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License: Apache License 2.0
An experimental obfuscator for software protection using the SMT-based code generation
License: Apache License 2.0
addl $3, %eax
jz hoge
のaddl
が難読化されて
addl $3, %eax
subl $3, R0+1*8(%rip)
jz hoge
などとなってしまうケースが発生していた.
(上の例では%eax
の値に基づいていたはずのゼロフラグが,R0+1*8
の値で更新されてしまう)
libs/GAS/
とlibs/SMT/
の処理を完全に独立させる.
libs/GAS/
で入出力例を生成し,libs/SMT/
に渡して命令列を生成libs/SMT/
で命令列を生成し,libs/GAS/
に渡して実行可能コードを生成ターミナルのエスケープシーケンスをライブラリ化して分離する
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