AES vs Blowfish for file encryption

Question

I want to encrypt a binary file. My goal is that to prevent anyone to read the file who doesn\'t have the password.

Which is the better solution, AES or Blowfish with th

Answer 1

The algorithm choice probably doesn't matter that much. I'd use AES since it's been better researched. What's much more important is choosing the right operation mode and key derivation function.

You might want to take a look at the TrueCrypt format specification for inspiration if you want fast random access. If you don't need random access than XTS isn't the optimal mode, since it has weaknesses other modes don't. And you might want to add some kind of integrity check(or message authentication code) too.