Moti Yung

Mordechai M. (Moti) Yung is an Israeli-American cryptographer and computer scientist currently employed at Snapchat (previously he worked at Google until early 2016).

Yung earned his Ph.D. from Columbia University in 1988 under the supervision of Zvi Galil. In the past, he worked at the IBM Thomas J. Watson Research Center, was a vice president and chief scientist at CertCo and was director of Advanced Authentication Research at RSA Laboratories. He has also held adjunct and visiting faculty appointments at Columbia through which he advised several Ph.D. students including Gödel Prize winner Matthew K. Franklin and Jonathan Katz.

In a 1996 publication with Adam L. Young, Yung coined the term cryptovirology to denote the use of cryptography by computer viruses and other malware and discovered the secure attack (from the attacker's perspective) for kidnapping data known as ransomware. Young and Yung authored the book Malicious Cryptography: Exposing Cryptovirology (John Wiley & Sons, 2004). (See also ) In 1996 Yung and Young introduced the notion of kleptography to show how to use cryptography to attack host cryptosystems where the malicious embedded cryptologic resists reverse-engineering. The first such attack against a real system is believed to have been mounted by NIST against an American Federal Information Processing Standard detailing the Dual_EC_DRBG (essentially exploiting the repeated discrete logarithm based "kleptogram" introduced in 1997 by Young and Yung).

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