X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=apps%2Fdsaparam.c;h=8d48313d2bd324859d9ee4f6fc2d1ad704057c35;hp=085e4845c1040b5bc1b02ec2c51010f4ff412389;hb=480405e4a9a8f791324850c4f6b3d36d4e4de4f9;hpb=6b691a5c85ddc4e407e32781841fee5c029506cd

diff --git a/apps/dsaparam.c b/apps/dsaparam.c
index 085e4845c1..8d48313d2b 100644
--- a/apps/dsaparam.c
+++ b/apps/dsaparam.c
@@ -1,25 +1,24 @@
-/* apps/dsaparam.c */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
  * This package is an SSL implementation written
  * by Eric Young (eay@cryptsoft.com).
  * The implementation was written so as to conform with Netscapes SSL.
- * 
+ *
  * This library is free for commercial and non-commercial use as long as
  * the following conditions are aheared to.  The following conditions
  * apply to all code found in this distribution, be it the RC4, RSA,
  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  * included with this distribution is covered by the same copyright terms
  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- * 
+ *
  * Copyright remains Eric Young's, and as such any Copyright notices in
  * the code are not to be removed.
  * If this package is used in a product, Eric Young should be given attribution
  * as the author of the parts of the library used.
  * This can be in the form of a textual message at program startup or
  * in documentation (online or textual) provided with the package.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -34,10 +33,10 @@
  *     Eric Young (eay@cryptsoft.com)"
  *    The word 'cryptographic' can be left out if the rouines from the library
  *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from 
+ * 4. If you include any Windows specific code (or a derivative thereof) from
  *    the apps directory (application code) you must include an acknowledgement:
  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,308 +48,320 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- * 
+ *
  * The licence and distribution terms for any publically available version or
  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  * copied and put under another distribution licence
  * [including the GNU Public Licence.]
  */
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-#include <string.h>
-#include "apps.h"
-#include "bio.h"
-#include "err.h"
-#include "bn.h"
-#include "rand.h"
-#include "dsa.h"
-#include "x509.h"
-#include "pem.h"
+#include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */
 
-#undef PROG
-#define PROG	dsaparam_main
+#ifndef OPENSSL_NO_DSA
+# include <stdio.h>
+# include <stdlib.h>
+# include <time.h>
+# include <string.h>
+# include "apps.h"
+# include <openssl/bio.h>
+# include <openssl/err.h>
+# include <openssl/bn.h>
+# include <openssl/dsa.h>
+# include <openssl/x509.h>
+# include <openssl/pem.h>
 
-/* -inform arg	- input format - default PEM (one of DER, TXT or PEM)
- * -outform arg - output format - default PEM
- * -in arg	- input file - default stdin
- * -out arg	- output file - default stdout
- * -noout
- * -text
- * -C
- * -noout
- * -genkey
- */
+# ifdef GENCB_TEST
 
-#ifndef NOPROTO
-static void MS_CALLBACK dsa_cb(int p, int n, char *arg);
-#else
-static void MS_CALLBACK dsa_cb();
-#endif
+static int stop_keygen_flag = 0;
 
-int MAIN(int argc, char **argv)
-	{
-	DSA *dsa=NULL;
-	int i,badops=0,text=0;
-	BIO *in=NULL,*out=NULL;
-	int informat,outformat,noout=0,C=0,ret=1;
-	char *infile,*outfile,*prog,*inrand=NULL;
-	int numbits= -1,num,genkey=0;
-	char buffer[200],*randfile=NULL;
+static void timebomb_sigalarm(int foo)
+{
+    stop_keygen_flag = 1;
+}
 
-	apps_startup();
+# endif
 
-	if (bio_err == NULL)
-		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
-			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
+static int dsa_cb(int p, int n, BN_GENCB *cb);
 
-	infile=NULL;
-	outfile=NULL;
-	informat=FORMAT_PEM;
-	outformat=FORMAT_PEM;
+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_RAND, OPT_NON_FIPS_ALLOW, OPT_ENGINE,
+    OPT_TIMEBOMB
+} OPTION_CHOICE;
 
-	prog=argv[0];
-	argc--;
-	argv++;
-	while (argc >= 1)
-		{
-		if 	(strcmp(*argv,"-inform") == 0)
-			{
-			if (--argc < 1) goto bad;
-			informat=str2fmt(*(++argv));
-			}
-		else if (strcmp(*argv,"-outform") == 0)
-			{
-			if (--argc < 1) goto bad;
-			outformat=str2fmt(*(++argv));
-			}
-		else if (strcmp(*argv,"-in") == 0)
-			{
-			if (--argc < 1) goto bad;
-			infile= *(++argv);
-			}
-		else if (strcmp(*argv,"-out") == 0)
-			{
-			if (--argc < 1) goto bad;
-			outfile= *(++argv);
-			}
-		else if (strcmp(*argv,"-text") == 0)
-			text=1;
-		else if (strcmp(*argv,"-C") == 0)
-			C=1;
-		else if (strcmp(*argv,"-genkey") == 0)
-			genkey=1;
-		else if (strcmp(*argv,"-rand") == 0)
-			{
-			if (--argc < 1) goto bad;
-			inrand= *(++argv);
-			}
-		else if (strcmp(*argv,"-noout") == 0)
-			noout=1;
-		else if (sscanf(*argv,"%d",&num) == 1)
-			{
-			/* generate a key */
-			numbits=num;
-			}
-		else
-			{
-			BIO_printf(bio_err,"unknown option %s\n",*argv);
-			badops=1;
-			break;
-			}
-		argc--;
-		argv++;
-		}
+OPTIONS dsaparam_options[] = {
+    {"help", OPT_HELP, '-', "Display this summary"},
+    {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
+    {"in", OPT_IN, '<', "Input file"},
+    {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
+    {"out", OPT_OUT, '>', "Output file"},
+    {"text", OPT_TEXT, '-', "Print as text"},
+    {"C", OPT_C, '-', "Output C code"},
+    {"noout", OPT_NOOUT, '-', "No output"},
+    {"genkey", OPT_GENKEY, '-', "Generate a DSA key"},
+    {"rand", OPT_RAND, 's', "Files to use for random number input"},
+    {"non-fips-allow", OPT_NON_FIPS_ALLOW, '-'},
+# ifdef GENCB_TEST
+    {"timebomb", OPT_TIMEBOMB, 'p', "Interrupt keygen after 'pnum' seconds"},
+# endif
+# ifndef OPENSSL_NO_ENGINE
+    {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
+# endif
+    {NULL}
+};
 
-	if (badops)
-		{
-bad:
-		BIO_printf(bio_err,"%s [options] [bits] <infile >outfile\n",prog);
-		BIO_printf(bio_err,"where options are\n");
-		BIO_printf(bio_err," -inform arg   input format - one of DER TXT PEM\n");
-		BIO_printf(bio_err," -outform arg  output format - one of DER TXT 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         check the DSA parameters\n");
-		BIO_printf(bio_err," -C            Output C code\n");
-		BIO_printf(bio_err," -noout        no output\n");
-		BIO_printf(bio_err," -rand         files to use for random number input\n");
-		BIO_printf(bio_err," number        number of bits to use for generating private key\n");
-		goto end;
-		}
+int dsaparam_main(int argc, char **argv)
+{
+    DSA *dsa = NULL;
+    BIO *in = NULL, *out = NULL;
+    BN_GENCB *cb = NULL;
+    int numbits = -1, num = 0, genkey = 0, need_rand = 0, non_fips_allow = 0;
+    int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0, C = 0;
+    int ret = 1, i, text = 0, private = 0;
+# ifdef GENCB_TEST
+    int timebomb = 0;
+# endif
+    char *infile = NULL, *outfile = NULL, *prog, *inrand = NULL;
+    OPTION_CHOICE o;
 
-	ERR_load_crypto_strings();
+    prog = opt_init(argc, argv, dsaparam_options);
+    while ((o = opt_next()) != OPT_EOF) {
+        switch (o) {
+        case OPT_EOF:
+        case OPT_ERR:
+ opthelp:
+            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+            goto end;
+        case OPT_HELP:
+            opt_help(dsaparam_options);
+            ret = 0;
+            goto end;
+        case OPT_INFORM:
+            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
+                goto opthelp;
+            break;
+        case OPT_IN:
+            infile = opt_arg();
+            break;
+        case OPT_OUTFORM:
+            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
+                goto opthelp;
+            break;
+        case OPT_OUT:
+            outfile = opt_arg();
+            break;
+        case OPT_ENGINE:
+            (void)setup_engine(opt_arg(), 0);
+            break;
+        case OPT_TIMEBOMB:
+# ifdef GENCB_TEST
+            timebomb = atoi(opt_arg());
+            break;
+# endif
+        case OPT_TEXT:
+            text = 1;
+            break;
+        case OPT_C:
+            C = 1;
+            break;
+        case OPT_GENKEY:
+            genkey = need_rand = 1;
+            break;
+        case OPT_RAND:
+            inrand = opt_arg();
+            need_rand = 1;
+            break;
+        case OPT_NOOUT:
+            noout = 1;
+            break;
+        case OPT_NON_FIPS_ALLOW:
+            non_fips_allow = 1;
+            break;
+        }
+    }
+    argc = opt_num_rest();
+    argv = opt_rest();
 
-	in=BIO_new(BIO_s_file());
-	out=BIO_new(BIO_s_file());
-	if ((in == NULL) || (out == NULL))
-		{
-		ERR_print_errors(bio_err);
-		goto end;
-		}
+    if (!app_load_modules(NULL))
+        goto end;
 
-	if (infile == NULL)
-		BIO_set_fp(in,stdin,BIO_NOCLOSE);
-	else
-		{
-		if (BIO_read_filename(in,infile) <= 0)
-			{
-			perror(infile);
-			goto end;
-			}
-		}
-	if (outfile == NULL)
-		BIO_set_fp(out,stdout,BIO_NOCLOSE);
-	else
-		{
-		if (BIO_write_filename(out,outfile) <= 0)
-			{
-			perror(outfile);
-			goto end;
-			}
-		}
+    if (argc == 1) {
+        if (!opt_int(argv[0], &num))
+            goto end;
+        /* generate a key */
+        numbits = num;
+        need_rand = 1;
+    }
+    private = genkey ? 1 : 0;
 
-	if (numbits > 0)
-		{
-		randfile=RAND_file_name(buffer,200);
-		RAND_load_file(randfile,1024L*1024L);
+    in = bio_open_default(infile, "r");
+    if (in == NULL)
+        goto end;
+    out = bio_open_owner(outfile, "w", private);
+    if (out == NULL)
+        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");
-	        dsa=DSA_generate_parameters(num,NULL,0,NULL,NULL,
-			dsa_cb,(char *)bio_err);
-		}
-	else if	(informat == FORMAT_ASN1)
-		dsa=d2i_DSAparams_bio(in,NULL);
-	else if (informat == FORMAT_PEM)
-		dsa=PEM_read_bio_DSAparams(in,NULL,NULL);
-	else
-		{
-		BIO_printf(bio_err,"bad input format specified\n");
-		goto end;
-		}
-	if (dsa == NULL)
-		{
-		BIO_printf(bio_err,"unable to load DSA parameters\n");
-		ERR_print_errors(bio_err);
-		goto end;
-		}
+    if (need_rand) {
+        app_RAND_load_file(NULL, (inrand != NULL));
+        if (inrand != NULL)
+            BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
+                       app_RAND_load_files(inrand));
+    }
 
-	if (text)
-		{
-		DSAparams_print(out,dsa);
-		}
-	
-	if (C)
-		{
-		unsigned char *data;
-		int l,len,bits_p,bits_q,bits_g;
+    if (numbits > 0) {
+        cb = BN_GENCB_new();
+        if (!cb) {
+            BIO_printf(bio_err, "Error allocating BN_GENCB object\n");
+            goto end;
+        }
+        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");
+# 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);
+    else
+        dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL);
+    if (dsa == NULL) {
+        BIO_printf(bio_err, "unable to load DSA parameters\n");
+        ERR_print_errors(bio_err);
+        goto end;
+    }
 
-		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 *)Malloc(len+20);
-		if (data == NULL)
-			{
-			perror("Malloc");
-			goto end;
-			}
-		l=BN_bn2bin(dsa->p,data);
-		printf("static unsigned char dsa%d_p[]={",bits_p);
-		for (i=0; i<l; i++)
-			{
-			if ((i%12) == 0) printf("\n\t");
-			printf("0x%02X,",data[i]);
-			}
-		printf("\n\t};\n");
+    if (text) {
+        DSAparams_print(out, dsa);
+    }
 
-		l=BN_bn2bin(dsa->q,data);
-		printf("static unsigned char dsa%d_q[]={",bits_p);
-		for (i=0; i<l; i++)
-			{
-			if ((i%12) == 0) printf("\n\t");
-			printf("0x%02X,",data[i]);
-			}
-		printf("\n\t};\n");
+    if (C) {
+        int len = BN_num_bytes(dsa->p);
+        int bits_p = BN_num_bits(dsa->p);
+        unsigned char *data = app_malloc(len + 20, "BN space");
 
-		l=BN_bn2bin(dsa->g,data);
-		printf("static unsigned char dsa%d_g[]={",bits_p);
-		for (i=0; i<l; i++)
-			{
-			if ((i%12) == 0) printf("\n\t");
-			printf("0x%02X,",data[i]);
-			}
-		printf("\n\t};\n\n");
+        BIO_printf(bio_out, "DSA *get_dsa%d()\n{\n", bits_p);
+        print_bignum_var(bio_out, dsa->p, "dsap", len, data);
+        print_bignum_var(bio_out, dsa->q, "dsaq", len, data);
+        print_bignum_var(bio_out, dsa->g, "dsag", len, data);
+        BIO_printf(bio_out, "    DSA *dsa = DSA_new();\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"
+                            "        return NULL;\n"
+                            "    }\n"
+                            "    return(dsa);\n}\n");
+    }
 
-		printf("DSA *get_dsa%d()\n\t{\n",bits_p);
-		printf("\tDSA *dsa;\n\n");
-		printf("\tif ((dsa=DSA_new()) == NULL) return(NULL);\n");
-		printf("\tdsa->p=BN_bin2bn(dsa%d_p,sizeof(dsa%d_p),NULL);\n",
-			bits_p,bits_p);
-		printf("\tdsa->q=BN_bin2bn(dsa%d_q,sizeof(dsa%d_q),NULL);\n",
-			bits_p,bits_p);
-		printf("\tdsa->g=BN_bin2bn(dsa%d_g,sizeof(dsa%d_g),NULL);\n",
-			bits_p,bits_p);
-		printf("\tif ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))\n");
-		printf("\t\treturn(NULL);\n");
-		printf("\treturn(dsa);\n\t}\n");
-		}
+    if (!noout) {
+        if (outformat == FORMAT_ASN1)
+            i = i2d_DSAparams_bio(out, dsa);
+        else
+            i = PEM_write_bio_DSAparams(out, dsa);
+        if (!i) {
+            BIO_printf(bio_err, "unable to write DSA parameters\n");
+            ERR_print_errors(bio_err);
+            goto end;
+        }
+    }
+    if (genkey) {
+        DSA *dsakey;
 
+        assert(need_rand);
+        if ((dsakey = DSAparams_dup(dsa)) == NULL)
+            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;
+        }
+        assert(private);
+        if (outformat == FORMAT_ASN1)
+            i = i2d_DSAPrivateKey_bio(out, dsakey);
+        else
+            i = PEM_write_bio_DSAPrivateKey(out, dsakey, NULL, NULL, 0, NULL,
+                                            NULL);
+        DSA_free(dsakey);
+    }
+    if (need_rand)
+        app_RAND_write_file(NULL);
+    ret = 0;
+ end:
+    BN_GENCB_free(cb);
+    BIO_free(in);
+    BIO_free_all(out);
+    DSA_free(dsa);
+    return (ret);
+}
 
-	if (!noout)
-		{
-		if 	(outformat == FORMAT_ASN1)
-			i=i2d_DSAparams_bio(out,dsa);
-		else if (outformat == FORMAT_PEM)
-			i=PEM_write_bio_DSAparams(out,dsa);
-		else	{
-			BIO_printf(bio_err,"bad output format specified for outfile\n");
-			goto end;
-			}
-		if (!i)
-			{
-			BIO_printf(bio_err,"unable to write DSA paramaters\n");
-			ERR_print_errors(bio_err);
-			goto end;
-			}
-		}
-	if (genkey)
-		{
-		DSA *dsakey;
+static int dsa_cb(int p, int n, BN_GENCB *cb)
+{
+    char c = '*';
 
-		if ((dsakey=DSAparams_dup(dsa)) == NULL) goto end;
-		if (!DSA_generate_key(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);
-		else	{
-			BIO_printf(bio_err,"bad output format specified for outfile\n");
-			goto end;
-			}
-		DSA_free(dsakey);
-		}
-	ret=0;
-end:
-	if (in != NULL) BIO_free(in);
-	if (out != NULL) BIO_free(out);
-	if (dsa != NULL) DSA_free(dsa);
-	EXIT(ret);
-	}
+    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));
+# ifdef GENCB_TEST
+    if (stop_keygen_flag)
+        return 0;
+# endif
+    return 1;
+}
+#else                           /* !OPENSSL_NO_DSA */
 
-static void MS_CALLBACK dsa_cb(int p, int n, char *arg)
-	{
-	char c='*';
+# if PEDANTIC
+static void *dummy = &dummy;
+# endif
 
-	if (p == 0) c='.';
-	if (p == 1) c='+';
-	if (p == 2) c='*';
-	if (p == 3) c='\n';
-	BIO_write((BIO *)arg,&c,1);
-	BIO_flush((BIO *)arg);
-#ifdef LINT
-	p=n;
 #endif
-	}