Add Tests for RSA signatures using X931 padding.

Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20211)

diff --git a/test/recipes/15-test_rsax931.t b/test/recipes/15-test_rsax931.t
new file mode 100644 (file)
index 0000000..04b32fa
--- /dev/null
+++ b/test/recipes/15-test_rsax931.t
@@ -0,0 +1,63 @@
+#! /usr/bin/env perl
+# Copyright 2023 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the Apache License 2.0 (the "License").  You may not use
+# this file except in compliance with the License.  You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+
+use strict;
+use warnings;
+
+use OpenSSL::Test qw(:DEFAULT srctop_file);
+use OpenSSL::Test::Utils;
+
+BEGIN {
+    setup("test_rsax931");
+}
+
+plan tests => 6;
+
+my $infile = srctop_file("test", "certs", "sm2.key");
+my $inkey = srctop_file("test", "testrsa2048.pem");
+
+ok(run(app(['openssl', 'pkeyutl', '-in', $infile, '-rawin', '-inkey', $inkey,
+            '-digest', 'SHA256',
+            '-pkeyopt', 'pad-mode:x931',
+            '-sign',
+            '-out', 'sigx931.txt'])),
+  "RSA Sign with x931 padding using SHA256");
+
+ok(run(app(['openssl', 'pkeyutl', '-in', $infile, '-rawin', '-inkey', $inkey,
+            '-digest', 'SHA256',
+            '-pkeyopt', 'pad-mode:x931',
+            '-verify',
+            '-sigfile', 'sigx931.txt'])),
+  "RSA Verify with x931 padding using SHA256");
+
+ok(!run(app(['openssl', 'pkeyutl', '-in', $infile, '-rawin', '-inkey', $inkey,
+             '-digest', 'SHA512',
+             '-pkeyopt', 'pad-mode:x931',
+             '-verify',
+             '-sigfile', 'sigx931.txt'])),
+  "RSA Verify with x931 padding fails if digest is different");
+
+ok(!run(app(['openssl', 'pkeyutl', '-in', $infile, '-rawin', '-inkey', $inkey,
+             '-digest', 'SHA512-256',
+             '-pkeyopt', 'pad-mode:x931',
+             '-sign'])),
+  "RSA Sign with x931 padding using unsupported digest should fail");
+
+ok(run(app(['openssl', 'pkeyutl', '-in', $infile, '-rawin', '-inkey', $inkey,
+            '-digest', 'SHA256',
+            '-pkeyopt', 'pad-mode:oaep',
+            '-sign',
+            '-out', 'sigoaep.txt'])),
+  "RSA Sign with oaep padding using SHA256");
+
+ok(!run(app(['openssl', 'pkeyutl', '-in', $infile, '-rawin', '-inkey', $inkey,
+             '-digest', 'SHA256',
+             '-pkeyopt', 'pad-mode:x931',
+             '-verify',
+             '-sigfile', 'sigoaep.txt'])),
+  "RSA Verify with x931 padding using data signed with oaep padding should fail");