Lars Ramkilde Knudsen
Lars Ramkilde Knudsen ( born 21 February 1962 ) is a Danish researcher in cryptography , particularly interested in the design and analysis of block ciphers , hash functions and message authentication codes ( MACs ) . 
<triplet> Lars Ramkilde Knudsen <subj> 21 February 1962 <obj> date of birth <subj> Danish <obj> country of citizenship <triplet> hash functions <subj> cryptography <obj> use