Does the security of Skein as a hash imply the security of Threefish as a block cipher?
The Skein hash proposed for SHA-3 boasts some impressive speed results, which I suspect would be applicable for the Threefish block cipher at its heart - but, if Skein is approved for SHA-3, would this imply that Threefish is considered secure as well? That is, would any vulnerability in Threefish imply a vulnerability in SHA-3? (and thu...