The evil bit is a fictional IPv4 packet header field proposed in RFC 3514, a humorous April Fools' Day RFC from 2003 authored by Steve Bellovin. The RFC recommended that the last remaining unused bit in the IPv4 packet header be used to indicate whether a packet had been sent with malicious intent, thus making computer security engineering an easy problem — simply ignore any messages with the evil bit set.
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Famous quotes containing the words evil and/or bit:
“Wisdom we know is the knowledge of good and evil not the strength to choose between the two.”
—John Cheever (1912–1982)
“The public, with its mob yearning to be instructed, edified and pulled by the nose, demands certainties; it must be told definitely and a bit raucously that this is true and that is false. But there are no certainties.”
—H.L. (Henry Lewis)