dma attack造句

• Preventing physical connections to such ports will prevent DMA attacks.
• Newer operating systems may take steps to prevent DMA attacks.
• Never allowing sensitive data to be stored in RAM unencrypted is another mitigation venue against DMA attacks.
• Unfortunately, it leaves computers vulnerable to DMA attacks unless an IOMMU is present and configured to be active.
• Unfortunately, CardBus and ExpressCard are vulnerable to DMA attacks unless the laptop has an IOMMU that is configured to thwart these attacks.
• That means that if IPoTB networking is used between a group of computers, there is no threat of such DMA attack between them.
• Mimosa in IEEE S & P 2015 presented a more practical solution for public-key cryptographic computations against cold-boot attacks and DMA attacks.
• An IOMMU, if present, can be used by an operating system with proper support, to close a computer's vulnerability to DMA attacks.
• This is not the only attack that allows encryption keys to be read from memory for example, a DMA attack allows physical memory to be accessed via a DMA channel.
• However, Firewire's speed advantages rely on low-level techniques such as direct memory access ( DMA ), which in turn have created opportunities for security exploits such as the DMA attack.
• Mimosa defeats against attacks that attempt to read sensitive data from memory ( including cold-boot attacks, DMA attacks, and other software attacks ), and it only introduces a small performance overhead.
• Systems may still be vulnerable to a DMA attack by an external device if they have a PCI and PCI Express in general, connects attached devices directly to the physical rather than virtual memory address space.
• The ability to execute the cold boot attack successfully varies considerably across different systems, types of memory, memory manufacturers and motherboard properties, and is more difficult to carry out than software-based methods or a DMA attack.
• While this enables high-speed and low-latency communication between data sources and sinks without unnecessary copying ( such as between a video camera and a software video recording application, or between a disk drive and the application buffers ), this can also be a security or media rights-restriction risk if untrustworthy devices are attached to the bus and initiate a DMA attack.