Hello,

I hope this is a good place to ask this question. I do security research on some bitcoin wallets. Among them multibit classic and HD. I was wondering why MD5 was used for key stretching in classic. Also, why was/is a fixed number of rounds used? Classic uses 1024 rounds of MD5. HD uses Scrypt with an N value of 16384 and some more bitcoin specific things.

"I just felt like it" is a perfectly fine answer.