This books constitutes the thoroughly refereed papers and poster
abstracts from the FC 2014 Workshops, the First Workshop on Bitcoin
Research, BITCOIN 2014, and the Second Workshop on Applied Homomorphic
Cryptography and Encrypted Computing, WAHC 2014, co-located with the
18th International Conference on Financial Cryptography and Data
Security, held in Christ Church, Barbados, on March 7, 2014. The 15 full
papers and 3 poster abstracts presented were carefully reviewed and
selected from 30 submissions. They are grouped in topical sections on
Bitcoin transactions, policy and legal issues; Bitcoin security;
improving digital currencies; posters, and WAHC papers.