NewConn wraps a stream-oriented net.Conn with stream cipher encryption/decryption.

NewPacketConn wraps a net.PacketConn with stream cipher encryption/decryption.

NewReader wraps an io.Reader with stream cipher decryption.

NewWriter wraps an io.Writer with stream cipher encryption.

Pack encrypts plaintext using stream cipher s and a random IV.

Unpack decrypts pkt using stream cipher s.

ErrShortPacket means the packet is too short to be a valid encrypted packet.

Cipher generates a pair of stream ciphers for encryption and decryption.