摘要:
A random number generator (RNG) resistant to side channel attacks includes an activation pseudo random number generator (APRNG) having an activation output connected to an activation seed input to provide a next seed to the activation seed input. A second random number generator includes a second seed input, which receives the next seed and a random data output, which outputs random data in accordance with the next seed. An input seed memory is connected to the activation seed input and a feedback connection from the activation output so that the next seed is stored in the input seed memory to be used by the APRNG as the activation seed input at a next startup cycle.
摘要:
A method, article of manufacture and computer product is presented for a vehicle customization, restriction, and data logging capability. The invention leverages the increasing electronic content in vehicles by interconnecting these electronic devices with a controller. It further uses a storage device in the vehicle, to store vehicle customizations and/or restrictions, and to provide capability for defining and logging significant vehicle events. Combining the electronic vehicle components with a storage device (sometimes in the form of a smart card or floppy disk, etc.) and a controller in a vehicle network enables providing operator specific settings for each of a set of vehicle operators. These customizations add to operator and passenger comfort and safety. It also enables application of setting restrictions to and logging the vehicles use parameters. These add previously unavailable tools to entities as diverse as a parent monitoring a teen driver, a company or government agency regulating a truck driver, an operator training facility, a vessel captain or pilot, a rental car company setting terms for a car rental and handling returns off line, and a car owner relinquishing the vehicle to a parking lot attendant.
摘要:
An apparatus for permitting access to protected code, protected data or protected devices only when a computer system is in a trusted state, where said trusted state occurs only when said system is executing trusted code under a set of preselected conditions. This apparatus also has a device for exiting the trusted state and for preventing access to protected code, data and devices when the trusted state is exited. The computer system is also programmed to automatically generate a disabling signal upon the completion of execution of trusted code, and this disabling signal will result in the prevention of access to protected devices or code.
摘要:
Information including images of the parent and child are stored in an integrated circuit device in a child's watch or bracelet. The device contains write only once, non-volatile, storage and contacts for coupling the device to data entry and reader stations. At the time of entry into a protected facility, information identifying the child and guardian, along with digitized photos of the child and the guardian, are stored in the non-volatile storage at an entry station. Once the identification information is written into the device at the entry station, the child's watch or bracelet is attached with a tamper proof seal to the child in such a way that it cannot be easily removed by the child. If, while in the protected premises, the child is lost, found and taken to a security station, the watch is removed from the child and placed in the reader at that station and the information retrieved. This information is used to comfort the child by name, to contact the parents at their hotel and to verify the parents identities through their photographs when they come to pick up the child.
摘要:
A random number generator (RNG) resistant to side channel attacks includes an activation pseudo random number generator (APRNG) having an activation output connected to an activation seed input to provide a next seed to the activation seed input. A second random number generator includes a second seed input, which receives the next seed and a random data output, which outputs random data in accordance with the next seed. An input seed memory is connected to the activation seed input and a feedback connection from the activation output so that the next seed is stored in the input seed memory to be used by the APRNG as the activation seed input at a next startup cycle.
摘要:
A random number generator (RNG) resistant to side channel attacks includes an activation pseudo random number generator (APRNG) having an activation output connected to an activation seed input to provide a next seed to the activation seed input. A second random number generator includes a second seed input, which receives the next seed and a random data output, which outputs random data in accordance with the next seed. An input seed memory is connected to the activation seed input and a feedback connection from the activation output so that the next seed is stored in the input seed memory to be used by the APRNG as the activation seed input at a next startup cycle.
摘要:
A trusted co-server, and a method of using a trusted co-server, for a service provider. The co-server executes a program such that: for multiple parties P0–Pn (where Po is said co-server), each party Pi may (optionally) provide input Ii, and then said co-server carries out N functions: Fi (io . . . In) describes what the co-server returns to party Pi. The preferred embodiment of the invention raises the trust level of the computation and data storage at the server. For instance, this invention may be witness to authenticity of certain data coming back to the client. This data can include assertions from the trusted co-server about the server content and configuration. The invention, also, can provide privacy of data going back to the server, by keeping it encrypted between the client and the co-server, and then re-encrypting it before inserting it into the server. With this invention, the user can trust the integrity of the computation occurring at the co-server—even if the server operator might be motivated to subvert it. The co-server also provides a trusted haven for computation relevant to third parties who may also have an interest in the client-server interaction.
摘要:
An online coupon issuing and redemption system and method receives requests for coupons from consumers, presents advertisements and issues coupons to consumers electronically. The system presents advertisements before issuing the coupons, such that an issuer may be assured its targeted consumer are receiving its advertisements. The coupons are issued on a smart card, thereby eliminating a need for paper coupons. The coupons are digitally signed in order to prevent fraud. In order to prevent further fraudulent tampering of coupons, the redemption station includes a tamper-protected coprocessor for performing operations on the coupons. The system further includes capability for the redemption station to link to an issuing station for electronic reimbursements.