Jeffrey B. Canter - West Orange NJ, US Michael K. Weller - Stroudsburg PA, US Michael T. Zimmer - Lake Hopatcong NJ, US
Assignee:
BAE Systems Information and Electronic Systems Integration Inc. - Nashua NH
International Classification:
H04K 1/00
US Classification:
380257, 713166, 713153
Abstract:
Systems including both distributed and centralized architectures for providing multiple levels of security using “virtual” switches. Ports and channels are assigned the same time slots on a TDMA bus only when they have matching security levels.
Secure Communications System With Assured Synchronization For Data Exchanged Among System Ports
BAE Systems Information and Electronic Systems Integration Inc. - Nashua NH
International Classification:
H04K 1/00
US Classification:
380257, 713166, 713153
Abstract:
A secure communications system has at least one processor and a control bus. A number of ports, each having a different fixed address, are coupled to the control bus. The processor assigns each port the address of another port whose data the port is permitted to receive when placed on a system data bus by the other port. A time slot generator outputs each fixed port address sequentially during corresponding time slots in a recurring manner, and a time slot bus is coupled to the time slot generator and to each of the ports. The ports are configured so that (a) when a given port detects its fixed address on the time slot bus, it writes desired outbound data on the data bus, and (b) when the given port detects its assigned port address on the time slot bus, the given port reads data off the data bus.
Jeffrey B. Canter - West Orange NJ, US Boris Radovcic - Rockaway NJ, US Michael T. Christoff - North Whippany NJ, US
Assignee:
BAE SYSTEMS Information & Electronic Systems Integration Inc. - Nashua NH
International Classification:
G06F 13/00
US Classification:
710301
Abstract:
An expansion card and method for controlling a radio system integrates PCDD operations into a PCMCIA or ExpressCard which can be inserted into an external display, smart screen PCMCIA slot, or laptop ExpressCard or PCMCIA slot to allow an operator to control the radio system with a computer without any modification of the computer.
In a system that has a redundant pair of modules where one module is the active module and the other module is the standby module, each of the two modules includes equipment such as an inexpensive programmable logic device to provide a protection switching algorithm for determining, at the individual module level, whether a module is in the active or standby state and switching a module from a standby state to its active state when the module in the active state becomes defective. The number of wires that are required as module to module indicators is reduced to two. The processor can make the active, standby determination when the two modules are powered up simultaneously, when one module is inserted subsequent to the other, or where a module has been active and then fails or is unexpectedly removed.
Flash Memory Device For Storing Sensitive Information And Other Data
A flash memory system for encrypting and storing data in a non-volatile flash memory associated with a host system. The device includes flash memory, encryption engine, random number generator, cryptographic hash engine, key store, static random-access memory to interface with the host system, and associated control circuitry. When powered on, the device determines if a valid encryption key is held in the key store. If a valid key is held, a program flag is set when encrypted data in the flash memory is ready to be decrypted and stored in the static random access memory for use by the host system, or when data originating from the host system and stored in the static random access memory is ready to be encrypted by the engine and programmed into the flash memory. The device can be embedded in any host system wherein data is encrypted while at rest in memory.
Flash Memory Device For Storing Sensitive Information And Other Data
- Nashua NH, US Jeffrey B. CANTER - West Orange NJ, US
Assignee:
BAE Systems Information and Electric Systems Integration Inc. - Nashua NH
International Classification:
G06F 12/14 G06F 3/06
Abstract:
A flash memory process and device for encrypting and storing data in a non-volatile flash memory associated with a host system. The device includes a flash memory, an encryption engine, a key store, a SRAM to interface with the host system, and associated control circuitry. When powered on, the device first determines if a valid encryption key is held in the key store. If a valid key is held in the store, a program flag is set when encrypted data in the flash memory is ready to be decrypted by the engine and Random stored in the SRAM for use by the host system, or when data originating from the host system and stored in the SRAM is ready to be encrypted by the engine and programmed into the flash memory. The device can be embedded in any host system wherein data must be encrypted while at rest in a memory.