Impossible differential and zero-correlation linear cryptanalysis are two of the most powerful
cryptanalysis methods in the field of symmetric key cryptography. There are several …

The rectangle attack and the related-key attack on block ciphers are well-known to be very
powerful. In this paper we combine the rectangle attack with the related-key attack. Using …

SHA-256 is a cryptographic hash function which was proposed in 2000 as a new generation
of SHA functions and was adopted as FIPS standard in 2002. In this paper we will consider a …

Cryptographic hash functions are an important tool in cryptography to achieve certain
security goals such as authenticity, digital signatures, digital time stamping, and entity …

The block cipher is one of the most important primitives in modern cryptography, information
and network security; one of the primary purposes of such ciphers is to provide …

Based on the compression function of the hash function standard SHA-256, SHACAL-2 is a
64-round block cipher with a 256-bit block size and a variable length key of up to 512 bits. In …

By considering a new metric, we generalize cryptographic properties of Boolean functions
such as resiliency and propagation characteristics. These new definitions result in a better …

Abstract SHACAL-2 is a 256-bit block cipher with up to 512 bits of key length based on the
hash function SHA-2. It was submitted to the NESSIE project and was recommended as one …

SHACAL-2 is a 64-round block cipher with a 256-bit block size and a variable length key of
up to 512 bits. It is a NESSIE selected block cipher algorithm. In this paper, we observe that …

Abstract SHACAL-2 is a 256-bit block cipher with various key sizes based on the hash
function SHA-2. Recently, it was recommended as one of the NESSIE selections. This paper …