Message Integrity Code
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In wireless communications the term Message Integrity Code or MIC is used to refer to a cryptographic checksum used in the handshaking process.
This is equivalent to what is often referred to as a MAC or Message Authentication Code. The acronym MAC also stands for Media Access Control in networking.
The MIC is created by the sequential XOR of each data block with the subsequent block with the encryption of its resultant. The process is continued until all data blocks are encrypted and consequently the MIC has been produced.
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