Abstrakt: |
A strong substitution-box is main ingredient in cryptography. Many encryption schemes have been proposed since 1970's such as DES, AES and IDEA. In this paper we construct S-boxes using a new technique, our proposed algorithm relies on modified Pascal's triangle and elliptic curve. The substitution-boxes are analyzed by non-linearity, strict avalanche criterion, bit independence criterion, differential approximation probability and linear approximation probability. Comparison is also made with some existing S-boxes such as AES, APA, Gray, S 8 AES, Skipjack, Xyi and residue prime. We use our proposed substitution-boxes for image encryption and noise removal. [ABSTRACT FROM AUTHOR] |