发明名称 METHOD AND SYSTEM OF CONDITIONAL ACCESS TO IP SERVICES
摘要 1. Method for transmitting information (20) with access control via a network (3) utilizing an IP type protocol. According to the invention, at transmission: scrambling a first datagram (23); defining a header (24) comprising at least one datum identifying the access control means; concatenating this header (24) with the first scrambled datagram (23) in order to create a data block (26); encapsulating the data block (26) in a second IP datagram (30); transmitting this second IP datagram (30) over the network; at reception: extracting the data block (26) from the datagram received; extracting the header (24); descrambling the first datagram (23) if access to this data is authorized; delivering the descrambled data.
申请公布号 KR20030092083(A) 申请公布日期 2003.12.03
申请号 KR20037013599 申请日期 2003.10.17
申请人 发明人
分类号 H04L12/56;H04L29/06 主分类号 H04L12/56
代理机构 代理人
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