发明名称 Verfahren zur Datensicherung in einem Telekommunikationssystem
摘要 In a bidirectionally operable subscriber system with one or more coaxial line tree-like system(s) shared by a plurality of subscriber system connection units, extending between such subscriber system connection units and a superior connecting device, in which said coaxial line tree-like system(s) may be connected via a converter device to a light guide, preferably to a light-guide tree-like system, containing optical dividers and to the appropriate connecting device via said light-guide(s), for the sake of data security the public key is found from a secret key predetermined in the subscriber system connection unit which is transferred upwardly to the connecting device where it is used to encrypt (secondary key) data to match the subscriber system connecting device to repeatedly changed transmission modalities provided individually in the system connecting device for said subscriber system connecting unit.
申请公布号 DE4435901(A1) 申请公布日期 1996.04.11
申请号 DE19944435901 申请日期 1994.10.07
申请人 SIEMENS AG, 80333 MUENCHEN, DE 发明人 MOEHRMANN, KARL-HEINZ, DIPL.-ING., 81369 MUENCHEN, DE;STEIN, KARL-ULRICH, DR.-ING., 82008 UNTERHACHING, DE
分类号 H04L9/08;H04L9/30;(IPC1-7):H04L9/00;H04L12/22;H04L12/28;H04L12/56;H04L5/22 主分类号 H04L9/08
代理机构 代理人
主权项
地址