Add answers for EVP_PKEY_get_default_digest_name() in RSA and DSA keymgmt

[openssl.git] / apps / dsaparam.c

diff --git a/apps/dsaparam.c b/apps/dsaparam.c
index 8e33ffd6b0230b68f8d6fd5075ad1fdb7f4220dd..17068fb9d0eacd45317a0eb140519f3df3dcb453 100644 (file)
--- a/apps/dsaparam.c
+++ b/apps/dsaparam.c
@@ -1,7 +1,7 @@
 /*
  * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * 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
@@ -25,28 +25,43 @@ NON_EMPTY_TRANSLATION_UNIT
 # include <openssl/x509.h>
 # include <openssl/pem.h>
 
+static int verbose = 0;
+
 static int dsa_cb(int p, int n, BN_GENCB *cb);
 
 typedef enum OPTION_choice {
     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
     OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_TEXT, OPT_C,
-    OPT_NOOUT, OPT_GENKEY, OPT_ENGINE, OPT_R_ENUM
+    OPT_NOOUT, OPT_GENKEY, OPT_ENGINE, OPT_VERBOSE,
+    OPT_R_ENUM
 } OPTION_CHOICE;
 
 const OPTIONS dsaparam_options[] = {
+    {OPT_HELP_STR, 1, '-', "Usage: %s [options] [numbits]\n"},
+
+    OPT_SECTION("General"),
     {"help", OPT_HELP, '-', "Display this summary"},
-    {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
+# ifndef OPENSSL_NO_ENGINE
+    {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
+# endif
+
+    OPT_SECTION("Input"),
     {"in", OPT_IN, '<', "Input file"},
-    {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
+    {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
+
+    OPT_SECTION("Output"),
     {"out", OPT_OUT, '>', "Output file"},
+    {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
     {"text", OPT_TEXT, '-', "Print as text"},
     {"C", OPT_C, '-', "Output C code"},
     {"noout", OPT_NOOUT, '-', "No output"},
+    {"verbose", OPT_VERBOSE, '-', "Verbose output"},
     {"genkey", OPT_GENKEY, '-', "Generate a DSA key"},
+
     OPT_R_OPTIONS,
-# ifndef OPENSSL_NO_ENGINE
-    {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
-# endif
+
+    OPT_PARAMETERS(),
+    {"numbits", 0, 0, "Number of bits if generating parameters (optional)"},
     {NULL}
 };
 
@@ -107,6 +122,9 @@ int dsaparam_main(int argc, char **argv)
         case OPT_NOOUT:
             noout = 1;
             break;
+        case OPT_VERBOSE:
+            verbose = 1;
+            break;
         }
     }
     argc = opt_num_rest();
@@ -145,9 +163,11 @@ int dsaparam_main(int argc, char **argv)
             BIO_printf(bio_err, "Error allocating DSA object\n");
             goto end;
         }
-        BIO_printf(bio_err, "Generating DSA parameters, %d bit long prime\n",
-                   num);
-        BIO_printf(bio_err, "This could take some time\n");
+        if (verbose) {
+            BIO_printf(bio_err, "Generating DSA parameters, %d bit long prime\n",
+                       num);
+            BIO_printf(bio_err, "This could take some time\n");
+        }
         if (!DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL, cb)) {
             ERR_print_errors(bio_err);
             BIO_printf(bio_err, "Error, DSA key generation failed\n");
@@ -179,25 +199,28 @@ int dsaparam_main(int argc, char **argv)
 
         data = app_malloc(len + 20, "BN space");
 
-        BIO_printf(bio_out, "DSA *get_dsa%d()\n{\n", bits_p);
-        print_bignum_var(bio_out, p, "dsap", len, data);
-        print_bignum_var(bio_out, q, "dsaq", len, data);
-        print_bignum_var(bio_out, g, "dsag", len, data);
+        BIO_printf(bio_out, "static DSA *get_dsa%d(void)\n{\n", bits_p);
+        print_bignum_var(bio_out, p, "dsap", bits_p, data);
+        print_bignum_var(bio_out, q, "dsaq", bits_p, data);
+        print_bignum_var(bio_out, g, "dsag", bits_p, data);
         BIO_printf(bio_out, "    DSA *dsa = DSA_new();\n"
+                            "    BIGNUM *p, *q, *g;\n"
                             "\n");
         BIO_printf(bio_out, "    if (dsa == NULL)\n"
                             "        return NULL;\n");
-        BIO_printf(bio_out, "    dsa->p = BN_bin2bn(dsap_%d, sizeof(dsap_%d), NULL);\n",
-               bits_p, bits_p);
-        BIO_printf(bio_out, "    dsa->q = BN_bin2bn(dsaq_%d, sizeof(dsaq_%d), NULL);\n",
-               bits_p, bits_p);
-        BIO_printf(bio_out, "    dsa->g = BN_bin2bn(dsag_%d, sizeof(dsag_%d), NULL);\n",
-               bits_p, bits_p);
-        BIO_printf(bio_out, "    if (!dsa->p || !dsa->q || !dsa->g) {\n"
-                            "        DSA_free(dsa);\n"
+        BIO_printf(bio_out, "    if (!DSA_set0_pqg(dsa, p = BN_bin2bn(dsap_%d, sizeof(dsap_%d), NULL),\n",
+                   bits_p, bits_p);
+        BIO_printf(bio_out, "                           q = BN_bin2bn(dsaq_%d, sizeof(dsaq_%d), NULL),\n",
+                   bits_p, bits_p);
+        BIO_printf(bio_out, "                           g = BN_bin2bn(dsag_%d, sizeof(dsag_%d), NULL))) {\n",
+                   bits_p, bits_p);
+        BIO_printf(bio_out, "        DSA_free(dsa);\n"
+                            "        BN_free(p);\n"
+                            "        BN_free(q);\n"
+                            "        BN_free(g);\n"
                             "        return NULL;\n"
                             "    }\n"
-                            "    return(dsa);\n}\n");
+                            "    return dsa;\n}\n");
         OPENSSL_free(data);
     }
 
@@ -245,16 +268,12 @@ int dsaparam_main(int argc, char **argv)
 
 static int dsa_cb(int p, int n, BN_GENCB *cb)
 {
-    char c = '*';
+    static const char symbols[] = ".+*\n";
+    char c = (p >= 0 && (size_t)p < sizeof(symbols) - 1) ? symbols[p] : '?';
+
+    if (!verbose)
+        return 1;
 
-    if (p == 0)
-        c = '.';
-    if (p == 1)
-        c = '+';
-    if (p == 2)
-        c = '*';
-    if (p == 3)
-        c = '\n';
     BIO_write(BN_GENCB_get_arg(cb), &c, 1);
     (void)BIO_flush(BN_GENCB_get_arg(cb));
     return 1;