An ExSRTP.Cipher implementation using AES-GCM (as per RFC 7714).
ExSRTP.Cipher
@type t() :: %ExSRTP.Cipher.AesGcm{ profile: :aes_gcm_128_16_auth, rtcp_key: binary(), rtcp_salt: binary(), rtp_key: binary(), rtp_salt: binary() }
@spec new(atom(), master_key :: binary(), master_salt :: binary()) :: t()