Cryptography – Key management – Key escrow or recovery
Reexamination Certificate
2008-05-27
2008-05-27
Heneghan, Matthew (Department: 2139)
Cryptography
Key management
Key escrow or recovery
C707S793000, C713S171000
Reexamination Certificate
active
07379551
ABSTRACT:
Securely roaming private data from one client computer to another in a network. A home client application generates a first key in response to a password, and encrypts designated private data as a function of the first key. A server receives and stores the encrypted private data. A roaming client application generates the first key in response to the password, and decrypts encrypted private data transferred from the server to obtain the private data. The invention further provides users the ability to retrieve encrypted private from the server even when the user cannot remember the password associated with the first key. Also, the server has no knowledge of the private data or the keys.
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Back Adam
Chan Kok Wai
Dharmarajan Baskaran
Newaskar Rahul Shrikant
Toncheva Dafina Ivanova
Heneghan Matthew
Microsoft Corporation
Senniger Powers LLP
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