int tls_config_set_ecdhecurves(struct tls_config *config, const char *curves) { int *curves_list = NULL, *curves_new; size_t curves_num = 0; char *cs = NULL; char *p, *q; int rv = -1; int nid; free(config->ecdhecurves); config->ecdhecurves = NULL; config->ecdhecurves_len = 0; if (curves == NULL || strcasecmp(curves, "default") == 0) curves = TLS_ECDHE_CURVES; if ((cs = strdup(curves)) == NULL) { tls_config_set_errorx(config, "out of memory"); goto err; } q = cs; while ((p = strsep(&q, ",:")) != NULL) { while (*p == ' ' || *p == '\t') p++; nid = OBJ_sn2nid(p); if (nid == NID_undef) nid = OBJ_ln2nid(p); if (nid == NID_undef) nid = EC_curve_nist2nid(p); if (nid == NID_undef) { tls_config_set_errorx(config, "invalid ecdhe curve '%s'", p); goto err; } if ((curves_new = reallocarray(curves_list, curves_num + 1, sizeof(int))) == NULL) { tls_config_set_errorx(config, "out of memory"); goto err; } curves_list = curves_new; curves_list[curves_num] = nid; curves_num++; } config->ecdhecurves = curves_list; config->ecdhecurves_len = curves_num; curves_list = NULL; rv = 0; err: free(cs); free(curves_list); return (rv); }
/* ECDH temporary parameters */ static int cmd_ECDHParameters(SSL_CONF_CTX *cctx, const char *value) { int rv = 1; EC_KEY *ecdh; int nid; /* Ignore values supported by 1.0.2 for the automatic selection */ if ((cctx->flags & SSL_CONF_FLAG_FILE) && strcasecmp(value, "+automatic") == 0) return 1; if ((cctx->flags & SSL_CONF_FLAG_CMDLINE) && strcmp(value, "auto") == 0) return 1; nid = EC_curve_nist2nid(value); if (nid == NID_undef) nid = OBJ_sn2nid(value); if (nid == 0) return 0; ecdh = EC_KEY_new_by_curve_name(nid); if (!ecdh) return 0; if (cctx->ctx) rv = SSL_CTX_set_tmp_ecdh(cctx->ctx, ecdh); else if (cctx->ssl) rv = SSL_set_tmp_ecdh(cctx->ssl, ecdh); EC_KEY_free(ecdh); return rv > 0; }
/* ECDH temporary parameters */ static int cmd_ECDHParameters(SSL_CONF_CTX *cctx, const char *value) { int onoff = -1, rv = 1; if (!(cctx->flags & SSL_CONF_FLAG_SERVER)) return -2; if (cctx->flags & SSL_CONF_FLAG_FILE) { if (*value == '+') { onoff = 1; value++; } if (*value == '-') { onoff = 0; value++; } if (!strcasecmp(value, "automatic")) { if (onoff == -1) onoff = 1; } else if (onoff != -1) return 0; } else if (cctx->flags & SSL_CONF_FLAG_CMDLINE) { if (!strcmp(value, "auto")) onoff = 1; } if (onoff != -1) { if (cctx->ctx) rv = SSL_CTX_set_ecdh_auto(cctx->ctx, onoff); else if (cctx->ssl) rv = SSL_set_ecdh_auto(cctx->ssl, onoff); } else { EC_KEY *ecdh; int nid; nid = EC_curve_nist2nid(value); if (nid == NID_undef) nid = OBJ_sn2nid(value); if (nid == 0) return 0; ecdh = EC_KEY_new_by_curve_name(nid); if (!ecdh) return 0; if (cctx->ctx) rv = SSL_CTX_set_tmp_ecdh(cctx->ctx, ecdh); else if (cctx->ssl) rv = SSL_set_tmp_ecdh(cctx->ssl, ecdh); EC_KEY_free(ecdh); } return rv > 0; }
static int pkey_ec_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, const char *value) { if (strcmp(type, "ec_paramgen_curve") == 0) { int nid; nid = EC_curve_nist2nid(value); if (nid == NID_undef) nid = OBJ_sn2nid(value); if (nid == NID_undef) nid = OBJ_ln2nid(value); if (nid == NID_undef) { ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_CURVE); return 0; } return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid); #ifndef OPENSSL_NO_SM2 } else if (!strcmp(type, "ec_scheme")) { int scheme; if (!strcmp(value, "secg")) scheme = NID_secg_scheme; else if (!strcmp(value, "sm2")) scheme = NID_sm_scheme; else return -2; return EVP_PKEY_CTX_set_ec_scheme(ctx, scheme); } else if (!strcmp(type, "signer_id")) { return EVP_PKEY_CTX_set_signer_id(ctx, value); } else if (!strcmp(type, "ec_encrypt_param")) { int encrypt_param; if (!(encrypt_param = OBJ_txt2nid(value))) { ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_EC_ENCRYPT_PARAM); return 0; } return EVP_PKEY_CTX_set_ec_encrypt_param(ctx, encrypt_param); #endif } else if (strcmp(type, "ec_param_enc") == 0) { int param_enc; if (strcmp(value, "explicit") == 0) param_enc = 0; else if (strcmp(value, "named_curve") == 0) param_enc = OPENSSL_EC_NAMED_CURVE; else return -2; return EVP_PKEY_CTX_set_ec_param_enc(ctx, param_enc); } else if (strcmp(type, "ecdh_kdf_md") == 0) { const EVP_MD *md; if ((md = EVP_get_digestbyname(value)) == NULL) { ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_DIGEST); return 0; } return EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, md); } else if (strcmp(type, "ecdh_cofactor_mode") == 0) { int co_mode; co_mode = atoi(value); return EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, co_mode); } return -2; }
int tls1_set_groups_list(uint16_t **out_group_ids, size_t *out_group_ids_len, const char *groups) { uint16_t *new_group_ids, *group_ids = NULL; size_t ngroups = 0; char *gs, *p, *q; int nid; if ((gs = strdup(groups)) == NULL) return 0; q = gs; while ((p = strsep(&q, ":")) != NULL) { nid = OBJ_sn2nid(p); if (nid == NID_undef) nid = OBJ_ln2nid(p); if (nid == NID_undef) nid = EC_curve_nist2nid(p); if (nid == NID_undef) goto err; if ((new_group_ids = reallocarray(group_ids, ngroups + 1, sizeof(uint16_t))) == NULL) goto err; group_ids = new_group_ids; group_ids[ngroups] = tls1_ec_nid2curve_id(nid); if (group_ids[ngroups] == 0) goto err; ngroups++; } free(gs); free(*out_group_ids); *out_group_ids = group_ids; *out_group_ids_len = ngroups; return 1; err: free(gs); free(group_ids); return 0; }
static int pkey_ec_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, const char *value) { if (strcmp(type, "ec_paramgen_curve") == 0) { int nid; nid = EC_curve_nist2nid(value); if (nid == NID_undef) nid = OBJ_sn2nid(value); if (nid == NID_undef) nid = OBJ_ln2nid(value); if (nid == NID_undef) { ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_CURVE); return 0; } return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid); } else if (strcmp(type, "ec_param_enc") == 0) { int param_enc; if (strcmp(value, "explicit") == 0) param_enc = 0; else if (strcmp(value, "named_curve") == 0) param_enc = OPENSSL_EC_NAMED_CURVE; else return -2; return EVP_PKEY_CTX_set_ec_param_enc(ctx, param_enc); } else if (strcmp(type, "ecdh_kdf_md") == 0) { const EVP_MD *md; md = EVP_get_digestbyname(value); if (md == NULL) { ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_DIGEST); return 0; } return EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, md); } else if (strcmp(type, "ecdh_cofactor_mode") == 0) { uint8_t error; int co_mode; co_mode = safe_atoi(value, INT_MIN, INT_MAX, &error); if (error) return 0; /* TODO(KC): Is this the correct error to return here? */ return EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, co_mode); } return -2; }
/* ECDH temporary parameters */ static int cmd_ECDHParameters(SSL_CONF_CTX *cctx, const char *value) { int rv = 1; EC_KEY *ecdh; int nid; nid = EC_curve_nist2nid(value); if (nid == NID_undef) nid = OBJ_sn2nid(value); if (nid == 0) return 0; ecdh = EC_KEY_new_by_curve_name(nid); if (!ecdh) return 0; if (cctx->ctx) rv = SSL_CTX_set_tmp_ecdh(cctx->ctx, ecdh); else if (cctx->ssl) rv = SSL_set_tmp_ecdh(cctx->ssl, ecdh); EC_KEY_free(ecdh); return rv > 0; }
static int pkey_ec_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, const char *value) { if (!strcmp(type, "ec_paramgen_curve")) { int nid; nid = EC_curve_nist2nid(value); if (nid == NID_undef) nid = OBJ_sn2nid(value); if (nid == NID_undef) nid = OBJ_ln2nid(value); if (nid == NID_undef) { ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_CURVE); return 0; } return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid); } else if (!strcmp(type, "ec_param_enc")) { int param_enc; if (!strcmp(value, "explicit")) param_enc = 0; else if (!strcmp(value, "named_curve")) param_enc = OPENSSL_EC_NAMED_CURVE; else return -2; return EVP_PKEY_CTX_set_ec_param_enc(ctx, param_enc); } else if (!strcmp(type, "ecdh_kdf_md")) { const EVP_MD *md; if (!(md = EVP_get_digestbyname(value))) { ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_DIGEST); return 0; } return EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, md); } else if (!strcmp(type, "ecdh_cofactor_mode")) { int co_mode; co_mode = atoi(value); return EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, co_mode); } return -2; }
__owur static int parse_expected_key_type(int *ptype, const char *value) { int nid; const EVP_PKEY_ASN1_METHOD *ameth; if (value == NULL) return 0; ameth = EVP_PKEY_asn1_find_str(NULL, value, -1); if (ameth != NULL) EVP_PKEY_asn1_get0_info(&nid, NULL, NULL, NULL, NULL, ameth); else nid = OBJ_sn2nid(value); if (nid == NID_undef) nid = OBJ_ln2nid(value); #ifndef OPENSSL_NO_EC if (nid == NID_undef) nid = EC_curve_nist2nid(value); #endif if (nid == NID_undef) return 0; *ptype = nid; return 1; }
static int pkey_ec_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, const char *value) { if (!strcmp(type, "ec_paramgen_curve")) { int nid; nid = EC_curve_nist2nid(value); if (nid == NID_undef) nid = OBJ_sn2nid(value); if (nid == NID_undef) nid = OBJ_ln2nid(value); if (nid == NID_undef) { ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_CURVE); return 0; } printf("curve = %s\n", value); return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid); } else if (!strcmp(type, "ec_param_enc")) { int param_enc; if (!strcmp(value, "explicit")) param_enc = 0; else if (!strcmp(value, "named_curve")) param_enc = OPENSSL_EC_NAMED_CURVE; else return -2; return EVP_PKEY_CTX_set_ec_param_enc(ctx, param_enc); #ifndef OPENSSL_NO_GMSSL } else if (!strcmp(type, "ec_sign_algor")) { int sign_type; if (!strcmp(value, "ecdsa")) sign_type = NID_secg_scheme; else if (!strcmp(value, "sm2")) sign_type = NID_sm_scheme; else return -2; return EVP_PKEY_CTX_set_ec_sign_type(ctx, sign_type); } else if (!strcmp(type, "ec_encrypt_algor")) { int enc_type; if (!strcmp(value, "ecies")) enc_type = NID_secg_scheme; else if (!strcmp(value, "sm2")) enc_type = NID_sm_scheme; else return -2; return EVP_PKEY_CTX_set_ec_enc_type(ctx, enc_type); } else if (!strcmp(type, "ec_derive_algor")) { int dh_type; if (!strcmp(value, "ecdh")) dh_type = NID_secg_scheme; else if (!strcmp(value, "sm2")) dh_type = NID_sm_scheme; else return -2; return EVP_PKEY_CTX_set_ec_dh_type(ctx, dh_type); #endif } else if (!strcmp(type, "ecdh_kdf_md")) { const EVP_MD *md; if (!(md = EVP_get_digestbyname(value))) { ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_DIGEST); return 0; } return EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, md); } else if (!strcmp(type, "ecdh_cofactor_mode")) { int co_mode; co_mode = atoi(value); return EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, co_mode); } return -2; }
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; char *curve_name = NULL, *inrand = NULL; char *infile = NULL, *outfile = NULL, *prog; unsigned char *buffer = NULL; 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; break; case OPT_C: C = 1; break; case OPT_CHECK: check = 1; break; case OPT_LIST_CURVES: list_curves = 1; break; case OPT_NO_SEED: no_seed = 1; break; case OPT_NOOUT: noout = 1; 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; break; case OPT_ENGINE: (void)setup_engine(opt_arg(), 0); break; } } argc = opt_num_rest(); argv = opt_rest(); in = bio_open_default(infile, RB(informat)); if (in == NULL) goto end; out = bio_open_default(outfile, WB(outformat)); if (out == NULL) goto end; if (list_curves) { EC_builtin_curve *curves = NULL; size_t crv_len = EC_get_builtin_curves(NULL, 0); size_t n; curves = app_malloc((int)sizeof(*curves) * crv_len, "list curves"); if (!EC_get_builtin_curves(curves, crv_len)) { OPENSSL_free(curves); goto end; } for (n = 0; n < crv_len; n++) { const char *comment; const char *sname; comment = curves[n].comment; sname = OBJ_nid2sn(curves[n].nid); if (comment == NULL) comment = "CURVE DESCRIPTION NOT AVAILABLE"; if (sname == NULL) sname = ""; BIO_printf(out, " %-10s: ", sname); BIO_printf(out, "%s\n", comment); } OPENSSL_free(curves); ret = 0; goto end; } if (curve_name != NULL) { int nid; /* * workaround for the SECG curve names secp192r1 and secp256r1 (which * are the same as the curves prime192v1 and prime256v1 defined in * X9.62) */ if (strcmp(curve_name, "secp192r1") == 0) { BIO_printf(bio_err, "using curve name prime192v1 " "instead of secp192r1\n"); nid = NID_X9_62_prime192v1; } else if (strcmp(curve_name, "secp256r1") == 0) { BIO_printf(bio_err, "using curve name prime256v1 " "instead of secp256r1\n"); nid = NID_X9_62_prime256v1; } else nid = OBJ_sn2nid(curve_name); if (nid == 0) nid = EC_curve_nist2nid(curve_name); if (nid == 0) { BIO_printf(bio_err, "unknown curve name (%s)\n", curve_name); goto end; } group = EC_GROUP_new_by_curve_name(nid); if (group == NULL) { BIO_printf(bio_err, "unable to create curve (%s)\n", curve_name); goto end; } EC_GROUP_set_asn1_flag(group, asn1_flag); EC_GROUP_set_point_conversion_form(group, form); } else if (informat == FORMAT_ASN1) group = d2i_ECPKParameters_bio(in, NULL); else group = PEM_read_bio_ECPKParameters(in, NULL, NULL, NULL); if (group == NULL) { BIO_printf(bio_err, "unable to load elliptic curve parameters\n"); ERR_print_errors(bio_err); goto end; } if (new_form) EC_GROUP_set_point_conversion_form(group, form); if (new_asn1_flag) EC_GROUP_set_asn1_flag(group, asn1_flag); if (no_seed) { EC_GROUP_set_seed(group, NULL, 0); } if (text) { if (!ECPKParameters_print(out, group, 0)) goto end; } if (check) { if (group == NULL) BIO_printf(bio_err, "no elliptic curve parameters\n"); BIO_printf(bio_err, "checking elliptic curve parameters: "); if (!EC_GROUP_check(group, NULL)) { BIO_printf(bio_err, "failed\n"); ERR_print_errors(bio_err); } else BIO_printf(bio_err, "ok\n"); } if (C) { size_t buf_len = 0, tmp_len = 0; const EC_POINT *point; 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) { perror("Can't allocate BN"); goto end; } is_prime = (EC_METHOD_get_field_type(meth) == NID_X9_62_prime_field); 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, EC_GROUP_get_point_conversion_form(group), ec_gen, NULL)) goto end; if (!EC_GROUP_get_order(group, ec_order, NULL)) goto end; if (!EC_GROUP_get_cofactor(group, ec_cofactor, NULL)) goto end; if (!ec_p || !ec_a || !ec_b || !ec_gen || !ec_order || !ec_cofactor) goto end; len = BN_num_bits(ec_order); if ((tmp_len = (size_t)BN_num_bytes(ec_p)) > buf_len) buf_len = tmp_len; if ((tmp_len = (size_t)BN_num_bytes(ec_a)) > buf_len) buf_len = tmp_len; if ((tmp_len = (size_t)BN_num_bytes(ec_b)) > buf_len) buf_len = tmp_len; if ((tmp_len = (size_t)BN_num_bytes(ec_gen)) > buf_len) buf_len = tmp_len; if ((tmp_len = (size_t)BN_num_bytes(ec_order)) > buf_len) buf_len = tmp_len; if ((tmp_len = (size_t)BN_num_bytes(ec_cofactor)) > buf_len) buf_len = tmp_len; buffer = app_malloc(buf_len, "BN buffer"); 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 i = PEM_write_bio_ECPKParameters(out, group); if (!i) { BIO_printf(bio_err, "unable to write elliptic " "curve 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 (genkey) { EC_KEY *eckey = EC_KEY_new(); if (eckey == NULL) goto end; assert(need_rand); if (EC_KEY_set_group(eckey, group) == 0) goto end; if (!EC_KEY_generate_key(eckey)) { EC_KEY_free(eckey); goto end; } if (outformat == FORMAT_ASN1) i = i2d_ECPrivateKey_bio(out, eckey); else i = PEM_write_bio_ECPrivateKey(out, eckey, NULL, NULL, 0, NULL, NULL); EC_KEY_free(eckey); } if (need_rand) app_RAND_write_file(NULL); ret = 0; end: BN_free(ec_p); BN_free(ec_a); BN_free(ec_b); BN_free(ec_gen); BN_free(ec_order); BN_free(ec_cofactor); OPENSSL_free(buffer); BIO_free(in); BIO_free_all(out); EC_GROUP_free(group); return (ret); }
int MAIN(int argc, char **argv) { 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; 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) text = 1; else if (strcmp(*argv, "-C") == 0) C = 1; else if (strcmp(*argv, "-check") == 0) check = 1; else if (strcmp(*argv, "-name") == 0) { if (--argc < 1) goto bad; curve_name = *(++argv); } else if (strcmp(*argv, "-list_curves") == 0) 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) no_seed = 1; else if (strcmp(*argv, "-noout") == 0) 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); 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; } argc--; argv++; } 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"); 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 setup_engine(bio_err, engine, 0); # endif if (list_curves) { EC_builtin_curve *curves = NULL; size_t crv_len = 0; size_t n = 0; crv_len = EC_get_builtin_curves(NULL, 0); curves = OPENSSL_malloc((int)(sizeof(EC_builtin_curve) * crv_len)); if (curves == NULL) goto end; if (!EC_get_builtin_curves(curves, crv_len)) { OPENSSL_free(curves); goto end; } for (n = 0; n < crv_len; n++) { const char *comment; const char *sname; comment = curves[n].comment; sname = OBJ_nid2sn(curves[n].nid); if (comment == NULL) comment = "CURVE DESCRIPTION NOT AVAILABLE"; if (sname == NULL) sname = ""; BIO_printf(out, " %-10s: ", sname); BIO_printf(out, "%s\n", comment); } OPENSSL_free(curves); ret = 0; goto end; } if (curve_name != NULL) { int nid; /* * workaround for the SECG curve names secp192r1 and secp256r1 (which * are the same as the curves prime192v1 and prime256v1 defined in * X9.62) */ if (!strcmp(curve_name, "secp192r1")) { BIO_printf(bio_err, "using curve name prime192v1 " "instead of secp192r1\n"); nid = NID_X9_62_prime192v1; } else if (!strcmp(curve_name, "secp256r1")) { BIO_printf(bio_err, "using curve name prime256v1 " "instead of secp256r1\n"); nid = NID_X9_62_prime256v1; } else nid = OBJ_sn2nid(curve_name); if (nid == 0) nid = EC_curve_nist2nid(curve_name); if (nid == 0) { BIO_printf(bio_err, "unknown curve name (%s)\n", curve_name); goto end; } group = EC_GROUP_new_by_curve_name(nid); if (group == NULL) { BIO_printf(bio_err, "unable to create curve (%s)\n", curve_name); goto end; } EC_GROUP_set_asn1_flag(group, asn1_flag); EC_GROUP_set_point_conversion_form(group, form); } else if (informat == FORMAT_ASN1) { group = d2i_ECPKParameters_bio(in, NULL); } else if (informat == FORMAT_PEM) { 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); goto end; } if (new_form) EC_GROUP_set_point_conversion_form(group, form); if (new_asn1_flag) EC_GROUP_set_asn1_flag(group, asn1_flag); if (no_seed) { EC_GROUP_set_seed(group, NULL, 0); } if (text) { if (!ECPKParameters_print(out, group, 0)) goto end; } if (check) { BIO_printf(bio_err, "checking elliptic curve parameters: "); if (!EC_GROUP_check(group, NULL)) { BIO_printf(bio_err, "failed\n"); ERR_print_errors(bio_err); goto end; } BIO_printf(bio_err, "ok\n"); } if (C) { size_t buf_len = 0, tmp_len = 0; const EC_POINT *point; 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) { 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 */ goto end; } if ((point = EC_GROUP_get0_generator(group)) == NULL) goto end; if (!EC_POINT_point2bn(group, point, EC_GROUP_get_point_conversion_form(group), ec_gen, NULL)) goto end; if (!EC_GROUP_get_order(group, ec_order, NULL)) goto end; if (!EC_GROUP_get_cofactor(group, ec_cofactor, NULL)) goto end; if (!ec_p || !ec_a || !ec_b || !ec_gen || !ec_order || !ec_cofactor) goto end; len = BN_num_bits(ec_order); if ((tmp_len = (size_t)BN_num_bytes(ec_p)) > buf_len) buf_len = tmp_len; if ((tmp_len = (size_t)BN_num_bytes(ec_a)) > buf_len) buf_len = tmp_len; if ((tmp_len = (size_t)BN_num_bytes(ec_b)) > buf_len) buf_len = tmp_len; if ((tmp_len = (size_t)BN_num_bytes(ec_gen)) > buf_len) buf_len = tmp_len; if ((tmp_len = (size_t)BN_num_bytes(ec_order)) > buf_len) buf_len = tmp_len; if ((tmp_len = (size_t)BN_num_bytes(ec_cofactor)) > buf_len) buf_len = tmp_len; buffer = (unsigned char *)OPENSSL_malloc(buf_len); if (buffer == NULL) { perror("OPENSSL_malloc"); 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"); } if (!noout) { if (outformat == FORMAT_ASN1) i = i2d_ECPKParameters_bio(out, group); else if (outformat == FORMAT_PEM) 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"); ERR_print_errors(bio_err); 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 (genkey) { EC_KEY *eckey = EC_KEY_new(); if (eckey == NULL) goto end; assert(need_rand); if (EC_KEY_set_group(eckey, group) == 0) goto end; if (!EC_KEY_generate_key(eckey)) { EC_KEY_free(eckey); goto end; } if (outformat == FORMAT_ASN1) i = i2d_ECPrivateKey_bio(out, eckey); else if (outformat == FORMAT_PEM) 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); ret = 0; end: if (ec_p) BN_free(ec_p); if (ec_a) BN_free(ec_a); if (ec_b) BN_free(ec_b); if (ec_gen) BN_free(ec_gen); if (ec_order) BN_free(ec_order); if (ec_cofactor) BN_free(ec_cofactor); if (buffer) OPENSSL_free(buffer); if (in != NULL) BIO_free(in); if (out != NULL) BIO_free_all(out); if (group != NULL) EC_GROUP_free(group); apps_shutdown(); OPENSSL_EXIT(ret); }