Convert jdkTrustedKeyUsage to be a pkcs12 cmd line option

Creating JDK compatible pkcs12 files requires a bit more than just
adding the Trusted Key Usage OID to a certbag in the pkcs12 file.
Additionally the JDK currently requires that pkcs12 files setting this
oid _not_ contain any additional keys, and in response will produce
unpredictable results.

This could be solved by implying --nokeys when the pkcs12 utility is run
and the config option is set, but thatcould confuse users who didn't
specify nokeys on the command line.  As such, remove the config file
setting for this feature, and replace it with a -jdktrust command line
option, that is documented to assert nokeys when a users specifies the
new command line option.

Fixes #22215

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22422)

apps/openssl-vms.cnf

@@ -388,10 +388,3 @@ oldcert = $insta::certout # insta.cert.pem
 # Certificate revocation
 cmd = rr
 oldcert = $insta::certout # insta.cert.pem
-
-[pkcs12]
-certBagAttr = cb_attr
-
-# Uncomment this if you need Java compatible PKCS12 files
-[cb_attr]
-#jdkTrustedKeyUsage = anyExtendedKeyUsage

apps/openssl.cnf

@@ -388,10 +388,3 @@ oldcert = $insta::certout # insta.cert.pem
 # Certificate revocation
 cmd = rr
 oldcert = $insta::certout # insta.cert.pem
-
-[pkcs12]
-certBagAttr = cb_attr
-
-# Uncomment this if you need Java compatible PKCS12 files
-[cb_attr]
-#jdkTrustedKeyUsage = anyExtendedKeyUsage

apps/pkcs12.c

@@ -71,7 +71,7 @@ typedef enum OPTION_choice {
     OPT_NAME, OPT_CSP, OPT_CANAME,
     OPT_IN, OPT_OUT, OPT_PASSIN, OPT_PASSOUT, OPT_PASSWORD, OPT_CAPATH,
     OPT_CAFILE, OPT_CASTORE, OPT_NOCAPATH, OPT_NOCAFILE, OPT_NOCASTORE, OPT_ENGINE,
-    OPT_R_ENUM, OPT_PROV_ENUM,
+    OPT_R_ENUM, OPT_PROV_ENUM, OPT_JDKTRUST,
 #ifndef OPENSSL_NO_DES
     OPT_LEGACY_ALG
 #endif
@@ -154,6 +154,7 @@ const OPTIONS pkcs12_options[] = {
     {"maciter", OPT_MACITER, '-', "Unused, kept for backwards compatibility"},
     {"macsaltlen", OPT_MACSALTLEN, 'p', "Specify the salt len for MAC"},
     {"nomac", OPT_NOMAC, '-', "Don't generate MAC"},
+    {"jdktrust", OPT_JDKTRUST, 's', "Mark certificate in PKCS#12 store as trusted for JDK compatibility"},
     {NULL}
 };
 
@@ -165,6 +166,7 @@ int pkcs12_main(int argc, char **argv)
     char *name = NULL, *csp_name = NULL;
     char pass[PASSWD_BUF_SIZE] = "", macpass[PASSWD_BUF_SIZE] = "";
     int export_pkcs12 = 0, options = 0, chain = 0, twopass = 0, keytype = 0;
+    char *jdktrust = NULL;
 #ifndef OPENSSL_NO_DES
     int use_legacy = 0;
 #endif
@@ -222,6 +224,11 @@ int pkcs12_main(int argc, char **argv)
         case OPT_NOOUT:
             options |= (NOKEYS | NOCERTS);
             break;
+        case OPT_JDKTRUST:
+            jdktrust = opt_arg();
+            /* Adding jdk trust implies nokeys */
+            options |= NOKEYS;
+            break;
         case OPT_INFO:
             options |= INFO;
             break;
@@ -530,9 +537,6 @@ int pkcs12_main(int argc, char **argv)
         int i;
         CONF *conf = NULL;
         ASN1_OBJECT *obj = NULL;
-        STACK_OF(CONF_VALUE) *cb_sk = NULL;
-        const char *cb_attr = NULL;
-        const CONF_VALUE *val = NULL;
 
         if ((options & (NOCERTS | NOKEYS)) == (NOCERTS | NOKEYS)) {
             BIO_printf(bio_err, "Nothing to export due to -noout or -nocerts and -nokeys\n");
@@ -682,20 +686,9 @@ int pkcs12_main(int argc, char **argv)
             goto export_end;
         if (!app_load_modules(conf))
             goto export_end;
-        /* Find the cert bag section */
-        cb_attr = app_conf_try_string(conf, "pkcs12", "certBagAttr");
-        if (cb_attr != NULL) {
-            if ((cb_sk = NCONF_get_section(conf, cb_attr)) != NULL) {
-                for (i = 0; i < sk_CONF_VALUE_num(cb_sk); i++) {
-                    val = sk_CONF_VALUE_value(cb_sk, i);
-                    if (strcmp(val->name, "jdkTrustedKeyUsage") == 0) {
-                        obj = OBJ_txt2obj(val->value, 0);
-                        break;
-                    }
-                }
-            } else {
-                ERR_clear_error();
-            }
+
+        if (jdktrust != NULL) {
+            obj = OBJ_txt2obj(jdktrust, 0);
         }
 
         p12 = PKCS12_create_ex2(cpass, name, key, ee_cert, certs,

doc/man1/openssl-pkcs12.pod.in

@@ -68,6 +68,7 @@ PKCS#12 output (export) options:
 [B<-maciter>]
 [B<-macsaltlen>]
 [B<-nomac>]
+[B<-jdktrust> I<usage>]
 
 =head1 DESCRIPTION
 
@@ -381,6 +382,15 @@ Do not attempt to provide the MAC integrity. This can be useful with the FIPS
 provider as the PKCS12 MAC requires PKCS12KDF which is not an approved FIPS
 algorithm and cannot be supported by the FIPS provider.
 
+=item B<-jdktrust>
+
+Export pkcs12 file in a format compatible with Java keystore usage. This option
+accepts a string parameter indicating the trust oid name to be granted to the
+certificate it is associated with.  Currently only "anyExtendedKeyUsage" is
+defined. Note that, as Java keystores do not accept PKCS12 files with both
+trusted certificates and keypairs, use of this option implies the setting of the
+B<-nokeys> option
+
 =back
 
 =head1 NOTES

test/recipes/80-test_pkcs12.t

@@ -172,9 +172,8 @@ ok(grep(/Trusted key usage (Oracle)/, @pkcs12info) == 0,
 
 # Test with Oracle Trusted Key Usage specified in openssl.cnf
 {
-    $ENV{OPENSSL_CONF} = srctop_file("test", "recipes", "80-test_pkcs12_data", "jdk_trusted.cnf");
     ok(run(app(["openssl", "pkcs12", "-export", "-out", $outfile7,
-                "-in", srctop_file(@path, "ee-cert.pem"),
+                "-jdktrust", "anyExtendedKeyUsage", "-in", srctop_file(@path, "ee-cert.pem"),
                 "-nokeys", "-passout", "pass:", "-certpbe", "NONE"])),
        "test nokeys single cert");
 

test/recipes/80-test_pkcs12_data/jdk_trusted.cnf

@@ -1,8 +0,0 @@
-#
-[pkcs12]
-certBagAttr = cb_attr
-
-# Uncomment this if you need Java compatible PKCS12 files
-[cb_attr]
-jdkTrustedKeyUsage = anyExtendedKeyUsage
-