implement PKCS #8 / SEC1 private key format for ECC

Submitted by: Nils Larsch
This commit is contained in:
Bodo Möller 2003-06-25 21:35:05 +00:00
parent 037f6e73f1
commit 0fbffe7a71
2 changed files with 84 additions and 41 deletions

View file

@ -232,11 +232,14 @@ int MAIN(int argc, char **argv)
pkey = load_key(bio_err, infile, informat, 1,
passin, e, "key");
if (!pkey) {
BIO_free_all(out);
return (1);
}
if (!(p8inf = EVP_PKEY2PKCS8_broken(pkey, p8_broken))) {
BIO_printf(bio_err, "Error converting key\n");
ERR_print_errors(bio_err);
EVP_PKEY_free(pkey);
BIO_free_all(out);
return (1);
}
if(nocrypt) {
@ -246,6 +249,9 @@ int MAIN(int argc, char **argv)
i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8inf);
else {
BIO_printf(bio_err, "Bad format specified for key\n");
PKCS8_PRIV_KEY_INFO_free(p8inf);
EVP_PKEY_free(pkey);
BIO_free_all(out);
return (1);
}
} else {
@ -253,7 +259,12 @@ int MAIN(int argc, char **argv)
else {
p8pass = pass;
if (EVP_read_pw_string(pass, sizeof pass, "Enter Encryption Password:", 1))
{
PKCS8_PRIV_KEY_INFO_free(p8inf);
EVP_PKEY_free(pkey);
BIO_free_all(out);
return (1);
}
}
app_RAND_load_file(NULL, bio_err, 0);
if (!(p8 = PKCS8_encrypt(pbe_nid, cipher,
@ -261,6 +272,9 @@ int MAIN(int argc, char **argv)
NULL, 0, iter, p8inf))) {
BIO_printf(bio_err, "Error encrypting key\n");
ERR_print_errors(bio_err);
PKCS8_PRIV_KEY_INFO_free(p8inf);
EVP_PKEY_free(pkey);
BIO_free_all(out);
return (1);
}
app_RAND_write_file(NULL, bio_err);
@ -270,6 +284,9 @@ int MAIN(int argc, char **argv)
i2d_PKCS8_bio(out, p8);
else {
BIO_printf(bio_err, "Bad format specified for key\n");
PKCS8_PRIV_KEY_INFO_free(p8inf);
EVP_PKEY_free(pkey);
BIO_free_all(out);
return (1);
}
X509_SIG_free(p8);

View file

@ -80,14 +80,15 @@ EVP_PKEY *EVP_PKCS82PKEY (PKCS8_PRIV_KEY_INFO *p8)
#ifndef OPENSSL_NO_DSA
DSA *dsa = NULL;
ASN1_TYPE *t1, *t2;
ASN1_INTEGER *privkey;
STACK_OF(ASN1_TYPE) *ndsa = NULL;
#endif
#ifndef OPENSSL_NO_EC
EC_KEY *eckey = NULL;
const unsigned char *p_tmp;
#endif
#if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_EC)
ASN1_TYPE *param = NULL;
ASN1_INTEGER *privkey;
BN_CTX *ctx = NULL;
int plen;
#endif
@ -221,11 +222,8 @@ EVP_PKEY *EVP_PKCS82PKEY (PKCS8_PRIV_KEY_INFO *p8)
#endif
#ifndef OPENSSL_NO_EC
case NID_X9_62_id_ecPublicKey:
if (!(privkey=d2i_ASN1_INTEGER (NULL, &p, pkeylen)))
{
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
goto ecerr;
}
p_tmp = p;
/* extract the ec parameters */
param = p8->pkeyalg->parameter;
if (!param || ((param->type != V_ASN1_SEQUENCE) &&
@ -269,35 +267,40 @@ EVP_PKEY *EVP_PKCS82PKEY (PKCS8_PRIV_KEY_INFO *p8)
}
/* We have parameters now set private key */
if (!(eckey->priv_key = ASN1_INTEGER_to_BN(privkey, NULL)))
if (!d2i_ECPrivateKey(&eckey, &p_tmp, pkeylen))
{
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_BN_DECODE_ERROR);
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
goto ecerr;
}
/* Calculate public key */
if ((eckey->pub_key = EC_POINT_new(eckey->group)) == NULL)
/* calculate public key (if necessary) */
if (!eckey->pub_key)
{
EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_EC_LIB);
goto ecerr;
}
if (!EC_POINT_copy(eckey->pub_key,
EC_GROUP_get0_generator(eckey->group)))
{
EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_EC_LIB);
goto ecerr;
}
if (!EC_POINT_mul(eckey->group, eckey->pub_key,
eckey->priv_key, NULL, NULL, ctx))
{
EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_EC_LIB);
goto ecerr;
/* the public key was not included in the SEC1 private
* key => calculate the public key */
eckey->pub_key = EC_POINT_new(eckey->group);
if (!eckey->pub_key)
{
EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_EC_LIB);
goto ecerr;
}
if (!EC_POINT_copy(eckey->pub_key,
EC_GROUP_get0_generator(eckey->group)))
{
EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_EC_LIB);
goto ecerr;
}
if (!EC_POINT_mul(eckey->group, eckey->pub_key,
eckey->priv_key, NULL, NULL, ctx))
{
EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_EC_LIB);
goto ecerr;
}
}
EVP_PKEY_assign_EC_KEY(pkey, eckey);
if (ctx)
BN_CTX_free(ctx);
if (privkey)
ASN1_INTEGER_free(privkey);
break;
ecerr:
if (ctx)
@ -526,7 +529,8 @@ static int eckey_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8, EVP_PKEY *pkey)
EC_KEY *eckey;
ASN1_INTEGER *prkey = NULL;
unsigned char *p, *pp;
int nid;
int nid, i, ret = 0;
unsigned int tmp_flags;
if (pkey->pkey.eckey == NULL || pkey->pkey.eckey->group == NULL)
{
@ -564,7 +568,6 @@ static int eckey_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8, EVP_PKEY *pkey)
}
else /* explicit parameters */
{
int i;
if ((i = i2d_ECParameters(eckey, NULL)) == 0)
{
EVPerr(EVP_F_EC_KEY_PKEY2PKCS8, ERR_R_EC_LIB);
@ -595,35 +598,58 @@ static int eckey_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8, EVP_PKEY *pkey)
}
/* set the private key */
if ((prkey = BN_to_ASN1_INTEGER(pkey->pkey.eckey->priv_key, NULL))
== NULL)
/* do not include the parameters in the SEC1 private key
* see PKCS#11 12.11 */
tmp_flags = pkey->pkey.eckey->enc_flag;
pkey->pkey.eckey->enc_flag |= EC_PKEY_NO_PARAMETERS;
i = i2d_ECPrivateKey(pkey->pkey.eckey, NULL);
if (!i)
{
EVPerr(EVP_F_EC_KEY_PKEY2PKCS8, ERR_R_ASN1_LIB);
pkey->pkey.eckey->enc_flag = tmp_flags;
EVPerr(EVP_F_EC_KEY_PKEY2PKCS8, ERR_R_EC_LIB);
return 0;
}
p = (unsigned char *) OPENSSL_malloc(i);
if (!p)
{
pkey->pkey.eckey->enc_flag = tmp_flags;
EVPerr(EVP_F_EC_KEY_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
return 0;
}
pp = p;
if (!i2d_ECPrivateKey(pkey->pkey.eckey, &pp))
{
pkey->pkey.eckey->enc_flag = tmp_flags;
EVPerr(EVP_F_EC_KEY_PKEY2PKCS8, ERR_R_EC_LIB);
OPENSSL_free(p);
return 0;
}
/* restore old encoding flags */
pkey->pkey.eckey->enc_flag = tmp_flags;
switch(p8->broken) {
case PKCS8_OK:
if (!ASN1_pack_string((char *)prkey, i2d_ASN1_INTEGER,
&p8->pkey->value.octet_string))
p8->pkey->value.octet_string = ASN1_OCTET_STRING_new();
if (!p8->pkey->value.octet_string ||
!M_ASN1_OCTET_STRING_set(p8->pkey->value.octet_string,
(const void *)p, i))
{
EVPerr(EVP_F_EC_KEY_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
M_ASN1_INTEGER_free(prkey);
return 0;
}
ASN1_INTEGER_free(prkey);
else
ret = 1;
break;
case PKCS8_NO_OCTET: /* RSA specific */
case PKCS8_NS_DB: /* DSA specific */
case PKCS8_EMBEDDED_PARAM: /* DSA specific */
default:
EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
return 0;
}
return 1;
OPENSSL_cleanse(p, (size_t)i);
OPENSSL_free(p);
return ret;
}
#endif