static int ecx_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
{
const ECX_KEY *ecxkey = pkey->pkey.ecx;
ASN1_OCTET_STRING oct;
unsigned char *penc = NULL;
int penclen;
if (ecxkey == NULL || ecxkey->privkey == NULL) {
ECerr(EC_F_ECX_PRIV_ENCODE, EC_R_INVALID_PRIVATE_KEY);
return 0;
}
oct.data = ecxkey->privkey;
oct.length = KEYLEN(pkey);
oct.flags = 0;
penclen = i2d_ASN1_OCTET_STRING(&oct, &penc);
if (penclen < 0) {
ECerr(EC_F_ECX_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
return 0;
}
if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(pkey->ameth->pkey_id), 0,
V_ASN1_UNDEF, NULL, penc, penclen)) {
OPENSSL_clear_free(penc, penclen);
ECerr(EC_F_ECX_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
return 0;
}
return 1;
}
static int rsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
{
unsigned char *rk = NULL;
int rklen;
ASN1_STRING *str;
int strtype;
if (!rsa_param_encode(pkey, &str, &strtype))
return 0;
rklen = i2d_RSAPrivateKey(pkey->pkey.rsa, &rk);
if (rklen <= 0) {
RSAerr(RSA_F_RSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
ASN1_STRING_free(str);
return 0;
}
if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(pkey->ameth->pkey_id), 0,
strtype, str, rk, rklen)) {
RSAerr(RSA_F_RSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
ASN1_STRING_free(str);
return 0;
}
return 1;
}
static int dsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
{
ASN1_STRING *params = NULL;
ASN1_INTEGER *prkey = NULL;
unsigned char *dp = NULL;
int dplen;
if (!pkey->pkey.dsa || !pkey->pkey.dsa->priv_key)
{
DSAerr(DSA_F_DSA_PRIV_ENCODE,DSA_R_MISSING_PARAMETERS);
goto err;
}
params = ASN1_STRING_new();
if (!params)
{
DSAerr(DSA_F_DSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE);
goto err;
}
params->length = i2d_DSAparams(pkey->pkey.dsa, ¶ms->data);
if (params->length <= 0)
{
DSAerr(DSA_F_DSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE);
goto err;
}
params->type = V_ASN1_SEQUENCE;
/* Get private key into integer */
prkey = BN_to_ASN1_INTEGER(pkey->pkey.dsa->priv_key, NULL);
if (!prkey)
{
DSAerr(DSA_F_DSA_PRIV_ENCODE,DSA_R_BN_ERROR);
goto err;
}
dplen = i2d_ASN1_INTEGER(prkey, &dp);
ASN1_INTEGER_free(prkey);
if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_dsa), 0,
V_ASN1_SEQUENCE, params, dp, dplen))
goto err;
return 1;
err:
if (dp != NULL)
OPENSSL_free(dp);
if (params != NULL)
ASN1_STRING_free(params);
if (prkey != NULL)
ASN1_INTEGER_free(prkey);
return 0;
}
static int eckey_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
{
EC_KEY *ec_key;
unsigned char *ep, *p;
int eplen, ptype;
void *pval;
unsigned int tmp_flags, old_flags;
ec_key = pkey->pkey.ec;
if (!eckey_param2type(&ptype, &pval, ec_key))
{
ECerr(EC_F_ECKEY_PRIV_ENCODE, EC_R_DECODE_ERROR);
return 0;
}
/* set the private key */
/* do not include the parameters in the SEC1 private key
* see PKCS#11 12.11 */
old_flags = EC_KEY_get_enc_flags(ec_key);
tmp_flags = old_flags | EC_PKEY_NO_PARAMETERS;
EC_KEY_set_enc_flags(ec_key, tmp_flags);
eplen = i2d_ECPrivateKey(ec_key, NULL);
if (!eplen)
{
EC_KEY_set_enc_flags(ec_key, old_flags);
ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_EC_LIB);
return 0;
}
ep = (unsigned char *) OPENSSL_malloc(eplen);
if (!ep)
{
EC_KEY_set_enc_flags(ec_key, old_flags);
ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
return 0;
}
p = ep;
if (!i2d_ECPrivateKey(ec_key, &p))
{
EC_KEY_set_enc_flags(ec_key, old_flags);
OPENSSL_free(ep);
ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_EC_LIB);
return 0;
}
/* restore old encoding flags */
EC_KEY_set_enc_flags(ec_key, old_flags);
if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_X9_62_id_ecPublicKey), 0,
ptype, pval, ep, eplen))
return 0;
return 1;
}
static int dsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey) {
ASN1_STRING *params = NULL;
ASN1_INTEGER *prkey = NULL;
uint8_t *dp = NULL;
int dplen;
if (!pkey->pkey.dsa || !pkey->pkey.dsa->priv_key) {
OPENSSL_PUT_ERROR(EVP, EVP_R_MISSING_PARAMETERS);
goto err;
}
params = ASN1_STRING_new();
if (!params) {
OPENSSL_PUT_ERROR(EVP, ERR_R_MALLOC_FAILURE);
goto err;
}
params->length = i2d_DSAparams(pkey->pkey.dsa, ¶ms->data);
if (params->length <= 0) {
OPENSSL_PUT_ERROR(EVP, ERR_R_MALLOC_FAILURE);
goto err;
}
params->type = V_ASN1_SEQUENCE;
/* Get private key into integer. */
prkey = BN_to_ASN1_INTEGER(pkey->pkey.dsa->priv_key, NULL);
if (!prkey) {
OPENSSL_PUT_ERROR(EVP, ERR_LIB_BN);
goto err;
}
dplen = i2d_ASN1_INTEGER(prkey, &dp);
ASN1_INTEGER_free(prkey);
prkey = NULL;
if (!PKCS8_pkey_set0(p8, (ASN1_OBJECT *)OBJ_nid2obj(NID_dsa), 0,
V_ASN1_SEQUENCE, params, dp, dplen)) {
goto err;
}
return 1;
err:
OPENSSL_free(dp);
ASN1_STRING_free(params);
ASN1_INTEGER_free(prkey);
return 0;
}
static int dh_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
{
ASN1_STRING *params = NULL;
ASN1_INTEGER *prkey = NULL;
unsigned char *dp = NULL;
int dplen;
params = ASN1_STRING_new();
if (!params) {
DHerr(DH_F_DH_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
goto err;
}
params->length = i2d_dhp(pkey, pkey->pkey.dh, ¶ms->data);
if (params->length <= 0) {
DHerr(DH_F_DH_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
goto err;
}
params->type = V_ASN1_SEQUENCE;
/* Get private key into integer */
prkey = BN_to_ASN1_INTEGER(pkey->pkey.dh->priv_key, NULL);
if (!prkey) {
DHerr(DH_F_DH_PRIV_ENCODE, DH_R_BN_ERROR);
goto err;
}
dplen = i2d_ASN1_INTEGER(prkey, &dp);
ASN1_STRING_clear_free(prkey);
prkey = NULL;
if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(pkey->ameth->pkey_id), 0,
V_ASN1_SEQUENCE, params, dp, dplen))
goto err;
return 1;
err:
if (dp != NULL)
OPENSSL_free(dp);
if (params != NULL)
ASN1_STRING_free(params);
if (prkey != NULL)
ASN1_STRING_clear_free(prkey);
return 0;
}
/* ----------------------------------------------------------------------*/
static int priv_encode_gost(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk)
{
ASN1_OBJECT *algobj = OBJ_nid2obj(EVP_PKEY_base_id(pk));
ASN1_STRING *params = encode_gost_algor_params(pk);
unsigned char *priv_buf = NULL;
int priv_len;
ASN1_INTEGER *asn1key = NULL;
if (!params) {
return 0;
}
asn1key = BN_to_ASN1_INTEGER(gost_get0_priv_key(pk), NULL);
priv_len = i2d_ASN1_INTEGER(asn1key, &priv_buf);
ASN1_INTEGER_free(asn1key);
return PKCS8_pkey_set0(p8, algobj, 0, V_ASN1_SEQUENCE, params,
priv_buf, priv_len);
}
static int rsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey) {
uint8_t *encoded;
size_t encoded_len;
if (!RSA_private_key_to_bytes(&encoded, &encoded_len, pkey->pkey.rsa)) {
return 0;
}
/* TODO(fork): const correctness in next line. */
if (!PKCS8_pkey_set0(p8, (ASN1_OBJECT *)OBJ_nid2obj(NID_rsaEncryption), 0,
V_ASN1_NULL, NULL, encoded, encoded_len)) {
OPENSSL_free(encoded);
OPENSSL_PUT_ERROR(EVP, ERR_R_MALLOC_FAILURE);
return 0;
}
return 1;
}
static int rsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
{
unsigned char *rk = NULL;
int rklen;
rklen = i2d_RSAPrivateKey(pkey->pkey.rsa, &rk);
if (rklen <= 0) {
RSAerr(RSA_F_RSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
return 0;
}
if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_rsaEncryption), 0,
V_ASN1_NULL, NULL, rk, rklen)) {
RSAerr(RSA_F_RSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
return 0;
}
return 1;
}
static int eckey_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
{
EC_KEY ec_key = *(pkey->pkey.ec);
uint8_t *ep, *p;
int eplen, ptype;
void *pval;
unsigned int old_flags;
if (!eckey_param2type(&ptype, &pval, &ec_key)) {
ECerr(EC_F_ECKEY_PRIV_ENCODE, EC_R_DECODE_ERROR);
return 0;
}
/* set the private key */
/* do not include the parameters in the SEC1 private key
* see PKCS#11 12.11 */
old_flags = EC_KEY_get_enc_flags(&ec_key);
EC_KEY_set_enc_flags(&ec_key, old_flags | EC_PKEY_NO_PARAMETERS);
eplen = i2d_ECPrivateKey(&ec_key, NULL);
if (!eplen) {
ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_EC_LIB);
return 0;
}
ep = malloc(eplen);
if (ep == NULL) {
ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
return 0;
}
p = ep;
if (!i2d_ECPrivateKey(&ec_key, &p)) {
free(ep);
ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_EC_LIB);
return 0;
}
if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_X9_62_id_ecPublicKey), 0,
ptype, pval, ep, eplen))
return 0;
return 1;
}
/* ----------------------------------------------------------------------*/
static int priv_encode_gost(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk)
{
ASN1_OBJECT *algobj = OBJ_nid2obj(EVP_PKEY_base_id(pk));
ASN1_STRING *params = encode_gost_algor_params(pk);
unsigned char /**priv_buf = NULL,*/ *buf = NULL;
int key_len = pkey_bits_gost(pk), /*priv_len = 0,*/ i = 0;
/*ASN1_STRING *octet = NULL;*/
if (!params) {
return 0;
}
key_len = (key_len < 0) ? 0 : key_len / 8;
if (key_len == 0 || !(buf = OPENSSL_malloc(key_len))) {
return 0;
}
if (!store_bignum(gost_get0_priv_key(pk), buf, key_len)) {
OPENSSL_free(buf);
return 0;
}
/* Convert buf to Little-endian */
for (i = 0; i < key_len / 2; i++) {
unsigned char tmp = buf[i];
buf[i] = buf[key_len - 1 - i];
buf[key_len - 1 - i] = tmp;
}
/*
octet = ASN1_STRING_new();
ASN1_OCTET_STRING_set(octet, buf, key_len);
priv_len = i2d_ASN1_OCTET_STRING(octet, &priv_buf);
ASN1_STRING_free(octet);
OPENSSL_free(buf);
return PKCS8_pkey_set0(p8, algobj, 0, V_ASN1_SEQUENCE, params,
priv_buf, priv_len); */
return PKCS8_pkey_set0(p8, algobj, 0, V_ASN1_SEQUENCE, params,
buf, key_len);
}
static int rsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey) {
uint8_t *rk = NULL;
int rklen;
rklen = i2d_RSAPrivateKey(pkey->pkey.rsa, &rk);
if (rklen <= 0) {
OPENSSL_PUT_ERROR(EVP, rsa_priv_encode, ERR_R_MALLOC_FAILURE);
return 0;
}
/* TODO(fork): const correctness in next line. */
if (!PKCS8_pkey_set0(p8, (ASN1_OBJECT *)OBJ_nid2obj(NID_rsaEncryption), 0,
V_ASN1_NULL, NULL, rk, rklen)) {
OPENSSL_PUT_ERROR(EVP, rsa_priv_encode, ERR_R_MALLOC_FAILURE);
return 0;
}
return 1;
}
static int
priv_encode_gost01(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk)
{
ASN1_OBJECT *algobj =
OBJ_nid2obj(GostR3410_get_pk_digest(GOST_KEY_get_digest(pk->pkey.gost)));
ASN1_STRING *params = encode_gost01_algor_params(pk);
unsigned char *priv_buf = NULL;
int priv_len;
ASN1_INTEGER *asn1key = NULL;
if (params == NULL)
return 0;
asn1key = BN_to_ASN1_INTEGER(GOST_KEY_get0_private_key(pk->pkey.gost),
NULL);
if (asn1key == NULL) {
ASN1_STRING_free(params);
return 0;
}
priv_len = i2d_ASN1_INTEGER(asn1key, &priv_buf);
ASN1_INTEGER_free(asn1key);
return PKCS8_pkey_set0(p8, algobj, 0, V_ASN1_SEQUENCE, params, priv_buf,
priv_len);
}
