A New Design of the Hash Functions With All-or-Nothing Property

All-or-nothing property is a new encryption mode proposed by Rivest and has the property that one must decrypt the entire ciphertext to determine any plaintext block. In this paper, we propose hash functions with all-or-nothing property. The proposed schemes use the existing hash functions without changing their structures, and they are secure against known attacks. Moreover, the proposed methods can be easily extended to the MAC (Message Authentication Code) for providing message confidentiality as well as authentication.