diff options
Diffstat (limited to 'apps/ecparam.c')
-rw-r--r-- | apps/ecparam.c | 518 |
1 files changed, 193 insertions, 325 deletions
diff --git a/apps/ecparam.c b/apps/ecparam.c index c6a175146c..167ef39f6d 100644 --- a/apps/ecparam.c +++ b/apps/ecparam.c @@ -1,4 +1,3 @@ -/* apps/ecparam.c */ /* * Written by Nils Larsch for the OpenSSL project. */ @@ -84,235 +83,152 @@ # include <openssl/x509.h> # include <openssl/pem.h> -# undef PROG -# define PROG ecparam_main - -/*- - * -inform arg - input format - default PEM (DER or PEM) - * -outform arg - output format - default PEM - * -in arg - input file - default stdin - * -out arg - output file - default stdout - * -noout - do not print the ec parameter - * -text - print the ec parameters in text form - * -check - validate the ec parameters - * -C - print a 'C' function creating the parameters - * -name arg - use the ec parameters with 'short name' name - * -list_curves - prints a list of all currently available curve 'short names' - * -conv_form arg - specifies the point conversion form - * - possible values: compressed - * uncompressed (default) - * hybrid - * -param_enc arg - specifies the way the ec parameters are encoded - * in the asn1 der encoding - * possible values: named_curve (default) - * explicit - * -no_seed - if 'explicit' parameters are chosen do not use the seed - * -genkey - generate ec key - * -rand file - files to use for random number input - * -engine e - use engine e, possibly a hardware device - */ - -static int ecparam_print_var(BIO *, BIGNUM *, const char *, int, - unsigned char *); - -int MAIN(int, char **); - -int MAIN(int argc, char **argv) +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_CHECK, OPT_LIST_CURVES, OPT_NO_SEED, OPT_NOOUT, OPT_NAME, + OPT_CONV_FORM, OPT_PARAM_ENC, OPT_GENKEY, OPT_RAND, OPT_ENGINE +} OPTION_CHOICE; + +OPTIONS ecparam_options[] = { + {"help", OPT_HELP, '-', "Display this summary"}, + {"inform", OPT_INFORM, 'F', "Input format - default PEM (DER or PEM)"}, + {"outform", OPT_OUTFORM, 'F', "Output format - default PEM"}, + {"in", OPT_IN, '<', "Input file - default stdin"}, + {"out", OPT_OUT, '>', "Output file - default stdout"}, + {"text", OPT_TEXT, '-', "Print the ec parameters in text form"}, + {"C", OPT_C, '-', "Print a 'C' function creating the parameters"}, + {"check", OPT_CHECK, '-', "Validate the ec parameters"}, + {"list_curves", OPT_LIST_CURVES, '-', + "Prints a list of all curve 'short names'"}, + {"no_seed", OPT_NO_SEED, '-', + "If 'explicit' parameters are chosen do not use the seed"}, + {"noout", OPT_NOOUT, '-', "Do not print the ec parameter"}, + {"name", OPT_NAME, 's', + "Use the ec parameters with specified 'short name'"}, + {"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "}, + {"param_enc", OPT_PARAM_ENC, 's', + "Specifies the way the ec parameters are encoded"}, + {"genkey", OPT_GENKEY, '-', "Generate ec key"}, + {"rand", OPT_RAND, 's', "Files to use for random number input"}, +# ifndef OPENSSL_NO_ENGINE + {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, +# endif + {NULL} +}; + +OPT_PAIR forms[] = { + {"compressed", POINT_CONVERSION_COMPRESSED}, + {"uncompressed", POINT_CONVERSION_UNCOMPRESSED}, + {"hybrid", POINT_CONVERSION_HYBRID}, + {NULL} +}; + +OPT_PAIR encodings[] = { + {"named_curve", OPENSSL_EC_NAMED_CURVE}, + {"explicit", 0}, + {NULL} +}; + +int ecparam_main(int argc, char **argv) { + BIGNUM *ec_gen = NULL, *ec_order = NULL, *ec_cofactor = NULL; + BIGNUM *ec_p = NULL, *ec_a = NULL, *ec_b = NULL; + BIO *in = NULL, *out = NULL; EC_GROUP *group = NULL; point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED; - int new_form = 0; - int asn1_flag = OPENSSL_EC_NAMED_CURVE; - int new_asn1_flag = 0; char *curve_name = NULL, *inrand = NULL; - int list_curves = 0, no_seed = 0, check = 0, - badops = 0, text = 0, i, need_rand = 0, genkey = 0; - char *infile = NULL, *outfile = NULL, *prog; - BIO *in = NULL, *out = NULL; - int informat, outformat, noout = 0, C = 0, ret = 1; - char *engine = NULL; - - BIGNUM *ec_p = NULL, *ec_a = NULL, *ec_b = NULL, - *ec_gen = NULL, *ec_order = NULL, *ec_cofactor = NULL; + char *engine = NULL, *infile = NULL, *outfile = NULL, *prog; unsigned char *buffer = NULL; - - 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; - - 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) + OPTION_CHOICE o; + int asn1_flag = OPENSSL_EC_NAMED_CURVE, new_asn1_flag = 0; + int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0, C = 0, ret = + 1; + int list_curves = 0, no_seed = 0, check = 0, new_form = 0; + int text = 0, i, need_rand = 0, genkey = 0; + + prog = opt_init(argc, argv, ecparam_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(ecparam_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_TEXT: text = 1; - else if (strcmp(*argv, "-C") == 0) + break; + case OPT_C: C = 1; - else if (strcmp(*argv, "-check") == 0) + break; + case OPT_CHECK: check = 1; - else if (strcmp(*argv, "-name") == 0) { - if (--argc < 1) - goto bad; - curve_name = *(++argv); - } else if (strcmp(*argv, "-list_curves") == 0) + break; + case OPT_LIST_CURVES: list_curves = 1; - else if (strcmp(*argv, "-conv_form") == 0) { - if (--argc < 1) - goto bad; - ++argv; - new_form = 1; - if (strcmp(*argv, "compressed") == 0) - form = POINT_CONVERSION_COMPRESSED; - else if (strcmp(*argv, "uncompressed") == 0) - form = POINT_CONVERSION_UNCOMPRESSED; - else if (strcmp(*argv, "hybrid") == 0) - form = POINT_CONVERSION_HYBRID; - else - goto bad; - } else if (strcmp(*argv, "-param_enc") == 0) { - if (--argc < 1) - goto bad; - ++argv; - new_asn1_flag = 1; - if (strcmp(*argv, "named_curve") == 0) - asn1_flag = OPENSSL_EC_NAMED_CURVE; - else if (strcmp(*argv, "explicit") == 0) - asn1_flag = 0; - else - goto bad; - } else if (strcmp(*argv, "-no_seed") == 0) + break; + case OPT_NO_SEED: no_seed = 1; - else if (strcmp(*argv, "-noout") == 0) + break; + case OPT_NOOUT: noout = 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); + break; + case OPT_NAME: + curve_name = opt_arg(); + break; + case OPT_CONV_FORM: + if (!opt_pair(opt_arg(), forms, &new_form)) + goto opthelp; + form = new_form; + new_form = 1; + break; + case OPT_PARAM_ENC: + if (!opt_pair(opt_arg(), encodings, &asn1_flag)) + goto opthelp; + new_asn1_flag = 1; + break; + case OPT_GENKEY: + genkey = need_rand = 1; + break; + case OPT_RAND: + inrand = opt_arg(); need_rand = 1; - } else if (strcmp(*argv, "-engine") == 0) { - if (--argc < 1) - goto bad; - engine = *(++argv); - } else { - BIO_printf(bio_err, "unknown option %s\n", *argv); - badops = 1; + break; + case OPT_ENGINE: + engine = opt_arg(); break; } - argc--; - argv++; } + argc = opt_num_rest(); + argv = opt_rest(); - if (badops) { - bad: - BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog); - BIO_printf(bio_err, "where options are\n"); - BIO_printf(bio_err, " -inform arg input format - " - "default PEM (DER or PEM)\n"); - BIO_printf(bio_err, " -outform arg output format - " - "default PEM\n"); - BIO_printf(bio_err, " -in arg input file - " - "default stdin\n"); - BIO_printf(bio_err, " -out arg output file - " - "default stdout\n"); - BIO_printf(bio_err, " -noout do not print the " - "ec parameter\n"); - BIO_printf(bio_err, " -text print the ec " - "parameters in text form\n"); - BIO_printf(bio_err, " -check validate the ec " - "parameters\n"); - BIO_printf(bio_err, " -C print a 'C' " - "function creating the parameters\n"); - BIO_printf(bio_err, " -name arg use the " - "ec parameters with 'short name' name\n"); - BIO_printf(bio_err, " -list_curves prints a list of " - "all currently available curve 'short names'\n"); - BIO_printf(bio_err, " -conv_form arg specifies the " - "point conversion form \n"); - BIO_printf(bio_err, " possible values:" - " compressed\n"); - BIO_printf(bio_err, " " - " uncompressed (default)\n"); - BIO_printf(bio_err, " " - " hybrid\n"); - BIO_printf(bio_err, " -param_enc arg specifies the way" - " the ec parameters are encoded\n"); - BIO_printf(bio_err, " in the asn1 der " - "encoding\n"); - BIO_printf(bio_err, " possible values:" - " named_curve (default)\n"); - BIO_printf(bio_err, " " - " explicit\n"); - BIO_printf(bio_err, " -no_seed if 'explicit'" - " parameters are chosen do not" " use the seed\n"); - BIO_printf(bio_err, " -genkey generate ec" " key\n"); - BIO_printf(bio_err, " -rand file files to use for" - " random number input\n"); - BIO_printf(bio_err, " -engine e use engine e, " - "possibly a hardware device\n"); + in = bio_open_default(infile, RB(informat)); + if (in == NULL) 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); + out = bio_open_default(outfile, WB(outformat)); + if (out == 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); -# 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 - setup_engine(bio_err, engine, 0); + setup_engine(engine, 0); # endif if (list_curves) { @@ -385,15 +301,10 @@ int MAIN(int argc, char **argv) } EC_GROUP_set_asn1_flag(group, asn1_flag); EC_GROUP_set_point_conversion_form(group, form); - } else if (informat == FORMAT_ASN1) { + } else if (informat == FORMAT_ASN1) group = d2i_ECPKParameters_bio(in, NULL); - } else if (informat == FORMAT_PEM) { + else group = PEM_read_bio_ECPKParameters(in, NULL, NULL, NULL); - } else { - BIO_printf(bio_err, "bad input format specified\n"); - goto end; - } - if (group == NULL) { BIO_printf(bio_err, "unable to load elliptic curve parameters\n"); ERR_print_errors(bio_err); @@ -433,24 +344,25 @@ int MAIN(int argc, char **argv) int is_prime, len = 0; const EC_METHOD *meth = EC_GROUP_method_of(group); - if ((ec_p = BN_new()) == NULL || (ec_a = BN_new()) == NULL || - (ec_b = BN_new()) == NULL || (ec_gen = BN_new()) == NULL || - (ec_order = BN_new()) == NULL || - (ec_cofactor = BN_new()) == NULL) { + if ((ec_p = BN_new()) == NULL + || (ec_a = BN_new()) == NULL + || (ec_b = BN_new()) == NULL + || (ec_gen = BN_new()) == NULL + || (ec_order = BN_new()) == NULL + || (ec_cofactor = BN_new()) == NULL) { perror("OPENSSL_malloc"); goto end; } is_prime = (EC_METHOD_get_field_type(meth) == NID_X9_62_prime_field); - - if (is_prime) { - if (!EC_GROUP_get_curve_GFp(group, ec_p, ec_a, ec_b, NULL)) - goto end; - } else { - /* TODO */ + if (!is_prime) { + BIO_printf(bio_err, "Can only handle X9.62 prime fields\n"); goto end; } + if (!EC_GROUP_get_curve_GFp(group, ec_p, ec_a, ec_b, NULL)) + goto end; + if ((point = EC_GROUP_get0_generator(group)) == NULL) goto end; if (!EC_POINT_point2bn(group, point, @@ -487,77 +399,62 @@ int MAIN(int argc, char **argv) goto end; } - ecparam_print_var(out, ec_p, "ec_p", len, buffer); - ecparam_print_var(out, ec_a, "ec_a", len, buffer); - ecparam_print_var(out, ec_b, "ec_b", len, buffer); - ecparam_print_var(out, ec_gen, "ec_gen", len, buffer); - ecparam_print_var(out, ec_order, "ec_order", len, buffer); - ecparam_print_var(out, ec_cofactor, "ec_cofactor", len, buffer); - - BIO_printf(out, "\n\n"); - - BIO_printf(out, "EC_GROUP *get_ec_group_%d(void)\n\t{\n", len); - BIO_printf(out, "\tint ok=0;\n"); - BIO_printf(out, "\tEC_GROUP *group = NULL;\n"); - BIO_printf(out, "\tEC_POINT *point = NULL;\n"); - BIO_printf(out, "\tBIGNUM *tmp_1 = NULL, *tmp_2 = NULL, " - "*tmp_3 = NULL;\n\n"); - BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_p_%d, " - "sizeof(ec_p_%d), NULL)) == NULL)\n\t\t" - "goto err;\n", len, len); - BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_a_%d, " - "sizeof(ec_a_%d), NULL)) == NULL)\n\t\t" - "goto err;\n", len, len); - BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_b_%d, " - "sizeof(ec_b_%d), NULL)) == NULL)\n\t\t" - "goto err;\n", len, len); - if (is_prime) { - BIO_printf(out, "\tif ((group = EC_GROUP_new_curve_" - "GFp(tmp_1, tmp_2, tmp_3, NULL)) == NULL)" - "\n\t\tgoto err;\n\n"); - } else { - /* TODO */ - goto end; - } - BIO_printf(out, "\t/* build generator */\n"); - BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_gen_%d, " - "sizeof(ec_gen_%d), tmp_1)) == NULL)" - "\n\t\tgoto err;\n", len, len); - BIO_printf(out, "\tpoint = EC_POINT_bn2point(group, tmp_1, " - "NULL, NULL);\n"); - BIO_printf(out, "\tif (point == NULL)\n\t\tgoto err;\n"); - BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_order_%d, " - "sizeof(ec_order_%d), tmp_2)) == NULL)" - "\n\t\tgoto err;\n", len, len); - BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_cofactor_%d, " - "sizeof(ec_cofactor_%d), tmp_3)) == NULL)" - "\n\t\tgoto err;\n", len, len); - BIO_printf(out, "\tif (!EC_GROUP_set_generator(group, point," - " tmp_2, tmp_3))\n\t\tgoto err;\n"); - BIO_printf(out, "\n\tok=1;\n"); - BIO_printf(out, "err:\n"); - BIO_printf(out, "\tif (tmp_1)\n\t\tBN_free(tmp_1);\n"); - BIO_printf(out, "\tif (tmp_2)\n\t\tBN_free(tmp_2);\n"); - BIO_printf(out, "\tif (tmp_3)\n\t\tBN_free(tmp_3);\n"); - BIO_printf(out, "\tif (point)\n\t\tEC_POINT_free(point);\n"); - BIO_printf(out, "\tif (!ok)\n"); - BIO_printf(out, "\t\t{\n"); - BIO_printf(out, "\t\tEC_GROUP_free(group);\n"); - BIO_printf(out, "\t\tgroup = NULL;\n"); - BIO_printf(out, "\t\t}\n"); - BIO_printf(out, "\treturn(group);\n\t}\n"); + BIO_printf(out, "EC_GROUP *get_ec_group_%d(void)\n{\n", len); + print_bignum_var(out, ec_p, "ec_p", len, buffer); + print_bignum_var(out, ec_a, "ec_a", len, buffer); + print_bignum_var(out, ec_b, "ec_b", len, buffer); + print_bignum_var(out, ec_gen, "ec_gen", len, buffer); + print_bignum_var(out, ec_order, "ec_order", len, buffer); + print_bignum_var(out, ec_cofactor, "ec_cofactor", len, buffer); + BIO_printf(out, " int ok = 0;\n" + " EC_GROUP *group = NULL;\n" + " EC_POINT *point = NULL;\n" + " BIGNUM *tmp_1 = NULL;\n" + " BIGNUM *tmp_2 = NULL;\n" + " BIGNUM *tmp_3 = NULL;\n" + "\n"); + + BIO_printf(out, " if ((tmp_1 = BN_bin2bn(ec_p_%d, sizeof (ec_p_%d), NULL)) == NULL)\n" + " goto err;\n", len, len); + BIO_printf(out, " if ((tmp_2 = BN_bin2bn(ec_a_%d, sizeof (ec_a_%d), NULL)) == NULL)\n" + " goto err;\n", len, len); + BIO_printf(out, " if ((tmp_3 = BN_bin2bn(ec_b_%d, sizeof (ec_b_%d), NULL)) == NULL)\n" + " goto err;\n", len, len); + BIO_printf(out, " if ((group = EC_GROUP_new_curve_GFp(tmp_1, tmp_2, tmp_3, NULL)) == NULL)\n" + " goto err;\n" + "\n"); + BIO_printf(out, " /* build generator */\n"); + BIO_printf(out, " if ((tmp_1 = BN_bin2bn(ec_gen_%d, sizeof (ec_gen_%d), tmp_1)) == NULL)\n" + " goto err;\n", len, len); + BIO_printf(out, " point = EC_POINT_bn2point(group, tmp_1, NULL, NULL);\n"); + BIO_printf(out, " if (point == NULL)\n" + " goto err;\n"); + BIO_printf(out, " if ((tmp_2 = BN_bin2bn(ec_order_%d, sizeof (ec_order_%d), tmp_2)) == NULL)\n" + " goto err;\n", len, len); + BIO_printf(out, " if ((tmp_3 = BN_bin2bn(ec_cofactor_%d, sizeof (ec_cofactor_%d), tmp_3)) == NULL)\n" + " goto err;\n", len, len); + BIO_printf(out, " if (!EC_GROUP_set_generator(group, point, tmp_2, tmp_3))\n" + " goto err;\n" + "ok = 1;" + "\n"); + BIO_printf(out, "err:\n" + " BN_free(tmp_1);\n" + " BN_free(tmp_2);\n" + " BN_free(tmp_3);\n" + " EC_POINT_free(point);\n" + " if (!ok) {\n" + " EC_GROUP_free(group);\n" + " return NULL;\n" + " }\n" + " return (group);\n" + "}\n"); } if (!noout) { if (outformat == FORMAT_ASN1) i = i2d_ECPKParameters_bio(out, group); - else if (outformat == FORMAT_PEM) + else i = PEM_write_bio_ECPKParameters(out, group); - else { - BIO_printf(bio_err, "bad output format specified for" - " outfile\n"); - goto end; - } if (!i) { BIO_printf(bio_err, "unable to write elliptic " "curve parameters\n"); @@ -567,7 +464,7 @@ int MAIN(int argc, char **argv) } if (need_rand) { - app_RAND_load_file(NULL, bio_err, (inrand != NULL)); + 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)); @@ -590,20 +487,14 @@ int MAIN(int argc, char **argv) } if (outformat == FORMAT_ASN1) i = i2d_ECPrivateKey_bio(out, eckey); - else if (outformat == FORMAT_PEM) + else i = PEM_write_bio_ECPrivateKey(out, eckey, NULL, NULL, 0, NULL, NULL); - else { - BIO_printf(bio_err, "bad output format specified " - "for outfile\n"); - EC_KEY_free(eckey); - goto end; - } EC_KEY_free(eckey); } if (need_rand) - app_RAND_write_file(NULL, bio_err); + app_RAND_write_file(NULL); ret = 0; end: @@ -624,32 +515,9 @@ int MAIN(int argc, char **argv) BIO_free(in); BIO_free_all(out); EC_GROUP_free(group); - apps_shutdown(); - OPENSSL_EXIT(ret); + return (ret); } -static int ecparam_print_var(BIO *out, BIGNUM *in, const char *var, - int len, unsigned char *buffer) -{ - BIO_printf(out, "static unsigned char %s_%d[] = {", var, len); - if (BN_is_zero(in)) - BIO_printf(out, "\n\t0x00"); - else { - int i, l; - - l = BN_bn2bin(in, buffer); - for (i = 0; i < l - 1; i++) { - if ((i % 12) == 0) - BIO_printf(out, "\n\t"); - BIO_printf(out, "0x%02X,", buffer[i]); - } - if ((i % 12) == 0) - BIO_printf(out, "\n\t"); - BIO_printf(out, "0x%02X", buffer[i]); - } - BIO_printf(out, "\n\t};\n\n"); - return 1; -} #else /* !OPENSSL_NO_EC */ # if PEDANTIC |