Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2004-07-09
2009-11-24
Vu, Kimyen (Department: 2435)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S150000, C713S168000, C380S044000, C380S277000, C380S278000, C380S284000, C726S002000, C726S012000
Reexamination Certificate
active
07624269
ABSTRACT:
Secure messages may be sent between senders and recipients using symmetric message keys. The symmetric message keys may be derived from a master key using a key generator at an organization. A gateway may encrypt outgoing message using the derived keys. Senders in the organization can send messages to recipients who are customers of the organization. The recipients can authenticate to a decryption server in the organization using preestablished credentials. The recipients can be provided with copies of the derived keys for decrypting the encrypted messages. A hierarchical architecture may be used in which a super master key generator at the organization derives master keys for delegated key generators in different units of the organization. An organization may have a policy server that generates non-customer symmetric message keys. The non-customer symmetric message keys may be used to encrypt messages sent by a non-customer sender to a recipient at the organization.
REFERENCES:
patent: 6584564 (2003-06-01), Olkin et al.
patent: 7093121 (2006-08-01), Barton et al.
patent: 2003/0026433 (2003-02-01), Matt
patent: 2003/0208677 (2003-11-01), Ayyagari et al.
Appenzeller Guido
Boyen Xavier
Spies Terence
Kellogg David C.
To Baotran N
Treyz G. Victor
Treyz Law Group
Voltage Security, Inc.
LandOfFree
Secure messaging system with derived keys does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Secure messaging system with derived keys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secure messaging system with derived keys will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4068801