# Substitution cipher

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## Definition of the noun Substitution cipher

What does Substitution cipher mean as a name of something?

**noun**

- [
*cryptography*] a method of encryption by which units of plaintext are substituted with ciphertext according to a regular system; the "units" may be single letters (the most common), pairs of letters, triplets of letters, mixtures of the above, and so forth. The receiver deciphers the text by performing an inverse substitution.

## Explanation

**Substitution cipher**: In cryptography, a substitution cipher is a method of encoding by which units of plaintext are replaced with ciphertext, according to a regular system; the "units" may be single letters, pairs of letters, triplets of letters, mixtures of the above, and so forth. The receiver deciphers the text by performing an inverse substitution.

- also known as 替换式密码

## Printed dictionaries and other books with definitions for Substitution cipher

Click on a title to look inside that book (if available):

### CompTIA Security+ Study Guide (2014)

SY0-401 by Emmett Dulaney, Chuck Easttom

Substitution Ciphers * A substitution cipher is a type of coding or ciphering system
that changes one character or symbol into another*. Character substitution can be
a relatively easy method of encrypting information. One of the oldest known ...

### Bulletin of Electrical Engineering and Informatics (2012)

Vol 1, No 1: March 2012 by Tole Sutikno, Auzani Jidin, Mochammad Facta

**Substitution cipher** is one of the basic components of
classical ciphers. * A substitution cipher is a method of encryption by which units of
plain* ...

### Global Trends in Computing and Communication Systems (2012)

4th International Conference, ObCom 2011, Vellore, TN, India, December 9-11, 2011, Part I. Proceedings by P. Venkata Krishna, M. Rajasekhara Babu, Ezendu Ariwa

Polyalphabetic * substitution cipher is a symmetric encryption algorithm*. In 1467,
Leon Battista Alberti developed the earliest form of polyalphabetic cipher. Later
on more modern forms were devised which changes substitution for each letter.

### Homomorphic Encryption and Applications (2014)

by Xun Yi, Russell Paulet, Elisa Bertino

* Substitution cipher is a method of encryption by which 1 Introduction 1*.1
Classical Ciphers.

### Foundations of Security (2007)

What Every Programmer Needs to Know by Christoph Kern, Anita Kesavan, Neil Daswani

However, * the substitution cipher is a very old, easily breakable cipher, and is now
used at most for children's games on the backs of cereal boxes*. In most
languages, English included, there is a natural frequency with which letters occur
.

### Cryptography Demystified (2002)

by John Hershey

* The general simple substitution cipher is a true cryptosystem, however, and like
all cryptosystems it has a keying variable associated with it*. The keying variable
for

*. We now ...*

**a simple substitution cipher**is the selection of the ciphertext alphabet### Historical Encyclopedia of Natural and Mathematical Sciences (2009)

by Ari Ben-Menahem

**An
early substitution cipher** is found in the Old Testament (Jeremiah 25:26 and 51:41
). There, the prophet wrote Sheshach for Babel (Babylon). The second letter of ...

### Elsevier's Dictionary of Information Security (2007)

by G. Manoilov, B. Radichkova

r **substitution cipher** (a method of hiding text in which plain text letters are
replaced by ciphertext letters or symbols) d Ersatzziffer f f chiffre m de substitution
r шифр m подстановки substitution cryptography Ersatzkryptografief
cryptographiefde ...

### International Encyclopedia of Military History (2004)

by James C. Bradford

**The substitution cipher** was the most popular way to send secret messages until
Arab scholars invented cryptanalysis, the science of unscrambling a message
without the key, in about the ninth century Military forces continue to
communicate ...

### A Dictionary of Computer Science (2016)

by Andrew Butterfield, Gerard Ekembe Ngondi, Anne Kerr

See **SUBSTITUTION CIPHER**. **substitution cipher** A*cipher, or a component of a
more complicated cipher, that involves the symbolateach place in the plaintext
being (effectively) looked up in a table, and replaced by the substitute symbol ...

### Encyclopedia of Intelligence and Counterintelligence (2015)

by Rodney Carlisle

It utilized **a substitution cipher** based on a tableau of 26 staggered alphabets with
row shifts and a key. The Union cryptologists were far ahead of the Confederates
when it came to effective ciphers and codes, as the Confederates were very ...

### The Demon Dictionary Volume Two (2014)

An Exposé on Cultural Practices, Symbols, Myths, and the Luciferian Doctrine by Kimberly Daniels

The
Theban alphabet is a writing system used almost exclusively by Wiccans as **a
substitution cipher** to protect magical writings from prying eyes. Its origins are
unknown; ...

### The Demon Dictionary (2014)

by Kimberly Daniels

The
Theban alphabet is a writing system used almost exclusively by Wiccans as **a
substitution cipher** to protect magical writings from prying eyes. Its origins are
unknown; ...

### Dictionary of it Terms (2009)

by S.k.bansal

*The resulting ciphertext is called substitution cipher*. substrate: A transparent
layer ...

### The Encyclopedia of Nineteenth-century Land Warfare (2001)

An Illustrated World View by Byron Farwell

"**Substitution cipher**" substitutes letters
or characters for the letter intended. "Transposition cipher" transposes the letters
after ...

### Encyclopaedia of Hell (2011)

An Invasion Manual for Demons Concerning the Planet Earth and the Human Race Which Infests It by Martin Olson

For example, the curious reader can decode certain cryptic passages by utilizing
**an online “substitution cipher** generator.” The bizarre intricacy of the manuscript
itself5, its charts, diagrams, paradoxical layering of texts and recursive footnotes,
...

### Talal Abu-Ghazaleh ICT Dictionary = معجم طلال أبو غزالة لتقنية المعلومات و الإتصالات (2013)

by منصور الطوالبة

Talal Abu-Ghazaleh ICT Dictionary Subscription Computing Subscription Site
Subset **Substitution Cipher** Substitutivity Substrate Substring Subsystem Subtitle
Subtracter Subtransaction Subtree Subweb Successor تالي، لاحق. معجم طلال ...

### The Dictionary of Made-Up Languages (2011)

From Elvish to Klingon, The Anwa, Reella, Ealray, Yeht (Real) Origins of Invented Lexicons by Stephen D Rogers

For
example, imagine you're creating **a simple substitution cipher** for the English
alphabet. You will present each letter using a series of vertical lines. | is A, || is B,
||| is C, ...

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## Video about Substitution cipher

**Substitution cipher Meaning**

Video shows what substitution cipher means. a method of encryption by which units of plaintext are substituted with ciphertext according to a regular system, the ...

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