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apps/ecparam.c
/* | /* | ||||
* Copyright 2002-2020 The OpenSSL Project Authors. All Rights Reserved. | * Copyright 2002-2022 The OpenSSL Project Authors. All Rights Reserved. | ||||
* Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved | * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved | ||||
* | * | ||||
* Licensed under the OpenSSL license (the "License"). You may not use | * Licensed under the Apache License 2.0 (the "License"). You may not use | ||||
* this file except in compliance with the License. You can obtain a copy | * this file except in compliance with the License. You can obtain a copy | ||||
* in the file LICENSE in the source distribution or at | * in the file LICENSE in the source distribution or at | ||||
* https://www.openssl.org/source/license.html | * https://www.openssl.org/source/license.html | ||||
*/ | */ | ||||
#include <openssl/opensslconf.h> | |||||
#include <stdio.h> | |||||
#include <stdlib.h> | |||||
#include <time.h> | |||||
#include <string.h> | #include <string.h> | ||||
#include <openssl/opensslconf.h> | |||||
#include <openssl/evp.h> | |||||
#include <openssl/encoder.h> | |||||
#include <openssl/decoder.h> | |||||
#include <openssl/core_names.h> | |||||
#include <openssl/core_dispatch.h> | |||||
#include <openssl/params.h> | |||||
#include <openssl/err.h> | |||||
#include "apps.h" | #include "apps.h" | ||||
#include "progs.h" | #include "progs.h" | ||||
#include <openssl/bio.h> | #include "ec_common.h" | ||||
#include <openssl/err.h> | |||||
#include <openssl/bn.h> | |||||
#include <openssl/ec.h> | |||||
#include <openssl/x509.h> | |||||
#include <openssl/pem.h> | |||||
typedef enum OPTION_choice { | typedef enum OPTION_choice { | ||||
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, | OPT_COMMON, | ||||
OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_TEXT, OPT_C, | OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_TEXT, | ||||
OPT_CHECK, OPT_LIST_CURVES, OPT_NO_SEED, OPT_NOOUT, OPT_NAME, | OPT_CHECK, OPT_LIST_CURVES, OPT_NO_SEED, OPT_NOOUT, OPT_NAME, | ||||
OPT_CONV_FORM, OPT_PARAM_ENC, OPT_GENKEY, OPT_ENGINE, | OPT_CONV_FORM, OPT_PARAM_ENC, OPT_GENKEY, OPT_ENGINE, OPT_CHECK_NAMED, | ||||
OPT_R_ENUM | OPT_R_ENUM, OPT_PROV_ENUM | ||||
} OPTION_CHOICE; | } OPTION_CHOICE; | ||||
const OPTIONS ecparam_options[] = { | const OPTIONS ecparam_options[] = { | ||||
OPT_SECTION("General"), | |||||
{"help", OPT_HELP, '-', "Display this summary"}, | {"help", OPT_HELP, '-', "Display this summary"}, | ||||
{"inform", OPT_INFORM, 'F', "Input format - default PEM (DER or PEM)"}, | {"list_curves", OPT_LIST_CURVES, '-', | ||||
{"outform", OPT_OUTFORM, 'F', "Output format - default PEM"}, | "Prints a list of all curve 'short names'"}, | ||||
#ifndef OPENSSL_NO_ENGINE | |||||
{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, | |||||
#endif | |||||
{"genkey", OPT_GENKEY, '-', "Generate ec key"}, | |||||
{"in", OPT_IN, '<', "Input file - default stdin"}, | {"in", OPT_IN, '<', "Input file - default stdin"}, | ||||
{"inform", OPT_INFORM, 'F', "Input format - default PEM (DER or PEM)"}, | |||||
{"out", OPT_OUT, '>', "Output file - default stdout"}, | {"out", OPT_OUT, '>', "Output file - default stdout"}, | ||||
{"outform", OPT_OUTFORM, 'F', "Output format - default PEM"}, | |||||
OPT_SECTION("Output"), | |||||
{"text", OPT_TEXT, '-', "Print the ec parameters in text form"}, | {"text", OPT_TEXT, '-', "Print the ec parameters in text form"}, | ||||
{"C", OPT_C, '-', "Print a 'C' function creating the parameters"}, | {"noout", OPT_NOOUT, '-', "Do not print the ec parameter"}, | ||||
{"param_enc", OPT_PARAM_ENC, 's', | |||||
"Specifies the way the ec parameters are encoded"}, | |||||
OPT_SECTION("Parameter"), | |||||
{"check", OPT_CHECK, '-', "Validate the ec parameters"}, | {"check", OPT_CHECK, '-', "Validate the ec parameters"}, | ||||
{"list_curves", OPT_LIST_CURVES, '-', | {"check_named", OPT_CHECK_NAMED, '-', | ||||
"Prints a list of all curve 'short names'"}, | "Check that named EC curve parameters have not been modified"}, | ||||
{"no_seed", OPT_NO_SEED, '-', | {"no_seed", OPT_NO_SEED, '-', | ||||
"If 'explicit' parameters are chosen do not use the seed"}, | "If 'explicit' parameters are chosen do not use the seed"}, | ||||
{"noout", OPT_NOOUT, '-', "Do not print the ec parameter"}, | |||||
{"name", OPT_NAME, 's', | {"name", OPT_NAME, 's', | ||||
"Use the ec parameters with specified 'short name'"}, | "Use the ec parameters with specified 'short name'"}, | ||||
{"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "}, | {"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"}, | |||||
OPT_R_OPTIONS, | OPT_R_OPTIONS, | ||||
#ifndef OPENSSL_NO_ENGINE | OPT_PROV_OPTIONS, | ||||
{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, | |||||
#endif | |||||
{NULL} | {NULL} | ||||
}; | }; | ||||
static OPT_PAIR forms[] = { | static int list_builtin_curves(BIO *out) | ||||
{"compressed", POINT_CONVERSION_COMPRESSED}, | { | ||||
{"uncompressed", POINT_CONVERSION_UNCOMPRESSED}, | int ret = 0; | ||||
{"hybrid", POINT_CONVERSION_HYBRID}, | EC_builtin_curve *curves = NULL; | ||||
{NULL} | size_t n, crv_len = EC_get_builtin_curves(NULL, 0); | ||||
}; | |||||
static OPT_PAIR encodings[] = { | curves = app_malloc((int)sizeof(*curves) * crv_len, "list curves"); | ||||
{"named_curve", OPENSSL_EC_NAMED_CURVE}, | if (!EC_get_builtin_curves(curves, crv_len)) | ||||
{"explicit", 0}, | goto end; | ||||
{NULL} | |||||
}; | |||||
for (n = 0; n < crv_len; n++) { | |||||
const char *comment = curves[n].comment; | |||||
const char *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); | |||||
} | |||||
ret = 1; | |||||
end: | |||||
OPENSSL_free(curves); | |||||
return ret; | |||||
} | |||||
int ecparam_main(int argc, char **argv) | int ecparam_main(int argc, char **argv) | ||||
{ | { | ||||
EVP_PKEY_CTX *gctx_params = NULL, *gctx_key = NULL, *pctx = NULL; | |||||
EVP_PKEY *params_key = NULL, *key = NULL; | |||||
OSSL_ENCODER_CTX *ectx_key = NULL, *ectx_params = NULL; | |||||
OSSL_DECODER_CTX *dctx_params = NULL; | |||||
ENGINE *e = NULL; | ENGINE *e = NULL; | ||||
BIGNUM *ec_gen = NULL, *ec_order = NULL, *ec_cofactor = NULL; | BIO *out = 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; | char *curve_name = NULL; | ||||
char *asn1_encoding = NULL; | |||||
char *point_format = NULL; | |||||
char *infile = NULL, *outfile = NULL, *prog; | char *infile = NULL, *outfile = NULL, *prog; | ||||
unsigned char *buffer = NULL; | |||||
OPTION_CHOICE o; | OPTION_CHOICE o; | ||||
int asn1_flag = OPENSSL_EC_NAMED_CURVE, new_asn1_flag = 0; | int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0; | ||||
int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0, C = 0; | |||||
int ret = 1, private = 0; | int ret = 1, private = 0; | ||||
int list_curves = 0, no_seed = 0, check = 0, new_form = 0; | int no_seed = 0, check = 0, check_named = 0, text = 0, genkey = 0; | ||||
int text = 0, i, genkey = 0; | int list_curves = 0; | ||||
prog = opt_init(argc, argv, ecparam_options); | prog = opt_init(argc, argv, ecparam_options); | ||||
while ((o = opt_next()) != OPT_EOF) { | while ((o = opt_next()) != OPT_EOF) { | ||||
switch (o) { | switch (o) { | ||||
case OPT_EOF: | case OPT_EOF: | ||||
case OPT_ERR: | case OPT_ERR: | ||||
opthelp: | opthelp: | ||||
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); | ||||
Show All 14 Lines | opthelp: | ||||
goto opthelp; | goto opthelp; | ||||
break; | break; | ||||
case OPT_OUT: | case OPT_OUT: | ||||
outfile = opt_arg(); | outfile = opt_arg(); | ||||
break; | break; | ||||
case OPT_TEXT: | case OPT_TEXT: | ||||
text = 1; | text = 1; | ||||
break; | break; | ||||
case OPT_C: | |||||
C = 1; | |||||
break; | |||||
case OPT_CHECK: | case OPT_CHECK: | ||||
check = 1; | check = 1; | ||||
break; | break; | ||||
case OPT_CHECK_NAMED: | |||||
check_named = 1; | |||||
break; | |||||
case OPT_LIST_CURVES: | case OPT_LIST_CURVES: | ||||
list_curves = 1; | list_curves = 1; | ||||
break; | break; | ||||
case OPT_NO_SEED: | case OPT_NO_SEED: | ||||
no_seed = 1; | no_seed = 1; | ||||
break; | break; | ||||
case OPT_NOOUT: | case OPT_NOOUT: | ||||
noout = 1; | noout = 1; | ||||
break; | break; | ||||
case OPT_NAME: | case OPT_NAME: | ||||
curve_name = opt_arg(); | curve_name = opt_arg(); | ||||
break; | break; | ||||
case OPT_CONV_FORM: | case OPT_CONV_FORM: | ||||
if (!opt_pair(opt_arg(), forms, &new_form)) | point_format = opt_arg(); | ||||
if (!opt_string(point_format, point_format_options)) | |||||
goto opthelp; | goto opthelp; | ||||
form = new_form; | |||||
new_form = 1; | |||||
break; | break; | ||||
case OPT_PARAM_ENC: | case OPT_PARAM_ENC: | ||||
if (!opt_pair(opt_arg(), encodings, &asn1_flag)) | asn1_encoding = opt_arg(); | ||||
if (!opt_string(asn1_encoding, asn1_encoding_options)) | |||||
goto opthelp; | goto opthelp; | ||||
new_asn1_flag = 1; | |||||
break; | break; | ||||
case OPT_GENKEY: | case OPT_GENKEY: | ||||
genkey = 1; | genkey = 1; | ||||
break; | break; | ||||
case OPT_R_CASES: | case OPT_R_CASES: | ||||
if (!opt_rand(o)) | if (!opt_rand(o)) | ||||
goto end; | goto end; | ||||
break; | break; | ||||
case OPT_PROV_CASES: | |||||
if (!opt_provider(o)) | |||||
goto end; | |||||
break; | |||||
case OPT_ENGINE: | case OPT_ENGINE: | ||||
e = setup_engine(opt_arg(), 0); | e = setup_engine(opt_arg(), 0); | ||||
break; | break; | ||||
} | } | ||||
} | } | ||||
/* No extra args. */ | |||||
argc = opt_num_rest(); | argc = opt_num_rest(); | ||||
if (argc != 0) | if (argc != 0) | ||||
goto opthelp; | goto opthelp; | ||||
if (!app_RAND_load()) | |||||
goto end; | |||||
private = genkey ? 1 : 0; | private = genkey ? 1 : 0; | ||||
in = bio_open_default(infile, 'r', informat); | |||||
if (in == NULL) | |||||
goto end; | |||||
out = bio_open_owner(outfile, outformat, private); | out = bio_open_owner(outfile, outformat, private); | ||||
if (out == NULL) | if (out == NULL) | ||||
goto end; | goto end; | ||||
if (list_curves) { | if (list_curves) { | ||||
EC_builtin_curve *curves = NULL; | if (list_builtin_curves(out)) | ||||
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; | ret = 0; | ||||
goto end; | goto end; | ||||
} | } | ||||
if (curve_name != NULL) { | if (curve_name != NULL) { | ||||
int nid; | OSSL_PARAM params[4]; | ||||
OSSL_PARAM *p = params; | |||||
/* | |||||
* 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) { | if (strcmp(curve_name, "secp192r1") == 0) { | ||||
BIO_printf(bio_err, "using curve name prime192v1 " | BIO_printf(bio_err, | ||||
"instead of secp192r1\n"); | "using curve name prime192v1 instead of secp192r1\n"); | ||||
nid = NID_X9_62_prime192v1; | curve_name = SN_X9_62_prime192v1; | ||||
} else if (strcmp(curve_name, "secp256r1") == 0) { | } else if (strcmp(curve_name, "secp256r1") == 0) { | ||||
BIO_printf(bio_err, "using curve name prime256v1 " | BIO_printf(bio_err, | ||||
"instead of secp256r1\n"); | "using curve name prime256v1 instead of secp256r1\n"); | ||||
nid = NID_X9_62_prime256v1; | curve_name = SN_X9_62_prime256v1; | ||||
} else { | |||||
nid = OBJ_sn2nid(curve_name); | |||||
} | } | ||||
*p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, | |||||
curve_name, 0); | |||||
if (asn1_encoding != NULL) | |||||
*p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, | |||||
asn1_encoding, 0); | |||||
if (point_format != NULL) | |||||
*p++ = OSSL_PARAM_construct_utf8_string( | |||||
OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, | |||||
point_format, 0); | |||||
*p = OSSL_PARAM_construct_end(); | |||||
if (nid == 0) | if (OPENSSL_strcasecmp(curve_name, "SM2") == 0) | ||||
nid = EC_curve_nist2nid(curve_name); | gctx_params = EVP_PKEY_CTX_new_from_name(app_get0_libctx(), "sm2", | ||||
app_get0_propq()); | |||||
if (nid == 0) { | else | ||||
BIO_printf(bio_err, "unknown curve name (%s)\n", curve_name); | gctx_params = EVP_PKEY_CTX_new_from_name(app_get0_libctx(), "ec", | ||||
app_get0_propq()); | |||||
if (gctx_params == NULL | |||||
|| EVP_PKEY_keygen_init(gctx_params) <= 0 | |||||
|| EVP_PKEY_CTX_set_params(gctx_params, params) <= 0 | |||||
|| EVP_PKEY_keygen(gctx_params, ¶ms_key) <= 0) { | |||||
BIO_printf(bio_err, "unable to generate key\n"); | |||||
goto end; | 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 { | } else { | ||||
group = PEM_read_bio_ECPKParameters(in, NULL, NULL, NULL); | params_key = load_keyparams(infile, informat, 1, "EC", "EC parameters"); | ||||
} | if (params_key == NULL || !EVP_PKEY_is_a(params_key, "EC")) | ||||
if (group == NULL) { | |||||
BIO_printf(bio_err, "unable to load elliptic curve parameters\n"); | |||||
ERR_print_errors(bio_err); | |||||
goto end; | goto end; | ||||
} | if (point_format | ||||
&& !EVP_PKEY_set_utf8_string_param( | |||||
if (new_form) | params_key, OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, | ||||
EC_GROUP_set_point_conversion_form(group, form); | point_format)) { | ||||
BIO_printf(bio_err, "unable to set point conversion format\n"); | |||||
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; | goto end; | ||||
} | } | ||||
if (check) { | if (asn1_encoding != NULL | ||||
BIO_printf(bio_err, "checking elliptic curve parameters: "); | && !EVP_PKEY_set_utf8_string_param( | ||||
if (!EC_GROUP_check(group, NULL)) { | params_key, OSSL_PKEY_PARAM_EC_ENCODING, asn1_encoding)) { | ||||
BIO_printf(bio_err, "failed\n"); | BIO_printf(bio_err, "unable to set asn1 encoding format\n"); | ||||
ERR_print_errors(bio_err); | |||||
goto end; | goto end; | ||||
} | } | ||||
BIO_printf(bio_err, "ok\n"); | |||||
} | } | ||||
if (C) { | if (no_seed | ||||
size_t buf_len = 0, tmp_len = 0; | && !EVP_PKEY_set_octet_string_param(params_key, OSSL_PKEY_PARAM_EC_SEED, | ||||
const EC_POINT *point; | NULL, 0)) { | ||||
int is_prime, len = 0; | BIO_printf(bio_err, "unable to clear seed\n"); | ||||
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; | goto end; | ||||
} | } | ||||
is_prime = (EC_METHOD_get_field_type(meth) == NID_X9_62_prime_field); | if (text | ||||
if (!is_prime) { | && !EVP_PKEY_print_params(out, params_key, 0, NULL)) { | ||||
BIO_printf(bio_err, "Can only handle X9.62 prime fields\n"); | BIO_printf(bio_err, "unable to print params\n"); | ||||
goto end; | goto end; | ||||
} | } | ||||
if (!EC_GROUP_get_curve(group, ec_p, ec_a, ec_b, NULL)) | if (check || check_named) { | ||||
goto end; | BIO_printf(bio_err, "checking elliptic curve parameters: "); | ||||
if ((point = EC_GROUP_get0_generator(group)) == NULL) | if (check_named | ||||
&& !EVP_PKEY_set_utf8_string_param(params_key, | |||||
OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, | |||||
OSSL_PKEY_EC_GROUP_CHECK_NAMED)) { | |||||
BIO_printf(bio_err, "unable to set check_type\n"); | |||||
goto end; | goto end; | ||||
if (!EC_POINT_point2bn(group, point, | } | ||||
EC_GROUP_get_point_conversion_form(group), | pctx = EVP_PKEY_CTX_new_from_pkey(app_get0_libctx(), params_key, | ||||
ec_gen, NULL)) | app_get0_propq()); | ||||
if (pctx == NULL || EVP_PKEY_param_check(pctx) <= 0) { | |||||
BIO_printf(bio_err, "failed\n"); | |||||
goto end; | 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"); | |||||
} | } | ||||
BIO_printf(bio_err, "ok\n"); | |||||
} | |||||
if (outformat == FORMAT_ASN1 && genkey) | if (outformat == FORMAT_ASN1 && genkey) | ||||
noout = 1; | noout = 1; | ||||
if (!noout) { | if (!noout) { | ||||
if (outformat == FORMAT_ASN1) | ectx_params = OSSL_ENCODER_CTX_new_for_pkey( | ||||
i = i2d_ECPKParameters_bio(out, group); | params_key, OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS, | ||||
else | outformat == FORMAT_ASN1 ? "DER" : "PEM", NULL, NULL); | ||||
i = PEM_write_bio_ECPKParameters(out, group); | if (!OSSL_ENCODER_to_bio(ectx_params, out)) { | ||||
if (!i) { | BIO_printf(bio_err, "unable to write elliptic curve parameters\n"); | ||||
BIO_printf(bio_err, "unable to write elliptic " | |||||
"curve parameters\n"); | |||||
ERR_print_errors(bio_err); | |||||
goto end; | goto end; | ||||
} | } | ||||
} | } | ||||
if (genkey) { | if (genkey) { | ||||
EC_KEY *eckey = EC_KEY_new(); | /* | ||||
* NOTE: EC keygen does not normally need to pass in the param_key | |||||
if (eckey == NULL) | * for named curves. This can be achieved using: | ||||
goto end; | * gctx = EVP_PKEY_CTX_new_from_name(NULL, "EC", NULL); | ||||
* EVP_PKEY_keygen_init(gctx); | |||||
if (EC_KEY_set_group(eckey, group) == 0) { | * EVP_PKEY_CTX_set_group_name(gctx, curvename); | ||||
BIO_printf(bio_err, "unable to set group when generating key\n"); | * EVP_PKEY_keygen(gctx, &key) <= 0) | ||||
EC_KEY_free(eckey); | */ | ||||
ERR_print_errors(bio_err); | gctx_key = EVP_PKEY_CTX_new_from_pkey(app_get0_libctx(), params_key, | ||||
goto end; | app_get0_propq()); | ||||
} | if (EVP_PKEY_keygen_init(gctx_key) <= 0 | ||||
|| EVP_PKEY_keygen(gctx_key, &key) <= 0) { | |||||
if (new_form) | |||||
EC_KEY_set_conv_form(eckey, form); | |||||
if (!EC_KEY_generate_key(eckey)) { | |||||
BIO_printf(bio_err, "unable to generate key\n"); | BIO_printf(bio_err, "unable to generate key\n"); | ||||
EC_KEY_free(eckey); | |||||
ERR_print_errors(bio_err); | |||||
goto end; | goto end; | ||||
} | } | ||||
assert(private); | assert(private); | ||||
if (outformat == FORMAT_ASN1) | ectx_key = OSSL_ENCODER_CTX_new_for_pkey( | ||||
i = i2d_ECPrivateKey_bio(out, eckey); | key, OSSL_KEYMGMT_SELECT_ALL, | ||||
else | outformat == FORMAT_ASN1 ? "DER" : "PEM", NULL, NULL); | ||||
i = PEM_write_bio_ECPrivateKey(out, eckey, NULL, | if (!OSSL_ENCODER_to_bio(ectx_key, out)) { | ||||
NULL, 0, NULL, NULL); | BIO_printf(bio_err, "unable to write elliptic " | ||||
EC_KEY_free(eckey); | "curve parameters\n"); | ||||
goto end; | |||||
} | } | ||||
} | |||||
ret = 0; | ret = 0; | ||||
end: | end: | ||||
BN_free(ec_p); | if (ret != 0) | ||||
BN_free(ec_a); | ERR_print_errors(bio_err); | ||||
BN_free(ec_b); | |||||
BN_free(ec_gen); | |||||
BN_free(ec_order); | |||||
BN_free(ec_cofactor); | |||||
OPENSSL_free(buffer); | |||||
EC_GROUP_free(group); | |||||
release_engine(e); | release_engine(e); | ||||
BIO_free(in); | EVP_PKEY_free(params_key); | ||||
EVP_PKEY_free(key); | |||||
EVP_PKEY_CTX_free(pctx); | |||||
EVP_PKEY_CTX_free(gctx_params); | |||||
EVP_PKEY_CTX_free(gctx_key); | |||||
OSSL_DECODER_CTX_free(dctx_params); | |||||
OSSL_ENCODER_CTX_free(ectx_params); | |||||
OSSL_ENCODER_CTX_free(ectx_key); | |||||
BIO_free_all(out); | BIO_free_all(out); | ||||
return ret; | return ret; | ||||
} | } |