Oracle International Corporation

Novell, Inc.

Preetam Ramakrishna

Rahil Mir

Techniques for key distribution used with encrypted communications are provided. A shared secret associated with a principal is maintained securely and separately from the principal. If a principal is authenticated, then the shared secret is acquired from secure data store and used to encrypt a session key. An encrypted authentication token is also generated. The session key is used by the principal to encrypt communications with services and the authentication token vouches for an identity of the principal.

Techniques for key distribution for use in encrypted communications

A system for stopping an ongoing threat to a database is described. During operation, if an ongoing threat to the database is detected, the system modifies a threat-assessment condition. Then, the system selectively restricts access to one or more cryptographic keys for the database based on the threat-assessment condition. Next, the system selectively activates decryption of requested encrypted information based on the threat-assessment condition. Note that both the selective restriction of access to the one or more cryptographic keys and the selective activation of decryption can be used to stop the ongoing threat from accessing the encrypted information in the database.

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Bengaluru, India

Preetam Ramakrishna