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公开(公告)号：US5444782A
公开(公告)日：1995-08-22
申请号：US184631
申请日：1994-01-19
CPC分类号： H04L29/06 , H04L63/0428
摘要： A computer network encryption/decryption device includes at least one microprocessor, microprocessor support hardware, at least two network ports for connecting to upstream and downstream networks, memory hardware for storing program, configuration, and keylist data, and data encryption/decryption hardware. The device operates in one of two modes by selectively encrypting or decrypting packets or portions of packets based on information contained in a packer's header.
摘要翻译： 计算机网络加密/解密装置包括至少一个微处理器，微处理器支持硬件，用于连接到上游和下游网络的至少两个网络端口，用于存储程序，配置和键盘数据的存储器硬件以及数据加密/解密硬件。 该设备通过基于封装器头部中包含的信息选择性地加密或解密分组或部分分组来以两种模式之一进行操作。
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公开(公告)号：US5640456A
公开(公告)日：1997-06-17
申请号：US500071
申请日：1995-07-10
CPC分类号： H04L63/0428 , H04L29/06
摘要： A computer network encryption/decryption device includes at least one microprocessor, microprocessor support hardware, at least two network ports for connecting to upstream and downstream networks, memory hardware for storing program, configuration, and keylist data, and data encryption/decryption hardware. Both network ports have the same network address, making the device transparent to the local area network in which it is spliced. The device operates by selectively encrypting or decrypting only the data portion of a data packet, leaving the routing information contained in the header and trailer portions of the data packet unchanged.
摘要翻译： 计算机网络加密/解密装置包括至少一个微处理器，微处理器支持硬件，用于连接到上游和下游网络的至少两个网络端口，用于存储程序，配置和键盘数据的存储器硬件以及数据加密/解密硬件。 两个网络端口都具有相同的网络地址，使得设备对于拼接的局域网是透明的。 该设备通过仅选择性地加密或解密数据分组的数据部分来操作，使包含在数据分组的报头和报尾部分中的路由信息保持不变。
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公开(公告)号：US5442708A
公开(公告)日：1995-08-15
申请号：US305509
申请日：1994-09-13
CPC分类号： H04L63/0428 , H04L29/06
摘要： A computer network encryption/decryption device includes at least one microprocessor, microprocessor support hardware, at least two network ports for connecting to upstream and downstream networks, memory hardware for storing program, configuration, and keylist data, and data encryption/decryption hardware. Both network ports have the same network address, making the device transparent to the local area network in which it is spliced. The device operates by selectively encrypting or decrypting only the data portion of a data packet, leaving the routing information contained in the header and trailer portions of the data packet unchanged.
摘要翻译： 计算机网络加密/解密装置包括至少一个微处理器，微处理器支持硬件，用于连接到上游和下游网络的至少两个网络端口，用于存储程序，配置和键盘数据的存储器硬件以及数据加密/解密硬件。 两个网络端口都具有相同的网络地址，使得设备对于拼接的局域网是透明的。 该设备通过仅选择性地加密或解密数据分组的数据部分来操作，使包含在数据分组的报头和报尾部分中的路由信息保持不变。
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