes]).Equals(payload[:nBytes])
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nBytes, err = reader.Read(actualPayload)
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assert.Error(err).IsNil()
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assert.Int(nBytes).Equals(len(payload) - len(actualPayload))
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assert.Bytes(actualPayload[:nBytes]).Equals(payload[7*1024:])
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_, err = reader.Read(actualPayload)
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assert.Error(err).Equals(io.EOF)
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}
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