const packetSizeMultiple … const maxPacket … type noneCipher … func (c noneCipher) XORKeyStream(dst, src []byte) { … } func newAESCTR(key, iv []byte) (cipher.Stream, error) { … } func newRC4(key, iv []byte) (cipher.Stream, error) { … } type cipherMode … func streamCipherMode(skip int, createFunc func(key, iv []byte) (cipher.Stream, error)) func(key, iv []byte, macKey []byte, algs directionAlgorithms) (packetCipher, error) { … } var cipherModes … const prefixLen … type streamPacketCipher … // readCipherPacket reads and decrypt a single packet from the reader argument. func (s *streamPacketCipher) readCipherPacket(seqNum uint32, r io.Reader) ([]byte, error) { … } // writeCipherPacket encrypts and sends a packet of data to the writer argument func (s *streamPacketCipher) writeCipherPacket(seqNum uint32, w io.Writer, rand io.Reader, packet []byte) error { … } type gcmCipher … func newGCMCipher(key, iv, unusedMacKey []byte, unusedAlgs directionAlgorithms) (packetCipher, error) { … } const gcmTagSize … func (c *gcmCipher) writeCipherPacket(seqNum uint32, w io.Writer, rand io.Reader, packet []byte) error { … } func (c *gcmCipher) incIV() { … } func (c *gcmCipher) readCipherPacket(seqNum uint32, r io.Reader) ([]byte, error) { … } type cbcCipher … func newCBCCipher(c cipher.Block, key, iv, macKey []byte, algs directionAlgorithms) (packetCipher, error) { … } func newAESCBCCipher(key, iv, macKey []byte, algs directionAlgorithms) (packetCipher, error) { … } func newTripleDESCBCCipher(key, iv, macKey []byte, algs directionAlgorithms) (packetCipher, error) { … } func maxUInt32(a, b int) uint32 { … } const cbcMinPacketSizeMultiple … const cbcMinPacketSize … const cbcMinPaddingSize … type cbcError … func (e cbcError) Error() string { … } func (c *cbcCipher) readCipherPacket(seqNum uint32, r io.Reader) ([]byte, error) { … } func (c *cbcCipher) readCipherPacketLeaky(seqNum uint32, r io.Reader) ([]byte, error) { … } func (c *cbcCipher) writeCipherPacket(seqNum uint32, w io.Writer, rand io.Reader, packet []byte) error { … } const chacha20Poly1305ID … type chacha20Poly1305Cipher … func newChaCha20Cipher(key, unusedIV, unusedMACKey []byte, unusedAlgs directionAlgorithms) (packetCipher, error) { … } func (c *chacha20Poly1305Cipher) readCipherPacket(seqNum uint32, r io.Reader) ([]byte, error) { … } func (c *chacha20Poly1305Cipher) writeCipherPacket(seqNum uint32, w io.Writer, rand io.Reader, payload []byte) error { … }
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