METHOD AND SYSTEM FOR PROVIDING DATA SECURITY FOR A RELIABLE TRANSPORT PROTOCOL THAT SUPPORTS ORDERED DATA PROVIDING AS WELL AS UNORDED DATA PROVIDING, RECEIVER, TRANSMITTER, AND PROTOCOL ALLOCATOR

摘要

method and system for providing data security for a reliable transport protocol that supports orderly data provision as well as unordered data provision, receiver, transmitter, and security protocol allocator. A basic idea of the invention is to separate the ordered data supply and the unordered data supply into a security protocol performed on top of a reliable transport protocol, and to perform a first type of security processing for ordered data provision and a second different type of security processing for unordered provision of data in the security protocol. preferably data messages using unordered provisioning and data messages using unordered provisioning within a secure data stream are separated into two message sequence spaces at the security protocol layer, and data security processing is then performed. differently in these two spaces. The invention is particularly suited for a reliable transport protocol such as sctp (flow control transmission protocol). The security protocol running on top of the transport protocol is preferably based on the transport layer security (tls) protocol or a tls protocol with a security processing extension for unordered provisioning.