Martyna Z'muir: Protected "GLRP:EMs:Royal Spies:Trainings:Training4 Cryptography and You!" [edit=sysop:move=sysop]

2009-06-25T07:17:15Z

Protected "GLRP:EMs:Royal Spies:Trainings:Training4 Cryptography and You!" [edit=sysop:move=sysop]

Martyna Z'muir: New page: '''Title: Cryptography and You!''' '''Author: James''' Basic Ciphers Class: All of the ciphers I mention are in this book. Substitution Ciphers - Two-Shifted Cipher (Simple Substit...

2009-06-25T07:16:54Z

New page: '''Title: Cryptography and You!''' '''Author: James''' Basic Ciphers Class: All of the ciphers I mention are in this book. Substitution Ciphers - Two-Shifted Cipher (Simple Substit...

New page

'''Title: Cryptography and You!'''

'''Author: James'''

Basic Ciphers Class:
All of the ciphers I
mention are in this book.

Substitution Ciphers -

Two-Shifted Cipher
(Simple Substitution)
Plaintext: 
ABCDEFGHIJKLMNOPQRST
UVWXYZ

Ciphertext: 
CDEFGHIJKLMNOPQRSTUV
WXYZAB

Sample: 
"hello"

becomes 
"jgnnq"

Reverse Numbers Cipher
(Simple Substitution)
Plaintext: 
ABCDEFGHIJKLMNOPQRST
UVWXYZ

Ciphertext: 
26-25-24-23-22-21-20-1
9-18-17-16-15-14-13-12
-11-10-9-8-7-6-5-4-3-2-1

Sample: 
"hello"

becomes 
"19-22-15-15-12"

Two-Shifted with Extra
Vowels Cipher (Homophonic
Substitution)
Plaintext: 
ABCDEFGHIJKLMNOPQRST
UVWXYZAEIOU

Ciphertext:
CDEFGHIJKLMNOPQRSTUV
WXYZAB12345

Sample: 
"hello"

becomes 
"jgnnq" or "j2nn4" or
"jgnn4" or "j2nnq"

Transposition Ciphers -

3-Letter Columns Cipher
(Route Transposition)
Rule: 
Make columns of three
letters going down. Add
extra letters at end; X
is a good letter for this.
Put columns together and
read off rows.

Sample" 
"I trust Magnus"

becomes 
(Grid) 
iumn 
tsau 
rtgs 

(Final) 
"iumntsaurtgs"

Ciphers for Test: 

Numbers Cipher (Simple
Substitution)
Plaintext: 
ABCDEFGHIJKLMNOPQRST
UVWXYZ

Ciphertext: 
1-2-3-4-5-6-7-8-9-10-11-
12-13-14-15-16-17-18-19-2
0-21-22-23-24-25-26

Four-Shifted Cipher
(Simple Substitution)
Plaintext: 
ABCDEFGHIJKLMNOPQRST
UVWXYZ

Ciphertext: 
EFGHIJKLMNOPQRSTUVW
XYZABCD

Four-box Cipher (Route
Transposition)
Rule: 
Make columns of four
letters going down. Add
extra letters at end; X
is a good letter for this.
Put columns together and
read off rows.

Sample: 
"Hello James"

becomes 
(Grid) 
HOE 
EJS 
LAX 
LMX 

(Final) 
"HOEEJSLAXLMX"

<HR>
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GLRP:EMs:Royal Spies:Trainings:Training4 Cryptography and You! - Revision history

Martyna Z'muir: Protected "GLRP:EMs:Royal Spies:Trainings:Training4 Cryptography and You!" [edit=sysop:move=sysop]

Martyna Z'muir: New page: '''Title: Cryptography and You!''' '''Author: James''' Basic Ciphers Class: All of the ciphers I mention are in this book. Substitution Ciphers - Two-Shifted Cipher (Simple Substit...