-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;
- int informat,outformat,noout=0,C=0,ret=1;
- char *infile,*outfile,*prog,*inrand=NULL;
- int numbits= -1,num,genkey=0;
- int need_rand=0;
- char *engine=NULL;
-#ifdef GENCB_TEST
- int timebomb=0;
-#endif
-
- apps_startup();
-
- if (bio_err == NULL)
- 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;
- outformat=FORMAT_PEM;
-
- 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, "-engine") == 0)
- {
- if (--argc < 1) goto bad;
- engine = *(++argv);
- }
-#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)
- C=1;
- else if (strcmp(*argv,"-genkey") == 0)
- {
- genkey=1;
- need_rand=1;
- }
- else if (strcmp(*argv,"-rand") == 0)
- {
- if (--argc < 1) goto bad;
- inrand= *(++argv);
- need_rand=1;
- }
- else if (strcmp(*argv,"-noout") == 0)
- noout=1;
- else if (sscanf(*argv,"%d",&num) == 1)
- {
- /* generate a key */
- numbits=num;
- need_rand=1;
- }
- else
- {
- BIO_printf(bio_err,"unknown option %s\n",*argv);
- badops=1;
- break;
- }
- argc--;
- argv++;
- }
-
- 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 - DER or PEM\n");
- 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 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");
- BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
-#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;
- }
-
- ERR_load_crypto_strings();
-
- 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 (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);
-#ifdef OPENSSL_SYS_VMS
- {
- BIO *tmpbio = BIO_new(BIO_f_linebuffer());
- out = BIO_push(tmpbio, out);
- }
-#endif
- }
- else
- {
- if (BIO_write_filename(out,outfile) <= 0)
- {
- perror(outfile);
- goto end;
- }
- }
-
- e = setup_engine(bio_err, engine, 0);
-
- if (need_rand)
- {
- app_RAND_load_file(NULL, bio_err, (inrand != NULL));
- if (inrand != NULL)
- BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
- app_RAND_load_files(inrand));
- }
-
- if (numbits > 0)
- {
- BN_GENCB cb;
- cb.ver = 2;
- cb.cb_2 = dsa_cb;
- cb.arg = bio_err;
-
- assert(need_rand);
- dsa = DSA_new();
- if(!dsa)
- {
- 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");
-#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
- BIO_printf(bio_err,"Error, DSA key generation failed\n");
- goto end;
- }
- }
- else if (informat == FORMAT_ASN1)
- dsa=d2i_DSAparams_bio(in,NULL);
- else if (informat == FORMAT_PEM)
- dsa=PEM_read_bio_DSAparams(in,NULL,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 (text)
- {
- DSAparams_print(out,dsa);
- }
-
- if (C)
- {
- unsigned char *data;
- int l,len,bits_p,bits_q,bits_g;
-
- 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)
- {
- perror("OPENSSL_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");
-
- 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");
-
- 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");
-
- 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\t{ DSA_free(dsa); return(NULL); }\n");
- printf("\treturn(dsa);\n\t}\n");
- }
-
-
- 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 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 (!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,NULL);
- else {
- BIO_printf(bio_err,"bad output format specified for outfile\n");
- goto end;
- }
- DSA_free(dsakey);
- }
- if (need_rand)
- app_RAND_write_file(NULL, bio_err);
- ret=0;
-end:
- if (in != NULL) BIO_free(in);
- if (out != NULL) BIO_free_all(out);
- if (dsa != NULL) DSA_free(dsa);
- apps_shutdown();
- OPENSSL_EXIT(ret);
- }
-
-static int MS_CALLBACK dsa_cb(int p, int n, BN_GENCB *cb)
- {
- char c='*';
-
- if (p == 0) c='.';
- if (p == 1) c='+';
- if (p == 2) c='*';
- if (p == 3) c='\n';
- 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;
- }