More testing for sign/verify through `dgst`

Add tests for signature generation and verification with `dgst` CLI for
common key types:
- RSA
- DSA
- ECDSA

(cherry picked from commit ef1e59ed833e8ed1d5f4de5b0c734da8561890e3)

This is a backport from https://github.com/openssl/openssl/pull/10410.
Support for testing EdDSA through `pkeyutl` was dropped as the required
`-rawin` option is not supported in 1.1.1.

Fixes #10687

Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/11939)

1 files changed, 104 insertions, 0 deletions

diff --git a/test/recipes/20-test_dgst.t b/test/recipes/20-test_dgst.t
new file mode 100644
index 0000000000..1080770f53
--- /dev/null
+++ b/test/recipes/20-test_dgst.t
@@ -0,0 +1,104 @@
+#! /usr/bin/env perl
+# Copyright 2017 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 File::Spec;
+use OpenSSL::Test qw/:DEFAULT with srctop_file/;
+use OpenSSL::Test::Utils;
+
+setup("test_dgst");
+
+plan tests => 5;
+
+sub tsignverify {
+    my $testtext = shift;
+    my $privkey = shift;
+    my $pubkey = shift;
+
+    my $data_to_sign = srctop_file('test', 'README');
+    my $other_data = srctop_file('test', 'README.external');
+
+    plan tests => 4;
+
+    ok(run(app(['openssl', 'dgst', '-sign', $privkey,
+                '-out', 'testdgst.sig',
+                $data_to_sign])),
+       $testtext.": Generating signature");
+
+    ok(run(app(['openssl', 'dgst', '-prverify', $privkey,
+                '-signature', 'testdgst.sig',
+                $data_to_sign])),
+       $testtext.": Verify signature with private key");
+
+    ok(run(app(['openssl', 'dgst', '-verify', $pubkey,
+                '-signature', 'testdgst.sig',
+                $data_to_sign])),
+       $testtext.": Verify signature with public key");
+
+    ok(!run(app(['openssl', 'dgst', '-verify', $pubkey,
+                 '-signature', 'testdgst.sig',
+                 $other_data])),
+       $testtext.": Expect failure verifying mismatching data");
+
+    unlink 'testdgst.sig';
+}
+
+SKIP: {
+    skip "RSA is not supported by this OpenSSL build", 1
+        if disabled("rsa");
+
+    subtest "RSA signature generation and verification with `dgst` CLI" => sub {
+        tsignverify("RSA",
+                    srctop_file("test","testrsa.pem"),
+                    srctop_file("test","testrsapub.pem"));
+    };
+}
+
+SKIP: {
+    skip "DSA is not supported by this OpenSSL build", 1
+        if disabled("dsa");
+
+    subtest "DSA signature generation and verification with `dgst` CLI" => sub {
+        tsignverify("DSA",
+                    srctop_file("test","testdsa.pem"),
+                    srctop_file("test","testdsapub.pem"));
+    };
+}
+
+SKIP: {
+    skip "ECDSA is not supported by this OpenSSL build", 1
+        if disabled("ec");
+
+    subtest "ECDSA signature generation and verification with `dgst` CLI" => sub {
+        tsignverify("ECDSA",
+                    srctop_file("test","testec-p256.pem"),
+                    srctop_file("test","testecpub-p256.pem"));
+    };
+}
+
+SKIP: {
+    skip "EdDSA is not supported by this OpenSSL build", 2
+        if disabled("ec");
+
+    skip "EdDSA is not supported with `dgst` CLI", 2;
+
+    subtest "Ed25519 signature generation and verification with `dgst` CLI" => sub {
+        tsignverify("Ed25519",
+                    srctop_file("test","tested25519.pem"),
+                    srctop_file("test","tested25519pub.pem"));
+    };
+
+    subtest "Ed448 signature generation and verification with `dgst` CLI" => sub {
+        tsignverify("Ed448",
+                    srctop_file("test","tested448.pem"),
+                    srctop_file("test","tested448pub.pem"));
+    };
+}