A symmetric block cipher employing a substitution–permutation duo is an effective technique
for the provision of information security. For substitution, modern block ciphers use one or …

For decades, the security and privacy of data are among the major challenges faced by
service providers dealing with public data. To cope with these challenges, most of the …

Encryption provides security in cases such as storing confidential information or transmitting
it over a network. Today, block cipher algorithms are generally used for encryption …

Increased demand of multimedia data over heterogeneous networks has led to the
requirement for increased compression and suitable security. Both of these demands …

New era ciphers employ substitution boxes (S-boxes) which assist in the provision of
security for the plaintext in the encryption phase and transforming the ciphertext on the …

The protection of sensitive data from illegitimate users is one of the main challenges in
today's technological era. To handle prevailing security-related problems and challenges …

Selective encryption techniques are usually used with resource limited communication
infrastructure and devices like wireless networks and mobile devices, to reduce …

Data protection is regarded as one of the biggest issues facing companies that have been
using public data for a long time. Numerous encryption techniques have been used to …

In most modern symmetric ciphers, substitution boxes are non-linear core components that
provide robust security and confusion. The construction of active S-boxes has been hot …

The substitution box (S-box) is an essential component in cryptography. The desirable
cryptographic properties of the S-box are bijective, non-linearity, strict avalanche, bit …