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:
“Once we know our weaknesses they cease to do us any harm.”
—G.C. (Georg Christoph)
“Delicious essence! how refreshing art thou to nature! how strongly are all its powers and all its weaknesses on thy side! how sweetly dost thou mix with the blood, and help it through the most difficult and tortuous passages to the heart!”
—Laurence Sterne (1713–1768)
“Men are much more unwilling to have their weaknesses and their imperfections known, than their crimes; and, if you hint to a man that you think him silly, ignorant or even ill-bred or awkward, he will hate you more and longer than it you tell him plainly that you think him a rogue.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)