发明授权
- 专利标题： Non-interfering in-band protocol-independent diagnostic scanning in a digital multipoint communication system
- 专利标题（中）： 数字多点通信系统中的非干扰带内协议无关诊断扫描
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申请号： US745849申请日： 1985-06-17
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公开(公告)号： US4645871A公开(公告)日： 1987-02-24
- 发明人: Gordon Bremer , Thomas Armstrong , Kurt Holmquist , Richard K. Smith
- 申请人： Gordon Bremer , Thomas Armstrong , Kurt Holmquist , Richard K. Smith
- 申请人地址： FL Largo
- 专利权人： Paradyne Corporation
- 当前专利权人： Paradyne Corporation
- 当前专利权人地址： FL Largo
- 主分类号： H04L9/06
- IPC分类号： H04L9/06 ; H04L9/00 ; G07D7/00 ; G08B5/22
摘要：
In a system in which data between a master and remote location is encrypted by using the DES algorithm, the status of security devices at the remote location is monitored from a centralized security station. A message indicative of the status of the security devices is used to generate an initializing vector (IV). This IV is then used to encrypt the data from the remote to the master.
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