new file mode 100644
--- /dev/null
+++ b/stream_proxy_ssl_certificate.t
@@ -0,0 +1,167 @@
+#!/usr/bin/perl
+
+# (C) Sergey Kandaurov
+# (C) Nginx, Inc.
+
+# Tests for stream proxy module with proxy certificate to ssl backend.
+# The proxy_ssl_certificate and proxy_ssl_password_file directives.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+my $t = Test::Nginx->new()->has(qw/stream stream_ssl http http_ssl/)
+	->has_daemon('openssl')->plan(5);
+
+$t->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+stream {
+    proxy_ssl on;
+    proxy_ssl_session_reuse off;
+
+    server {
+        listen      127.0.0.1:8083;
+        proxy_pass  127.0.0.1:8081;
+
+        proxy_ssl_certificate 1.example.com.crt;
+        proxy_ssl_certificate_key 1.example.com.key;
+    }
+
+    server {
+        listen      127.0.0.1:8084;
+        proxy_pass  127.0.0.1:8081;
+
+        proxy_ssl_certificate 2.example.com.crt;
+        proxy_ssl_certificate_key 2.example.com.key;
+    }
+
+    server {
+        listen      127.0.0.1:8085;
+        proxy_pass  127.0.0.1:8082;
+
+        proxy_ssl_certificate 3.example.com.crt;
+        proxy_ssl_certificate_key 3.example.com.key;
+        proxy_ssl_password_file password;
+    }
+}
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    server {
+        listen       127.0.0.1:8081 ssl;
+        server_name  localhost;
+
+        ssl_certificate 2.example.com.crt;
+        ssl_certificate_key 2.example.com.key;
+
+        ssl_verify_client optional_no_ca;
+        ssl_trusted_certificate 1.example.com.crt;
+
+        location / {
+            add_header X-Verify $ssl_client_verify;
+            add_header X-Name   $ssl_client_s_dn;
+        }
+    }
+
+    server {
+        listen       127.0.0.1:8082 ssl;
+        server_name  localhost;
+
+        ssl_certificate 1.example.com.crt;
+        ssl_certificate_key 1.example.com.key;
+
+        ssl_verify_client optional_no_ca;
+        ssl_trusted_certificate 3.example.com.crt;
+
+        location / {
+            add_header X-Verify $ssl_client_verify;
+        }
+    }
+}
+
+EOF
+
+$t->write_file('openssl.conf', <<EOF);
+[ req ]
+default_bits = 1024
+encrypt_key = no
+distinguished_name = req_distinguished_name
+[ req_distinguished_name ]
+EOF
+
+my $d = $t->testdir();
+
+foreach my $name ('1.example.com', '2.example.com') {
+	system('openssl req -x509 -new '
+		. "-config '$d/openssl.conf' -subj '/CN=$name/' "
+		. "-out '$d/$name.crt' -keyout '$d/$name.key' "
+		. ">>$d/openssl.out 2>&1") == 0
+		or die "Can't create certificate for $name: $!\n";
+}
+
+foreach my $name ('3.example.com') {
+	system("openssl genrsa -out $d/$name.key -passout pass:$name "
+		. "-aes128 2048 >>$d/openssl.out 2>&1") == 0
+		or die "Can't create private key: $!\n";
+	system('openssl req -x509 -new '
+		. "-config '$d/openssl.conf' -subj '/CN=$name/' "
+		. "-out '$d/$name.crt' "
+		. "-key '$d/$name.key' -passin pass:$name"
+		. ">>$d/openssl.out 2>&1") == 0
+		or die "Can't create certificate for $name: $!\n";
+}
+
+$t->write_file('password', '3.example.com');
+$t->write_file('index.html', '');
+
+$t->run();
+
+###############################################################################
+
+like(http_get('/', socket => getconn('127.0.0.1:8083')),
+	qr/X-Verify: SUCCESS/ms, 'verify certificate');
+like(http_get('/', socket => getconn('127.0.0.1:8084')),
+	qr/X-Verify: FAILED/ms, 'fail certificate');
+like(http_get('/', socket => getconn('127.0.0.1:8085')),
+	qr/X-Verify: SUCCESS/ms, 'with encrypted key');
+
+like(http_get('/', socket => getconn('127.0.0.1:8083')),
+	qr!X-Name: /CN=1.example!, 'valid certificate');
+unlike(http_get('/', socket => getconn('127.0.0.1:8084')),
+	qr!X-Name: /CN=1.example!, 'invalid certificate');
+
+###############################################################################
+
+sub getconn {
+	my $peer = shift;
+	my $s = IO::Socket::INET->new(
+		Proto => 'tcp',
+		PeerAddr => $peer || '127.0.0.1:8080'
+	)
+		or die "Can't connect to nginx: $!\n";
+
+	return $s;
+}
+
+###############################################################################