Secret Key Cryptography

• Also known as Symmetric Key Cryptography or conventional cryptography.
• The following is relevant
  • Plaintext
  • Encryption Algorithm
  • Secret Key
  • Decryption Algorithm
  • Cipher-text
• Requirements
  • Strong encryption algorithm (attackers may have access to the algorithm and a few cipher-text-plaintext pairs)
  • Sender and receiver must have access to the secret key.