Advance Cryptography Using Color Substitution

Abstract

The emerging threats to information security are increasing at an alarming rate. The most influential and universal approach to counter such threats is encryption. Traditional encryption techniques use substitution and transposition. Substitution techniques map plaintext into ciphertext. In all traditional substitution techniques, characters, numbers and special symbols are substituted with other characters, numbers and special symbols. In this paper, an innovative cryptographic substitution method is proposed to generate a stronger cipher than the existing substitution algorithms. This method emphasizes on the substitution of characters, numbers and special symbols with color blocks. This algorithm of substitution is based on Play Color Cipher. The cryptanalysis done on this will prove that the cipher is strong.