AESGCM creates a new Cipher with a pre-shared key.

Chacha20Poly1305 creates a new Cipher with a pre-shared key.

NewConn wraps a stream-oriented net.Conn with cipher.

NewPacketConn wraps a net.PacketConn with cipher.

NewReader wraps an io.Reader with authenticated decryption.

NewWriter wraps an io.Writer with authenticated encryption.

Pack encrypts plaintext using Cipher with a randomly generated salt and returns a slice of dst containing the encrypted packet and any error occurred.

Unpack decrypts pkt using Cipher and returns a slice of dst containing the decrypted payload and any error occurred.

XChacha20Poly1305 creates a new Cipher with a pre-shared key.

ErrShortPacket means that the packet is too short for a valid encrypted packet.