Adding in curl and openssl repos

This commit is contained in:
2025-08-14 12:09:30 -04:00
parent af2117b574
commit 0ace93e303
21174 changed files with 3607720 additions and 2 deletions

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/*-
* Copyright 2022-2024 The OpenSSL Project Authors. All Rights Reserved.
*
* 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
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* Example showing how to generate an DSA key pair.
*/
#include <openssl/evp.h>
#include "dsa.inc"
/*
* Generate dsa params using default values.
* See the EVP_PKEY_DSA_param_fromdata demo if you need
* to load DSA params from raw values.
* See the EVP_PKEY_DSA_paramgen demo if you need to
* use non default parameters.
*/
static EVP_PKEY *dsa_genparams(OSSL_LIB_CTX *libctx, const char *propq)
{
EVP_PKEY *dsaparamkey = NULL;
EVP_PKEY_CTX *ctx = NULL;
/* Use the dsa params in a EVP_PKEY ctx */
ctx = EVP_PKEY_CTX_new_from_name(libctx, "DSA", propq);
if (ctx == NULL) {
fprintf(stderr, "EVP_PKEY_CTX_new_from_name() failed\n");
return NULL;
}
if (EVP_PKEY_paramgen_init(ctx) <= 0
|| EVP_PKEY_paramgen(ctx, &dsaparamkey) <= 0) {
fprintf(stderr, "DSA paramgen failed\n");
goto cleanup;
}
cleanup:
EVP_PKEY_CTX_free(ctx);
return dsaparamkey;
}
int main(int argc, char **argv)
{
int ret = EXIT_FAILURE;
OSSL_LIB_CTX *libctx = NULL;
const char *propq = NULL;
EVP_PKEY *dsaparamskey = NULL;
EVP_PKEY *dsakey = NULL;
EVP_PKEY_CTX *ctx = NULL;
/* Generate random dsa params */
dsaparamskey = dsa_genparams(libctx, propq);
if (dsaparamskey == NULL)
goto cleanup;
/* Use the dsa params in a EVP_PKEY ctx */
ctx = EVP_PKEY_CTX_new_from_pkey(libctx, dsaparamskey, propq);
if (ctx == NULL) {
fprintf(stderr, "EVP_PKEY_CTX_new_from_pkey() failed\n");
goto cleanup;
}
/* Generate a key using the dsa params */
if (EVP_PKEY_keygen_init(ctx) <= 0
|| EVP_PKEY_keygen(ctx, &dsakey) <= 0) {
fprintf(stderr, "DSA keygen failed\n");
goto cleanup;
}
if (!dsa_print_key(dsakey, 1, libctx, propq))
goto cleanup;
ret = EXIT_SUCCESS;
cleanup:
EVP_PKEY_free(dsakey);
EVP_PKEY_free(dsaparamskey);
EVP_PKEY_CTX_free(ctx);
return ret;
}

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/*-
* Copyright 2022-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* 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
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* Example showing how to load DSA params from raw data
* using EVP_PKEY_fromdata()
*/
#include <openssl/param_build.h>
#include <openssl/evp.h>
#include <openssl/core_names.h>
#include "dsa.inc"
int main(int argc, char **argv)
{
int ret = EXIT_FAILURE;
OSSL_LIB_CTX *libctx = NULL;
const char *propq = NULL;
EVP_PKEY_CTX *ctx = NULL;
EVP_PKEY *dsaparamkey = NULL;
OSSL_PARAM_BLD *bld = NULL;
OSSL_PARAM *params = NULL;
BIGNUM *p = NULL, *q = NULL, *g = NULL;
p = BN_bin2bn(dsa_p, sizeof(dsa_p), NULL);
q = BN_bin2bn(dsa_q, sizeof(dsa_q), NULL);
g = BN_bin2bn(dsa_g, sizeof(dsa_g), NULL);
if (p == NULL || q == NULL || g == NULL)
goto cleanup;
/* Use OSSL_PARAM_BLD if you need to handle BIGNUM Parameters */
bld = OSSL_PARAM_BLD_new();
if (bld == NULL)
goto cleanup;
if (!OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_FFC_P, p)
|| !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_FFC_Q, q)
|| !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_FFC_G, g))
goto cleanup;
params = OSSL_PARAM_BLD_to_param(bld);
if (params == NULL)
goto cleanup;
ctx = EVP_PKEY_CTX_new_from_name(libctx, "DSA", propq);
if (ctx == NULL) {
fprintf(stderr, "EVP_PKEY_CTX_new_from_name() failed\n");
goto cleanup;
}
if (EVP_PKEY_fromdata_init(ctx) <= 0
|| EVP_PKEY_fromdata(ctx, &dsaparamkey, EVP_PKEY_KEY_PARAMETERS, params) <= 0) {
fprintf(stderr, "EVP_PKEY_fromdata() failed\n");
goto cleanup;
}
if (!dsa_print_key(dsaparamkey, 0, libctx, propq))
goto cleanup;
ret = EXIT_SUCCESS;
cleanup:
EVP_PKEY_free(dsaparamkey);
EVP_PKEY_CTX_free(ctx);
OSSL_PARAM_free(params);
OSSL_PARAM_BLD_free(bld);
BN_free(g);
BN_free(q);
BN_free(p);
return ret;
}

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/*-
* Copyright 2022-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* 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
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* Example showing how to generate DSA params using
* FIPS 186-4 DSA FFC parameter generation.
*/
#include <openssl/evp.h>
#include "dsa.inc"
int main(int argc, char **argv)
{
int ret = EXIT_FAILURE;
OSSL_LIB_CTX *libctx = NULL;
const char *propq = NULL;
EVP_PKEY_CTX *ctx = NULL;
EVP_PKEY *dsaparamkey = NULL;
OSSL_PARAM params[7];
unsigned int pbits = 2048;
unsigned int qbits = 256;
int gindex = 42;
ctx = EVP_PKEY_CTX_new_from_name(libctx, "DSA", propq);
if (ctx == NULL)
goto cleanup;
/*
* Demonstrate how to set optional DSA fields as params.
* See doc/man7/EVP_PKEY-FFC.pod and doc/man7/EVP_PKEY-DSA.pod
* for more information.
*/
params[0] = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_FFC_TYPE,
"fips186_4", 0);
params[1] = OSSL_PARAM_construct_uint(OSSL_PKEY_PARAM_FFC_PBITS, &pbits);
params[2] = OSSL_PARAM_construct_uint(OSSL_PKEY_PARAM_FFC_QBITS, &qbits);
params[3] = OSSL_PARAM_construct_int(OSSL_PKEY_PARAM_FFC_GINDEX, &gindex);
params[4] = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_FFC_DIGEST,
"SHA384", 0);
params[5] = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_FFC_DIGEST_PROPS,
"provider=default", 0);
params[6] = OSSL_PARAM_construct_end();
/* Generate a dsa param key using optional params */
if (EVP_PKEY_paramgen_init(ctx) <= 0
|| EVP_PKEY_CTX_set_params(ctx, params) <= 0
|| EVP_PKEY_paramgen(ctx, &dsaparamkey) <= 0) {
fprintf(stderr, "DSA paramgen failed\n");
goto cleanup;
}
if (!dsa_print_key(dsaparamkey, 0, libctx, propq))
goto cleanup;
ret = EXIT_SUCCESS;
cleanup:
EVP_PKEY_free(dsaparamkey);
EVP_PKEY_CTX_free(ctx);
return ret;
}

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/*-
* Copyright 2022-2024 The OpenSSL Project Authors. All Rights Reserved.
*
* 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
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* Example showing how to validate DSA parameters.
*
* Proper FIPS 186-4 DSA (FFC) parameter validation requires that all
* the parameters used during parameter generation are supplied
* when doing the validation. Unfortunately saving DSA parameters as
* a PEM or DER file does not write out all required fields. Because
* of this the default provider normally only does a partial
* validation. The FIPS provider will however try to do a full
* validation. To force the default provider to use full
* validation the 'seed' that is output during generation must be
* added to the key. See doc/man7/EVP_PKEY-FFC for more information.
*/
#include <openssl/evp.h>
#include <openssl/core_names.h>
#include <openssl/pem.h>
#include "dsa.inc"
/* The following values were output from the EVP_PKEY_DSA_paramgen demo */
static const char dsapem[] =
"-----BEGIN DSA PARAMETERS-----\n"
"MIICLAKCAQEA1pobSR1FJ3+Tvi0J6Tk1PSV2owZey1Nuo847hGw/59VCS6RPQEqr\n"
"vp5fhbvBjupBeVGA/AMH6rI4i4h6jlhurrqH1CqUHVcDhJzxV668bMLiP3mIxg5o\n"
"9Yq8x6BnSOtH5Je0tpeE0/fEvvLjCwBUbwnwWxzjANcvDUEt9XYeRrtB2v52fr56\n"
"hVYz3wMMNog4CEDOLTvx7/84eVPuUeWDRQFH1EaHMdulP34KBcatEEpEZapkepng\n"
"nohm9sFSPQhq2utpkH7pNXdG0EILBtRDCvUpF5720a48LYofdggh2VEZfgElAGFk\n"
"dW/CkvyBDmGIzil5aTz4MMsdudaVYgzt6wIhAPsSGC42Qa+X0AFGvonb5nmfUVm/\n"
"8aC+tHk7Nb2AYLHXAoIBADx5C0H1+QHsmGKvuOaY+WKUt7aWUrEivD1zBMJAQ6bL\n"
"Wv9lbCq1CFHvVzojeOVpn872NqDEpkx4HTpvqhxWL5CkbN/HaGItsQzkD59AQg3v\n"
"4YsLlkesq9Jq6x/aWetJXWO36fszFv1gpD3NY3wliBvMYHx62jfc5suh9D3ZZvu7\n"
"PLGH4X4kcfzK/R2b0oVbEBjVTe5GMRYZRqnvfSW2f2fA7BzI1OL83UxDDe58cL2M\n"
"GcAoUYXOBAfZ37qLMm2juf+o5gCrT4CXfRPu6kbapt7V/YIc1nsNgeAOKKoFBHBQ\n"
"gc5u5G6G/j79FVoSDq9DYwTJcHPsU+eHj1uWHso1AjQ=\n"
"-----END DSA PARAMETERS-----\n";
static const char hexseed[] =
"cba30ccd905aa7675a0b81769704bf3c"
"ccf2ca1892b2eaf6b9e2b38d9bf6affc"
"42ada55986d8a1772b442770954d0b65";
static const int gindex = 42;
static const int pcounter = 363;
static const char digest[] = "SHA384";
/*
* Create a new dsa param key that is the combination of an existing param key
* plus extra parameters.
*/
static EVP_PKEY_CTX *create_merged_key(EVP_PKEY *dsaparams, const OSSL_PARAM *newparams,
OSSL_LIB_CTX *libctx, const char *propq)
{
EVP_PKEY_CTX *out = NULL;
EVP_PKEY_CTX *ctx = NULL;
EVP_PKEY *pkey = NULL;
OSSL_PARAM *mergedparams = NULL;
OSSL_PARAM *loadedparams = NULL;
/* Specify EVP_PKEY_KEY_PUBLIC here if you have a public key */
if (EVP_PKEY_todata(dsaparams, EVP_PKEY_KEY_PARAMETERS, &loadedparams) <= 0) {
fprintf(stderr, "EVP_PKEY_todata() failed\n");
goto cleanup;
}
mergedparams = OSSL_PARAM_merge(loadedparams, newparams);
if (mergedparams == NULL) {
fprintf(stderr, "OSSL_PARAM_merge() failed\n");
goto cleanup;
}
ctx = EVP_PKEY_CTX_new_from_name(libctx, "DSA", propq);
if (ctx == NULL) {
fprintf(stderr, "EVP_PKEY_CTX_new_from_name() failed\n");
goto cleanup;
}
if (EVP_PKEY_fromdata_init(ctx) <= 0
|| EVP_PKEY_fromdata(ctx, &pkey,
EVP_PKEY_KEY_PARAMETERS, mergedparams) <= 0) {
fprintf(stderr, "EVP_PKEY_fromdata() failed\n");
goto cleanup;
}
out = EVP_PKEY_CTX_new_from_pkey(libctx, pkey, propq);
if (out == NULL) {
fprintf(stderr, "EVP_PKEY_CTX_new_from_pkey() failed\n");
goto cleanup;
}
cleanup:
EVP_PKEY_free(pkey);
OSSL_PARAM_free(loadedparams);
OSSL_PARAM_free(mergedparams);
EVP_PKEY_CTX_free(ctx);
return out;
}
int main(int argc, char **argv)
{
int ret = EXIT_FAILURE;
OSSL_LIB_CTX *libctx = NULL;
const char *propq = NULL;
EVP_PKEY *dsaparamskey = NULL;
EVP_PKEY_CTX *ctx = NULL;
EVP_PKEY_CTX *ctx1 = NULL;
EVP_PKEY_CTX *ctx2 = NULL;
BIO *in = NULL;
OSSL_PARAM params[6];
unsigned char seed[64];
size_t seedlen;
if (!OPENSSL_hexstr2buf_ex(seed, sizeof(seed), &seedlen, hexseed, '\0'))
goto cleanup;
/*
* This example loads the PEM data from a memory buffer
* Use BIO_new_fp() to load a PEM file instead
*/
in = BIO_new_mem_buf(dsapem, strlen(dsapem));
if (in == NULL) {
fprintf(stderr, "BIO_new_mem_buf() failed\n");
goto cleanup;
}
/* Load DSA params from pem data */
dsaparamskey = PEM_read_bio_Parameters_ex(in, NULL, libctx, propq);
if (dsaparamskey == NULL) {
fprintf(stderr, "Failed to load dsa params\n");
goto cleanup;
}
ctx = EVP_PKEY_CTX_new_from_pkey(libctx, dsaparamskey, propq);
if (ctx == NULL) {
fprintf(stderr, "EVP_PKEY_CTX_new_from_pkey() failed\n");
goto cleanup;
}
/*
* When using the default provider this only does a partial check to
* make sure that the values of p, q and g are ok.
* This will fail however if the FIPS provider is used since it does
* a proper FIPS 186-4 key validation which requires extra parameters
*/
if (EVP_PKEY_param_check(ctx) <= 0) {
fprintf(stderr, "Simple EVP_PKEY_param_check() failed\n");
goto cleanup;
}
/*
* Setup parameters that we want to add.
* For illustration purposes it deliberately omits a required parameter.
*/
params[0] = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_FFC_TYPE,
"fips186_4", 0);
/* Force it to do a proper validation by setting the seed */
params[1] = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_FFC_SEED,
(void *)seed, seedlen);
params[2] = OSSL_PARAM_construct_int(OSSL_PKEY_PARAM_FFC_GINDEX, (int *)&gindex);
params[3] = OSSL_PARAM_construct_int(OSSL_PKEY_PARAM_FFC_PCOUNTER, (int *)&pcounter);
params[4] = OSSL_PARAM_construct_end();
/* generate a new key that is the combination of the existing key and the new params */
ctx1 = create_merged_key(dsaparamskey, params, libctx, propq);
if (ctx1 == NULL)
goto cleanup;
/* This will fail since not all the parameters used for key generation are added */
if (EVP_PKEY_param_check(ctx1) > 0) {
fprintf(stderr, "EVP_PKEY_param_check() should fail\n");
goto cleanup;
}
/*
* Add the missing parameters onto the end of the existing list of params
* If the default was used for the generation then this parameter is not
* needed
*/
params[4] = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_FFC_DIGEST,
(char *)digest, 0);
params[5] = OSSL_PARAM_construct_end();
ctx2 = create_merged_key(dsaparamskey, params, libctx, propq);
if (ctx2 == NULL)
goto cleanup;
if (EVP_PKEY_param_check(ctx2) <= 0) {
fprintf(stderr, "EVP_PKEY_param_check() failed\n");
goto cleanup;
}
if (!dsa_print_key(EVP_PKEY_CTX_get0_pkey(ctx2), 0, libctx, propq))
goto cleanup;
ret = EXIT_SUCCESS;
cleanup:
EVP_PKEY_free(dsaparamskey);
EVP_PKEY_CTX_free(ctx2);
EVP_PKEY_CTX_free(ctx1);
EVP_PKEY_CTX_free(ctx);
BIO_free(in);
return ret;
}

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/*-
* Copyright 2021-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* 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
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* Example showing how to generate an EC key and extract values from the
* generated key.
*/
#include <string.h>
#include <stdio.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/core_names.h>
static int get_key_values(EVP_PKEY *pkey);
/*
* The following code shows how to generate an EC key from a curve name
* with additional parameters. If only the curve name is required then the
* simple helper can be used instead i.e. Either
* pkey = EVP_EC_gen(curvename); OR
* pkey = EVP_PKEY_Q_keygen(libctx, propq, "EC", curvename);
*/
static EVP_PKEY *do_ec_keygen(void)
{
/*
* The libctx and propq can be set if required, they are included here
* to show how they are passed to EVP_PKEY_CTX_new_from_name().
*/
OSSL_LIB_CTX *libctx = NULL;
const char *propq = NULL;
EVP_PKEY *key = NULL;
OSSL_PARAM params[3];
EVP_PKEY_CTX *genctx = NULL;
const char *curvename = "P-256";
int use_cofactordh = 1;
genctx = EVP_PKEY_CTX_new_from_name(libctx, "EC", propq);
if (genctx == NULL) {
fprintf(stderr, "EVP_PKEY_CTX_new_from_name() failed\n");
goto cleanup;
}
if (EVP_PKEY_keygen_init(genctx) <= 0) {
fprintf(stderr, "EVP_PKEY_keygen_init() failed\n");
goto cleanup;
}
params[0] = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME,
(char *)curvename, 0);
/*
* This is an optional parameter.
* For many curves where the cofactor is 1, setting this has no effect.
*/
params[1] = OSSL_PARAM_construct_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH,
&use_cofactordh);
params[2] = OSSL_PARAM_construct_end();
if (!EVP_PKEY_CTX_set_params(genctx, params)) {
fprintf(stderr, "EVP_PKEY_CTX_set_params() failed\n");
goto cleanup;
}
fprintf(stdout, "Generating EC key\n\n");
if (EVP_PKEY_generate(genctx, &key) <= 0) {
fprintf(stderr, "EVP_PKEY_generate() failed\n");
goto cleanup;
}
cleanup:
EVP_PKEY_CTX_free(genctx);
return key;
}
/*
* The following code shows how retrieve key data from the generated
* EC key. See doc/man7/EVP_PKEY-EC.pod for more information.
*
* EVP_PKEY_print_private() could also be used to display the values.
*/
static int get_key_values(EVP_PKEY *pkey)
{
int ret = 0;
char out_curvename[80];
unsigned char out_pubkey[80];
unsigned char out_privkey[80];
BIGNUM *out_priv = NULL;
size_t out_pubkey_len, out_privkey_len = 0;
if (!EVP_PKEY_get_utf8_string_param(pkey, OSSL_PKEY_PARAM_GROUP_NAME,
out_curvename, sizeof(out_curvename),
NULL)) {
fprintf(stderr, "Failed to get curve name\n");
goto cleanup;
}
if (!EVP_PKEY_get_octet_string_param(pkey, OSSL_PKEY_PARAM_PUB_KEY,
out_pubkey, sizeof(out_pubkey),
&out_pubkey_len)) {
fprintf(stderr, "Failed to get public key\n");
goto cleanup;
}
if (!EVP_PKEY_get_bn_param(pkey, OSSL_PKEY_PARAM_PRIV_KEY, &out_priv)) {
fprintf(stderr, "Failed to get private key\n");
goto cleanup;
}
out_privkey_len = BN_bn2bin(out_priv, out_privkey);
if (out_privkey_len <= 0 || out_privkey_len > sizeof(out_privkey)) {
fprintf(stderr, "BN_bn2bin failed\n");
goto cleanup;
}
fprintf(stdout, "Curve name: %s\n", out_curvename);
fprintf(stdout, "Public key:\n");
BIO_dump_indent_fp(stdout, out_pubkey, out_pubkey_len, 2);
fprintf(stdout, "Private Key:\n");
BIO_dump_indent_fp(stdout, out_privkey, out_privkey_len, 2);
ret = 1;
cleanup:
/* Zeroize the private key data when we free it */
BN_clear_free(out_priv);
return ret;
}
int main(void)
{
int ret = EXIT_FAILURE;
EVP_PKEY *pkey;
pkey = do_ec_keygen();
if (pkey == NULL)
goto cleanup;
if (!get_key_values(pkey))
goto cleanup;
/*
* At this point we can write out the generated key using
* i2d_PrivateKey() and i2d_PublicKey() if required.
*/
ret = EXIT_SUCCESS;
cleanup:
if (ret != EXIT_SUCCESS)
ERR_print_errors_fp(stderr);
EVP_PKEY_free(pkey);
return ret;
}

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/*-
* Copyright 2022-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* 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
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* Example showing how to generate an RSA key pair.
*
* When generating an RSA key, you must specify the number of bits in the key. A
* reasonable value would be 4096. Avoid using values below 2048. These values
* are reasonable as of 2022.
*/
#include <string.h>
#include <stdio.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/rsa.h>
#include <openssl/core_names.h>
#include <openssl/pem.h>
/* A property query used for selecting algorithm implementations. */
static const char *propq = NULL;
/*
* Generates an RSA public-private key pair and returns it.
* The number of bits is specified by the bits argument.
*
* This uses the long way of generating an RSA key.
*/
static EVP_PKEY *generate_rsa_key_long(OSSL_LIB_CTX *libctx, unsigned int bits)
{
EVP_PKEY_CTX *genctx = NULL;
EVP_PKEY *pkey = NULL;
unsigned int primes = 2;
/* Create context using RSA algorithm. "RSA-PSS" could also be used here. */
genctx = EVP_PKEY_CTX_new_from_name(libctx, "RSA", propq);
if (genctx == NULL) {
fprintf(stderr, "EVP_PKEY_CTX_new_from_name() failed\n");
goto cleanup;
}
/* Initialize context for key generation purposes. */
if (EVP_PKEY_keygen_init(genctx) <= 0) {
fprintf(stderr, "EVP_PKEY_keygen_init() failed\n");
goto cleanup;
}
/*
* Here we set the number of bits to use in the RSA key.
* See comment at top of file for information on appropriate values.
*/
if (EVP_PKEY_CTX_set_rsa_keygen_bits(genctx, bits) <= 0) {
fprintf(stderr, "EVP_PKEY_CTX_set_rsa_keygen_bits() failed\n");
goto cleanup;
}
/*
* It is possible to create an RSA key using more than two primes.
* Do not do this unless you know why you need this.
* You ordinarily do not need to specify this, as the default is two.
*
* Both of these parameters can also be set via EVP_PKEY_CTX_set_params, but
* these functions provide a more concise way to do so.
*/
if (EVP_PKEY_CTX_set_rsa_keygen_primes(genctx, primes) <= 0) {
fprintf(stderr, "EVP_PKEY_CTX_set_rsa_keygen_primes() failed\n");
goto cleanup;
}
/*
* Generating an RSA key with a number of bits large enough to be secure for
* modern applications can take a fairly substantial amount of time (e.g.
* one second). If you require fast key generation, consider using an EC key
* instead.
*
* If you require progress information during the key generation process,
* you can set a progress callback using EVP_PKEY_set_cb; see the example in
* EVP_PKEY_generate(3).
*/
fprintf(stdout, "Generating RSA key, this may take some time...\n");
if (EVP_PKEY_generate(genctx, &pkey) <= 0) {
fprintf(stderr, "EVP_PKEY_generate() failed\n");
goto cleanup;
}
/* pkey is now set to an object representing the generated key pair. */
cleanup:
EVP_PKEY_CTX_free(genctx);
return pkey;
}
/*
* Generates an RSA public-private key pair and returns it.
* The number of bits is specified by the bits argument.
*
* This uses a more concise way of generating an RSA key, which is suitable for
* simple cases. It is used if -s is passed on the command line, otherwise the
* long method above is used. The ability to choose between these two methods is
* shown here only for demonstration; the results are equivalent.
*/
static EVP_PKEY *generate_rsa_key_short(OSSL_LIB_CTX *libctx, unsigned int bits)
{
EVP_PKEY *pkey = NULL;
fprintf(stdout, "Generating RSA key, this may take some time...\n");
pkey = EVP_PKEY_Q_keygen(libctx, propq, "RSA", (size_t)bits);
if (pkey == NULL)
fprintf(stderr, "EVP_PKEY_Q_keygen() failed\n");
return pkey;
}
/*
* Prints information on an EVP_PKEY object representing an RSA key pair.
*/
static int dump_key(const EVP_PKEY *pkey)
{
int ret = 0;
int bits = 0;
BIGNUM *n = NULL, *e = NULL, *d = NULL, *p = NULL, *q = NULL;
/*
* Retrieve value of n. This value is not secret and forms part of the
* public key.
*
* Calling EVP_PKEY_get_bn_param with a NULL BIGNUM pointer causes
* a new BIGNUM to be allocated, so these must be freed subsequently.
*/
if (EVP_PKEY_get_bn_param(pkey, OSSL_PKEY_PARAM_RSA_N, &n) == 0) {
fprintf(stderr, "Failed to retrieve n\n");
goto cleanup;
}
/*
* Retrieve value of e. This value is not secret and forms part of the
* public key. It is typically 65537 and need not be changed.
*/
if (EVP_PKEY_get_bn_param(pkey, OSSL_PKEY_PARAM_RSA_E, &e) == 0) {
fprintf(stderr, "Failed to retrieve e\n");
goto cleanup;
}
/*
* Retrieve value of d. This value is secret and forms part of the private
* key. It must not be published.
*/
if (EVP_PKEY_get_bn_param(pkey, OSSL_PKEY_PARAM_RSA_D, &d) == 0) {
fprintf(stderr, "Failed to retrieve d\n");
goto cleanup;
}
/*
* Retrieve value of the first prime factor, commonly known as p. This value
* is secret and forms part of the private key. It must not be published.
*/
if (EVP_PKEY_get_bn_param(pkey, OSSL_PKEY_PARAM_RSA_FACTOR1, &p) == 0) {
fprintf(stderr, "Failed to retrieve p\n");
goto cleanup;
}
/*
* Retrieve value of the second prime factor, commonly known as q. This value
* is secret and forms part of the private key. It must not be published.
*
* If you are creating an RSA key with more than two primes for special
* applications, you can retrieve these primes with
* OSSL_PKEY_PARAM_RSA_FACTOR3, etc.
*/
if (EVP_PKEY_get_bn_param(pkey, OSSL_PKEY_PARAM_RSA_FACTOR2, &q) == 0) {
fprintf(stderr, "Failed to retrieve q\n");
goto cleanup;
}
/*
* We can also retrieve the key size in bits for informational purposes.
*/
if (EVP_PKEY_get_int_param(pkey, OSSL_PKEY_PARAM_BITS, &bits) == 0) {
fprintf(stderr, "Failed to retrieve bits\n");
goto cleanup;
}
/* Output hexadecimal representations of the BIGNUM objects. */
fprintf(stdout, "\nNumber of bits: %d\n\n", bits);
fprintf(stdout, "Public values:\n");
fprintf(stdout, " n = 0x");
BN_print_fp(stdout, n);
fprintf(stdout, "\n");
fprintf(stdout, " e = 0x");
BN_print_fp(stdout, e);
fprintf(stdout, "\n\n");
fprintf(stdout, "Private values:\n");
fprintf(stdout, " d = 0x");
BN_print_fp(stdout, d);
fprintf(stdout, "\n");
fprintf(stdout, " p = 0x");
BN_print_fp(stdout, p);
fprintf(stdout, "\n");
fprintf(stdout, " q = 0x");
BN_print_fp(stdout, q);
fprintf(stdout, "\n\n");
/* Output a PEM encoding of the public key. */
if (PEM_write_PUBKEY(stdout, pkey) == 0) {
fprintf(stderr, "Failed to output PEM-encoded public key\n");
goto cleanup;
}
/*
* Output a PEM encoding of the private key. Please note that this output is
* not encrypted. You may wish to use the arguments to specify encryption of
* the key if you are storing it on disk. See PEM_write_PrivateKey(3).
*/
if (PEM_write_PrivateKey(stdout, pkey, NULL, NULL, 0, NULL, NULL) == 0) {
fprintf(stderr, "Failed to output PEM-encoded private key\n");
goto cleanup;
}
ret = 1;
cleanup:
BN_free(n); /* not secret */
BN_free(e); /* not secret */
BN_clear_free(d); /* secret - scrub before freeing */
BN_clear_free(p); /* secret - scrub before freeing */
BN_clear_free(q); /* secret - scrub before freeing */
return ret;
}
int main(int argc, char **argv)
{
int ret = EXIT_FAILURE;
OSSL_LIB_CTX *libctx = NULL;
EVP_PKEY *pkey = NULL;
unsigned int bits = 4096;
int bits_i, use_short = 0;
/* usage: [-s] [<bits>] */
if (argc > 1 && strcmp(argv[1], "-s") == 0) {
--argc;
++argv;
use_short = 1;
}
if (argc > 1) {
bits_i = atoi(argv[1]);
if (bits < 512) {
fprintf(stderr, "Invalid RSA key size\n");
return EXIT_FAILURE;
}
bits = (unsigned int)bits_i;
}
/* Avoid using key sizes less than 2048 bits; see comment at top of file. */
if (bits < 2048)
fprintf(stderr, "Warning: very weak key size\n\n");
/* Generate RSA key. */
if (use_short)
pkey = generate_rsa_key_short(libctx, bits);
else
pkey = generate_rsa_key_long(libctx, bits);
if (pkey == NULL)
goto cleanup;
/* Dump the integers comprising the key. */
if (dump_key(pkey) == 0) {
fprintf(stderr, "Failed to dump key\n");
goto cleanup;
}
ret = EXIT_SUCCESS;
cleanup:
EVP_PKEY_free(pkey);
OSSL_LIB_CTX_free(libctx);
return ret;
}

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@@ -0,0 +1,44 @@
#
# To run the demos when linked with a shared library (default) ensure that
# libcrypto is on the library path. For example:
#
# LD_LIBRARY_PATH=../.. ./EVP_PKEY_EC_keygen
TESTS = EVP_PKEY_EC_keygen \
EVP_PKEY_RSA_keygen \
EVP_PKEY_DSA_keygen \
EVP_PKEY_DSA_paramgen \
EVP_PKEY_DSA_paramvalidate \
EVP_PKEY_DSA_paramfromdata
CFLAGS = -I../../include -g -Wall
LDFLAGS = -L../..
LDLIBS = -lcrypto
all: $(TESTS)
EVP_PKEY_DSA_keygen.o: EVP_PKEY_DSA_keygen.c dsa.inc
EVP_PKEY_DSA_paramgen.o: EVP_PKEY_DSA_paramgen.c dsa.inc
EVP_PKEY_DSA_paramvalidate.o: EVP_PKEY_DSA_paramvalidate.c dsa.inc
EVP_PKEY_DSA_paramfromdata.o: EVP_PKEY_DSA_paramfromdata.c dsa.inc
EVP_PKEY_EC_keygen: EVP_PKEY_EC_keygen.o
EVP_PKEY_RSA_keygen: EVP_PKEY_RSA_keygen.o
EVP_PKEY_DSA_keygen: EVP_PKEY_DSA_keygen.o
EVP_PKEY_DSA_paramgen: EVP_PKEY_DSA_paramgen.o
EVP_PKEY_DSA_paramvalidate: EVP_PKEY_DSA_paramvalidate.o
EVP_PKEY_DSA_paramfromdata: EVP_PKEY_DSA_paramfromdata.o
$(TESTS):
$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LDLIBS)
clean:
$(RM) *.o $(TESTS)
.PHONY: test
test: all
@echo "\nPKEY tests:"
@set -e; for tst in $(TESTS); do \
echo "\n"$$tst; \
LD_LIBRARY_PATH=../.. ./$$tst; \
done

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@@ -0,0 +1,36 @@
#
# To run the demos when linked with a shared library (default) ensure that
# libcrypto is on the library path. For example:
#
# LD_LIBRARY_PATH=../.. ./EVP_PKEY_EC_keygen
PROGRAMS{noinst} = EVP_PKEY_EC_keygen \
EVP_PKEY_RSA_keygen \
EVP_PKEY_DSA_keygen \
EVP_PKEY_DSA_paramgen \
EVP_PKEY_DSA_paramvalidate \
EVP_PKEY_DSA_paramfromdata
INCLUDE[EVP_PKEY_EC_keygen]=../../include
SOURCE[EVP_PKEY_EC_keygen]=EVP_PKEY_EC_keygen.c
DEPEND[EVP_PKEY_EC_keygen]=../../libcrypto
INCLUDE[EVP_PKEY_RSA_keygen]=../../include
SOURCE[EVP_PKEY_RSA_keygen]=EVP_PKEY_RSA_keygen.c
DEPEND[EVP_PKEY_RSA_keygen]=../../libcrypto
INCLUDE[EVP_PKEY_DSA_keygen]=../../include
SOURCE[EVP_PKEY_DSA_keygen]=EVP_PKEY_DSA_keygen.c
DEPEND[EVP_PKEY_DSA_keygen]=../../libcrypto
INCLUDE[EVP_PKEY_DSA_paramgen]=../../include
SOURCE[EVP_PKEY_DSA_paramgen]=EVP_PKEY_DSA_paramgen.c
DEPEND[EVP_PKEY_DSA_paramgen]=../../libcrypto
INCLUDE[EVP_PKEY_DSA_paramvalidate]=../../include
SOURCE[EVP_PKEY_DSA_paramvalidate]=EVP_PKEY_DSA_paramvalidate.c
DEPEND[EVP_PKEY_DSA_paramvalidate]=../../libcrypto
INCLUDE[EVP_PKEY_DSA_paramfromdata]=../../include
SOURCE[EVP_PKEY_DSA_paramfromdata]=EVP_PKEY_DSA_paramfromdata.c
DEPEND[EVP_PKEY_DSA_paramfromdata]=../../libcrypto

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@@ -0,0 +1,172 @@
/*-
* Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
*
* 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
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/pem.h>
#include <openssl/core_names.h>
/* Raw DSA params for P, Q and G */
static const unsigned char dsa_p[] = {
0xa2, 0x9b, 0x88, 0x72, 0xce, 0x8b, 0x84, 0x23,
0xb7, 0xd5, 0xd2, 0x1d, 0x4b, 0x02, 0xf5, 0x7e,
0x03, 0xe9, 0xe6, 0xb8, 0xa2, 0x58, 0xdc, 0x16,
0x61, 0x1b, 0xa0, 0x98, 0xab, 0x54, 0x34, 0x15,
0xe4, 0x15, 0xf1, 0x56, 0x99, 0x7a, 0x3e, 0xe2,
0x36, 0x65, 0x8f, 0xa0, 0x93, 0x26, 0x0d, 0xe3,
0xad, 0x42, 0x2e, 0x05, 0xe0, 0x46, 0xf9, 0xec,
0x29, 0x16, 0x1a, 0x37, 0x5f, 0x0e, 0xb4, 0xef,
0xfc, 0xef, 0x58, 0x28, 0x5c, 0x5d, 0x39, 0xed,
0x42, 0x5d, 0x7a, 0x62, 0xca, 0x12, 0x89, 0x6c,
0x4a, 0x92, 0xcb, 0x19, 0x46, 0xf2, 0x95, 0x2a,
0x48, 0x13, 0x3f, 0x07, 0xda, 0x36, 0x4d, 0x1b,
0xdf, 0x6b, 0x0f, 0x71, 0x39, 0x98, 0x3e, 0x69,
0x3c, 0x80, 0x05, 0x9b, 0x0e, 0xac, 0xd1, 0x47,
0x9b, 0xa9, 0xf2, 0x85, 0x77, 0x54, 0xed, 0xe7,
0x5f, 0x11, 0x2b, 0x07, 0xeb, 0xbf, 0x35, 0x34,
0x8b, 0xbf, 0x3e, 0x01, 0xe0, 0x2f, 0x2d, 0x47,
0x3d, 0xe3, 0x94, 0x53, 0xf9, 0x9d, 0xd2, 0x36,
0x75, 0x41, 0xca, 0xca, 0x3b, 0xa0, 0x11, 0x66,
0x34, 0x3d, 0x7b, 0x5b, 0x58, 0xa3, 0x7b, 0xd1,
0xb7, 0x52, 0x1d, 0xb2, 0xf1, 0x3b, 0x86, 0x70,
0x71, 0x32, 0xfe, 0x09, 0xf4, 0xcd, 0x09, 0xdc,
0x16, 0x18, 0xfa, 0x34, 0x01, 0xeb, 0xf9, 0xcc,
0x7b, 0x19, 0xfa, 0x94, 0xaa, 0x47, 0x20, 0x88,
0x13, 0x3d, 0x6c, 0xb2, 0xd3, 0x5c, 0x11, 0x79,
0xc8, 0xc8, 0xff, 0x36, 0x87, 0x58, 0xd5, 0x07,
0xd9, 0xf9, 0xa1, 0x7d, 0x46, 0xc1, 0x10, 0xfe,
0x31, 0x44, 0xce, 0x9b, 0x02, 0x2b, 0x42, 0xe4,
0x19, 0xeb, 0x4f, 0x53, 0x88, 0x61, 0x3b, 0xfc,
0x3e, 0x26, 0x24, 0x1a, 0x43, 0x2e, 0x87, 0x06,
0xbc, 0x58, 0xef, 0x76, 0x11, 0x72, 0x78, 0xde,
0xab, 0x6c, 0xf6, 0x92, 0x61, 0x82, 0x91, 0xb7
};
static const unsigned char dsa_q[] = {
0xa3, 0xbf, 0xd9, 0xab, 0x78, 0x84, 0x79, 0x4e,
0x38, 0x34, 0x50, 0xd5, 0x89, 0x1d, 0xc1, 0x8b,
0x65, 0x15, 0x7b, 0xdc, 0xfc, 0xda, 0xc5, 0x15,
0x18, 0x90, 0x28, 0x67
};
static const unsigned char dsa_g[] = {
0x68, 0x19, 0x27, 0x88, 0x69, 0xc7, 0xfd, 0x3d,
0x2d, 0x7b, 0x77, 0xf7, 0x7e, 0x81, 0x50, 0xd9,
0xad, 0x43, 0x3b, 0xea, 0x3b, 0xa8, 0x5e, 0xfc,
0x80, 0x41, 0x5a, 0xa3, 0x54, 0x5f, 0x78, 0xf7,
0x22, 0x96, 0xf0, 0x6c, 0xb1, 0x9c, 0xed, 0xa0,
0x6c, 0x94, 0xb0, 0x55, 0x1c, 0xfe, 0x6e, 0x6f,
0x86, 0x3e, 0x31, 0xd1, 0xde, 0x6e, 0xed, 0x7d,
0xab, 0x8b, 0x0c, 0x9d, 0xf2, 0x31, 0xe0, 0x84,
0x34, 0xd1, 0x18, 0x4f, 0x91, 0xd0, 0x33, 0x69,
0x6b, 0xb3, 0x82, 0xf8, 0x45, 0x5e, 0x98, 0x88,
0xf5, 0xd3, 0x1d, 0x47, 0x84, 0xec, 0x40, 0x12,
0x02, 0x46, 0xf4, 0xbe, 0xa6, 0x17, 0x94, 0xbb,
0xa5, 0x86, 0x6f, 0x09, 0x74, 0x64, 0x63, 0xbd,
0xf8, 0xe9, 0xe1, 0x08, 0xcd, 0x95, 0x29, 0xc3,
0xd0, 0xf6, 0xdf, 0x80, 0x31, 0x6e, 0x2e, 0x70,
0xaa, 0xeb, 0x1b, 0x26, 0xcd, 0xb8, 0xad, 0x97,
0xbc, 0x3d, 0x28, 0x7e, 0x0b, 0x8d, 0x61, 0x6c,
0x42, 0xe6, 0x5b, 0x87, 0xdb, 0x20, 0xde, 0xb7,
0x00, 0x5b, 0xc4, 0x16, 0x74, 0x7a, 0x64, 0x70,
0x14, 0x7a, 0x68, 0xa7, 0x82, 0x03, 0x88, 0xeb,
0xf4, 0x4d, 0x52, 0xe0, 0x62, 0x8a, 0xf9, 0xcf,
0x1b, 0x71, 0x66, 0xd0, 0x34, 0x65, 0xf3, 0x5a,
0xcc, 0x31, 0xb6, 0x11, 0x0c, 0x43, 0xda, 0xbc,
0x7c, 0x5d, 0x59, 0x1e, 0x67, 0x1e, 0xaf, 0x7c,
0x25, 0x2c, 0x1c, 0x14, 0x53, 0x36, 0xa1, 0xa4,
0xdd, 0xf1, 0x32, 0x44, 0xd5, 0x5e, 0x83, 0x56,
0x80, 0xca, 0xb2, 0x53, 0x3b, 0x82, 0xdf, 0x2e,
0xfe, 0x55, 0xec, 0x18, 0xc1, 0xe6, 0xcd, 0x00,
0x7b, 0xb0, 0x89, 0x75, 0x8b, 0xb1, 0x7c, 0x2c,
0xbe, 0x14, 0x44, 0x1b, 0xd0, 0x93, 0xae, 0x66,
0xe5, 0x97, 0x6d, 0x53, 0x73, 0x3f, 0x4f, 0xa3,
0x26, 0x97, 0x01, 0xd3, 0x1d, 0x23, 0xd4, 0x67
};
/* Helper function to retrieve and print a key BIGNUM field */
static void print_bn(BIO *bio, const EVP_PKEY *pkey, const char *name)
{
BIGNUM *bn = NULL;
if (EVP_PKEY_get_bn_param(pkey, name, &bn) == 0)
return;
BIO_printf(bio, " %s = 0x", name);
BN_print(bio, bn);
BIO_printf(bio, "\n");
BN_clear_free(bn);
}
/*
* Print DSA key info
*
* This method shows how to extract DSA data from an EVP_PKEY.
* There are simpler ways to print using EVP_PKEY_print_XXXX().
*/
static int dsa_print_key(const EVP_PKEY *pkey, int keypair,
OSSL_LIB_CTX *libctx, const char *propq)
{
int rv = 0, gindex, counter;
BIO *bio = BIO_new_fp(stdout, BIO_NOCLOSE);
unsigned char seed[2048];
size_t seedlen;
if (bio == NULL)
return 0;
/* Output hexadecimal representations of the BIGNUM objects. */
BIO_printf(bio, "\nPublic values:\n");
print_bn(bio, pkey, OSSL_PKEY_PARAM_FFC_P);
print_bn(bio, pkey, OSSL_PKEY_PARAM_FFC_Q);
print_bn(bio, pkey, OSSL_PKEY_PARAM_FFC_G);
if (EVP_PKEY_get_octet_string_param(pkey, OSSL_PKEY_PARAM_FFC_SEED, seed,
sizeof(seed), &seedlen) > 0) {
BIO_printf(bio, " %s\n", OSSL_PKEY_PARAM_FFC_SEED);
BIO_dump(bio, seed, seedlen);
}
if (EVP_PKEY_get_int_param(pkey, OSSL_PKEY_PARAM_FFC_GINDEX, &gindex) > 0) {
if (gindex != -1)
BIO_printf(bio, " %s = %d\n", OSSL_PKEY_PARAM_FFC_GINDEX, gindex);
}
if (EVP_PKEY_get_int_param(pkey, OSSL_PKEY_PARAM_FFC_PCOUNTER, &counter) > 0) {
if (counter != -1)
BIO_printf(bio, " %s = %d\n", OSSL_PKEY_PARAM_FFC_PCOUNTER, counter);
}
if (keypair) {
fprintf(stdout, "\nPrivate value:\n");
print_bn(bio, pkey, OSSL_PKEY_PARAM_PRIV_KEY);
/* Output a PEM encoding of the public key. */
if (PEM_write_bio_PUBKEY_ex(bio, pkey, libctx, propq) == 0) {
fprintf(stderr, "Failed to output PEM-encoded public key\n");
goto cleanup;
}
/*
* Output a PEM encoding of the private key. Please note that this output is
* not encrypted. You may wish to use the arguments to specify encryption of
* the key if you are storing it on disk. See PEM_write_bio_PrivateKey_ex(3).
*/
if (PEM_write_bio_PrivateKey_ex(bio, pkey, NULL, NULL, 0, NULL, NULL, libctx, propq) == 0) {
fprintf(stderr, "Failed to output PEM-encoded private key\n");
goto cleanup;
}
} else {
if (PEM_write_bio_Parameters(bio, pkey) == 0) {
fprintf(stderr, "Failed to output PEM-encoded params\n");
goto cleanup;
}
}
rv = 1;
cleanup:
BIO_free(bio);
return rv;
}