发明名称 |
SECURE TELECONFERENCING SYSTEM |
摘要 |
A secure audio teleconferencing system is disclosed. The secure teleconferencing system comprises a centralized facility or bridge to which a plurality of participants is connected. The role of the bridge is to receive encrypted message signals from the participants and to add the encrypted message signals, modulo some known number. The result is then transmitted to the participants. Each participant is able to decrypt the modular sum of encrypted message signals, to obtain the desired ordinary sum of clear text message signals. In accordance with the invention, the message signals remain encrypted throughout processing by the bridge. There are no non-encrypted message |
申请公布号 |
CA1306044(C) |
申请公布日期 |
1992.08.04 |
申请号 |
CA19880583395 |
申请日期 |
1988.11.17 |
申请人 |
BELL COMMUNICATIONS RESEARCH, INC. |
发明人 |
BRICKELL, ERNEST F.;LEE, PHIL J.;YACOBI, YACOV |
分类号 |
H04K1/00 |
主分类号 |
H04K1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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