Universal authentication device for use over telephone lines

Details Universal authentication device for use over telephone lines Universal authentication device for use over telephone lines

1996-07-12

1998-07-28

Woo, Stella

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379 9101, 379447, 379144, 380 23, 235382, 34082534, H04M 1100

Patent

active

057871540

ABSTRACT:
A method is provided for securely transmitting information from a telephone to a calling party over a telephone network. In accordance with the method, encrypted audio signals are received from the telephone over a communication path to an authentication mechanism that may be located in the telephone network. The communication path is then disabled by placing the telephone is a hold state. The encrypted audio signals are decrypted to yield decrypted audio signals. The decrypted audio signals are transmitted to the calling party while the communication path is disabled. Finally, a communication path is enabled from the telephone to the calling party subsequent to transmitting the decrypted audio signals. This method provides a high degree of security since the communication path between the user and the authentication mechanism is disabled when the decrypted message is transmitted to the called party. Accordingly, if a party were to intercept the communication path between the user and the authentication mechanism (such as a listener using a receiver to intercept a wireless telephone transmission), the party could not intercept the decrypted message.

REFERENCES:
patent: 5406619 (1995-04-01), Akhteruzzaman et al.
patent: 5455861 (1995-10-01), Faucher et al.

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