# Gavin Andresen
# 2010-07-15 01:05:21
# https://bitcointalk.org/index.php?topic=360.msg3024#msg3024

@s{quotedtext}
@s{quotedtext}
 @p{brk}
If I understand correctly, you've got two chances to find a collision instead of one. @p{par}

So this decreases the security of SHA256 by a factor of 2... which is just Not a Big Deal.  Bitcoin is using, essentially SHA255 instead of SHA256.  It'll still take longer than forever to find a collision...