1) The probability of someone producing the a different download with the same checksum is 1 / 2^80 2) Then why trust the truecrypt guys? 3) Then why trust th

1) The probability of someone producing the a different download with the same checksum is 1 / 2^80 2) Then why trust the truecrypt guys? 3) Then why trust the truecrypt guys? The only way to achieve the level of security you're looking for is to download the truecrypt source code, audit it and then compile it and use that.