Abstract: Advanced Encryption Standard is the most acceptable and widely used symmetric algorithm. However, cyber attacks and security breaches are becoming very common day by day. Cyber attacks hit ...

Encryption algorithms play an essential part to secure information. This paper demonstrates analysis of well-known block cipher CAST-256 and its modified version using modified S-Box and key generator ...

a public key for encryption and a private key for decryption. Bitcoin doesn’t use RSA, but relies on elliptic curve cryptography (ECC). However, ECC can also be broken by Shor’s algorithm, a ...