Nginx SSL reencryption

stream {
    server {
        listen 0.0.0.0:1000 ssl;
        ssl_certificate cert.pem;
        ssl_certificate_key key.pem;
        proxy_ssl off;
        proxy_ssl_verify on;
        proxy_ssl_trusted_certificate backend_cert.pem;
        proxy_pass backend:1000;
    }
}