Digital Fortress

Main Characters and Their Development

• Susan Fletcher: The NSA's chief cryptographer, a smart and beautiful woman who faces moral and professional dilemmas. Throughout the book, she demonstrates resilience and determination, fighting for truth and justice.
• David Becker: A language professor and Susan's fiancé. He becomes entangled in dangerous events related to the search for the encryption key. His character evolves from an ordinary teacher to someone willing to risk his life to save others.
• Trevor Strathmore: The NSA's deputy director, who is willing to take extreme measures to protect national security. His actions and motives become increasingly questionable as the plot unfolds, leading to tragic consequences.
• Greg Hale: An NSA cryptographer suspected of betrayal. His character is complex and multifaceted, and his true motives and loyalties are revealed throughout the book.
• Ensei Tankado: A former NSA employee and creator of «Digital Fortress». His actions are driven by a desire to expose NSA secrets and avenge the injustice he suffered. Despite his radical methods, his character evokes sympathy.