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Traditionally SSL/TLS protocol is used to provide secure and trusted communication by implementing public key cryptographic algorithms such as RSA, DSA and DH. These algorithms have several performance and scalability issues for real time (audio, video, instant messaging) streaming and messaging. Against large sized RSA keys, ECC based public key cryptography offers equivalent security with smaller key length, entailing high performance, efficiency and low bandwidth requirement. Therefore, in this paper we provide an enterprise level distributed architecture based on PKI, ECC based digital certificates and LDAP based single sign-on for HTTPS (secure web), S/MIME (signed messages), and RTMPS (Secure Real time audio, video conferencing and chat streaming) protocol over standard SSL/TLS.