user1878: Edit: In this question I'm looking at storage advantages, and network bandwidth savings.  
Given that the TxID and BlockID uses SHA256 to uniquely identify a transaction (and block) is there any reason that RIPEMD shouldn't be used in a brand new/different alt-coin?

user5292: The malleability problem is not with the hashing function, but with what is being hashed (or not). The hashed data is malleable, not the hash directly.

1878: <p>Edit: In this question I'm looking at storage advantages, and network bandwidth savings.  </p>

<p>Given that the TxID and BlockID uses SHA256 to uniquely identify a transaction (and block) is there any reason that RIPEMD shouldn't be used in a brand new/different alt-coin?</p>
 5292: <p>The malleability problem is not with the hashing function, but with what is being hashed (or not). The hashed data is malleable, not the hash directly.</p>
