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Tagged with entropyfile-encryption
3 questions
1vote
1answer
472views
Why does some Ransomware encrypt also the file header and trailer?
Some time ago I read an article that mentioned that it is possible for some ransomware to change the magic numbers of a file (that makes sense). However, the authors claimed that their method was ...
14votes
3answers
16kviews
How long should zip encryption password be for it take 10 years to crack?
I am using zip 3.0.0 on macOS High Sierra and Ubuntu. Here is my zip version on macOS: $ zip --version | head Copyright (c) 1990-2008 Info-ZIP - Type 'zip "-L"' for software license. This is ...
3votes
1answer
991views
Are encrypted files safe in Windows 10 when using PINs?
In Secrets and Lies, Bruce Schneier writes: Many keys are generated from passwords or passphrases. A system that accepts 10-character ASCII passwords might require 80 bits to represent, but has ...