Security framework.
[openssl.git] / apps / dsaparam.c
index 7ce49d90c3658a03c38cd9698120a80c44c5f430..03e33f9f7eb0fed47f177a4ee52acb6af7368c78 100644 (file)
  * [including the GNU Public Licence.]
  */
 
+#include <openssl/opensslconf.h>       /* for OPENSSL_NO_DSA */
+/* Until the key-gen callbacks are modified to use newer prototypes, we allow
+ * deprecated functions for openssl-internal code */
+#ifdef OPENSSL_NO_DEPRECATED
+#undef OPENSSL_NO_DEPRECATED
+#endif
+
 #ifndef OPENSSL_NO_DSA
 #include <assert.h>
 #include <stdio.h>
@@ -69,7 +76,6 @@
 #include <openssl/dsa.h>
 #include <openssl/x509.h>
 #include <openssl/pem.h>
-#include <openssl/engine.h>
 
 #undef PROG
 #define PROG   dsaparam_main
  * -C
  * -noout
  * -genkey
+ *  #ifdef GENCB_TEST
+ * -timebomb n  - interrupt keygen after <n> seconds
+ *  #endif
  */
 
-static void MS_CALLBACK dsa_cb(int p, int n, void *arg);
+#ifdef GENCB_TEST
+
+static int stop_keygen_flag = 0;
+
+static void timebomb_sigalarm(int foo)
+       {
+       stop_keygen_flag = 1;
+       }
+
+#endif
+
+static int MS_CALLBACK dsa_cb(int p, int n, BN_GENCB *cb);
 
 int MAIN(int, char **);
 
 int MAIN(int argc, char **argv)
        {
-       ENGINE *e = NULL;
        DSA *dsa=NULL;
        int i,badops=0,text=0;
        BIO *in=NULL,*out=NULL;
@@ -99,7 +118,13 @@ int MAIN(int argc, char **argv)
        char *infile,*outfile,*prog,*inrand=NULL;
        int numbits= -1,num,genkey=0;
        int need_rand=0;
+       int non_fips_allow = 0;
+#ifndef OPENSSL_NO_ENGINE
        char *engine=NULL;
+#endif
+#ifdef GENCB_TEST
+       int timebomb=0;
+#endif
 
        apps_startup();
 
@@ -107,6 +132,9 @@ int MAIN(int argc, char **argv)
                if ((bio_err=BIO_new(BIO_s_file())) != NULL)
                        BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 
+       if (!load_config(bio_err, NULL))
+               goto end;
+
        infile=NULL;
        outfile=NULL;
        informat=FORMAT_PEM;
@@ -137,11 +165,20 @@ int MAIN(int argc, char **argv)
                        if (--argc < 1) goto bad;
                        outfile= *(++argv);
                        }
+#ifndef OPENSSL_NO_ENGINE
                else if(strcmp(*argv, "-engine") == 0)
                        {
                        if (--argc < 1) goto bad;
                        engine = *(++argv);
                        }
+#endif
+#ifdef GENCB_TEST
+               else if(strcmp(*argv, "-timebomb") == 0)
+                       {
+                       if (--argc < 1) goto bad;
+                       timebomb = atoi(*(++argv));
+                       }
+#endif
                else if (strcmp(*argv,"-text") == 0)
                        text=1;
                else if (strcmp(*argv,"-C") == 0)
@@ -159,6 +196,8 @@ int MAIN(int argc, char **argv)
                        }
                else if (strcmp(*argv,"-noout") == 0)
                        noout=1;
+               else if (strcmp(*argv,"-non-fips-allow") == 0)
+                       non_fips_allow = 1;
                else if (sscanf(*argv,"%d",&num) == 1)
                        {
                        /* generate a key */
@@ -184,11 +223,17 @@ bad:
                BIO_printf(bio_err," -outform arg  output format - DER or PEM\n");
                BIO_printf(bio_err," -in arg       input file\n");
                BIO_printf(bio_err," -out arg      output file\n");
-               BIO_printf(bio_err," -text         print the key in text\n");
+               BIO_printf(bio_err," -text         print as text\n");
                BIO_printf(bio_err," -C            Output C code\n");
                BIO_printf(bio_err," -noout        no output\n");
+               BIO_printf(bio_err," -genkey       generate a DSA key\n");
                BIO_printf(bio_err," -rand         files to use for random number input\n");
+#ifndef OPENSSL_NO_ENGINE
                BIO_printf(bio_err," -engine e     use engine e, possibly a hardware device.\n");
+#endif
+#ifdef GENCB_TEST
+               BIO_printf(bio_err," -timebomb n   interrupt keygen after <n> seconds\n");
+#endif
                BIO_printf(bio_err," number        number of bits to use for generating private key\n");
                goto end;
                }
@@ -232,7 +277,9 @@ bad:
                        }
                }
 
-        e = ENGINE_setup(engine, bio_err);
+#ifndef OPENSSL_NO_ENGINE
+        setup_engine(bio_err, engine, 0);
+#endif
 
        if (need_rand)
                {
@@ -244,10 +291,50 @@ bad:
 
        if (numbits > 0)
                {
+               BN_GENCB cb;
+               BN_GENCB_set(&cb, dsa_cb, bio_err);
                assert(need_rand);
+               dsa = DSA_new();
+               if(!dsa)
+                       {
+                       BIO_printf(bio_err,"Error allocating DSA object\n");
+                       goto end;
+                       }
+               if (non_fips_allow)
+                       dsa->flags |= DSA_FLAG_NON_FIPS_ALLOW;
                BIO_printf(bio_err,"Generating DSA parameters, %d bit long prime\n",num);
                BIO_printf(bio_err,"This could take some time\n");
-               dsa=DSA_generate_parameters(num,NULL,0,NULL,NULL, dsa_cb,bio_err);
+#ifdef GENCB_TEST
+               if(timebomb > 0)
+       {
+               struct sigaction act;
+               act.sa_handler = timebomb_sigalarm;
+               act.sa_flags = 0;
+               BIO_printf(bio_err,"(though I'll stop it if not done within %d secs)\n",
+                               timebomb);
+               if(sigaction(SIGALRM, &act, NULL) != 0)
+                       {
+                       BIO_printf(bio_err,"Error, couldn't set SIGALRM handler\n");
+                       goto end;
+                       }
+               alarm(timebomb);
+       }
+#endif
+               if(!DSA_generate_parameters_ex(dsa,num,NULL,0,NULL,NULL, &cb))
+                       {
+#ifdef GENCB_TEST
+                       if(stop_keygen_flag)
+                               {
+                               BIO_printf(bio_err,"DSA key generation time-stopped\n");
+                               /* This is an asked-for behaviour! */
+                               ret = 0;
+                               goto end;
+                               }
+#endif
+                       ERR_print_errors(bio_err);
+                       BIO_printf(bio_err,"Error, DSA key generation failed\n");
+                       goto end;
+                       }
                }
        else if (informat == FORMAT_ASN1)
                dsa=d2i_DSAparams_bio(in,NULL);
@@ -273,12 +360,10 @@ bad:
        if (C)
                {
                unsigned char *data;
-               int l,len,bits_p,bits_q,bits_g;
+               int l,len,bits_p;
 
                len=BN_num_bytes(dsa->p);
                bits_p=BN_num_bits(dsa->p);
-               bits_q=BN_num_bits(dsa->q);
-               bits_g=BN_num_bits(dsa->g);
                data=(unsigned char *)OPENSSL_malloc(len+20);
                if (data == NULL)
                        {
@@ -350,13 +435,21 @@ bad:
 
                assert(need_rand);
                if ((dsakey=DSAparams_dup(dsa)) == NULL) goto end;
-               if (!DSA_generate_key(dsakey)) goto end;
+               if (non_fips_allow)
+                       dsakey->flags |= DSA_FLAG_NON_FIPS_ALLOW;
+               if (!DSA_generate_key(dsakey))
+                       {
+                       ERR_print_errors(bio_err);
+                       DSA_free(dsakey);
+                       goto end;
+                       }
                if      (outformat == FORMAT_ASN1)
                        i=i2d_DSAPrivateKey_bio(out,dsakey);
                else if (outformat == FORMAT_PEM)
                        i=PEM_write_bio_DSAPrivateKey(out,dsakey,NULL,NULL,0,NULL,NULL);
                else    {
                        BIO_printf(bio_err,"bad output format specified for outfile\n");
+                       DSA_free(dsakey);
                        goto end;
                        }
                DSA_free(dsakey);
@@ -368,10 +461,11 @@ end:
        if (in != NULL) BIO_free(in);
        if (out != NULL) BIO_free_all(out);
        if (dsa != NULL) DSA_free(dsa);
-       EXIT(ret);
+       apps_shutdown();
+       OPENSSL_EXIT(ret);
        }
 
-static void MS_CALLBACK dsa_cb(int p, int n, void *arg)
+static int MS_CALLBACK dsa_cb(int p, int n, BN_GENCB *cb)
        {
        char c='*';
 
@@ -379,10 +473,21 @@ static void MS_CALLBACK dsa_cb(int p, int n, void *arg)
        if (p == 1) c='+';
        if (p == 2) c='*';
        if (p == 3) c='\n';
-       BIO_write(arg,&c,1);
-       (void)BIO_flush(arg);
+       BIO_write(cb->arg,&c,1);
+       (void)BIO_flush(cb->arg);
 #ifdef LINT
        p=n;
 #endif
+#ifdef GENCB_TEST
+       if(stop_keygen_flag)
+               return 0;
+#endif
+       return 1;
        }
+#else /* !OPENSSL_NO_DSA */
+
+# if PEDANTIC
+static void *dummy=&dummy;
+# endif
+
 #endif