Bugtraq: Re: SHA-1 broken

[Darren Reed <avalon () caligula anu edu au>]

In some mail from dullien () gmx de, sie said:
> Hey all,
>
> > We abandon the requirement of collision resistance. This is a strange 
> > requirement, and is not supported by experience. Collision resistance 
> we might think of changing the requirement of collision resistance
> to "collision resistance in input data that is valid ASCII text". The
> attacks on MD5 used the weak avalanche of the highest-order bit
> in 32-bit words for producing the collision, basically precluding the
> possibility of generating colliding ASCII text.
And what about the case for (uncompressed) binary images ?

Darren