NFC

NFC Reader NFC Tools https://arxiv.org/pdf/1705.02081.pdf Lack of security protection of communication. Most NFC communications do not include encryption mechanisms during its data exchange, it relies on the short range (i.e., less than 4 cm) to guarantee absence of eavesdropping attacks. However, the
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The Term Hacker.

the term “hacker” has evolved quite dramatically over the years as the public’s awareness of technology has increased and as a sensationalist mass media continues to color the public’s opinion of hackers. In the beginning, a hacker was someone who worked passionately for the sake of curiosity and exploration.
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Linux RE 101

Linux-RE-101 documenti sul mondo del Reverse Engineering di Linux; RE 101 linux-re-101 ============ Work in progress as I am actively collecting these. #### Keep these handy - Describes how all syscalls for all architectures work (what registers are for input, output, error, ..) http://man7.org/linux/man-pages/man2/syscall.2.html -
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Reverse Engineering - Zoom on Snippet

SECTION  .data my_str:     db     'The pool on the roof must have a leak.', 0 SECTION  .text GLOBAL _start _start:     nop     push byte 'x'      ; second function parameter     push dword my_str  ; first function parameter  
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Reverse Engineering - Playing with gdb

Playing a very basic level of a known wargame the other day I was trying to solve the following problem: Given an executable (ELF, Linux) which accepts a password as an argument and verifies if this is correct, find this string. As most of the problems, it’s quite easy if
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