The most recommended cryptography books

Ah, Dan Brown. Love him or hate him, he’s a paragon of the modern thriller. Let’s go way back to 1998. It was pre-DaVinci Code, and he released his first novel, Digital Fortress. For the time period, it was a unique idea. A woman cryptologist at the NSA gets embroiled in a high-stakes murder mystery and the only way through is to solve the code. There are a lot of issues with this book, primarily that the author couldn’t be bothered to check his work and misuses bits and bytes throughout the whole novel which makes the code-breaking premise ridiculous. But to be fair, this was 1998 and for a first novel, it’s still a fun ride. So, if you’re a Dan Brown fan or love a fast-paced easy read give it a try. If you have even a basic understanding of how encryption works you may… show more.

Mundy’s unputdownable book tells the story of the women behind some of the most significant code-breaking triumphs of the war. The work of women like Elizabeth Friedman – who got her start unpicking the codes of Prohibition-era liquor smugglers – was one of the war’s best-kept secrets.

A thrilling personal account by the brilliant cryptographer, Leo Marks, who was only 22 when employed by the SOE. It was Marks who gave the special codes to famous SOE agents like Violette Szabo, Noor Inayat Khan, and Nancy Wake before they left for the field. An insight into how the code war between Germany and England played out, often with disastrous consequences.

David Kahn explains the most widely-known effort (widely-known today but in complete secrecy then) to decipher messages sent by the Germans using their Enigma machines during World War II. This book looks at the groundbreaking work done by Polish mathematicians in the 1930s, how Enigma machines were rescued from sinking German U-boats, and how Bletchley Park in Britain became the focal point of breaking these transmissions. Much of the book focuses on how Enigma machines, rotors, and codebooks were confiscated from German submarines and surface vessels, and how these were then used to allow the Allies, by the war's end, to read German messages almost as quickly as the Germans could send them.

If I had to recommend just one picture book about languages, I’d choose this one, because it does so much. First, of course, it shares a long-secret episode in American history—the triumph of the Navajo “code talkers” in World War II. (Not the first time bilingual heroes came to our country’s rescue: see my own picture book Gingerbread for Liberty! How a German Baker Helped Win the American Revolution.)  But this book also addresses language justice in a way that kids will find easy to understand. Through Chester, we feel the pain and confusion of being told one’s own language is “bad” and worthless, and the pride of having it finally treated with respect. We also see how language isn’t just a set of words, but carries culture, tradition, religion, a whole way of life.   

It is so much like my book: A woman who uses her talent to save others at great personal cost to herself.

Smith used her talents to overcome crime bosses and smugglers, then transferred her skills to fight Nazis in the war. She acted in secret to outwit Hitler. The concept is riveting and in parallel to my own story of a woman who uses her particular skills to outwit others.

She didn’t do anything so noble as to save the world from Naziism, but she saved her family, gave her husband his life back, and had a great time doing it.

One of the books that I open at least once a year, and which I always recommend to students and mentees. Security Engineering isn’t a book (only) about cryptography, yet one about a topic that a cryptographer should know well: security engineering, or the design, implementation, and testing of systems that must be reliable in hostile and adversarial environments. Cryptography is indeed often just a small, yet critical, component of larger security systems. A good cryptographer must therefore not limit themselves to their field, but understand the risks, practical constraints, and functional needs of the environment where cryptography is integrated. Anderson’s book is the undisputed reference in that space.  

I can never understand why so many critics and readers are snooty about Dan Brown. For me, he does what every good storyteller should do: takes you on a page-turning journey. And his style is both readable and erudite, whatever the snobs might say.

Although this could technically be described as a crime thriller, it remains perhaps Brown’s best action-adventure so far, and regardless of whether Tom Hanks is your idea of Professor Robert Langdon or not, the thrills just keep on coming as you follow breathlessly through the streets and landmarks of Paris, London and beyond. Stylish and swaggering.

An amazing storyteller and unrivalled expert on World War II, Sir Max is best in class when it comes to combining the big and little pictures. He renders pithy judgments on thorny subjects. This may be the best overview of intelligence from east to west, north to south in World War II. Again like David Kahn and Christopher Andrew, Sir Max is generous to fellow writers and gracious to readers. I remember a talk at a Washington, DC bookstore to which a reader brought a stack of Hastings books—perhaps 10 or so—for his autograph. Sir Max did not hesitate, cheerfully reaching for his pen.

About WWII codebreaking, the reason this makes my ‘Best 5’ is that, besides being constantly inventive and informative, it’s also very funny. (I’m that shallow.)

There are similarities, I think, with Catch 22, in the plot’s intelligence, absurdity, and dreamlike turns.

I think Stephenson’s character Bobbie Shaftoe, a soldier who carries out counterintelligence deceptions, is hilarious. Also, Stephenson’s use of real historical characters–he presents believable portraits of Alan Turing, Douglas MacArthur, Karl Dönitz, and Hermann Göring, with a walk-on appearance by Albert  Einstein–gave me license to do so in my own fiction.