Mobile P2P Secure Communication Scheme Based On NTRU

The rapid development of mobile devices brings convenience to people’s lives but also greatly increases the risk of disclosure of personal privacy, the security of data storage and communication is greatly concerned by the public. As one of the most commonly used communication technology in wireless network, Using P2P technology to transfer data efficiency has been widely recognized.But how to ensure the security of data transmission while we are enjoying the high efficiency and convenient brought by P2P technology and try to prevent sensitive data from leakage still needs further research.This paper analyzes and studies the NTRU public-key cryptosystem,and implements NTRU encryption algorithm, NTRU-KE algorithm and NTRUSign algorithm on a mobile platform; On this basis, we propose a set of mobile P2P secure communication scheme based on NTRU cryptosystem. The set of scheme is by NTRU-TLS scheme and NTRU-PGP scheme components, NTRU-TLS scheme puts NTRU and SSL/TLS protocol integration,and designs a two-way mutual authentication mechanism for mobile terminals peer, it uses NTRUSign algorithm to generate WTLS digital certificates and uses NTRU-KE algorithm to interactive key, so this further ensures the security of message transmission, The scheme is mainly designed for business applications and other P2P networks safer; NTRU-PGP scheme puts the PGP technology into mobile P2P Security, It uses AES symmetric encryption algorithm to encrypt the information you want to transfer, and then uses NTRU encryption algorithm to encrypt the AES encryption key, and uses NTRUSign signature to sign the data, the scheme ensures the safety of the transfer process, the integrity of the data and effectiveness of the process, The scheme is suitable for social applications and other non-secure P2P network.This paper builds a mobile P2P secure communication experimental system on the JXTA platform, and puts the secure communication scheme to implementation and verification. The test results show, the NTRU-TLS scheme has the secure and portable advantages brought by SSL/TLS protocol, and high security features brought by NTRU encryption scheme. This scheme improves the security, confidentiality and integrity of data transmission in P2P network,and guarantees the efficiency of communication between the various nodes; The NTRU-PGP scheme combines with the PGP technology and NTRU key system, strengthens the public key authentication and effectively improves the security of the system. Features of the set of the scheme:It can be effective against quantum attacks, and has high security strength(128-bit security strength, equivalent RSA3072) and practical and efficient, and two complementary schemes complement each other, which ensures the safety of mobile P2P network communication problems.