new file mode 100644
--- /dev/null
+++ b/ssl_engine_keys.t
@@ -0,0 +1,129 @@
+#!/usr/bin/perl
+
+# (C) Sergey Kandaurov
+# (C) Nginx, Inc.
+
+# Tests for http ssl module, loading "engine:..." keys.
+
+###############################################################################
+
+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;
+
+plan(skip_all => 'win32') if $^O eq 'MSWin32';
+
+plan(skip_all => 'may not work, leaves coredump')
+	unless $ENV{TEST_NGINX_UNSAFE};
+
+my $t = Test::Nginx->new()->has(qw/http http_ssl/)->has_daemon('openssl')
+	->has_daemon('softhsm')->has_daemon('pkcs11-tool')->plan(1);
+
+$t->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    server {
+        listen       127.0.0.1:8443 ssl;
+        listen       127.0.0.1:8080;
+        server_name  localhost;
+
+        ssl_certificate_key engine:pkcs11:slot_0-id_00;
+        ssl_certificate localhost.crt;
+
+        location / {
+            # index index.html by default
+        }
+        location /proxy {
+            proxy_pass https://127.0.0.1:8443/;
+        }
+    }
+}
+
+EOF
+
+# Create a SoftHSM token with a secret key, and configure OpenSSL
+# to access it using the pkcs11 engine, see detailed example
+# posted by Dmitrii Pichulin here:
+#
+# http://mailman.nginx.org/pipermail/nginx-devel/2014-October/006151.html
+#
+# Note that library paths may differ on different systems,
+# and may need to be adjusted.
+
+$t->write_file('openssl.conf', <<EOF);
+openssl_conf = openssl_def
+
+[openssl_def]
+engines = engine_section
+
+[engine_section]
+pkcs11 = pkcs11_section
+
+[pkcs11_section]
+engine_id = pkcs11
+dynamic_path = /usr/local/lib/engines/engine_pkcs11.so
+MODULE_PATH = /usr/local/lib/softhsm/libsofthsm.so
+init = 0
+PIN = 1234
+
+[ req ]
+default_bits = 2048
+encrypt_key = no
+distinguished_name = req_distinguished_name
+[ req_distinguished_name ]
+EOF
+
+my $d = $t->testdir();
+
+$t->write_file('softhsm.conf', <<EOF);
+0:$d/slot0.db
+EOF
+
+$ENV{SOFTHSM_CONF} = "$d/softhsm.conf";
+$ENV{OPENSSL_CONF} = "$d/openssl.conf";
+
+foreach my $name ('localhost') {
+	system('softhsm --init-token --slot 0 --label "NginxZero" '
+		. '--pin 1234 --so-pin 1234 '
+		. ">>$d/openssl.out 2>&1");
+
+	system('pkcs11-tool --module=/usr/local/lib/softhsm/libsofthsm.so '
+		. '-p 1234 -l -k -d 0 -a nx_key_0 --key-type rsa:2048 '
+		. ">>$d/openssl.out 2>&1");
+
+	system('openssl req -x509 -new -engine pkcs11 '
+		. "-config '$d/openssl.conf' -subj '/CN=$name/' "
+		. "-out '$d/$name.crt' -keyform engine -text -key id_00 "
+		. ">>$d/openssl.out 2>&1") == 0
+		or die "Can't create certificate for $name: $!\n";
+}
+
+$t->try_run('no ssl_certificate_key engine');
+
+$t->write_file('index.html', '');
+
+###############################################################################
+
+like(http_get('/proxy'), qr/200 OK/, 'ssl engine keys');
+
+###############################################################################