#2.1 What is cryptography? #2.2 Keys #2.3 Attacker threat Models #2.4 Measures of Security #2.5 Caesar Cipher-part1 #2.6 Caesar Cipher-part2 #2.7 Monoalphabetic Substitution Cipher #2.8 Playfair Cipher #2.9 part1-Vigenère Cipher #2.10 Vigenère Cipher-part2 #2.11 One-Time Pads-part1 #2.12 One-Time Pads-part2 #2.13 One-Time Pads-part3 #2.14 Rail fence #2.15 Transposition Ciphers #2.16 Rows-Columns transposition

#3.1 Categories of Modern cryptography #3.2 Stream ciphers #3.3 Block Ciphers #3.4 Feistel Cipher #3.5 DES structure #3.6 Simplified DES #3.7 Key -DES #3.8 DES Encrypt #3.9 Double DES (2DES) #3.10 Block Cipher Modes of Operation #3.11 Cipher Block Chaining mode (CBC) #3.12 Output Feedback mode (OFB) #3.13 Counter (CTR) Mode #3.14 Error propagation #3.15 Integrity and Authenticity #3.16 Cryptographic Hashes #3.17 Authentication #3.18 Message Authentication Codes (MACs) #3.19 HMAC

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#7.1 true and false #7.2 mid1-Caeser #7.3 mid1-Caesar’s Cipher #7.4 mid2-RSA #7.5 mid1-Vignere Cipher #7.6 mid1-monoalphabetic cipher and polyalphabetic cipher #7.7 mid1-Playfair #7.8 One-time pad-mid1 #7.9 Vigenere cipher-mid1 #7.10 S-DES-mid1 #7.11 Playfair-mid1 #7.12 Vigenere cipher-mid1 #7.13 dencrypted -mid1 #7.14 s-des-mid1 #7.15 mid1-DES #7.16 mid1-Mode(ecb+cbc+ctr) #7.17 CBC and CTR -mid1 #7.18 encryption mode encrypts-mid1 #7.19 RSA signature -mid2 #7.20 RSA +ايجاد mod #7.21 Diffie-Hellmanex #7.22 ElGamalCryptographyex #7.23 RSA - تمرين #7.24 decide whether the system maintains #7.25 secrecyorauthentication #7.26 ElGamal Cryptography #7.27 RSA