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Cachin
Christian Cachin, Thalwil CH
| Patent application number | Description | Published |
|---|---|---|
| 20090316907 | SYSTEM AND METHOD FOR AUTOMATED VALIDATION AND EXECUTION OF CRYPTOGRAPHIC KEY AND CERTIFICATE DEPLOYMENT AND DISTRIBUTION - A method for automated validation and execution of cryptographic key and certificate deployment and distribution includes providing one or more keys; providing one or more key deployment points; and distributing the one or more keys to the one or more key deployment points in an automated manner based on a matrix or pattern mapping of each of the one or more keys to be distributed to each of the one or more key deployment points. | 12-24-2009 |
Christian Cachin, Thalwid CH
| Patent application number | Description | Published |
|---|---|---|
| 20090245519 | RENEWAL MANAGEMENT FOR DATA ITEMS - A system, method apparatus, and computer readable medium for managing renewal of a dynamic set of data items. Each data item has an associated renewal deadline, in a data item management system. A renewal schedule allocates to each data item a renewal interval for renewal of the data item. On addition of a new data item, if a potential renewal interval having a duration required for renewal of the data item, and having an ending at the renewal deadline for that item does not overlap a time period in the schedule during which the system is busy, the renewal schedule is automatically updated by allocating the potential renewal interval to the new data item. If the potential renewal interval does overlap a busy period, the renewal schedule is automatically updated by selecting an earlier renewal interval for at least one data item in the set. | 10-01-2009 |
Christian Cachin, Tahlwil CH
| Patent application number | Description | Published |
|---|---|---|
| 20090037491 | STORAGE SYSTEM AND METHOD FOR UPDATING A HASH TREE - A system and method is provided for updating a hash tree in a protected environment. An integrity protection controller is provided for observing one or more system parameters of a storage system and one or more hash tree parameters of the hash trees, and for updating a hash tree in dependence on the storage system parameter and the hash tree parameter. | 02-05-2009 |
Christian Cachin, Weesen CH
| Patent application number | Description | Published |
|---|---|---|
| 20080304662 | GROUP KEY EXCHANGES WITH FAILURES - A method for generating a session key on demand in a network among participating network devices, including choosing a private and public key according to a public key encryption scheme, and broadcasting the public key to each other participating network device; choosing a local contribution value from a multiplicative group of size q; encrypting the local contribution value under the received public key to an encrypted contribution value and sending the encrypted contribution value; receiving encrypted contribution values and deriving decrypted contribution values by applying the private key; deriving a blinded session key from the decrypted contribution values and the local contribution value; agreeing on one of the blinded session keys by using an agreement protocol; and deriving the session key from the agreed-on blinded session key by applying one of the decrypted contribution values and the contribution value A corresponding computer program element, computer program product, and computer device. | 12-11-2008 |