Home page of Ivan Damgård
I am a
professor at the computer
science department of Aarhus University.
will find links, most of which are
related to my main research interests: cryptography, data security, discrete math, quantum information, algorithms and complexity.
Finally there are links connected to my main interest aside from work: music, and folk music in particular.
My H-index: 45, computed using Google Scholar June 2012.
New Book on
With Ronald Cramer and Jesper Buus Nielsen, I am writing a new book on Information Theoretically Secure
Multiparty Computation. The book is not finished, but a draft is available. We will be very happy to get
information about typos, mistakes, complaints or any other comment you may have before the book is officially
released. Happy reading!
The Provable Security Controversy
In 2006-2007, a controversy started about what proofs and security reductions in
cryptography actually mean and whether they are useful, a debate initiated (among others) by
Koblitz and Menezes. Unfortunately, a lot of this important debate has been obscured by
misunderstandings and misconceptions. In the hope of helping to clarify some of these issues,
I post here my position paper on the subject, A "Proof-Reading" of Some Issues in
Cryptography, which appeared in ICALP 2007.
The version here is a slightly updated version of what appears in the proceedings.
Get the PFD-file.
At the computer science department, I teach the following courses:
I am currently involved with the following major research projects:
In day-to-day work, I am head of the Cryptography Group of the computer science department
I am a co-founder and owner of Cryptomathic, a local software and consulting company in data security and cryptography
I am also a co-founder of Partisia, a company doing market design and implementation, based on secure multiparty
I play primarily fiddle and guitar, mostly Danish and Nordic folk music. I am or have been involved in 3 bands:
Jydsk på Næsen
A 4-piece traditionally oriented band with 2 fiddles, accordion and double bass. Instrumental traditional and
self-composed music for dancing and concerts. We released 1 LP, 4 CD’s and several tapes and celebrated our
30 year anniversary in 2009. The home page has more info, pictures and sound clips.
A 4-piece band with fiddle, accordion, double bass, guitar, mandolin etc. and vocals.
Traditional and not so traditional folk for dancing, concerts and parties. We released one CD “Zinklar”.
Some clips from a live recording:
Reels in A (traditional Danish tunes)
Øster og Vester (“East and West”, traditional Danish song)
Brudestykker (Traditional Bridal dances from the island of Fanø)
A 4-piece band with fiddle/guitar, clarinet, accordion and double bass. Not active anymore. Released
one CD, “Waltz for a Princess”.
Some clips from that CD:
Listeren, schottish by Julie Heebøll
Waltz for a princess, by Julie Heebøll
Madam Blå, hopsa by Ivan Damgård