Have any cryptography experts vetted the bitcoin source code? Theoretically, bitcoin's open source nature makes it more resistant to bugs and exploits. However, due to the specialized nature of the code, even many programmers don't fully understand the cryptography pieces. Have any well-regarded cryptography experts done an analysis of the code and published their thoughts anywhere?
"It looks good to me" tends to make for a pretty boring paper.

Security expert Dan Kaminsky has given talks and written articles about the Bitcoin system. His two main points are that it cannot scale to the number of transactions a payment processing system needs and that it is not as anonymous as many people think.

He also wrote, "As a note, I have a tremendous amount of respect for BitCoin; I count it in the top five most interesting security projects of the decade.  Entire classes of bugs are missing.  But it's just not an anonymous solution, and the devs will say as much."