Throughout the history of mankind, passwords have always given people a mysterious impression. For a long period of time, cryptography has been inseparable from political and military struggles. Whether in ancient battlefields or in modern wars, cryptography plays an important role. It is an important means for both warring parties to encrypt, decipher, transmit, and obtain intelligence. Therefore, it has become an important element in many film and television dramas, especially spy war dramas. In the current information network era, passwords are widely used in all aspects of politics, economy, and society. Passwords are not only an important magic weapon for maintaining network space security, but also the cornerstone of building an immune system for network information systems and a network trust system. It can even be said that encryption is directly related to national political security, economic security, national defense security and information security. It is not only a strategic resource to protect the fundamental interests of the country and people, but also an important support for realizing the modernization of the national governance system and governance capabilities. This book is a popular science work about passwords. Readers can not only learn about the past and present of foreign classical ciphers, Chinese classical ciphers, modern ciphers, World War I ciphers, mechanical ciphers, World War II ciphers, modern ciphers and other communication ciphers from the book, but they can also stand at a new height of the symbol system and look back at the great contribution that ciphers have made to mankind in "occupying and firmly staying at the top of the biological chain". A great contribution, looking backward to future cryptography such as quantum cryptography, quantum-resistant cryptography, quantum computers and DNA computers; it not only allows readers to experience the exciting game of code deciphering, but also reminds the two important directions of cryptography research, namely "anti-DNA computational cryptography" and "universal" cryptography systems for specific people or things.
Reader comments
The book mentions that "passwords are not only an important magic weapon for maintaining the security of cyberspace, but also the cornerstone of building the immune system and network trust system of the network information system." This made me realize how important passwords are to our lives. I think everyone interested in cryptography should read this book.
The book mentions that "passwords are not only an important magic weapon for maintaining the security of cyberspace, but also the cornerstone of building the immune system and network trust system of the network information system." This made me realize how important passwords are to our lives. I think everyone interested in cryptography should read this book.