FridgeLock: Preventing Data Theft on Suspended Linux with Usable Memory Encryption — Chair for IT Security
To secure mobile devices, such as laptops and smartphones, against unauthorized physical data access, employing Full Disk Encryption (FDE) is a popular defense. This technique is effective if the device is always shut down when unattended. However, devices are often suspended instead of switched off. This leaves confidential data such as the FDE key, passphrases and user data in RAM which may be read out using cold boot, JTAG or DMA attacks. These attacks can be mitigated by encrypting the main memory during suspend. While this approach seems promising, it is not implemented on Windows or Linu...
Source: in.tum.de