Imports v2ray.com/core/transport v2ray.com/core/common/alloc v2ray.com/core/common/protocol v2ray.com/core/common/crypto v2ray.com/core/common/log v2ray.com/core/common/net v2ray.com/core/common/uuid v2ray.com/core/common/serial v2ray.com/core/proxy/vmess Standard library imports crypto/rand errors io hash/fnv crypto/md5