kaksha.dev

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3 Error detection Schemes

CRC (Cyclic Redundancy Check)

• More expensive than checksum
• Protect against any 2 bit error, any burst less than generative polynomial size, any odd number of error
• Good fit for Transmission and Internet layer

  Checksum

• Fast cheap to compute
• Not very robust - protect against only single bit error
• Goot fit for ethernet

  MAC (Message authentication Code)

• Robust to malicious modification but not for error
• Uses Cryptography - example : HTTPS protocol