发明公开
EP0942398A2 Encryption key control system for mail processing system having data center verification
失效
Verschlüsselungsschlüssel-Kontrollsystemfürein Postverarbeitungssystem mitEchtheitsprüfungdes Datenzentrums
- 专利标题： Encryption key control system for mail processing system having data center verification
- 专利标题（中）： Verschlüsselungsschlüssel-Kontrollsystemfürein Postverarbeitungssystem mitEchtheitsprüfungdes Datenzentrums
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申请号： EP99107495.6申请日： 1994-10-07
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公开(公告)号： EP0942398A2公开(公告)日： 1999-09-15
- 发明人: Kim, Hyung-Kun Paul , Cordery, Robert A. , Pintsov, Leon A.
- 申请人： PITNEY BOWES INC.
- 申请人地址： World Headquarters One Elmcroft Stamford Connecticut 06926-0700 US
- 专利权人： PITNEY BOWES INC.
- 当前专利权人： PITNEY BOWES INC.
- 当前专利权人地址： World Headquarters One Elmcroft Stamford Connecticut 06926-0700 US
- 代理机构： HOFFMANN - EITLE
- 优先权： US133416 19931008
- 主分类号： G07B17/04
- IPC分类号： G07B17/04
摘要：
A key control system comprises the generation of a first set of keys (44) which are then used for a plurality of respective postage meters (12). The keys are then related to a respective meter in accordance with a map or algorithm. The keys may be changed by entering the second key via an encryption (DES) using the first key.
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