Cryptography – Key management
Reexamination Certificate
2006-01-10
2006-01-10
Barrón, Gilberto (Department: 2134)
Cryptography
Key management
C713S156000
Reexamination Certificate
active
06985591
ABSTRACT:
The present invention provides secure communication from one encryption domain to another using a trusted module. In one embodiment, the invention includes receiving a first key for decryption of encrypted content over a secure authenticated channel, receiving a second key for re-encrypting the encrypted content over a secure authenticated channel. The invention further includes receiving the encrypted content, decrypting and re-encrypting the encrypted content using the first key and the second key, and conveying the re-encrypted content to a sink.
REFERENCES:
patent: 6064739 (2000-05-01), Davis
patent: 6400996 (2002-06-01), Hoffberg et al.
patent: 6904522 (2005-06-01), Benardeau et al.
patent: 2003/0108206 (2003-06-01), Diehl et al.
Barrón Gilberto
Blakely , Sokoloff, Taylor & Zafman LLP
Tran Ellen C
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