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Little Puzzle Applications for Reverse Code Engineers, with the goal to break a protection scheme legally for exercise. These often have a lot of built-in security to prevent attackers from succeeding, at the end the reverse engineer often writes a so-called keygen (key generator) and a paper to show s/he succeeded and how.

2 votes
1 answer
807 views

Radare2 does not display the entire assembler code

I am trying to solve this ELF - Ptrace crack me. Here are the commands I use : I start radare2 with the crack me as argument. radare2 ch3.bin I decide to go to the main and print the assembly cod …
Anonymous's user avatar
  • 221
3 votes
1 answer
11k views

How to print the value of register with Radare 2

I am trying to solve this ELF - Ptrace challenge. I use Radare 2. This is the commands I execute to print the assembly code. radare2 ch3.bin [0x080482f0]> aaa [[anal.jmptbl] Missing cjmp bb in predec …
Anonymous's user avatar
  • 221