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Cold Boot Attacks on Windows Vista BitLocker Encryption Keys

2008-02-22 17:00:07 by Editor in Digg / Security
 
Contrary to popular assumption, DRAMs used in most modern computers retain their contents for seconds to minutes after power is lost, even at operating temperatures and even if removed from a motherboard. Although DRAMs become less reliable when they are not refreshed, they are not immediately erased, and their contents persist
 
Tags: modern computers retain, contents persist, contents, drams, popular assumption, contrary, minutes, temperatures, reliable
 
 
 
 
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Cold Boot Attacks Against Disk Encryption

2008-02-21 13:29:18 by schneier in Schneier on Security
 
...DRAMs are the main memory chips used to store data while the system is running. Virtually everybody, including experts, will tell you that DRAM contents are lost when you turn off the power. But this isnt so. Our research shows that data in DRAM actually fades out gradually over a period of seconds to minutes, enabling an attacker to read the...
 
Tags: main memory chips, memory, todays dram memories, dram, dram contents, memory contents, disk encryption, hard, hard disk contents
 
 
 
 
 
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Sergey Zarubin, 31yo
CISSP, CCSP
Moscow, Russia