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b808665265
openssl/providers/implementations/keymgmt/dsa_kmgmt.c
Shane Lontis b808665265 Update core_names.h fields and document most fields. 
Renamed some values in core_names i.e Some DH specific names were changed to use DH instead of FFC.
Added some strings values related to RSA keys.
Moved set_params related docs out of EVP_PKEY_CTX_ctrl.pod into its own file.
Updated Keyexchange and signature code and docs.
Moved some common DSA/DH docs into a shared EVP_PKEY-FFC.pod.
Moved Ed25519.pod into EVP_SIGNATURE-ED25519.pod and reworked it.

Added some usage examples. As a result of the usage examples the following change was also made:
ec allows OSSL_PKEY_PARAM_USE_COFACTOR_ECDH as a settable gen parameter.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11610)
2020-05-26 13:53:07 +10:00

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/*
* Copyright 2019-2020 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
*/
/*
* DSA low level APIs are deprecated for public use, but still ok for
* internal use.
*/
#include "internal/deprecated.h"
#include "e_os.h" /* strcasecmp */
#include <openssl/core_numbers.h>
#include <openssl/core_names.h>
#include <openssl/bn.h>
#include <openssl/err.h>
#include "prov/providercommon.h"
#include "prov/implementations.h"
#include "prov/provider_ctx.h"
#include "crypto/dsa.h"
#include "internal/sizes.h"
#include "internal/nelem.h"
#include "internal/param_build_set.h"
static OSSL_OP_keymgmt_new_fn dsa_newdata;
static OSSL_OP_keymgmt_free_fn dsa_freedata;
static OSSL_OP_keymgmt_gen_init_fn dsa_gen_init;
static OSSL_OP_keymgmt_gen_set_template_fn dsa_gen_set_template;
static OSSL_OP_keymgmt_gen_set_params_fn dsa_gen_set_params;
static OSSL_OP_keymgmt_gen_settable_params_fn dsa_gen_settable_params;
static OSSL_OP_keymgmt_gen_fn dsa_gen;
static OSSL_OP_keymgmt_gen_cleanup_fn dsa_gen_cleanup;
static OSSL_OP_keymgmt_get_params_fn dsa_get_params;
static OSSL_OP_keymgmt_gettable_params_fn dsa_gettable_params;
static OSSL_OP_keymgmt_has_fn dsa_has;
static OSSL_OP_keymgmt_match_fn dsa_match;
static OSSL_OP_keymgmt_validate_fn dsa_validate;
static OSSL_OP_keymgmt_import_fn dsa_import;
static OSSL_OP_keymgmt_import_types_fn dsa_import_types;
static OSSL_OP_keymgmt_export_fn dsa_export;
static OSSL_OP_keymgmt_export_types_fn dsa_export_types;
#define DSA_DEFAULT_MD "SHA256"
#define DSA_POSSIBLE_SELECTIONS \
(OSSL_KEYMGMT_SELECT_KEYPAIR | OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS)
struct dsa_gen_ctx {
OPENSSL_CTX *libctx;
FFC_PARAMS *ffc_params;
int selection;
/* All these parameters are used for parameter generation only */
size_t pbits;
size_t qbits;
EVP_MD *md;
unsigned char *seed; /* optional FIPS186-4 param for testing */
size_t seedlen;
int gindex; /* optional FIPS186-4 generator index (ignored if -1) */
int gen_type; /* DSA_PARAMGEN_TYPE_FIPS_186_2 or DSA_PARAMGEN_TYPE_FIPS_186_4 */
int pcounter;
int hindex;
OSSL_CALLBACK *cb;
void *cbarg;
};
typedef struct dh_name2id_st{
const char *name;
int id;
} DSA_GENTYPE_NAME2ID;
static const DSA_GENTYPE_NAME2ID dsatype2id[]=
{
{ "default", DSA_PARAMGEN_TYPE_FIPS_186_4 },
{ "fips186_4", DSA_PARAMGEN_TYPE_FIPS_186_4 },
{ "fips186_2", DSA_PARAMGEN_TYPE_FIPS_186_2 },
};
static int dsa_gen_type_name2id(const char *name)
{
size_t i;
for (i = 0; i < OSSL_NELEM(dsatype2id); ++i) {
if (strcasecmp(dsatype2id[i].name, name) == 0)
return dsatype2id[i].id;
}
return -1;
}
static int dsa_key_todata(DSA *dsa, OSSL_PARAM_BLD *bld, OSSL_PARAM params[])
{
const BIGNUM *priv = NULL, *pub = NULL;
if (dsa == NULL)
return 0;
DSA_get0_key(dsa, &pub, &priv);
if (priv != NULL
&& !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_PRIV_KEY, priv))
return 0;
if (pub != NULL
&& !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_PUB_KEY, pub))
return 0;
return 1;
}
static void *dsa_newdata(void *provctx)
{
return dsa_new_with_ctx(PROV_LIBRARY_CONTEXT_OF(provctx));
}
static void dsa_freedata(void *keydata)
{
DSA_free(keydata);
}
static int dsa_has(void *keydata, int selection)
{
DSA *dsa = keydata;
int ok = 0;
if (dsa != NULL) {
if ((selection & DSA_POSSIBLE_SELECTIONS) != 0)
ok = 1;
if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
ok = ok && (DSA_get0_pub_key(dsa) != NULL);
if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
ok = ok && (DSA_get0_priv_key(dsa) != NULL);
if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
ok = ok && (DSA_get0_p(dsa) != NULL && DSA_get0_g(dsa) != NULL);
}
return ok;
}
static int dsa_match(const void *keydata1, const void *keydata2, int selection)
{
const DSA *dsa1 = keydata1;
const DSA *dsa2 = keydata2;
int ok = 1;
if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
ok = ok
&& BN_cmp(DSA_get0_pub_key(dsa1), DSA_get0_pub_key(dsa2)) == 0;
if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
ok = ok
&& BN_cmp(DSA_get0_priv_key(dsa1), DSA_get0_priv_key(dsa2)) == 0;
if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
FFC_PARAMS *dsaparams1 = dsa_get0_params((DSA *)dsa1);
FFC_PARAMS *dsaparams2 = dsa_get0_params((DSA *)dsa2);
ok = ok && ffc_params_cmp(dsaparams1, dsaparams2, 1);
}
return ok;
}
static int dsa_import(void *keydata, int selection, const OSSL_PARAM params[])
{
DSA *dsa = keydata;
int ok = 1;
if (dsa == NULL)
return 0;
if ((selection & DSA_POSSIBLE_SELECTIONS) == 0)
return 0;
if ((selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0)
ok = ok && dsa_ffc_params_fromdata(dsa, params);
if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
ok = ok && dsa_key_fromdata(dsa, params);
return ok;
}
static int dsa_export(void *keydata, int selection, OSSL_CALLBACK *param_cb,
void *cbarg)
{
DSA *dsa = keydata;
OSSL_PARAM_BLD *tmpl = OSSL_PARAM_BLD_new();
OSSL_PARAM *params = NULL;
int ok = 1;
if (dsa == NULL)
goto err;
if ((selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0)
ok = ok && ffc_params_todata(dsa_get0_params(dsa), tmpl, NULL);
if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
ok = ok && dsa_key_todata(dsa, tmpl, NULL);
if (!ok
|| (params = OSSL_PARAM_BLD_to_param(tmpl)) == NULL)
goto err;;
ok = param_cb(params, cbarg);
OSSL_PARAM_BLD_free_params(params);
err:
OSSL_PARAM_BLD_free(tmpl);
return ok;
}
/* IMEXPORT = IMPORT + EXPORT */
# define DSA_IMEXPORTABLE_PARAMETERS \
OSSL_PARAM_BN(OSSL_PKEY_PARAM_FFC_P, NULL, 0), \
OSSL_PARAM_BN(OSSL_PKEY_PARAM_FFC_Q, NULL, 0), \
OSSL_PARAM_BN(OSSL_PKEY_PARAM_FFC_G, NULL, 0), \
OSSL_PARAM_BN(OSSL_PKEY_PARAM_FFC_COFACTOR, NULL, 0), \
OSSL_PARAM_int(OSSL_PKEY_PARAM_FFC_GINDEX, NULL), \
OSSL_PARAM_int(OSSL_PKEY_PARAM_FFC_PCOUNTER, NULL), \
OSSL_PARAM_int(OSSL_PKEY_PARAM_FFC_H, NULL), \
OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_FFC_SEED, NULL, 0)
# define DSA_IMEXPORTABLE_PUBLIC_KEY \
OSSL_PARAM_BN(OSSL_PKEY_PARAM_PUB_KEY, NULL, 0)
# define DSA_IMEXPORTABLE_PRIVATE_KEY \
OSSL_PARAM_BN(OSSL_PKEY_PARAM_PRIV_KEY, NULL, 0)
static const OSSL_PARAM dsa_all_types[] = {
DSA_IMEXPORTABLE_PARAMETERS,
DSA_IMEXPORTABLE_PUBLIC_KEY,
DSA_IMEXPORTABLE_PRIVATE_KEY,
OSSL_PARAM_END
};
static const OSSL_PARAM dsa_parameter_types[] = {
DSA_IMEXPORTABLE_PARAMETERS,
OSSL_PARAM_END
};
static const OSSL_PARAM dsa_key_types[] = {
DSA_IMEXPORTABLE_PUBLIC_KEY,
DSA_IMEXPORTABLE_PRIVATE_KEY,
OSSL_PARAM_END
};
static const OSSL_PARAM *dsa_types[] = {
NULL, /* Index 0 = none of them */
dsa_parameter_types, /* Index 1 = parameter types */
dsa_key_types, /* Index 2 = key types */
dsa_all_types /* Index 3 = 1 + 2 */
};
static const OSSL_PARAM *dsa_imexport_types(int selection)
{
int type_select = 0;
if ((selection & OSSL_KEYMGMT_SELECT_ALL_PARAMETERS) != 0)
type_select += 1;
if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
type_select += 2;
return dsa_types[type_select];
}
static const OSSL_PARAM *dsa_import_types(int selection)
{
return dsa_imexport_types(selection);
}
static const OSSL_PARAM *dsa_export_types(int selection)
{
return dsa_imexport_types(selection);
}
static ossl_inline int dsa_get_params(void *key, OSSL_PARAM params[])
{
DSA *dsa = key;
OSSL_PARAM *p;
if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
&& !OSSL_PARAM_set_int(p, DSA_bits(dsa)))
return 0;
if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL
&& !OSSL_PARAM_set_int(p, DSA_security_bits(dsa)))
return 0;
if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
&& !OSSL_PARAM_set_int(p, DSA_size(dsa)))
return 0;
if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
&& !OSSL_PARAM_set_utf8_string(p, DSA_DEFAULT_MD))
return 0;
return ffc_params_todata(dsa_get0_params(dsa), NULL, params)
&& dsa_key_todata(dsa, NULL, params);
}
static const OSSL_PARAM dsa_params[] = {
OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
DSA_IMEXPORTABLE_PARAMETERS,
DSA_IMEXPORTABLE_PUBLIC_KEY,
DSA_IMEXPORTABLE_PRIVATE_KEY,
OSSL_PARAM_END
};
static const OSSL_PARAM *dsa_gettable_params(void)
{
return dsa_params;
}
static int dsa_validate_domparams(DSA *dsa)
{
int status = 0;
return dsa_check_params(dsa, &status);
}
static int dsa_validate_public(DSA *dsa)
{
int status = 0;
const BIGNUM *pub_key = NULL;
DSA_get0_key(dsa, &pub_key, NULL);
if (pub_key == NULL)
return 0;
return dsa_check_pub_key(dsa, pub_key, &status);
}
static int dsa_validate_private(DSA *dsa)
{
int status = 0;
const BIGNUM *priv_key = NULL;
DSA_get0_key(dsa, NULL, &priv_key);
if (priv_key == NULL)
return 0;
return dsa_check_priv_key(dsa, priv_key, &status);
}
static int dsa_validate(void *keydata, int selection)
{
DSA *dsa = keydata;
int ok = 0;
if ((selection & DSA_POSSIBLE_SELECTIONS) != 0)
ok = 1;
if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
ok = ok && dsa_validate_domparams(dsa);
if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
ok = ok && dsa_validate_public(dsa);
if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
ok = ok && dsa_validate_private(dsa);
/* If the whole key is selected, we do a pairwise validation */
if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR)
== OSSL_KEYMGMT_SELECT_KEYPAIR)
ok = ok && dsa_check_pairwise(dsa);
return ok;
}
static void *dsa_gen_init(void *provctx, int selection)
{
OPENSSL_CTX *libctx = PROV_LIBRARY_CONTEXT_OF(provctx);
struct dsa_gen_ctx *gctx = NULL;
if ((selection & DSA_POSSIBLE_SELECTIONS) == 0)
return NULL;
if ((gctx = OPENSSL_zalloc(sizeof(*gctx))) != NULL) {
gctx->selection = selection;
gctx->libctx = libctx;
gctx->pbits = 2048;
gctx->qbits = 224;
gctx->md = NULL;
gctx->gen_type = DSA_PARAMGEN_TYPE_FIPS_186_4;
gctx->gindex = -1;
gctx->pcounter = -1;
gctx->hindex = 0;
}
return gctx;
}
static int dsa_gen_set_template(void *genctx, void *templ)
{
struct dsa_gen_ctx *gctx = genctx;
DSA *dsa = templ;
if (gctx == NULL || dsa == NULL)
return 0;
gctx->ffc_params = dsa_get0_params(dsa);
return 1;
}
static int dsa_set_gen_seed(struct dsa_gen_ctx *gctx, unsigned char *seed,
size_t seedlen)
{
OPENSSL_clear_free(gctx->seed, gctx->seedlen);
gctx->seed = NULL;
gctx->seedlen = 0;
if (seed != NULL && seedlen > 0) {
gctx->seed = OPENSSL_memdup(seed, seedlen);
if (gctx->seed == NULL)
return 0;
gctx->seedlen = seedlen;
}
return 1;
}
static int dsa_gen_set_params(void *genctx, const OSSL_PARAM params[])
{
struct dsa_gen_ctx *gctx = genctx;
const OSSL_PARAM *p;
if (gctx == NULL)
return 0;
p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_TYPE);
if (p != NULL) {
if (p->data_type != OSSL_PARAM_UTF8_STRING
|| ((gctx->gen_type = dsa_gen_type_name2id(p->data)) == -1)) {
ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_INVALID_ARGUMENT);
return 0;
}
}
p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_GINDEX);
if (p != NULL
&& !OSSL_PARAM_get_int(p, &gctx->gindex))
return 0;
p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_PCOUNTER);
if (p != NULL
&& !OSSL_PARAM_get_int(p, &gctx->pcounter))
return 0;
p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_H);
if (p != NULL
&& !OSSL_PARAM_get_int(p, &gctx->hindex))
return 0;
p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_SEED);
if (p != NULL
&& (p->data_type != OSSL_PARAM_OCTET_STRING
|| !dsa_set_gen_seed(gctx, p->data, p->data_size)))
return 0;
if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_PBITS)) != NULL
&& !OSSL_PARAM_get_size_t(p, &gctx->pbits))
return 0;
if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_QBITS)) != NULL
&& !OSSL_PARAM_get_size_t(p, &gctx->qbits))
return 0;
p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_DIGEST);
if (p != NULL) {
const OSSL_PARAM *p1;
char mdprops[OSSL_MAX_PROPQUERY_SIZE] = { '\0' };
char *str = mdprops;
if (p->data_type != OSSL_PARAM_UTF8_STRING)
return 0;
p1 = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_DIGEST_PROPS);
if (p1 != NULL) {
if (!OSSL_PARAM_get_utf8_string(p1, &str, sizeof(mdprops)))
return 0;
}
EVP_MD_free(gctx->md);
gctx->md = EVP_MD_fetch(gctx->libctx, p->data, mdprops);
if (gctx->md == NULL)
return 0;
}
return 1;
}
static const OSSL_PARAM *dsa_gen_settable_params(void *provctx)
{
static OSSL_PARAM settable[] = {
OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_FFC_TYPE, NULL, 0),
OSSL_PARAM_size_t(OSSL_PKEY_PARAM_FFC_PBITS, NULL),
OSSL_PARAM_size_t(OSSL_PKEY_PARAM_FFC_QBITS, NULL),
OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_FFC_DIGEST, NULL, 0),
OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_FFC_DIGEST_PROPS, NULL, 0),
OSSL_PARAM_int(OSSL_PKEY_PARAM_FFC_GINDEX, NULL),
OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_FFC_SEED, NULL, 0),
OSSL_PARAM_int(OSSL_PKEY_PARAM_FFC_PCOUNTER, NULL),
OSSL_PARAM_int(OSSL_PKEY_PARAM_FFC_H, NULL),
OSSL_PARAM_END
};
return settable;
}
static int dsa_gencb(int p, int n, BN_GENCB *cb)
{
struct dsa_gen_ctx *gctx = BN_GENCB_get_arg(cb);
OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END, OSSL_PARAM_END };
params[0] = OSSL_PARAM_construct_int(OSSL_GEN_PARAM_POTENTIAL, &p);
params[1] = OSSL_PARAM_construct_int(OSSL_GEN_PARAM_ITERATION, &n);
return gctx->cb(params, gctx->cbarg);
}
static void *dsa_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
{
struct dsa_gen_ctx *gctx = genctx;
DSA *dsa = NULL;
BN_GENCB *gencb = NULL;
int ret = 0;
FFC_PARAMS *ffc;
if (gctx == NULL)
return NULL;
dsa = dsa_new_with_ctx(gctx->libctx);
if (dsa == NULL)
return NULL;
gctx->cb = osslcb;
gctx->cbarg = cbarg;
gencb = BN_GENCB_new();
if (gencb != NULL)
BN_GENCB_set(gencb, dsa_gencb, genctx);
ffc = dsa_get0_params(dsa);
/* Copy the template value if one was passed */
if (gctx->ffc_params != NULL
&& !ffc_params_copy(ffc, gctx->ffc_params))
goto end;
if (gctx->seed != NULL
&& !ffc_params_set_seed(ffc, gctx->seed, gctx->seedlen))
goto end;
if (gctx->gindex != -1) {
ffc_params_set_gindex(ffc, gctx->gindex);
if (gctx->pcounter != -1)
ffc_params_set_pcounter(ffc, gctx->pcounter);
} else if (gctx->hindex != 0) {
ffc_params_set_h(ffc, gctx->hindex);
}
if ((gctx->selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
if (dsa_generate_ffc_parameters(dsa, gctx->gen_type,
gctx->pbits, gctx->qbits, gctx->md,
gencb) <= 0)
goto end;
}
if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
if (ffc->p == NULL
|| ffc->q == NULL
|| ffc->g == NULL)
goto end;
if (DSA_generate_key(dsa) <= 0)
goto end;
}
ret = 1;
end:
if (ret <= 0) {
DSA_free(dsa);
dsa = NULL;
}
BN_GENCB_free(gencb);
return dsa;
}
static void dsa_gen_cleanup(void *genctx)
{
struct dsa_gen_ctx *gctx = genctx;
if (gctx == NULL)
return;
OPENSSL_clear_free(gctx->seed, gctx->seedlen);
EVP_MD_free(gctx->md);
OPENSSL_free(gctx);
}
const OSSL_DISPATCH dsa_keymgmt_functions[] = {
{ OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))dsa_newdata },
{ OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))dsa_gen_init },
{ OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE, (void (*)(void))dsa_gen_set_template },
{ OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))dsa_gen_set_params },
{ OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
(void (*)(void))dsa_gen_settable_params },
{ OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))dsa_gen },
{ OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))dsa_gen_cleanup },
{ OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))dsa_freedata },
{ OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))dsa_get_params },
{ OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))dsa_gettable_params },
{ OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))dsa_has },
{ OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))dsa_match },
{ OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))dsa_validate },
{ OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))dsa_import },
{ OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))dsa_import_types },
{ OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))dsa_export },
{ OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))dsa_export_types },
{ 0, NULL }
};
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