int MAIN(int argc, char **argv)
{
#ifndef OPENSSL_NO_ENGINE
ENGINE *e = NULL;
#endif
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;
#ifndef OPENSSL_NO_ENGINE
char *engine=NULL;
#endif
#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);
}
#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)
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");
#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;
}
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;
}
}
#ifndef OPENSSL_NO_ENGINE
e = setup_engine(bio_err, engine, 0);
#endif
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;
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;
}
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);
}
inline void dsa_key::write_parameters(bio::bio_ptr bio) const
{
error::throw_error_if_not(PEM_write_bio_DSAparams(bio.raw(), ptr().get()) != 0);
}
int
dsaparam_main(int argc, char **argv)
{
DSA *dsa = NULL;
int i;
BIO *in = NULL, *out = NULL;
int ret = 1;
int numbits = -1;
char *strbits = NULL;
if (single_execution) {
if (pledge("stdio cpath wpath rpath", NULL) == -1) {
perror("pledge");
exit(1);
}
}
memset(&dsaparam_config, 0, sizeof(dsaparam_config));
dsaparam_config.informat = FORMAT_PEM;
dsaparam_config.outformat = FORMAT_PEM;
if (options_parse(argc, argv, dsaparam_options, &strbits, NULL) != 0) {
dsaparam_usage();
goto end;
}
if (strbits != NULL) {
const char *errstr;
numbits = strtonum(strbits, 0, INT_MAX, &errstr);
if (errstr) {
fprintf(stderr, "Invalid number of bits: %s", errstr);
goto end;
}
}
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 (dsaparam_config.infile == NULL)
BIO_set_fp(in, stdin, BIO_NOCLOSE);
else {
if (BIO_read_filename(in, dsaparam_config.infile) <= 0) {
perror(dsaparam_config.infile);
goto end;
}
}
if (dsaparam_config.outfile == NULL) {
BIO_set_fp(out, stdout, BIO_NOCLOSE);
} else {
if (BIO_write_filename(out, dsaparam_config.outfile) <= 0) {
perror(dsaparam_config.outfile);
goto end;
}
}
if (numbits > 0) {
BN_GENCB cb;
BN_GENCB_set(&cb, dsa_cb, bio_err);
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", numbits);
BIO_printf(bio_err, "This could take some time\n");
if (!DSA_generate_parameters_ex(dsa, numbits, NULL, 0, NULL, NULL, &cb)) {
ERR_print_errors(bio_err);
BIO_printf(bio_err, "Error, DSA key generation failed\n");
goto end;
}
} else if (dsaparam_config.informat == FORMAT_ASN1)
dsa = d2i_DSAparams_bio(in, NULL);
else if (dsaparam_config.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 (dsaparam_config.text) {
DSAparams_print(out, dsa);
}
if (dsaparam_config.C) {
unsigned char *data;
int l, len, bits_p;
len = BN_num_bytes(dsa->p);
bits_p = BN_num_bits(dsa->p);
data = 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");
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]);
}
free(data);
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 (!dsaparam_config.noout) {
if (dsaparam_config.outformat == FORMAT_ASN1)
i = i2d_DSAparams_bio(out, dsa);
else if (dsaparam_config.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 (dsaparam_config.genkey) {
DSA *dsakey;
if ((dsakey = DSAparams_dup(dsa)) == NULL)
goto end;
if (!DSA_generate_key(dsakey)) {
ERR_print_errors(bio_err);
DSA_free(dsakey);
goto end;
}
if (dsaparam_config.outformat == FORMAT_ASN1)
i = i2d_DSAPrivateKey_bio(out, dsakey);
else if (dsaparam_config.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);
}
ret = 0;
end:
BIO_free(in);
if (out != NULL)
BIO_free_all(out);
if (dsa != NULL)
DSA_free(dsa);
return (ret);
}
int dsaparam_main(int argc, char **argv)
{
DSA *dsa = NULL;
BIO *in = NULL, *out = NULL;
BN_GENCB *cb = NULL;
int numbits = -1, num, genkey = 0, need_rand = 0, non_fips_allow = 0;
int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0, C = 0, ret =
1;
int i, text = 0;
# ifdef GENCB_TEST
int timebomb = 0;
# endif
char *infile = NULL, *outfile = NULL, *prog, *inrand = NULL;
OPTION_CHOICE o;
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();
if (argc == 1) {
if (!opt_int(argv[0], &num))
goto end;
/* generate a key */
numbits = num;
need_rand = 1;
}
in = bio_open_default(infile, "r");
if (in == NULL)
goto end;
out = bio_open_default(outfile, "w");
if (out == NULL)
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 (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;
}
if (text) {
DSAparams_print(out, dsa);
}
if (C) {
unsigned char *data;
int len, bits_p;
len = BN_num_bytes(dsa->p);
bits_p = BN_num_bits(dsa->p);
data = (unsigned char *)OPENSSL_malloc(len + 20);
if (data == NULL) {
perror("OPENSSL_malloc");
goto end;
}
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");
}
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;
}
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:
if (cb != NULL)
BN_GENCB_free(cb);
BIO_free(in);
BIO_free_all(out);
DSA_free(dsa);
return (ret);
}
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;
int need_rand=0;
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);
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,"-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," -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;
}
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 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;
}
}
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)
{
assert(need_rand);
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);
}
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);
EXIT(ret);
}