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Beginner Hint

\n\n- This challenge is in the Rev (Reverse Engineering) category.\n- Flag checkers are a common theme in Rev problems.\n- A flag checker executable or script accepts player input and tells you whether it matches the flag.\n- The provided file is the ELF binary `read-a-binary`.\n- The goal is to find an input (the flag) that makes the binary print `Correct!` by analyzing the binary.\n- There are a variety of tools available that can analyze ELF binaries.\n- Some tools can show a higher level of representations than others.\n\n

\n","descriptionJa","🦙 < ELFバイナリの処理内容を読んでみよう！\n\n

初心者向けヒント

\n\n- この問題は Rev カテゴリー、すなわち Reverse Engineering に関する問題です。\n- フラグチェッカーは、Rev の問題によくある題材の一つです。\n- フラグチェッカーと呼ばれる実行ファイルやスクリプトが、プレイヤーの入力を受け取り、その入力がフラグと一致するかどうかを出力します。\n- この問題の配布ファイルでは、ELF 形式のバイナリ `read-a-binary` が与えられています。\n- 今回のゴールは、`read-a-binary` バイナリの処理内容を解析して、 `read-a-binary` バイナリの出力が `Correct!` となるような入力（= フラグ）を探すことです。\n- ELFバイナリを解析できるツールには、様々な種類のものがあります。\n- ツールの種類によっては、より高級な表現を使って解析できます。\n\n

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