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Data Integrity and Hash Function
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Integrity: It indicates that the received message is same message that was sent
Message Authentication Code (MAC): A common secret code and message are combined to create MAC
Hash Function: It creates a fixed size message digest
Hash function calculates a checksum
Both the checksum and the message are transmitted to the receiver
The receiver uses the same function to calculate a checksum
Examples of hash function
MD5, SHA-1, SHA-256,
and SHA-512
#hash
Message Authentication Code (MAC): A common secret code and message are combined to create MAC
Hash Function: It creates a fixed size message digest
Hash function calculates a checksum
Both the checksum and the message are transmitted to the receiver
The receiver uses the same function to calculate a checksum
Examples of hash function
MD5, SHA-1, SHA-256,
and SHA-512
#hash
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