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62 lines
1.1 KiB
62 lines
1.1 KiB
package crypto
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import (
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"crypto/cipher"
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"io"
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"github.com/v2ray/v2ray-core/common"
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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 (this *CryptionReader) Read(data []byte) (int, error) {
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if this.reader == nil {
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return 0, common.ErrorAlreadyReleased
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}
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nBytes, err := this.reader.Read(data)
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if nBytes > 0 {
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this.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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func (this *CryptionReader) Release() {
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this.reader = nil
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this.stream = 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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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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func (this *CryptionWriter) Write(data []byte) (int, error) {
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if this.writer == nil {
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return 0, common.ErrorAlreadyReleased
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}
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this.stream.XORKeyStream(data, data)
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return this.writer.Write(data)
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}
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func (this *CryptionWriter) Release() {
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this.writer = nil
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this.stream = nil
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}
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