Patent · US Active

Key transport in authentication or cryptography

US8356177B2 · kind B2 · utility

41Cited by

0References

30Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

David McGrew · Poolesville, US
Brian Weis · San Jose, US
Fabio R. Maino · Palo Alto, US

Key dates

Filing date	Oct 22, 2009
Grant date	Jan 15, 2013
Priority date	—
Expiry date	Sep 29, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/3242
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A computer system for authenticating, encrypting, and transmitting a secret communication, where the encryption key is transmitted along with the encrypted message, is disclosed. In an embodiment, a first transmitting processor encrypts a plaintext message to a ciphertext message using a data key, encrypts the data key using a key encrypting key, and sends a communication comprising the encrypted data key and the ciphertext message. A second receiving processor receives the communication and then decrypts the encrypted data key using the key encrypting key and decrypts the ciphertext message using the data key to recover the plaintext message.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.