Cryptography von smith laurence (32 Ergebnisse)

Paperback. Zustand: Good. Those who delight in puzzles can find much to ponder here. -- Science News LetterWill be well received by anyone really interested in the subject. -- Scientific Book Club ReviewReaders interested in secret writing will find this book an excellent elementary explanation of transposition and substitution ciphers, codes, and their solutions. More than 150 problems provide practical application as well as tests of skill and ingenuity.After a brief description of the history of secret writing, the reader is introduced to fundamental principles of ciphers -- transposition and substitution -- and given an understanding of the various methods of enciphering and deciphering secret messages. The author covers geometrical patterns, route transcription, columnar transposition, and other methods used in transposition; under substitution, he treats mixed cipher systems, single-alphabet and polyalphabetical substitution, mechanical devices, the Vigenere system, etc. A discussion of cryptanalysis leads the reader into 151 problems for which answers are provided at the end. Appendixes offer notes on enciphering Japanese; and explanation of the Baconian Biliteral Cipher; frequency tables for English, French, German, Italian, and Spanish.…

Paperback. Zustand: Very Good. Those who delight in puzzles can find much to ponder here. -- Science News LetterWill be well received by anyone really interested in the subject. -- Scientific Book Club ReviewReaders interested in secret writing will find this book an excellent elementary explanation of transposition and substitution ciphers, codes, and their solutions. More than 150 problems provide practical application as well as tests of skill and ingenuity.After a brief description of the history of secret writing, the reader is introduced to fundamental principles of ciphers -- transposition and substitution -- and given an understanding of the various methods of enciphering and deciphering secret messages. The author covers geometrical patterns, route transcription, columnar transposition, and other methods used in transposition; under substitution, he treats mixed cipher systems, single-alphabet and polyalphabetical substitution, mechanical devices, the Vigenere system, etc. A discussion of cryptanalysis leads the reader into 151 problems for which answers are provided at the end. Appendixes offer notes on enciphering Japanese; and explanation of the Baconian Biliteral Cipher; frequency tables for English, French, German, Italian, and Spanish.…

Paperback. Zustand: Fair. Those who delight in puzzles can find much to ponder here. -- Science News LetterWill be well received by anyone really interested in the subject. -- Scientific Book Club ReviewReaders interested in secret writing will find this book an excellent elementary explanation of transposition and substitution ciphers, codes, and their solutions. More than 150 problems provide practical application as well as tests of skill and ingenuity.After a brief description of the history of secret writing, the reader is introduced to fundamental principles of ciphers -- transposition and substitution -- and given an understanding of the various methods of enciphering and deciphering secret messages. The author covers geometrical patterns, route transcription, columnar transposition, and other methods used in transposition; under substitution, he treats mixed cipher systems, single-alphabet and polyalphabetical substitution, mechanical devices, the Vigenere system, etc. A discussion of cryptanalysis leads the reader into 151 problems for which answers are provided at the end. Appendixes offer notes on enciphering Japanese; and explanation of the Baconian Biliteral Cipher; frequency tables for English, French, German, Italian, and Spanish.…

Paperback. Zustand: Very Good. It's a well-cared-for item that has seen limited use. The item may show minor signs of wear. All the text is legible, with all pages included. It may have slight markings and/or highlighting.

Paperback. Zustand: Fair. The item might be beaten up but readable. May contain markings or highlighting, as well as stains, bent corners, or any other major defect, but the text is not obscured in any way.

Zustand: Good. Good condition. A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains.

Zustand: Good. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Zustand: Good. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Paperback. Zustand: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Paperback. Zustand: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Paperback. Zustand: Very Good. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.

Zustand: Very Good. Former library copy. Pages intact with possible writing/highlighting. Binding strong with minor wear. Dust jackets/supplements may not be included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Zustand: good. Befriedigend/Good: Durchschnittlich erhaltenes Buch bzw. Schutzumschlag mit Gebrauchsspuren, aber vollständigen Seiten. / Describes the average WORN book or dust jacket that has all the pages present.

Zustand: very good. Gut/Very good: Buch bzw. Schutzumschlag mit wenigen Gebrauchsspuren an Einband, Schutzumschlag oder Seiten. / Describes a book or dust jacket that does show some signs of wear on either the binding, dust jacket or pages.

Zustand: Good. 1955. First Edition Thus. 164 pages. Paperback book with pictorial cover. Contains ex-libris plate. Pages and binding are presentable with no major defects. Minor issues present such as mild cracking, inscriptions, inserts, light foxing, tanning and thumb marking. Overall a good condition item. Paper cover has mild edge wear with light rubbing and creasing. Some light marking and tanning.…

Trade Paperback. Zustand: Good. 164 pp. Solidly bound copy with moderate use. Occassional pencil markings on text. Stains on top and fore edges. Marks on front cover. Creased front cover. Menten Inc. (Cover Design) (illustrator).

Paperback. Zustand: Brand New. 164 pages. 8.00x5.50x0.25 inches. In Stock.

Paperback. Zustand: New.

Paperback. Zustand: Brand New. 164 pages. 8.00x5.50x0.25 inches. In Stock.

Zustand: New.

Zustand: New. In English.

Zustand: fair to good. Reprint Edition. 164, wraps, tables, appendices, bibliography, glossary, index, covers soiled, some wear to cover and spine edges small rough spot front cover, covers partly separated from text. Contains problems and answers. Reprint of the First Edition (originally published in 1943) with corrections.…

Zustand: New.

Zustand: As New. Unread book in perfect condition.

paperback. Zustand: New. In shrink wrap. Looks like an interesting title.

Hardcover. Zustand: Good. Zustand des Schutzumschlags: Good. First Edition. Red top page edges. Publication of 164 pages. Name of the previous owner. The dust jacket is a little shelf rubbed and a touch edge worn. The boards have slightly faded marks, remain strong and in good condition. Internally the pages are clean and complete. Tightly bound and presented in cellophane. The binding is excellent. GK. Our orders are shipped using tracked courier delivery services.…

Zustand: Used - Good. VG hardback in Fair dust jacket, so good overall. 1st edition, 1944. Owner's name on front free endpaper. Very light foxing on page edges. Binding tight. Dust jacket not price-clipped; light browning and foxing; losses to upper and lower spine; protected in removable clear film.…

Paperback. Zustand: New.

Taschenbuch. Zustand: Ausreichend. Aufl. 1955 * Einband: leicht fleckig, leicht nachgedunkelt, deutliche Gebrauchsspuren * Schnitt: nachgedunkelt * Buchrücken: abgerieben * Seiten: an den Rändern nachgedunkelt, wenige Seiten geknickt.

Hardcover. Zustand: Very Good. 1st Edition. First Edition / First Print. Hardback copy in red cloth boards with white lettering to spine. Unclipped dustjacket (12s 6d net) in new removable protective clear sleeve. 164pp. Not library copy, no inscriptions, few marks and rubbing to dustjacket. (28/2).