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61 lines
1.2 KiB
61 lines
1.2 KiB
package crypto
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import (
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"crypto/cipher"
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"io"
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"v2ray.com/core/common/buf"
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)
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type CryptionReader struct {
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stream cipher.Stream
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reader io.Reader
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}
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func NewCryptionReader(stream cipher.Stream, reader io.Reader) *CryptionReader {
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return &CryptionReader{
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stream: stream,
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reader: reader,
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}
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}
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func (r *CryptionReader) Read(data []byte) (int, error) {
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nBytes, err := r.reader.Read(data)
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if nBytes > 0 {
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r.stream.XORKeyStream(data[:nBytes], data[:nBytes])
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}
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return nBytes, err
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}
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var (
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_ buf.MultiBufferWriter = (*CryptionWriter)(nil)
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)
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type CryptionWriter struct {
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stream cipher.Stream
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writer io.Writer
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}
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// NewCryptionWriter creates a new CryptionWriter.
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func NewCryptionWriter(stream cipher.Stream, writer io.Writer) *CryptionWriter {
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return &CryptionWriter{
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stream: stream,
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writer: writer,
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}
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}
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// Write implements io.Writer.Write().
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func (w *CryptionWriter) Write(data []byte) (int, error) {
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w.stream.XORKeyStream(data, data)
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return w.writer.Write(data)
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}
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func (w *CryptionWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
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bs := mb.ToNetBuffers()
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for _, b := range bs {
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w.stream.XORKeyStream(b, b)
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}
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_, err := bs.WriteTo(w.writer)
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return err
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}
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