Last Updated：2025/11/29
To teach students about historical cryptography, the professor demonstrated the Playfair cipher by showing how to encrypt pairs of letters on the blackboard.
See correct answer
To teach students about historical cryptography, the professor demonstrated the Playfair cipher by showing how to encrypt pairs of letters on the blackboard.
音声機能が動作しない場合はこちらをご確認ください
Edit Histories（0）
