Secure telecommunications data transmission

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

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380 9, 380 18, 380 23, 380 25, 380 30, 380 49, H04L 908, H04L 900, H04L 930, H04L 932

Patent

active

060581875

ABSTRACT:
Secure data transmission apparatus comprises a data translator for translating an input string of signals, each signal having incomplete information for identifying an alphanumeric character, into a first encryption key. A data encrypter receives a first encryption key, a choice of encryption algorithm and a message and outputs an encrypted message according to the selected algorithm. The apparatus may be applied whenever the user is confronted with telecommunications apparatus that provides a limited input capability and no means for encrypting a message for transmission to an end user. In this manner, for example, a user may authenticate their name for display on caller identification plus name apparatus and the called party can be assured, before answering their line, that the call is from the party having the displayed name.

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Notification of Transmittal of The International Search Report or the Declaration--International Application No.: PCT/US98/03582--Filing date Feb. 24, 1998.

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