The go-to dictionary (and encyclopedia) for crypto novices and experts alike. It covers technical terms found in modern software analysis, such as 'block cipher,' while providing context for historical references like the 'crypto wars,' sharing amusing anecdotes (ever hear of the 'Hasty Pudding Cipher'?), and describing major conferences in the field, including Eurocrypt and Real World Crypto. Includes descriptions of the field's most innovative techniques, like threshold cryptography, as well as those developed in the context of blockchain applications, in a broadly approachable way.