Patent application number | Description | Published |
20120066770 | INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING PROGRAM - According to one embodiment, there is provided a an information processing apparatus, including: a program acceptance portion; a program storage portion; a first function type storage portion; a function type extraction portion; a second function type storage portion; a first alternate function type storage portion; an alternate function type extraction portion; a second alternate function type storage portion; a selection portion; a judging portion; an updating portion; and a protection attribute determination portion. | 03-15-2012 |
20120079283 | MEMORY MANAGEMENT DEVICE AND MEMORY MANAGEMENT METHOD - According to an embodiment, a memory management device increments a lower value of a first counter, updates the counter by incrementing an upper value and resetting the lower value when the lower value overflows, increments to update the lower counter value when the upper value is incremented as a result of writing a second data piece having the upper value in common to a memory, recalculates a first secret value calculated using the first counter values and a root secret value in response to the first counter update, writes a first data piece and the first secret value to the memory, and at reading of the first data piece and the first secret value, calculates a second secret value using the updated first counter values and the root secret value, and compares the first secret value with the second secret value to verify the first data piece. | 03-29-2012 |
20120224695 | COMMUNICATING DEVICE AND COMMUNICATING METHOD - The debugging unit writes a public key of the key issuing server and an initializing program given from outside, to the storage unit. The instruction executing unit reads and executes the initializing program stored in the storage unit. The debug disabling unit disables the debugging unit. The public-key encrypting unit encrypts the random number by the public key in the storage unit, the random number generated by the random number generating unit after the debugging unit is disabled. The transmitting unit transmits the encrypted random number to the key issuing server. The receiving unit receives an individual key encrypted by the random number from the key issuing server. The individual-key writing unit decrypts the encrypted individual key by the random number to obtain the individual key and write the individual key to the storage unit. | 09-06-2012 |
20130073851 | CONTROL DEVICE AND COMPUTER READABLE MEDIUM - A control device includes: a random number generating unit that generates a random number; a first setting unit that sets the random number in a first storage; a message creating unit that encrypts the random number using a public key of the administrative server and to create a request message to be transmitted to the administrative server; a timer starting unit that starts a timer; an activation unit that activates the system software; a timer canceling unit that accepts an interruption from the system software and cancels the timer; a message verifying unit that verifies the notification message from the administrative server using the public key and the random number; and a restart unit that restarts the system software while limiting the functions, in the case where the timer expires time or the verification fails. | 03-21-2013 |
20150143132 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM PRODUCT - According to an embodiment, an information processing device includes a first manager, a second manager, and a generator. The first manager loads a first class of a first object that requests execution of methods contained in a second object and a third class of a limiter configured to limit access from the first object to the methods. The second manager loads a second class of the second object. The generator generates the second object from the second class upon receiving a generation request for generating the second object from the first object, generates the limiter from the second object and the third class, and transmits the limiter to the first object. | 05-21-2015 |
20150370726 | MEMORY MANAGEMENT DEVICE AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM - In one embodiment, a storage unit stores a table tree and verifier tree. The table tree includes parent and child tables. The verifier tree includes parent and child verifiers associated with the parent and child tables, respectively. The parent verifier is used for verifying the child table and child verifier. A device stores a secure table tree corresponded to the table tree and used for address translation and a secure verifier tree corresponded to the verifier tree, to a secure storage unit. The device executes verification, based on verification information calculated based on a first child table and first child verifier in the storage unit and a first parent verifier in the secure verifier tree. The device sets the second address of the secure table tree such that the second address designates data in the first storage unit. | 12-24-2015 |
20150370727 | MEMORY MANAGEMENT DEVICE AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM - In one embodiment, a device executes reading and writing for a storage unit storing a table tree and verifier tree. The table tree includes a parent table and child table. The verifier tree includes a parent verifier associated with the parent table, and a child verifier associated with the child table. The parent verifier is used for verifying the child table and child verifier. The device stores a secure table tree being a part of the table tree and used for address translation, and a secure verifier tree being a part of the verifier tree, to a secure storage unit. The device executes verification, based on verification information calculated based on a first child table and first child verifier in the storage unit and a first parent verifier in the secure verifier tree. | 12-24-2015 |
20150370728 | MEMORY MANAGEMENT DEVICE AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM - In one embodiment, a device executes reading and writing for a storage unit storing a table tree and verifier tree. The table tree includes a parent table and child table. The verifier tree includes a parent verifier associated with the parent table, and a child verifier associated with the child table. The parent verifier is used for verifying the child table and the child verifier. The device stores a secure table tree being a part of the table tree and used for address translation, and a secure verifier tree being a part of the verifier tree, to a secure storage unit. The device, when data has a read-only attribute, calculates verification information based on the data and a secure value varying according as the data is updated, and executes verification based on a verifier corresponded to the data and the verification information. | 12-24-2015 |