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Visual cryptography is a cryptographic technique which allows visual information (pictures, text, etc.) to be encrypted in such a way that the decrypted information appears as a visual image. One of the best-known techniques has been credited to Moni Naor and Adi Shamir , who developed it in 1994. [ 1 ]
Secret sharing was invented independently by Adi Shamir [1] and George Blakley [2] in 1979. A demonstration of visual cryptography: when two same-sized binary images of apparently random black-and-white pixels are superimposed, the Wikipedia logo appears
Adi Shamir (Hebrew: עדי שמיר; born July 6, 1952) is an Israeli cryptographer and inventor. He is a co-inventor of the Rivest–Shamir–Adleman (RSA) algorithm (along with Ron Rivest and Len Adleman), a co-inventor of the Feige–Fiat–Shamir identification scheme (along with Uriel Feige and Amos Fiat), one of the inventors of differential cryptanalysis and has made numerous ...
Semiconductor giant Nvidia slumped 2.1%. Microsoft declined 1.7%. Each has a market value above $3 trillion, giving the companies outsized sway on the S&P 500 and the Nasdaq.
U.S. stocks closed broadly higher Monday as gains by some Big Tech companies helped offset a skid in oil-and-gas stocks after the price of crude had its biggest drop in more than a year. The main ...
The S&P 500 slipped 0.2%, and the Dow Jones Industrial Average dipped 57 points, or 0.1%, after it likewise set an all-time high the day before. The Nasdaq composite edged down by 0.1%. The Nasdaq ...
There are several types of secret sharing schemes. The most basic types are the so-called threshold schemes, where only the cardinality of the set of shares matters. In other words, given a secret S, and n shares, any set of t shares is a set with the smallest cardinality from which the secret can be recovered, in the sense that any set of t − 1 shares is not enough to give S.
And better still, its shares seem attractively valued, with a recent forward-looking price-to-earnings (P/E) ratio of 8.7, well below the five-year average of 10.7. 2. Medtronic