Weaknesses
The Fletcher checksum cannot distinguish between blocks of all 0 bits and blocks of all 1 bits. For example, if a 16-bit block in the data word changes from 0x0000 to 0xFFFF, the Fletcher-32 checksum remains the same. This also means a sequence of all 00 bytes has the same checksum as a sequence (of the same size) of all FF bytes.
Read more about this topic: Fletcher's Checksum
Famous quotes containing the word weaknesses:
“A pretty little collection of weaknesses and a terror of spiders are our indispensable stock-in-trade with the men.”
—Colette [Sidonie Gabrielle Colette] (1873–1954)
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“One of the baffling things about life is that the purposes of institutions may be ideal, while their administration, dependent upon the faults and weaknesses of human beings, may be bad.”
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