See Question.pdf

**Subject Computer Science Cryptography**

See Question.pdf

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Decrypt Message Encrypted Using Affine Cipher

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Affine

Decrypt

Message

Ciphertext

Modulo

Plaintext

Ha

Alphabet

Computer Science

Cryptography

Three Discussion Questions about Network Security

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Difficult

Secure

Wired

Network

Wireless

Difference

WAN

MAN

CAN

Campus

Metropolitan

Wide

Area

Type

Attack

Nation-state

Sponsored

BYOD

Security

FIPS

NIST

Local

LAN

Topology

Difficult

Secure

Wired

Network

Wireless

Difference

WAN

MAN

CAN

Campus

Metropolitan

Wide

Area

Type

Attack

Nation-state

Sponsored

BYOD

Security

FIPS

NIST

Local

LAN

Topology

Modified Linear Feedback Shift Register Cipher

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Computer Science

Cryptography

LFSR

Linear

Feedback

Shift

Register

Mod

Matrix

Equation

Coefficients

Cipher

Programming, Ciphering and Deciphering Schemes

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Computer Science

Vigenere Ciphering

Deciphering Schemes

Letters

Orders

Text Processing

Input

Output

Transposition Schemes

Detection

Permutation

Computer Science

Vigenere Ciphering

Deciphering Schemes

Letters

Orders

Text Processing

Input

Output

Transposition Schemes

Detection

Permutation

Two Problems with RSA and Affine Map on Digraphs

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RSA

Algorithm

Affine

Map

Digraph

Letter

Alphabet

Ciphertext

Message

Encrypted

Numeral

Letter

Character

Statistical

Analysis

Encipher

Frequent

Key

Code

Break

Decipher

Plaintext

Integer

Block

RSA

Algorithm

Affine

Map

Digraph

Letter

Alphabet

Ciphertext

Message

Encrypted

Numeral

Letter

Character

Statistical

Analysis

Encipher

Frequent

Key

Code

Break

Decipher

Plaintext

Integer

Block