Communication network intended for secure transmission of speech and data
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 19, 1992
Grant Date -
N/A
app pub date -
Oct 31, 1990
filing date -
Nov 13, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention relates to a communication network intended for secure transmission of speech and data, including different types of subscriber terminals (10-15) and switching modules (4-6), and where the network further comprise crypto devices to undertake encryption/decryption of information transmitted through the network. At least one of the crypto devices is constituted by a crypto-pool device (7,8,9) having a number of crypto modules (CM) physically separated from the switching modules (4,5,6). Each crypto-pool (7,8,9; 20) is provided with a managing device (MA, 26) for communicating with a ciphering key distribution authority through standardized communication protocols and distribute keys to the relevant CM through a control path (25) of the crypto-pool. Each crypto-pool has access to an authentication server (AS, 16; 41,43) providing a directory of security certificates necessary in the authentication process when initiating a network connection.
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