In cryptography, secret sharing is a method of guarding information by distributing pieces of it to a number of people or entities. Each participant has a share of the secret, but no share is useful on its own. Some shares may even be decoys that are not useful at all. In certain scenarios, multiple participants may collaborate to try to reconstruct the original secret. How can they be certain that no one is misrepresenting himself just to gain access to more shares?
Back in the day
While investigating the Watergate scandal, special prosecutor Archibald Cox subpoenaed audiotapes of conversations implicating US President Richard Nixon in a cover-up of a burglary of the Democratic headquarters at the Watergate Hotel in Washington, DC. Nixon refused to produce the tapes and ordered the US attorney general and his deputy to fire Cox. On the same Saturday, both men resigned in protest, and public outcry eventually forced Nixon to surrender the tapes. What happened to Cox?
Born on a day like today
A woman of great beauty and considerable scandal, Pauline Bonaparte was Napoleon's favorite sister. She accompanied her first husband on an expedition to subdue Haiti, but he failed and died of yellow fever. Pauline then married a Roman nobleman, but she soon tired of him and returned to Paris, where her scandalous conduct earned her a reputation. Pauline was the only one of Napoleon's siblings to come to his aid when he was exiled to Elba, despite having incurred his disfavor for what?