[HN Gopher] Research of RAM data remanence times
       ___________________________________________________________________
        
       Research of RAM data remanence times
        
       Author : mkopec
       Score  : 6 points
       Date   : 2024-12-13 23:16 UTC (1 days ago)
        
 (HTM) web link (blog.3mdeb.com)
 (TXT) w3m dump (blog.3mdeb.com)
        
       | westurner wrote:
       | From https://blog.3mdeb.com/2024/2024-12-13-ram-data-decay-
       | resear... :
       | 
       | > _The main goal is to determine the time required after powering
       | off the platform for all the data to be irrecoverably lost from
       | RAM._
       | 
       | Cold boot attack: https://en.wikipedia.org/wiki/Cold_boot_attack
       | 
       | Data remnance: https://en.wikipedia.org/wiki/Data_remanence
       | 
       | Ironically, quantum computers have the opposite problem;
       | coherence times for QC qubits are still less than a second: there
       | is not yet a way to store qubits for even one second.
       | 
       | (2024: 291+-6us, 2022: 20us)
       | 
       | "Cryogenically frozen RAM bypasses all disk encryption methods"
       | (2008) https://www.zdnet.com/article/cryogenically-frozen-ram-
       | bypas...
       | 
       | And that's part of why secure enclaves and TPM.
        
         | westurner wrote:
         | From https://news.ycombinator.com/item?id=37099515 :
         | 
         | > _If quantum information is never destroyed - and classical
         | information is quantum information without the complex term i -
         | perhaps our [RAM] states are already preserved in the universe;
         | like reflections in water droplets in the quantum foam_
         | 
         | According to the "Air gap malware" Wikipedia article's
         | description of GSMem, the x86 RAM bus can be used as a low
         | power 3G antenna. And, HDMI is an antenna, and, Ungrounded
         | computers leak emanations to the ungrounded microphone port on
         | the soundcard.
         | 
         | Air gap malware: https://en.wikipedia.org/wiki/Air-gap_malware
         | 
         | Stochastic forensics:
         | https://en.wikipedia.org/wiki/Stochastic_forensics
        
       ___________________________________________________________________
       (page generated 2024-12-15 23:01 UTC)