Sadly, but unsurprisingly, searching for "Crypto 2.0" does not yield information about a shift in cryptography. What time period was this around when this phrase was being used? Where could I find more info on it? What was the shift primarily about?
The big shift I perceived from him was from generic composition of authenticators and ciphers and such, and long sprawling discussions about E-t-M and M-t-E and "the Horton Principle" and stuff, to the AEAD ciphers pretty much everybody uses now.