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openssl/providers/implementations/encode_decode/encode_key2any.c
Richard Levitte f2db0528d8 PROV: Add SM2 encoders and decoders, as well as support functionality 
The EC KEYMGMT implementation handled SM2 as well, except what's
needed to support decoding: loading functions for both EC and SM2 that
checks for the presence or absence of the SM2 curve the same way as
the EC / SM2 import functions.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14028)
2021-02-01 23:02:20 +01:00

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/*
* Copyright 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
*/
/*
* Low level APIs are deprecated for public use, but still ok for internal use.
*/
#include "internal/deprecated.h"
#include <openssl/core.h>
#include <openssl/core_dispatch.h>
#include <openssl/core_names.h>
#include <openssl/crypto.h>
#include <openssl/params.h>
#include <openssl/asn1.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/x509.h>
#include <openssl/pkcs12.h> /* PKCS8_encrypt() */
#include <openssl/dh.h>
#include <openssl/dsa.h>
#include <openssl/ec.h>
#include "internal/passphrase.h"
#include "internal/cryptlib.h"
#include "crypto/ecx.h"
#include "crypto/rsa.h"
#include "prov/implementations.h"
#include "prov/providercommonerr.h"
#include "prov/bio.h"
#include "prov/provider_ctx.h"
#include "prov/der_rsa.h"
#include "endecoder_local.h"
#if defined(OPENSSL_NO_DH) && defined(OPENSSL_NO_DSA) && defined(OPENSSL_NO_EC)
# define OPENSSL_NO_KEYPARAMS
#endif
struct key2any_ctx_st {
PROV_CTX *provctx;
/* Set to 1 if intending to encrypt/decrypt, otherwise 0 */
int cipher_intent;
EVP_CIPHER *cipher;
struct ossl_passphrase_data_st pwdata;
};
typedef int check_key_type_fn(const void *key, int nid);
typedef int key_to_paramstring_fn(const void *key, int nid,
void **str, int *strtype);
typedef int key_to_der_fn(BIO *out, const void *key,
int key_nid, const char *pemname,
key_to_paramstring_fn *p2s, i2d_of_void *k2d,
struct key2any_ctx_st *ctx);
typedef int write_bio_of_void_fn(BIO *bp, const void *x);
static PKCS8_PRIV_KEY_INFO *key_to_p8info(const void *key, int key_nid,
void *params, int params_type,
i2d_of_void *k2d)
{
/* der, derlen store the key DER output and its length */
unsigned char *der = NULL;
int derlen;
/* The final PKCS#8 info */
PKCS8_PRIV_KEY_INFO *p8info = NULL;
if ((p8info = PKCS8_PRIV_KEY_INFO_new()) == NULL
|| (derlen = k2d(key, &der)) <= 0
|| !PKCS8_pkey_set0(p8info, OBJ_nid2obj(key_nid), 0,
params_type, params, der, derlen)) {
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
PKCS8_PRIV_KEY_INFO_free(p8info);
OPENSSL_free(der);
p8info = NULL;
}
return p8info;
}
static X509_SIG *p8info_to_encp8(PKCS8_PRIV_KEY_INFO *p8info,
struct key2any_ctx_st *ctx)
{
X509_SIG *p8 = NULL;
char kstr[PEM_BUFSIZE];
size_t klen = 0;
if (ctx->cipher == NULL)
return NULL;
if (!ossl_pw_get_passphrase(kstr, sizeof(kstr), &klen, NULL, 1,
&ctx->pwdata)) {
ERR_raise(ERR_LIB_PROV, PROV_R_READ_KEY);
return NULL;
}
/* First argument == -1 means "standard" */
p8 = PKCS8_encrypt(-1, ctx->cipher, kstr, klen, NULL, 0, 0, p8info);
OPENSSL_cleanse(kstr, klen);
return p8;
}
static X509_SIG *key_to_encp8(const void *key, int key_nid,
void *params, int params_type,
i2d_of_void *k2d, struct key2any_ctx_st *ctx)
{
PKCS8_PRIV_KEY_INFO *p8info =
key_to_p8info(key, key_nid, params, params_type, k2d);
X509_SIG *p8 = p8info_to_encp8(p8info, ctx);
PKCS8_PRIV_KEY_INFO_free(p8info);
return p8;
}
static X509_PUBKEY *key_to_pubkey(const void *key, int key_nid,
void *params, int params_type,
i2d_of_void k2d)
{
/* der, derlen store the key DER output and its length */
unsigned char *der = NULL;
int derlen;
/* The final X509_PUBKEY */
X509_PUBKEY *xpk = NULL;
if ((xpk = X509_PUBKEY_new()) == NULL
|| (derlen = k2d(key, &der)) <= 0
|| !X509_PUBKEY_set0_param(xpk, OBJ_nid2obj(key_nid),
params_type, params, der, derlen)) {
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
X509_PUBKEY_free(xpk);
OPENSSL_free(der);
xpk = NULL;
}
return xpk;
}
/*
* key_to_pkcs8_* produce encoded output with the key data pkcs8
* in a structure. For private keys, that structure is PKCS#8, and for
* public keys, it's X.509 SubjectPublicKeyInfo. Parameters don't have
* any defined envelopment of that kind.
*/
static int key_to_pkcs8_der_priv_bio(BIO *out, const void *key,
int key_nid,
ossl_unused const char *pemname,
key_to_paramstring_fn *p2s,
i2d_of_void *k2d,
struct key2any_ctx_st *ctx)
{
int ret = 0;
void *str = NULL;
int strtype = V_ASN1_UNDEF;
if (p2s != NULL && !p2s(key, key_nid, &str, &strtype))
return 0;
if (ctx->cipher_intent) {
X509_SIG *p8 = key_to_encp8(key, key_nid, str, strtype, k2d, ctx);
if (p8 != NULL)
ret = i2d_PKCS8_bio(out, p8);
X509_SIG_free(p8);
} else {
PKCS8_PRIV_KEY_INFO *p8info =
key_to_p8info(key, key_nid, str, strtype, k2d);
if (p8info != NULL)
ret = i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8info);
PKCS8_PRIV_KEY_INFO_free(p8info);
}
return ret;
}
static int key_to_pkcs8_pem_priv_bio(BIO *out, const void *key,
int key_nid,
ossl_unused const char *pemname,
key_to_paramstring_fn *p2s,
i2d_of_void *k2d,
struct key2any_ctx_st *ctx)
{
int ret = 0;
void *str = NULL;
int strtype = V_ASN1_UNDEF;
if (p2s != NULL && !p2s(key, key_nid, &str, &strtype))
return 0;
if (ctx->cipher_intent) {
X509_SIG *p8 = key_to_encp8(key, key_nid, str, strtype, k2d, ctx);
if (p8 != NULL)
ret = PEM_write_bio_PKCS8(out, p8);
X509_SIG_free(p8);
} else {
PKCS8_PRIV_KEY_INFO *p8info =
key_to_p8info(key, key_nid, str, strtype, k2d);
if (p8info != NULL)
ret = PEM_write_bio_PKCS8_PRIV_KEY_INFO(out, p8info);
PKCS8_PRIV_KEY_INFO_free(p8info);
}
return ret;
}
static int key_to_spki_der_pub_bio(BIO *out, const void *key,
int key_nid,
ossl_unused const char *pemname,
key_to_paramstring_fn *p2s,
i2d_of_void *k2d,
struct key2any_ctx_st *ctx)
{
int ret = 0;
void *str = NULL;
int strtype = V_ASN1_UNDEF;
X509_PUBKEY *xpk = NULL;
if (p2s != NULL && !p2s(key, key_nid, &str, &strtype))
return 0;
xpk = key_to_pubkey(key, key_nid, str, strtype, k2d);
if (xpk != NULL)
ret = i2d_X509_PUBKEY_bio(out, xpk);
/* Also frees |str| */
X509_PUBKEY_free(xpk);
return ret;
}
static int key_to_spki_pem_pub_bio(BIO *out, const void *key,
int key_nid,
ossl_unused const char *pemname,
key_to_paramstring_fn *p2s,
i2d_of_void *k2d,
struct key2any_ctx_st *ctx)
{
int ret = 0;
void *str = NULL;
int strtype = V_ASN1_UNDEF;
X509_PUBKEY *xpk = NULL;
if (p2s != NULL && !p2s(key, key_nid, &str, &strtype))
return 0;
xpk = key_to_pubkey(key, key_nid, str, strtype, k2d);
if (xpk != NULL)
ret = PEM_write_bio_X509_PUBKEY(out, xpk);
/* Also frees |str| */
X509_PUBKEY_free(xpk);
return ret;
}
/*
* key_to_type_specific_* produce encoded output with type specific key data,
* no envelopment; the same kind of output as the type specific i2d_ and
* PEM_write_ functions, which is often a simple SEQUENCE of INTEGER.
*
* OpenSSL tries to discourage production of new keys in this form, because
* of the ambiguity when trying to recognise them, but can't deny that PKCS#1
* et al still are live standards.
*
* Note that these functions completely ignore p2s, and rather rely entirely
* on k2d to do the complete work.
*/
static int key_to_type_specific_der_bio(BIO *out, const void *key,
int key_nid,
ossl_unused const char *pemname,
key_to_paramstring_fn *p2s,
i2d_of_void *k2d,
struct key2any_ctx_st *ctx)
{
unsigned char *der = NULL;
int derlen;
int ret;
if ((derlen = k2d(key, &der)) <= 0) {
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
return 0;
}
ret = BIO_write(out, der, derlen);
OPENSSL_free(der);
return ret > 0;
}
#define key_to_type_specific_der_priv_bio key_to_type_specific_der_bio
#define key_to_type_specific_der_pub_bio key_to_type_specific_der_bio
#define key_to_type_specific_der_param_bio key_to_type_specific_der_bio
static int key_to_type_specific_pem_bio_cb(BIO *out, const void *key,
int key_nid, const char *pemname,
key_to_paramstring_fn *p2s,
i2d_of_void *k2d,
struct key2any_ctx_st *ctx,
pem_password_cb *cb, void *cbarg)
{
return
PEM_ASN1_write_bio(k2d, pemname, out, key, ctx->cipher,
NULL, 0, ossl_pw_pem_password, &ctx->pwdata) > 0;
}
static int key_to_type_specific_pem_priv_bio(BIO *out, const void *key,
int key_nid, const char *pemname,
key_to_paramstring_fn *p2s,
i2d_of_void *k2d,
struct key2any_ctx_st *ctx)
{
return key_to_type_specific_pem_bio_cb(out, key, key_nid, pemname,
p2s, k2d, ctx,
ossl_pw_pem_password, &ctx->pwdata);
}
static int key_to_type_specific_pem_pub_bio(BIO *out, const void *key,
int key_nid, const char *pemname,
key_to_paramstring_fn *p2s,
i2d_of_void *k2d,
struct key2any_ctx_st *ctx)
{
return key_to_type_specific_pem_bio_cb(out, key, key_nid, pemname,
p2s, k2d, ctx, NULL, NULL);
}
#ifndef OPENSSL_NO_KEYPARAMS
static int key_to_type_specific_pem_param_bio(BIO *out, const void *key,
int key_nid, const char *pemname,
key_to_paramstring_fn *p2s,
i2d_of_void *k2d,
struct key2any_ctx_st *ctx)
{
return key_to_type_specific_pem_bio_cb(out, key, key_nid, pemname,
p2s, k2d, ctx, NULL, NULL);
}
#endif
#define der_output_type "DER"
#define pem_output_type "PEM"
/* ---------------------------------------------------------------------- */
#ifndef OPENSSL_NO_DH
static int prepare_dh_params(const void *dh, int nid,
void **pstr, int *pstrtype)
{
ASN1_STRING *params = ASN1_STRING_new();
if (params == NULL) {
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
return 0;
}
if (nid == EVP_PKEY_DHX)
params->length = i2d_DHxparams(dh, &params->data);
else
params->length = i2d_DHparams(dh, &params->data);
if (params->length <= 0) {
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
ASN1_STRING_free(params);
return 0;
}
params->type = V_ASN1_SEQUENCE;
*pstr = params;
*pstrtype = V_ASN1_SEQUENCE;
return 1;
}
static int dh_spki_pub_to_der(const void *dh, unsigned char **pder)
{
const BIGNUM *bn = NULL;
ASN1_INTEGER *pub_key = NULL;
int ret;
if ((bn = DH_get0_pub_key(dh)) == NULL) {
ERR_raise(ERR_LIB_PROV, PROV_R_NOT_A_PUBLIC_KEY);
return 0;
}
if ((pub_key = BN_to_ASN1_INTEGER(bn, NULL)) == NULL) {
ERR_raise(ERR_LIB_PROV, PROV_R_BN_ERROR);
return 0;
}
ret = i2d_ASN1_INTEGER(pub_key, pder);
ASN1_STRING_clear_free(pub_key);
return ret;
}
static int dh_pkcs8_priv_to_der(const void *dh, unsigned char **pder)
{
const BIGNUM *bn = NULL;
ASN1_INTEGER *priv_key = NULL;
int ret;
if ((bn = DH_get0_priv_key(dh)) == NULL) {
ERR_raise(ERR_LIB_PROV, PROV_R_NOT_A_PRIVATE_KEY);
return 0;
}
if ((priv_key = BN_to_ASN1_INTEGER(bn, NULL)) == NULL) {
ERR_raise(ERR_LIB_PROV, PROV_R_BN_ERROR);
return 0;
}
ret = i2d_ASN1_INTEGER(priv_key, pder);
ASN1_STRING_clear_free(priv_key);
return ret;
}
static int dh_type_specific_params_to_der(const void *dh, unsigned char **pder)
{
if (DH_test_flags(dh, DH_FLAG_TYPE_DHX))
return i2d_DHxparams(dh, pder);
return i2d_DHparams(dh, pder);
}
/*
* DH doesn't have i2d_DHPrivateKey or i2d_DHPublicKey, so we can't make
* corresponding functions here.
*/
# define dh_type_specific_priv_to_der NULL
# define dh_type_specific_pub_to_der NULL
static int dh_check_key_type(const void *dh, int expected_type)
{
int type =
DH_test_flags(dh, DH_FLAG_TYPE_DHX) ? EVP_PKEY_DHX : EVP_PKEY_DH;
return type == expected_type;
}
# define dh_evp_type EVP_PKEY_DH
# define dhx_evp_type EVP_PKEY_DHX
# define dh_input_type "DH"
# define dhx_input_type "DHX"
# define dh_pem_type "DH"
# define dhx_pem_type "X9.42 DH"
#endif
/* ---------------------------------------------------------------------- */
#ifndef OPENSSL_NO_DSA
static int prepare_some_dsa_params(const void *dsa, int nid,
void **pstr, int *pstrtype)
{
ASN1_STRING *params = ASN1_STRING_new();
if (params == NULL) {
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
return 0;
}
params->length = i2d_DSAparams(dsa, &params->data);
if (params->length <= 0) {
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
ASN1_STRING_free(params);
return 0;
}
*pstrtype = V_ASN1_SEQUENCE;
*pstr = params;
return 1;
}
static int prepare_all_dsa_params(const void *dsa, int nid,
void **pstr, int *pstrtype)
{
const BIGNUM *p = DSA_get0_p(dsa);
const BIGNUM *q = DSA_get0_q(dsa);
const BIGNUM *g = DSA_get0_g(dsa);
if (p != NULL && q != NULL && g != NULL)
return prepare_some_dsa_params(dsa, nid, pstr, pstrtype);
*pstr = NULL;
*pstrtype = V_ASN1_UNDEF;
return 1;
}
static int prepare_dsa_params(const void *dsa, int nid,
void **pstr, int *pstrtype)
{
/*
* TODO(v3.0) implement setting save_parameters, see dsa_pub_encode()
* in crypto/dsa/dsa_ameth.c
*/
int save_parameters = 1;
return save_parameters
? prepare_all_dsa_params(dsa, nid, pstr, pstrtype)
: prepare_some_dsa_params(dsa, nid, pstr, pstrtype);
}
static int dsa_spki_pub_to_der(const void *dsa, unsigned char **pder)
{
const BIGNUM *bn = NULL;
ASN1_INTEGER *pub_key = NULL;
int ret;
if ((bn = DSA_get0_pub_key(dsa)) == NULL) {
ERR_raise(ERR_LIB_PROV, PROV_R_NOT_A_PUBLIC_KEY);
return 0;
}
if ((pub_key = BN_to_ASN1_INTEGER(bn, NULL)) == NULL) {
ERR_raise(ERR_LIB_PROV, PROV_R_BN_ERROR);
return 0;
}
ret = i2d_ASN1_INTEGER(pub_key, pder);
ASN1_STRING_clear_free(pub_key);
return ret;
}
static int dsa_pkcs8_priv_to_der(const void *dsa, unsigned char **pder)
{
const BIGNUM *bn = NULL;
ASN1_INTEGER *priv_key = NULL;
int ret;
if ((bn = DSA_get0_priv_key(dsa)) == NULL) {
ERR_raise(ERR_LIB_PROV, PROV_R_NOT_A_PRIVATE_KEY);
return 0;
}
if ((priv_key = BN_to_ASN1_INTEGER(bn, NULL)) == NULL) {
ERR_raise(ERR_LIB_PROV, PROV_R_BN_ERROR);
return 0;
}
ret = i2d_ASN1_INTEGER(priv_key, pder);
ASN1_STRING_clear_free(priv_key);
return ret;
}
# define dsa_type_specific_priv_to_der (i2d_of_void *)i2d_DSAPrivateKey
# define dsa_type_specific_pub_to_der (i2d_of_void *)i2d_DSAPublicKey
# define dsa_type_specific_params_to_der (i2d_of_void *)i2d_DSAparams
# define dsa_check_key_type NULL
# define dsa_evp_type EVP_PKEY_DSA
# define dsa_input_type "DSA"
# define dsa_pem_type "DSA"
#endif
/* ---------------------------------------------------------------------- */
#ifndef OPENSSL_NO_EC
static int prepare_ec_explicit_params(const void *eckey,
void **pstr, int *pstrtype)
{
ASN1_STRING *params = ASN1_STRING_new();
if (params == NULL) {
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
return 0;
}
params->length = i2d_ECParameters(eckey, &params->data);
if (params->length <= 0) {
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
ASN1_STRING_free(params);
return 0;
}
*pstrtype = V_ASN1_SEQUENCE;
*pstr = params;
return 1;
}
/*
* This implements EcpkParameters, where the CHOICE is based on whether there
* is a curve name (curve nid) to be found or not. See RFC 3279 for details.
* TODO: shouldn't we use i2d_ECPKParameters()?
*/
static int prepare_ec_params(const void *eckey, int nid,
void **pstr, int *pstrtype)
{
int curve_nid;
const EC_GROUP *group = EC_KEY_get0_group(eckey);
ASN1_OBJECT *params = NULL;
if (group == NULL)
return 0;
curve_nid = EC_GROUP_get_curve_name(group);
if (curve_nid != NID_undef) {
params = OBJ_nid2obj(curve_nid);
if (params == NULL)
return 0;
}
if (curve_nid != NID_undef
&& (EC_GROUP_get_asn1_flag(group) & OPENSSL_EC_NAMED_CURVE)) {
/* The CHOICE came to namedCurve */
if (OBJ_length(params) == 0) {
/* Some curves might not have an associated OID */
ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_OID);
ASN1_OBJECT_free(params);
return 0;
}
*pstr = params;
*pstrtype = V_ASN1_OBJECT;
return 1;
} else {
/* The CHOICE came to ecParameters */
return prepare_ec_explicit_params(eckey, pstr, pstrtype);
}
}
static int ec_spki_pub_to_der(const void *eckey, unsigned char **pder)
{
return i2o_ECPublicKey(eckey, pder);
}
static int ec_pkcs8_priv_to_der(const void *veckey, unsigned char **pder)
{
EC_KEY *eckey = (EC_KEY *)veckey;
unsigned int old_flags;
int ret = 0;
/*
* For PKCS8 the curve name appears in the PKCS8_PRIV_KEY_INFO object
* as the pkeyalg->parameter field. (For a named curve this is an OID)
* The pkey field is an octet string that holds the encoded
* ECPrivateKey SEQUENCE with the optional parameters field omitted.
* We omit this by setting the EC_PKEY_NO_PARAMETERS flag.
*/
old_flags = EC_KEY_get_enc_flags(eckey); /* save old flags */
EC_KEY_set_enc_flags(eckey, old_flags | EC_PKEY_NO_PARAMETERS);
ret = i2d_ECPrivateKey(eckey, pder);
EC_KEY_set_enc_flags(eckey, old_flags); /* restore old flags */
return ret; /* return the length of the der encoded data */
}
# define ec_type_specific_params_to_der (i2d_of_void *)i2d_ECParameters
# define ec_type_specific_pub_to_der (i2d_of_void *)i2o_ECPublicKey
# define ec_type_specific_priv_to_der (i2d_of_void *)i2d_ECPrivateKey
# define ec_check_key_type NULL
# define ec_evp_type EVP_PKEY_EC
# define ec_input_type "EC"
# define ec_pem_type "EC"
# ifndef OPENSSL_NO_SM2
# define sm2_evp_type EVP_PKEY_SM2
# define sm2_input_type "SM2"
# define sm2_pem_type "SM2"
# endif
#endif
/* ---------------------------------------------------------------------- */
#ifndef OPENSSL_NO_EC
# define prepare_ecx_params NULL
static int ecx_spki_pub_to_der(const void *vecxkey, unsigned char **pder)
{
const ECX_KEY *ecxkey = vecxkey;
unsigned char *keyblob;
if (ecxkey == NULL) {
ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_NULL_PARAMETER);
return 0;
}
keyblob = OPENSSL_memdup(ecxkey->pubkey, ecxkey->keylen);
if (keyblob == NULL) {
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
return 0;
}
*pder = keyblob;
return ecxkey->keylen;
}
static int ecx_pkcs8_priv_to_der(const void *vecxkey, unsigned char **pder)
{
const ECX_KEY *ecxkey = vecxkey;
ASN1_OCTET_STRING oct;
int keybloblen;
if (ecxkey == NULL || ecxkey->privkey == NULL) {
ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_NULL_PARAMETER);
return 0;
}
oct.data = ecxkey->privkey;
oct.length = ecxkey->keylen;
oct.flags = 0;
keybloblen = i2d_ASN1_OCTET_STRING(&oct, pder);
if (keybloblen < 0) {
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
return 0;
}
return keybloblen;
}
/*
* ED25519, ED448, X25519 and X448 only has PKCS#8 / SubjectPublicKeyInfo
* representation, so we don't define ecx_type_specific_[priv,pub,params]_to_der.
*/
# define ecx_check_key_type NULL
# define ed25519_evp_type EVP_PKEY_ED25519
# define ed448_evp_type EVP_PKEY_ED448
# define x25519_evp_type EVP_PKEY_X25519
# define x448_evp_type EVP_PKEY_X448
# define ed25519_input_type "ED25519"
# define ed448_input_type "ED448"
# define x25519_input_type "X25519"
# define x448_input_type "X448"
# define ed25519_pem_type "ED25519"
# define ed448_pem_type "ED448"
# define x25519_pem_type "X25519"
# define x448_pem_type "X448"
#endif
/* ---------------------------------------------------------------------- */
/*
* Helper functions to prepare RSA-PSS params for encoding. We would
* have simply written the whole AlgorithmIdentifier, but existing libcrypto
* functionality doesn't allow that.
*/
static int prepare_rsa_params(const void *rsa, int nid,
void **pstr, int *pstrtype)
{
const RSA_PSS_PARAMS_30 *pss = ossl_rsa_get0_pss_params_30((RSA *)rsa);
*pstr = NULL;
switch (RSA_test_flags(rsa, RSA_FLAG_TYPE_MASK)) {
case RSA_FLAG_TYPE_RSA:
/* If plain RSA, the parameters shall be NULL */
*pstrtype = V_ASN1_NULL;
return 1;
case RSA_FLAG_TYPE_RSASSAPSS:
if (ossl_rsa_pss_params_30_is_unrestricted(pss)) {
*pstrtype = V_ASN1_UNDEF;
return 1;
} else {
ASN1_STRING *astr = NULL;
WPACKET pkt;
unsigned char *str = NULL;
size_t str_sz = 0;
int i;
for (i = 0; i < 2; i++) {
switch (i) {
case 0:
if (!WPACKET_init_null_der(&pkt))
goto err;
break;
case 1:
if ((str = OPENSSL_malloc(str_sz)) == NULL
|| !WPACKET_init_der(&pkt, str, str_sz)) {
goto err;
}
break;
}
if (!ossl_DER_w_RSASSA_PSS_params(&pkt, -1, pss)
|| !WPACKET_finish(&pkt)
|| !WPACKET_get_total_written(&pkt, &str_sz))
goto err;
WPACKET_cleanup(&pkt);
/*
* If no PSS parameters are going to be written, there's no
* point going for another iteration.
* This saves us from getting |str| allocated just to have it
* immediately de-allocated.
*/
if (str_sz == 0)
break;
}
if ((astr = ASN1_STRING_new()) == NULL)
goto err;
*pstrtype = V_ASN1_SEQUENCE;
ASN1_STRING_set0(astr, str, (int)str_sz);
*pstr = astr;
return 1;
err:
OPENSSL_free(str);
return 0;
}
}
/* Currently unsupported RSA key type */
return 0;
}
/*
* RSA is extremely simple, as PKCS#1 is used for the PKCS#8 |privateKey|
* field as well as the SubjectPublicKeyInfo |subjectPublicKey| field.
*/
#define rsa_pkcs8_priv_to_der rsa_type_specific_priv_to_der
#define rsa_spki_pub_to_der rsa_type_specific_pub_to_der
#define rsa_type_specific_priv_to_der (i2d_of_void *)i2d_RSAPrivateKey
#define rsa_type_specific_pub_to_der (i2d_of_void *)i2d_RSAPublicKey
#define rsa_type_specific_params_to_der NULL
static int rsa_check_key_type(const void *rsa, int expected_type)
{
switch (RSA_test_flags(rsa, RSA_FLAG_TYPE_MASK)) {
case RSA_FLAG_TYPE_RSA:
return expected_type == EVP_PKEY_RSA;
case RSA_FLAG_TYPE_RSASSAPSS:
return expected_type == EVP_PKEY_RSA_PSS;
}
/* Currently unsupported RSA key type */
return EVP_PKEY_NONE;
}
#define rsa_evp_type EVP_PKEY_RSA
#define rsapss_evp_type EVP_PKEY_RSA_PSS
#define rsa_input_type "RSA"
#define rsapss_input_type "RSA-PSS"
#define rsa_pem_type "RSA"
#define rsapss_pem_type "RSA-PSS"
/* ---------------------------------------------------------------------- */
static OSSL_FUNC_decoder_newctx_fn key2any_newctx;
static OSSL_FUNC_decoder_freectx_fn key2any_freectx;
static void *key2any_newctx(void *provctx)
{
struct key2any_ctx_st *ctx = OPENSSL_zalloc(sizeof(*ctx));
if (ctx != NULL)
ctx->provctx = provctx;
return ctx;
}
static void key2any_freectx(void *vctx)
{
struct key2any_ctx_st *ctx = vctx;
ossl_pw_clear_passphrase_data(&ctx->pwdata);
EVP_CIPHER_free(ctx->cipher);
OPENSSL_free(ctx);
}
static const OSSL_PARAM *key2any_gettable_params(void *provctx, int structure)
{
static const OSSL_PARAM gettables[] = {
{ OSSL_ENCODER_PARAM_INPUT_TYPE, OSSL_PARAM_UTF8_PTR, NULL, 0, 0 },
{ OSSL_ENCODER_PARAM_OUTPUT_TYPE, OSSL_PARAM_UTF8_PTR, NULL, 0, 0 },
OSSL_PARAM_END,
};
static const OSSL_PARAM gettables_w_structure[] = {
{ OSSL_ENCODER_PARAM_INPUT_TYPE, OSSL_PARAM_UTF8_PTR, NULL, 0, 0 },
{ OSSL_ENCODER_PARAM_OUTPUT_TYPE, OSSL_PARAM_UTF8_PTR, NULL, 0, 0 },
{ OSSL_ENCODER_PARAM_OUTPUT_STRUCTURE, OSSL_PARAM_UTF8_PTR, NULL, 0, 0 },
OSSL_PARAM_END,
};
return structure ? gettables_w_structure : gettables;
}
static int key2any_get_params(OSSL_PARAM params[], const char *input_type,
const char *output_type,
const char *output_struct)
{
OSSL_PARAM *p;
p = OSSL_PARAM_locate(params, OSSL_ENCODER_PARAM_INPUT_TYPE);
if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, input_type))
return 0;
p = OSSL_PARAM_locate(params, OSSL_ENCODER_PARAM_OUTPUT_TYPE);
if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, output_type))
return 0;
if (output_struct != NULL) {
p = OSSL_PARAM_locate(params, OSSL_ENCODER_PARAM_OUTPUT_STRUCTURE);
if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, output_struct))
return 0;
}
return 1;
}
static const OSSL_PARAM *key2any_settable_ctx_params(ossl_unused void *provctx)
{
static const OSSL_PARAM settables[] = {
OSSL_PARAM_utf8_string(OSSL_ENCODER_PARAM_CIPHER, NULL, 0),
OSSL_PARAM_utf8_string(OSSL_ENCODER_PARAM_PROPERTIES, NULL, 0),
OSSL_PARAM_END,
};
return settables;
}
static int key2any_set_ctx_params(void *vctx, const OSSL_PARAM params[])
{
struct key2any_ctx_st *ctx = vctx;
OSSL_LIB_CTX *libctx = ossl_prov_ctx_get0_libctx(ctx->provctx);
const OSSL_PARAM *cipherp =
OSSL_PARAM_locate_const(params, OSSL_ENCODER_PARAM_CIPHER);
const OSSL_PARAM *propsp =
OSSL_PARAM_locate_const(params, OSSL_ENCODER_PARAM_PROPERTIES);
if (cipherp != NULL) {
const char *ciphername = NULL;
const char *props = NULL;
if (!OSSL_PARAM_get_utf8_string_ptr(cipherp, &ciphername))
return 0;
if (propsp != NULL && !OSSL_PARAM_get_utf8_string_ptr(propsp, &props))
return 0;
EVP_CIPHER_free(ctx->cipher);
ctx->cipher = NULL;
ctx->cipher_intent = ciphername != NULL;
if (ciphername != NULL
&& ((ctx->cipher =
EVP_CIPHER_fetch(libctx, ciphername, props)) == NULL))
return 0;
}
return 1;
}
static int key2any_check_selection(int selection, int selection_mask)
{
/*
* The selections are kinda sorta "levels", i.e. each selection given
* here is assumed to include those following.
*/
int checks[] = {
OSSL_KEYMGMT_SELECT_PRIVATE_KEY,
OSSL_KEYMGMT_SELECT_PUBLIC_KEY,
OSSL_KEYMGMT_SELECT_ALL_PARAMETERS
};
size_t i;
/* The decoder implementations made here support guessing */
if (selection == 0)
return 1;
for (i = 0; i < OSSL_NELEM(checks); i++) {
int check1 = (selection & checks[i]) != 0;
int check2 = (selection_mask & checks[i]) != 0;
/*
* If the caller asked for the currently checked bit(s), return
* whether the decoder description says it's supported.
*/
if (check1)
return check2;
}
/* This should be dead code, but just to be safe... */
return 0;
}
static int key2any_encode(struct key2any_ctx_st *ctx, OSSL_CORE_BIO *cout,
const void *key, int type, const char *pemname,
check_key_type_fn *checker,
key_to_der_fn *writer,
OSSL_PASSPHRASE_CALLBACK *pwcb, void *pwcbarg,
key_to_paramstring_fn *key2paramstring,
i2d_of_void *key2der)
{
int ret = 0;
if (key == NULL) {
ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_NULL_PARAMETER);
} else if (writer != NULL
&& (checker == NULL || checker(key, type))) {
BIO *out = bio_new_from_core_bio(ctx->provctx, cout);
if (out != NULL
&& (pwcb == NULL
|| ossl_pw_set_ossl_passphrase_cb(&ctx->pwdata, pwcb, pwcbarg)))
ret =
writer(out, key, type, pemname, key2paramstring, key2der, ctx);
BIO_free(out);
} else {
ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_INVALID_ARGUMENT);
}
return ret;
}
#define DO_PRIVATE_KEY_selection_mask OSSL_KEYMGMT_SELECT_PRIVATE_KEY
#define DO_PRIVATE_KEY(impl, type, kind, output) \
if ((selection & DO_PRIVATE_KEY_selection_mask) != 0) \
return key2any_encode(ctx, cout, key, impl##_evp_type, \
impl##_pem_type " PRIVATE KEY", \
type##_check_key_type, \
key_to_##kind##_##output##_priv_bio, \
cb, cbarg, prepare_##type##_params, \
type##_##kind##_priv_to_der);
#define DO_PUBLIC_KEY_selection_mask OSSL_KEYMGMT_SELECT_PUBLIC_KEY
#define DO_PUBLIC_KEY(impl, type, kind, output) \
if ((selection & DO_PUBLIC_KEY_selection_mask) != 0) \
return key2any_encode(ctx, cout, key, impl##_evp_type, \
impl##_pem_type " PUBLIC KEY", \
type##_check_key_type, \
key_to_##kind##_##output##_pub_bio, \
cb, cbarg, prepare_##type##_params, \
type##_##kind##_pub_to_der);
#define DO_PARAMETERS_selection_mask OSSL_KEYMGMT_SELECT_ALL_PARAMETERS
#define DO_PARAMETERS(impl, type, kind, output) \
if ((selection & DO_PARAMETERS_selection_mask) != 0) \
return key2any_encode(ctx, cout, key, impl##_evp_type, \
impl##_pem_type " PARAMETERS", \
type##_check_key_type, \
key_to_##kind##_##output##_param_bio, \
NULL, NULL, NULL, \
type##_##kind##_params_to_der);
/*-
* Implement the kinds of output structure that can be produced. They are
* referred to by name, and for each name, the following macros are defined
* (braces not included):
*
* {kind}_output_structure
*
* A string that names the output structure. This is used as a selection
* criterion for each implementation. It may be NULL, which means that
* there is only one possible output structure for the implemented output
* type.
*
* DO_{kind}_selection_mask
*
* A mask of selection bits that must not be zero. This is used as a
* selection criterion for each implementation.
* This mask must never be zero.
*
* DO_{kind}
*
* The performing macro. It must use the DO_ macros defined above,
* always in this order:
*
* - DO_PRIVATE_KEY
* - DO_PUBLIC_KEY
* - DO_PARAMETERS
*
* Any of those may be omitted, but the relative order must still be
* the same.
*/
/* PKCS#8 is a structure for private keys only */
#define PKCS8_output_structure "pkcs8"
#define DO_PKCS8_selection_mask DO_PRIVATE_KEY_selection_mask
#define DO_PKCS8(impl, type, output) \
DO_PRIVATE_KEY(impl, type, pkcs8, output)
/* SubjectPublicKeyInfo is a structure for public keys only */
#define SubjectPublicKeyInfo_output_structure "SubjectPublicKeyInfo"
#define DO_SubjectPublicKeyInfo_selection_mask DO_PUBLIC_KEY_selection_mask
#define DO_SubjectPublicKeyInfo(impl, type, output) \
DO_PUBLIC_KEY(impl, type, spki, output)
/*
* "type-specific" is a uniform name for key type specific output for private
* and public keys as well as key parameters. This is used internally in
* libcrypto so it doesn't have to have special knowledge about select key
* types, but also when no better name has been found. If there are more
* expressive DO_ names above, those are preferred.
*
* Three forms exist:
*
* - type_specific_keypair Only supports private and public key
* - type_specific_params Only supports parameters
* - type_specific Supports all parts of an EVP_PKEY
* - type_specific_no_pub Supports all parts of an EVP_PKEY
* except public key
*/
#define type_specific_params_output_structure "type-specific"
#define DO_type_specific_params_selection_mask DO_PARAMETERS_selection_mask
#define DO_type_specific_params(impl, type, output) \
DO_PARAMETERS(impl, type, type_specific, output)
#define type_specific_keypair_output_structure "type-specific"
#define DO_type_specific_keypair_selection_mask \
( DO_PRIVATE_KEY_selection_mask | DO_PUBLIC_KEY_selection_mask )
#define DO_type_specific_keypair(impl, type, output) \
DO_PRIVATE_KEY(impl, type, type_specific, output) \
DO_PUBLIC_KEY(impl, type, type_specific, output)
#define type_specific_output_structure "type-specific"
#define DO_type_specific_selection_mask \
( DO_type_specific_keypair_selection_mask \
| DO_type_specific_params_selection_mask )
#define DO_type_specific(impl, type, output) \
DO_type_specific_keypair(impl, type, output) \
DO_type_specific_params(impl, type, output)
#define type_specific_no_pub_output_structure "type-specific"
#define DO_type_specific_no_pub_selection_mask \
( DO_PRIVATE_KEY_selection_mask | DO_PARAMETERS_selection_mask)
#define DO_type_specific_no_pub(impl, type, output) \
DO_PRIVATE_KEY(impl, type, type_specific, output) \
DO_type_specific_params(impl, type, output)
/*
* Type specific aliases for the cases where we need to refer to them by
* type name.
* This only covers key types that are represented with i2d_{TYPE}PrivateKey,
* i2d_{TYPE}PublicKey and i2d_{TYPE}params / i2d_{TYPE}Parameters.
*/
#define RSA_output_structure "rsa"
#define DO_RSA_selection_mask DO_type_specific_keypair_selection_mask
#define DO_RSA(impl, type, output) DO_type_specific_keypair(impl, type, output)
#define DH_output_structure "dh"
#define DO_DH_selection_mask DO_type_specific_params_selection_mask
#define DO_DH(impl, type, output) DO_type_specific_params(impl, type, output)
#define DHX_output_structure "dhx"
#define DO_DHX_selection_mask DO_type_specific_params_selection_mask
#define DO_DHX(impl, type, output) DO_type_specific_params(impl, type, output)
#define DSA_output_structure "dsa"
#define DO_DSA_selection_mask DO_type_specific_selection_mask
#define DO_DSA(impl, type, output) DO_type_specific(impl, type, output)
#define EC_output_structure "ec"
#define DO_EC_selection_mask DO_type_specific_selection_mask
#define DO_EC(impl, type, output) DO_type_specific(impl, type, output)
#define SM2_output_structure "sm2"
#define DO_SM2_selection_mask DO_type_specific_selection_mask
#define DO_SM2(impl, type, output) DO_type_specific(impl, type, output)
/* PKCS#1 defines a structure for RSA private and public keys */
#define PKCS1_output_structure "pkcs1"
#define DO_PKCS1_selection_mask DO_RSA_selection_mask
#define DO_PKCS1(impl, type, output) DO_RSA(impl, type, output)
/* PKCS#3 defines a structure for DH parameters */
#define PKCS3_output_structure "pkcs3"
#define DO_PKCS3_selection_mask DO_DH_selection_mask
#define DO_PKCS3(impl, type, output) DO_DH(impl, type, output)
/* X9.42 defines a structure for DHx parameters */
#define X9_42_output_structure "X9.42"
#define DO_X9_42_selection_mask DO_DHX_selection_mask
#define DO_X9_42(impl, type, output) DO_DHX(impl, type, output)
/* X9.62 defines a structure for EC keys and parameters */
#define X9_62_output_structure "X9.62"
#define DO_X9_62_selection_mask DO_EC_selection_mask
#define DO_X9_62(impl, type, output) DO_EC(impl, type, output)
/*
* MAKE_ENCODER is the single driver for creating OSSL_DISPATCH tables.
* It takes the following arguments:
*
* impl This is the key type name that's being implemented.
* type This is the type name for the set of functions that implement
* the key type. For example, ed25519, ed448, x25519 and x448
* are all implemented with the exact same set of functions.
* evp_type The corresponding EVP_PKEY_xxx type macro for each key.
* Necessary because we currently use EVP_PKEY with legacy
* native keys internally. This will need to be refactored
* when that legacy support goes away.
* kind What kind of support to implement. These translate into
* the DO_##kind macros above.
* output The output type to implement. may be der or pem.
*
* The resulting OSSL_DISPATCH array gets the following name (expressed in
* C preprocessor terms) from those arguments:
*
* ossl_##impl##_to_##kind##_##output##_encoder_functions
*/
#define MAKE_ENCODER(impl, type, evp_type, kind, output) \
static OSSL_FUNC_encoder_gettable_params_fn \
impl##_to_##kind##_##output##_gettable_params; \
static OSSL_FUNC_encoder_get_params_fn \
impl##_to_##kind##_##output##_get_params; \
static OSSL_FUNC_encoder_import_object_fn \
impl##_to_##kind##_##output##_import_object; \
static OSSL_FUNC_encoder_free_object_fn \
impl##_to_##kind##_##output##_free_object; \
static OSSL_FUNC_encoder_encode_fn \
impl##_to_##kind##_##output##_encode; \
\
static const OSSL_PARAM * \
impl##_to_##kind##_##output##_gettable_params(void *provctx) \
{ \
return key2any_gettable_params(provctx, \
kind##_output_structure != NULL); \
} \
static int \
impl##_to_##kind##_##output##_get_params(OSSL_PARAM params[]) \
{ \
return key2any_get_params(params, impl##_input_type, \
output##_output_type, \
kind##_output_structure); \
} \
static void * \
impl##_to_##kind##_##output##_import_object(void *vctx, int selection, \
const OSSL_PARAM params[]) \
{ \
struct key2any_ctx_st *ctx = vctx; \
\
return ossl_prov_import_key(ossl_##impl##_keymgmt_functions, \
ctx->provctx, selection, params); \
} \
static void impl##_to_##kind##_##output##_free_object(void *key) \
{ \
ossl_prov_free_key(ossl_##impl##_keymgmt_functions, key); \
} \
static int impl##_to_##kind##_##output##_does_selection(void *ctx, \
int selection) \
{ \
return key2any_check_selection(selection, \
DO_##kind##_selection_mask); \
} \
static int \
impl##_to_##kind##_##output##_encode(void *ctx, OSSL_CORE_BIO *cout, \
const void *key, \
const OSSL_PARAM key_abstract[], \
int selection, \
OSSL_PASSPHRASE_CALLBACK *cb, \
void *cbarg) \
{ \
/* We don't deal with abstract objects */ \
if (key_abstract != NULL) { \
ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_INVALID_ARGUMENT); \
return 0; \
} \
DO_##kind(impl, type, output) \
\
ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_INVALID_ARGUMENT); \
return 0; \
} \
const OSSL_DISPATCH \
ossl_##impl##_to_##kind##_##output##_encoder_functions[] = { \
{ OSSL_FUNC_ENCODER_NEWCTX, \
(void (*)(void))key2any_newctx }, \
{ OSSL_FUNC_ENCODER_FREECTX, \
(void (*)(void))key2any_freectx }, \
{ OSSL_FUNC_ENCODER_GETTABLE_PARAMS, \
(void (*)(void))impl##_to_##kind##_##output##_gettable_params }, \
{ OSSL_FUNC_ENCODER_GET_PARAMS, \
(void (*)(void))impl##_to_##kind##_##output##_get_params }, \
{ OSSL_FUNC_ENCODER_SETTABLE_CTX_PARAMS, \
(void (*)(void))key2any_settable_ctx_params }, \
{ OSSL_FUNC_ENCODER_SET_CTX_PARAMS, \
(void (*)(void))key2any_set_ctx_params }, \
{ OSSL_FUNC_ENCODER_DOES_SELECTION, \
(void (*)(void))impl##_to_##kind##_##output##_does_selection }, \
{ OSSL_FUNC_ENCODER_IMPORT_OBJECT, \
(void (*)(void))impl##_to_##kind##_##output##_import_object }, \
{ OSSL_FUNC_ENCODER_FREE_OBJECT, \
(void (*)(void))impl##_to_##kind##_##output##_free_object }, \
{ OSSL_FUNC_ENCODER_ENCODE, \
(void (*)(void))impl##_to_##kind##_##output##_encode }, \
{ 0, NULL } \
}
/*
* Replacements for i2d_{TYPE}PrivateKey, i2d_{TYPE}PublicKey,
* i2d_{TYPE}params, as they exist.
*/
MAKE_ENCODER(rsa, rsa, EVP_PKEY_RSA, type_specific_keypair, der);
#ifndef OPENSSL_NO_DH
MAKE_ENCODER(dh, dh, EVP_PKEY_DH, type_specific_params, der);
MAKE_ENCODER(dhx, dh, EVP_PKEY_DHX, type_specific_params, der);
#endif
#ifndef OPENSSL_NO_DSA
MAKE_ENCODER(dsa, dsa, EVP_PKEY_DSA, type_specific, der);
#endif
#ifndef OPENSSL_NO_EC
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, type_specific_no_pub, der);
# ifndef OPENSSL_NO_SM2
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, type_specific_no_pub, der);
# endif
#endif
/*
* Replacements for PEM_write_bio_{TYPE}PrivateKey,
* PEM_write_bio_{TYPE}PublicKey, PEM_write_bio_{TYPE}params, as they exist.
*/
MAKE_ENCODER(rsa, rsa, EVP_PKEY_RSA, type_specific_keypair, pem);
#ifndef OPENSSL_NO_DH
MAKE_ENCODER(dh, dh, EVP_PKEY_DH, type_specific_params, pem);
MAKE_ENCODER(dhx, dh, EVP_PKEY_DHX, type_specific_params, pem);
#endif
#ifndef OPENSSL_NO_DSA
MAKE_ENCODER(dsa, dsa, EVP_PKEY_DSA, type_specific, pem);
#endif
#ifndef OPENSSL_NO_EC
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, type_specific_no_pub, pem);
# ifndef OPENSSL_NO_SM2
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, type_specific_no_pub, pem);
# endif
#endif
/*
* PKCS#8 and SubjectPublicKeyInfo support. This may duplicate some of the
* implementations specified above, but are more specific.
* The SubjectPublicKeyInfo implementations also replace the
* PEM_write_bio_{TYPE}_PUBKEY functions.
* For PEM, these are expected to be used by PEM_write_bio_PrivateKey(),
* PEM_write_bio_PUBKEY() and PEM_write_bio_Parameters().
*/
MAKE_ENCODER(rsa, rsa, EVP_PKEY_RSA, PKCS8, der);
MAKE_ENCODER(rsa, rsa, EVP_PKEY_RSA, PKCS8, pem);
MAKE_ENCODER(rsa, rsa, EVP_PKEY_RSA, SubjectPublicKeyInfo, der);
MAKE_ENCODER(rsa, rsa, EVP_PKEY_RSA, SubjectPublicKeyInfo, pem);
MAKE_ENCODER(rsapss, rsa, EVP_PKEY_RSA_PSS, PKCS8, der);
MAKE_ENCODER(rsapss, rsa, EVP_PKEY_RSA_PSS, PKCS8, pem);
MAKE_ENCODER(rsapss, rsa, EVP_PKEY_RSA_PSS, SubjectPublicKeyInfo, der);
MAKE_ENCODER(rsapss, rsa, EVP_PKEY_RSA_PSS, SubjectPublicKeyInfo, pem);
#ifndef OPENSSL_NO_DH
MAKE_ENCODER(dh, dh, EVP_PKEY_DH, PKCS8, der);
MAKE_ENCODER(dh, dh, EVP_PKEY_DH, PKCS8, pem);
MAKE_ENCODER(dh, dh, EVP_PKEY_DH, SubjectPublicKeyInfo, der);
MAKE_ENCODER(dh, dh, EVP_PKEY_DH, SubjectPublicKeyInfo, pem);
MAKE_ENCODER(dhx, dh, EVP_PKEY_DHX, PKCS8, der);
MAKE_ENCODER(dhx, dh, EVP_PKEY_DHX, PKCS8, pem);
MAKE_ENCODER(dhx, dh, EVP_PKEY_DHX, SubjectPublicKeyInfo, der);
MAKE_ENCODER(dhx, dh, EVP_PKEY_DHX, SubjectPublicKeyInfo, pem);
#endif
#ifndef OPENSSL_NO_DSA
MAKE_ENCODER(dsa, dsa, EVP_PKEY_DSA, PKCS8, der);
MAKE_ENCODER(dsa, dsa, EVP_PKEY_DSA, PKCS8, pem);
MAKE_ENCODER(dsa, dsa, EVP_PKEY_DSA, SubjectPublicKeyInfo, der);
MAKE_ENCODER(dsa, dsa, EVP_PKEY_DSA, SubjectPublicKeyInfo, pem);
#endif
#ifndef OPENSSL_NO_EC
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, PKCS8, der);
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, PKCS8, pem);
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, SubjectPublicKeyInfo, der);
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, SubjectPublicKeyInfo, pem);
# ifndef OPENSSL_NO_SM2
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, PKCS8, der);
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, PKCS8, pem);
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, SubjectPublicKeyInfo, der);
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, SubjectPublicKeyInfo, pem);
# endif
MAKE_ENCODER(ed25519, ecx, EVP_PKEY_ED25519, PKCS8, der);
MAKE_ENCODER(ed25519, ecx, EVP_PKEY_ED25519, PKCS8, pem);
MAKE_ENCODER(ed25519, ecx, EVP_PKEY_ED25519, SubjectPublicKeyInfo, der);
MAKE_ENCODER(ed25519, ecx, EVP_PKEY_ED25519, SubjectPublicKeyInfo, pem);
MAKE_ENCODER(ed448, ecx, EVP_PKEY_ED448, PKCS8, der);
MAKE_ENCODER(ed448, ecx, EVP_PKEY_ED448, PKCS8, pem);
MAKE_ENCODER(ed448, ecx, EVP_PKEY_ED448, SubjectPublicKeyInfo, der);
MAKE_ENCODER(ed448, ecx, EVP_PKEY_ED448, SubjectPublicKeyInfo, pem);
MAKE_ENCODER(x25519, ecx, EVP_PKEY_X25519, PKCS8, der);
MAKE_ENCODER(x25519, ecx, EVP_PKEY_X25519, PKCS8, pem);
MAKE_ENCODER(x25519, ecx, EVP_PKEY_X25519, SubjectPublicKeyInfo, der);
MAKE_ENCODER(x25519, ecx, EVP_PKEY_X25519, SubjectPublicKeyInfo, pem);
MAKE_ENCODER(x448, ecx, EVP_PKEY_ED448, PKCS8, der);
MAKE_ENCODER(x448, ecx, EVP_PKEY_ED448, PKCS8, pem);
MAKE_ENCODER(x448, ecx, EVP_PKEY_ED448, SubjectPublicKeyInfo, der);
MAKE_ENCODER(x448, ecx, EVP_PKEY_ED448, SubjectPublicKeyInfo, pem);
#endif
/*
* Support for key type specific output formats. Not all key types have
* this, we only aim to duplicate what is available in 1.1.1 as
* i2d_TYPEPrivateKey(), i2d_TYPEPublicKey() and i2d_TYPEparams().
* For example, there are no publicly available i2d_ function for
* ED25519, ED448, X25519 or X448, and they therefore only have PKCS#8
* and SubjectPublicKeyInfo implementations as implemented above.
*/
MAKE_ENCODER(rsa, rsa, EVP_PKEY_RSA, RSA, der);
MAKE_ENCODER(rsa, rsa, EVP_PKEY_RSA, RSA, pem);
#ifndef OPENSSL_NO_DH
MAKE_ENCODER(dh, dh, EVP_PKEY_DH, DH, der);
MAKE_ENCODER(dh, dh, EVP_PKEY_DH, DH, pem);
MAKE_ENCODER(dhx, dh, EVP_PKEY_DHX, DHX, der);
MAKE_ENCODER(dhx, dh, EVP_PKEY_DHX, DHX, pem);
#endif
#ifndef OPENSSL_NO_DSA
MAKE_ENCODER(dsa, dsa, EVP_PKEY_DSA, DSA, der);
MAKE_ENCODER(dsa, dsa, EVP_PKEY_DSA, DSA, pem);
#endif
#ifndef OPENSSL_NO_EC
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, EC, der);
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, EC, pem);
# ifndef OPENSSL_NO_SM2
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, SM2, der);
MAKE_ENCODER(sm2, ec, EVP_PKEY_EC, SM2, pem);
# endif
#endif
/* Convenience structure names */
MAKE_ENCODER(rsa, rsa, EVP_PKEY_RSA, PKCS1, der);
MAKE_ENCODER(rsa, rsa, EVP_PKEY_RSA, PKCS1, pem);
MAKE_ENCODER(rsapss, rsa, EVP_PKEY_RSA_PSS, PKCS1, der);
MAKE_ENCODER(rsapss, rsa, EVP_PKEY_RSA_PSS, PKCS1, pem);
#ifndef OPENSSL_NO_DH
MAKE_ENCODER(dh, dh, EVP_PKEY_DH, PKCS3, der); /* parameters only */
MAKE_ENCODER(dh, dh, EVP_PKEY_DH, PKCS3, pem); /* parameters only */
MAKE_ENCODER(dhx, dh, EVP_PKEY_DHX, X9_42, der); /* parameters only */
MAKE_ENCODER(dhx, dh, EVP_PKEY_DHX, X9_42, pem); /* parameters only */
#endif
#ifndef OPENSSL_NO_EC
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, X9_62, der);
MAKE_ENCODER(ec, ec, EVP_PKEY_EC, X9_62, pem);
#endif
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