Aleksander Gieysztor

Aleksander Gieysztor (17 July 1916, Moscow, Russian Empire – 9 February 1999, Warsaw, Poland) was a Polish medievalist historian.

Aleksander Gieysztor, 1995

Life

Aleksander Gieysztor was born in Moscow to a Polish family. He lived in Warsaw since the age of five. He graduated in history from Warsaw University in 1937.

He was married to Irena Gieysztorowa, a fellow historian.

The Aleksander Gieysztor Prize of the Kronenberg Foundation and the Aleksander Gieysztor Academy of Humanities are named after him.

Awards

Books
  • Historia Polski (co-author; 1947)
  • Ze studiów nad genezą wypraw krzyżowych (1948)
  • Zarys nauk pomocniczych historii (1948), a textbook used by a lot of generations of Polish students
  • Zarys dziejów pisma łacińskiego (1972)
  • Zamek Królewski w Warszawie (1973)
  • Mitologia Słowian (1982) (wyd. Wydawnictwa Artystyczne i Filmowe, 1982 i 1986, w serii * Mitologie Świata, ISBN 83-221-0152-X).
  • Dzieje Mazowsza do 1526 roku (wraz z Henrykiem Samsonowiczem)
  • La Pologne et l’Europe au Moyen Age. Warszawa, P.W.N. Conférence au Centre Scientifique Parisien de l’Académie Polonaise des Sciences le 10 décembre 1962.
  • Società e cultura nell’alto Medioevo Polacco. Ossolineum 1965. Conférence à l’Académie Polonaise des Sciences à Rome le 5 novembre 1963.
gollark: If you do *not* use that, then people can store a bunch of precalculated mappings from hashes to original passwords (rainbow tables, yes) and work out the original.
gollark: That's why salts are recommended (they're a bit of extra data you store along with the password and feed to the hash function when hashing it in the first place and comparing passwords with the hash).
gollark: The main attack on this is that you can, sometimes even using dedicated ASICs/FPGAs, run hashes *very fast* on a lot of possibilities and figure out what the original password was.
gollark: Yep!
gollark: The point is that for one hashed input you always have the same output, so you can compare values without storing what they originally were.

See also
  • List of Poles

References
  1. M.P. 1994 nr 35 poz. 290, A 1994 President's decree on granting the Order to Geysztor, "for extraordinary actievements in educational and social activities
  2. M.P. 1993 nr 17 poz. 148, A 1993 President's decree on granting the Order to Geysztor, for exceptional merit for Polish science and culture
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