Secure Mobile System Using NTRU Encrypt
The first IM system created by Mirabilis (a pioneer of online chatting that revolutionized communication over the Internet), dubbed ICQ (I seek you), in 1996 which achieved widespread adoption quickly among netizens. Although other Instant Messaging (IM) systems have surpassed ICQ in popularity, the medium of IM remains a popular form of technologies communication. The major drawback has been the vulnerabilities associated with IM technology. These vulnerabilities have created so many security issues. A hybrid encryption policy using the AES, SHA-1, and RSA algorithms provided by Bouncy Castle encryption library serves as a means of achieving security in IM systems.