Hans Dobbertin (cryptologist)
Hans Dobbertin (born April 17, 1952 in Herkensen ; † February 2, 2006 in Bochum ) was a German mathematician and cryptologist. He held the chair for cryptology and information security at the Ruhr University in Bochum .
Life
His parents were the teacher Hans Dobbertin and Anneliese, geb. Camp. From 1959 he attended the Eldagsen elementary school, 1963–1969 the Tellkampfschule Hanover and 1969–1973 a modern-language grammar school.
Dobbertin studied mathematics and received his doctorate in 1983 with the thesis Refinement Monoids, Vaught Monoids and Boolean Algebras at the Department of Mathematics at the University of Hanover . He completed his habilitation in 1986 in Hanover and moved to the Federal Office for Information Security (BSI) as an associate professor . At the BSI, Dobbertin was involved in the analysis of hash functions and in the 1990s he developed new methods to break hash algorithms from the MD4 family. He showed that the successor MD5, which is considered to be secure, also contains vulnerabilities. With this work he became internationally known as a cryptologist. In 2004, this statement was confirmed by Chinese researchers. Furthermore, Dobbertin was involved in the development of the hash algorithm RIPEMD-160 .
After a short stay at the University of Klagenfurt (Austria), Hans Dobbertin was appointed professor for cryptology and information security at the Ruhr University Bochum in 2001. In 2003 he opened the Horst Görtz Institute for IT Security (HGI) at the Ruhr University as founding director .
Other focal points of Dobbertin's teaching and research work were block ciphers , stream ciphers , asymmetric procedures and elliptic curves .
Hans Dobbertin died of complications from cancer .
Fonts
- with Vincent Rijmen, Aleksandra Sowa (eds.): Advanced Encryption Standard. 4th International Conference AES, Bonn, 10. – 12. May 2004. Springer, Berlin 2005, ISBN 3-540-26557-0 .
literature
- Klaus Schmeh : Code breakers versus code makers. W3L, Bochum 2008, ISBN 9783937137896 . (Contains a chapter on Hans Dobbertin.)
Individual evidence
- ↑ Vita in Diss. Refinement monoids, ... ; P. 59
Web links
- Literature by and about Hans Dobbertin in the catalog of the German National Library
- RUB mourns the loss of Prof. Hans Dobbertin , press release from February 7, 2006
| personal data | |
|---|---|
| SURNAME | Dobbertin, Hans |
| BRIEF DESCRIPTION | German mathematician and cryptologist |
| DATE OF BIRTH | April 17, 1952 |
| PLACE OF BIRTH | Herkensen |
| DATE OF DEATH | February 2, 2006 |
| Place of death | Bochum |