Peer not authenticated exception while integrating AEM 6.0 with Amazon S3

Hi all,
While integrating AEM6.0 with  Amazon S3,I am getting "Peer not authenticated"exception as below:

"com.amazonaws.http.AmazonHttpClient Unable to execute HTTP request: peer not authenticated
javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated
    at sun.security.ssl.SSLSessionImpl.getPeerCertificates(Unknown Source)"

Please help me to resolve this issue.

Thanks in advance

LM