| Max Planck Gesellschaft zur Foerderung der Wissenschaften Patent applications |
| Patent application number | Title | Published |
|---|
| 20120110338 | Protecting the Integrity and Privacy of Data with Storage Leases - Storage leases specify access restrictions and time periods, restricting access to their associated data during the storage lease time period. Storage leases may be assigned to individual data storage blocks or groups of data storage blocks in a data storage device. A data storage device may include any arbitrary number of different storage leases assigned to different portions of its data storage blocks. Storage lease-enabled devices may provide security certificates to verify that data access operations have been performed as requested and that their storage leases are being enforced. Storage lease-enabled devices compare storage lease information for data units with the current time using a clock isolated from access by storage clients or time certificates from one or more trusted time servers. Storage leases may be used in combination with backup applications, file systems, database systems, peer-to-peer data storage, and cloud storage systems. | 05-03-2012 |
| 20110252226 | PRESERVING USER PRIVACY IN RESPONSE TO USER INTERACTIONS - User privacy is preserved in response to user interactions with information items, such as advertisements, by controlling the behavior of a user's computer. Information items are associated with item response specifiers. Item response specifiers control the behaviors of the user's computer in response to user interactions with information items. Item response specifiers may be communicated to the user's computer with the associated information items or be retrieved separately by the user's computer from an information item broker or trusted third party. Item response specifiers may be cryptographically signed to ensure their integrity. Following a user interaction with an information item, the user's computer refers to the item response specifier to determine an appropriate privacy-preserving post-interaction behavior. Examples of privacy-preserving behavior include a silent privacy-preserving behavior, a proxied interaction privacy-preserving behavior, a partial proxied interaction privacy-preserving behavior, a delayed handoff privacy-preserving behavior, and a direct to provider privacy-preserving behavior. | 10-13-2011 |
| 20110055552 | PRIVATE, ACCOUNTABLE, AND PERSONALIZED INFORMATION DELIVERY IN A NETWORKED SYSTEM - A client receives a notification of a user interaction with an information item and creates a record describing this interaction. The client encrypts the record using an encryption key associated with a server. The encrypted record is then communicated to at least one proxy, which in turn forwards the encrypted record to a server. Upon receiving the encrypted record from the proxy, a server decrypts the record using a decryption key and analyzes the decrypted record to identify the information item and the type of user interaction. This information may be used individually or in aggregate for tracking user interests, billing advertisers or information item providers, and/or collecting anonymous information from users. | 03-03-2011 |
