Development of a novel cryptography tool for personal communication

Many excellent techniques have been developed for protecting information confidentiality and integrity over the centuries. Unfortunately, many of these techniques are difficult or expensive for protecting personal communication. In this paper, we introduce a novel light weight cryptographic tool we developed for enhancing the security of personal communication. The new technique encrypts information with equal character frequencies and with a totally new character set. By building the cipher text with even character distribution, the technique protects the encrypted information against a common character frequency analysis. The self-created character set is not available anywhere else for obfuscating information in a unique way. The tool we developed can build a completely new character set within only a few minutes and vast amounts of data to obfuscate messages can also be generated rather quickly. Since the new design of the cryptographic technique and the character set are unknown to attackers, the technique provides a reasonable security enhancement for personal communication. The case study discussed in this paper has shown the effectiveness and efficiency of the technique.