Is it safe to store secrets in memory?
RamCrypt is a project which encrypts the majority of the memory of individual processes with AES128 in XEX mode, so all secrets in the processes are safe in memory, even if all of the memory is forensically acquired. The memory is encrypted with TRESOR, so the encryption key is never present in RAM.
Is encrypted data safe?
Generally, encryption is safe. Data transmitted and stored with encryption is safer than when left unencrypted. The average user uses encryption automatically many times a day when using a web browser or mobile app. Manual file encryption is safe with responsible handling of the decryption keys.
How do you protect data in memory?
To protect the sensitive data, a direct idea is to encrypt the data when the processor does not access them. On the observation, we have developed a lightweight memory encryption, called LeMe, to protect the sensitive data in the application.
Is it safe to store passwords in memory?
The kernel allows one process to read and write the memory of the other, through ptrace (), provided that both processes run under the same user ID, or that the process which does the ptrace () is a “root” process. Similar functionality exists in Windows. The bottom-line is that passwords in RAM are no safer than what the operating system allows.
Why is confidential data stored in the memory of a process?
By definition, by storing some confidential data in the memory of a process, you are trusting the operating system for not giving it away to third parties. The OS is your friend, because if the OS is an enemy then you have utterly lost. Now comes the fun part.
What happens when data is stored in RAM?
An unfortunate consequence is that some data, purportedly held in RAM, makes it to a physical medium where it will stay until overwritten. In particular, it will stay there if the power is cut. This allows for attacks where the bad guy grabs the machine and runs away with it, to inspect the data later on.
How is the illusion of free memory maintained?
The illusion is maintained by swapping RAM contents with a dedicated space on the disk, where free space is present in larger quantities; this is called virtual memory. Applications need not be aware of it, because the kernel will bring back the pages when needed (but, of course, disk is much slower than RAM).