что за бред про замороженные мозги?

[Bazel]

http://www.3dnews.ru/news/shifrovani..._ne_panatseya/

с дампом на харде - бесспорно, но про память это кино про сферического коня в вакууме.

[dark_rex]

Почему это бред?

Цитата

Contrary to simple models (and perhaps common belief), the contents of modern SDRAM modules aren't lost immediately when the computer is shutdown; instead, the contents fade away - a process that takes only seconds at room temperatures, but which can be extended to minutes at low temperatures. As an example, it is therefore possible to get hold of an encryption key if it was stored in ordinary working memory (i.e. the SDRAM modules).

http://en.wikipedia.org/wiki/Random_access_memory

Цитата

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 sufficiently for malicious (or forensic) acquisition of usable full-system memory images. We show that this phenomenon limits the ability of an operating system to protect cryptographic key material from an attacker with physical access. We use cold reboots to mount attacks on popular disk encryption systems — BitLocker, FileVault, dm-crypt, and TrueCrypt — using no special devices or materials. We experimentally characterize the extent and predictability of memory remanence and report that remanence times can be increased dramatically with simple techniques. We offer new algorithms for finding cryptographic keys in memory images and for correcting errors caused by bit decay. Though we discuss several strategies for partially mitigating these risks, we know of no simple remedy that would eliminate them.

http://citp.princeton.edu/memory/

http://citp.princeton.edu/pub/coldboot.pdf

[Slavchik]

Цитата

Почему это бред?

потому что сохранение информации при помощи охлаждении азотом на несколько дней - бред. Любой конденсатор при низких температурах теряет работоспособность, а если посмотреть свойства полупроводников, то можно легко найти такой факт - при температурах ниже 60 град. полупроводник становится диэлектриком. В статьях из википедии речь идет о минутах, а не днях.