Ivan Damgård
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Ivan Damgård is a professor at the University of Aarhus in Denmark. He researches and teaches cryptography and is known among other things for the Merkle-Damgård construction used in most modern cryptographic hash functions such as SHA-1 and MD5. He discovered the structure independently of Ralph Merkle and published it in 1989. Ivan Damgård is also one of the founders of the Cryptomathic company.
