Digital Fortress by Dan Brown

Techno-thriller “Digital Fortress” is a book by “The Da Vinci Code” author Dan Brown. Susan Fletcher, a skilled cryptographer who works for the National Security Agency, is the protagonist of the book (NSA). Susan is asked to crack a secret encryption dubbed “Digital Fortress” that the NSA has found. She quickly learns, though, that the code is much trickier than she had anticipated and that it might potentially bring down the entire NSA code-breaking apparatus. Susan fights against the clock to decipher the code and avert a devastating strike with the assistance of her fiance and a renegade NSA agent. Fast-paced and exciting, “Digital Fortress” examines the relationship between technology, cryptography, and national security.