Title:
USE OF AN ENCRYPTION SERVER FOR ENCRYPTING MESSAGES
Document Type and Number:
WIPO Patent Application WO1997041661
Kind Code:
A3
Abstract:
An encryption server receives a first encrypted message (105) and decrypts (403) the encrypted message using a first key, yielding a decrypted message comprising a second encrypted message (105A), an identification of a sender of the first encrypted message, and an identification of a first recipient. The second encrypted message, the identification of the sender, and the identification of the first recipient are determined (405) from the decrypted message. The second encrypted message and the identification of the sender are encrypted (409) with a second key, yielding a third encrypted message (109). The third encrypted message (109) is transmitted to the first recipient.
Inventors:
DORENBOS DAVID
Application Number:
PCT/US1997/006161
Publication Date:
December 11, 1997
Filing Date:
April 16, 1997
Export Citation:
Assignee:
MOTOROLA INC (US)
International Classes:
H04L9/00; G09C1/00; H04L9/14; H04L9/30; H04L9/36; H04L29/06; (IPC1-7): H04L/
Foreign References:
| US5479514A | 1995-12-26 | |||
| US5574785A | 1996-11-12 | |||
| US5455865A | 1995-10-03 |
Other References:
See also references of EP 0882340A4
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