Abstract. The security of iterated hash functions relies on the properties of underlying compression functions. We study highly efficient compression functions based on block ciphe...
Abstract: Message Authentication Code (MAC) algorithms can provide cryptographically secure authentication services. One of the most popular algorithms in commercial
We propose a new real-time authentication scheme for memory. As in previous proposals the scheme uses a Merkle tree to guarantee dynamic protection of memory. We use the universal...
Abstract. It is almost a folklore-knowledge that hash-based time-stamping schemes are secure if the underlying hash function is collisionresistant but still no rigorous proofs have...
Many applications using cryptographic hash functions do not require collision resistance, but some kind of preimage resistance. That's also the reason why the widely used SHA-...