Chapter 7 Cryptographic Systems

Chapter 7 Cryptographic Systems

1. Cryptographic Services

   • Securing Comunications
     • Authentication
     • DATA
       • Integrity
       • Confidentiality.
   • Cryptography
     • Cipher
       • Text
       • Transpotition
       • Substitution
   • Cryptoanalysis
     • Methods for Cracking Code
       • Ciphertext method
       • Brute-force method
       • Known-Plaintext method
   • Cryptology
     • Critography
     • Criptoanalysis

2. Integrity and Authenticity

   • Cryptographic Hashes
     • Cryptographic Hash Function
   • Integrity MD5, SHA-1, and SHA-2
     • Message Digest 5 Algorithm
     • Secure Hash Algorithm
   • Authenticity with HMAC
     • HMAC or KHMAC
       • Keyed MD5 (HMAC-MD5)
       • Keyed SHA-1 (HMAC-SHA-1
   • Key Management
     • Types of Cryptographic Keys
       • Symmetric keys
       • Asymmetric keys
       • Digital signatures
       • Hash keys

3. Confidentiality

   • Encryption
     • Symmetric Encryption
   • Data Encryption Standard
     • Data Encryption Standard (DES)
     • AES
     • 3DES
   • Alternate Encryption Algorithms
     • RC2
     • RC4
   • Diffie-Hellman Key Exchange

4. Public Key Cryptography

   • Public Key Infrastructure
     • PKI Framework
   • Digital Signatures
     • Digital Certificates
     • Digital Signature Algorithms
   • Symmetric Versus Asymmetric Encryption
     • Public Key + Private Key = Confidentiality
     • Private Key + Public Key = Authentication
     • Types of Asymmetric Algorithms
       • DH
       • RSA

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