A network stream needs to be encrypted. Sara, the network administrator, has selected a cipher which will encrypt 8 bits at a time before sending the data across the network. Which of the following has Sara selected?

  • CRC
  • Block cipher
  • Hashing algorithm
  • Zero cipher

CompTIA Security+ SY0-401
  • Network Security
  • Compliance and Operational Security
  • Threats and Vulnerabilities
  • Application, Data and Host Security
  • Access Control and Identity Management
  • Cryptography
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