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Codes Ciphers And Secret Writing

Author : Martin Gardner
ISBN : 9780486320311
Genre : Games & Activities
File Size : 36.18 MB
Format : PDF, Kindle
Download : 128
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Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks . . . even invisible writing and sending messages through space. 45 diagrams.
Category: Games & Activities

Top Secret

Author : Paul B. Janeczko
ISBN : 0763629723
Genre : Juvenile Nonfiction
File Size : 78.23 MB
Format : PDF, Kindle
Download : 911
Read : 1030

Presents history, trivia, and code-breaking tales in a guide book to the world of secret writing that includes examples of a variety of codes and ciphers.
Category: Juvenile Nonfiction

Codes And Ciphers

Author : John Laffin
ISBN : UOM:39015000526981
Genre : Juvenile Nonfiction
File Size : 37.76 MB
Format : PDF
Download : 420
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An explanation of the development, methods, and use of cryptography throughout history.
Category: Juvenile Nonfiction

Codes Ciphers And Secret Languages

Author : Fred B. Wrixon
ISBN : PSU:000017870764
Genre : Ciphers
File Size : 73.2 MB
Format : PDF, ePub
Download : 495
Read : 600

Presents Indian sign language, Morse code, Jefferson's cipher wheel and other European and American codes and ciphers from ancient times to the present, in their historical context
Category: Ciphers


Author : Laurence Dwight Smith
ISBN : 048620247X
Genre : Business & Economics
File Size : 42.37 MB
Format : PDF, Kindle
Download : 438
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"Those who delight in puzzles can find much to ponder on here," declared Science News Letter of this excellent introduction to cryptography. Concise and simple explanations cover transposition and substitution ciphers, codes, and their solutions. More than 150 problems provide practical applications as well as tests of ingenuity.
Category: Business & Economics

Secret Codes And Ciphers

Author : Bernice Kohn Hunt
ISBN : STANFORD:36105049320521
Genre : Juvenile Nonfiction
File Size : 20.34 MB
Format : PDF, Docs
Download : 461
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Describes famous cases involving codes and ciphers, explains different ciphers, and tells how to create your own.
Category: Juvenile Nonfiction

Fun With Secret Writing

Author : Geoffrey Frederick Lamb
ISBN : 0486420981
Genre : Games
File Size : 61.68 MB
Format : PDF, Kindle
Download : 474
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Examines a number of different ways of writing secret messages, including using invisible ink and a variety of ciphers. Provides suggestions and aids for code-breaking.
Category: Games

Handbook Of Communications Security

Author : F. Garzia
ISBN : 9781845647681
Genre : Technology & Engineering
File Size : 29.30 MB
Format : PDF, Docs
Download : 555
Read : 902

Communications represent a strategic sector for privacy protection and for personal, company, national and international security. The interception, damage or lost of information during communication can generate material and non material economic damages from both a personal and collective point of view. The purpose of this book is to give the reader information relating to all aspects of communications security, beginning at the base ideas and building to reach the most advanced and updated concepts. The book will be of interest to integrated system designers, telecommunication designers, system engineers, system analysts, security managers, technicians, intelligence personnel, security personnel, police, army, private investigators, scientists, graduate and postgraduate students and anyone that needs to communicate in a secure way.
Category: Technology & Engineering

Word Play Write Your Own Crazy Comics 2

Author : Chuck Whelon
ISBN : 9780486481661
Genre : Juvenile Nonfiction
File Size : 73.69 MB
Format : PDF, Mobi
Download : 410
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More than 60 pages of cartoon panels depict comic scenarios, all with empty word balloons for aspiring comedy writers to fill with snappy dialogue. Kids can color the pictures, too!
Category: Juvenile Nonfiction