#include <openssl/x509.h>
#include <openssl/rand.h>
+static int dsa_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8inf, EVP_PKEY *pkey);
+
/* Extract a private key from a PKCS8 structure */
EVP_PKEY *EVP_PKCS82PKEY (PKCS8_PRIV_KEY_INFO *p8)
{
- EVP_PKEY *pkey;
- RSA *rsa;
- DSA *dsa;
- ASN1_INTEGER *dsapriv;
+ EVP_PKEY *pkey = NULL;
+#ifndef NO_RSA
+ RSA *rsa = NULL;
+#endif
+#ifndef NO_DSA
+ DSA *dsa = NULL;
+ ASN1_INTEGER *privkey;
+ ASN1_TYPE *t1, *t2, *param = NULL;
+ STACK_OF(ASN1_TYPE) *ndsa = NULL;
+ BN_CTX *ctx = NULL;
+ int plen;
+#endif
X509_ALGOR *a;
- STACK *ndsa;
- BN_CTX *ctx;
unsigned char *p;
- int plen, pkeylen;
+ int pkeylen;
char obj_tmp[80];
- switch (p8->broken) {
- case PKCS8_OK:
+ if(p8->pkey->type == V_ASN1_OCTET_STRING) {
+ p8->broken = PKCS8_OK;
p = p8->pkey->value.octet_string->data;
pkeylen = p8->pkey->value.octet_string->length;
- break;
-
- case PKCS8_NO_OCTET:
+ } else {
+ p8->broken = PKCS8_NO_OCTET;
p = p8->pkey->value.sequence->data;
pkeylen = p8->pkey->value.sequence->length;
- break;
-
- default:
- EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
- return NULL;
- break;
}
if (!(pkey = EVP_PKEY_new())) {
EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
a = p8->pkeyalg;
switch (OBJ_obj2nid(a->algorithm))
{
+#ifndef NO_RSA
case NID_rsaEncryption:
if (!(rsa = d2i_RSAPrivateKey (NULL, &p, pkeylen))) {
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
}
EVP_PKEY_assign_RSA (pkey, rsa);
break;
-
+#endif
+#ifndef NO_DSA
case NID_dsa:
/* PKCS#8 DSA is weird: you just get a private key integer
* and parameters in the AlgorithmIdentifier the pubkey must
* be recalculated.
*/
- /* Check for broken Netscape Database DSA PKCS#8, UGH! */
+ /* Check for broken DSA PKCS#8, UGH! */
if(*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) {
- if(!(ndsa = ASN1_seq_unpack(p, pkeylen,
- (char *(*)())d2i_ASN1_INTEGER,
- ASN1_STRING_free))) {
+ if(!(ndsa = ASN1_seq_unpack_ASN1_TYPE(p, pkeylen,
+ d2i_ASN1_TYPE,
+ ASN1_TYPE_free))) {
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- return NULL;
+ goto dsaerr;
}
- if(sk_num(ndsa) != 2 ) {
+ if(sk_ASN1_TYPE_num(ndsa) != 2 ) {
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- sk_pop_free(ndsa, ASN1_STRING_free);
- return NULL;
+ goto dsaerr;
}
- dsapriv = (ASN1_INTEGER *) sk_pop(ndsa);
- sk_pop_free(ndsa, ASN1_STRING_free);
- } else if (!(dsapriv=d2i_ASN1_INTEGER (NULL, &p, pkeylen))) {
+ /* Handle Two broken types:
+ * SEQUENCE {parameters, priv_key}
+ * SEQUENCE {pub_key, priv_key}
+ */
+
+ t1 = sk_ASN1_TYPE_value(ndsa, 0);
+ t2 = sk_ASN1_TYPE_value(ndsa, 1);
+ if(t1->type == V_ASN1_SEQUENCE) {
+ p8->broken = PKCS8_EMBEDDED_PARAM;
+ param = t1;
+ } else if(a->parameter->type == V_ASN1_SEQUENCE) {
+ p8->broken = PKCS8_NS_DB;
+ param = a->parameter;
+ } else {
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- return NULL;
+ goto dsaerr;
+ }
+
+ if(t2->type != V_ASN1_INTEGER) {
+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
+ goto dsaerr;
+ }
+ privkey = t2->value.integer;
+ } else {
+ if (!(privkey=d2i_ASN1_INTEGER (NULL, &p, pkeylen))) {
+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
+ goto dsaerr;
+ }
+ param = p8->pkeyalg->parameter;
}
- /* Retrieve parameters */
- if (a->parameter->type != V_ASN1_SEQUENCE) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_NO_DSA_PARAMETERS);
- return NULL;
+ if (!param || (param->type != V_ASN1_SEQUENCE)) {
+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
+ goto dsaerr;
}
- p = a->parameter->value.sequence->data;
- plen = a->parameter->value.sequence->length;
+ p = param->value.sequence->data;
+ plen = param->value.sequence->length;
if (!(dsa = d2i_DSAparams (NULL, &p, plen))) {
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- return NULL;
+ goto dsaerr;
}
/* We have parameters now set private key */
- if (!(dsa->priv_key = ASN1_INTEGER_to_BN(dsapriv, NULL))) {
+ if (!(dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL))) {
EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_DECODE_ERROR);
- DSA_free (dsa);
- return NULL;
+ goto dsaerr;
}
/* Calculate public key (ouch!) */
if (!(dsa->pub_key = BN_new())) {
EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
- DSA_free (dsa);
- return NULL;
+ goto dsaerr;
}
if (!(ctx = BN_CTX_new())) {
EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
- DSA_free (dsa);
- return NULL;
+ goto dsaerr;
}
if (!BN_mod_exp(dsa->pub_key, dsa->g,
dsa->priv_key, dsa->p, ctx)) {
EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_PUBKEY_ERROR);
- BN_CTX_free (ctx);
- DSA_free (dsa);
- return NULL;
+ goto dsaerr;
}
- EVP_PKEY_assign_DSA (pkey, dsa);
+ EVP_PKEY_assign_DSA(pkey, dsa);
BN_CTX_free (ctx);
+ if(ndsa) sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
+ else ASN1_INTEGER_free(privkey);
break;
-
+ dsaerr:
+ BN_CTX_free (ctx);
+ sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
+ DSA_free(dsa);
+ EVP_PKEY_free(pkey);
+ return NULL;
+ break;
+#endif
default:
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
if (!a->algorithm) strcpy (obj_tmp, "NULL");
return pkey;
}
+PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey)
+{
+ return EVP_PKEY2PKCS8_broken(pkey, PKCS8_OK);
+}
+
/* Turn a private key into a PKCS8 structure */
-PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey)
+PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8_broken(EVP_PKEY *pkey, int broken)
{
PKCS8_PRIV_KEY_INFO *p8;
- ASN1_INTEGER *dpkey;
- unsigned char *p, *q;
- int len;
+
if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {
EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
return NULL;
}
+ p8->broken = broken;
ASN1_INTEGER_set (p8->version, 0);
if (!(p8->pkeyalg->parameter = ASN1_TYPE_new ())) {
EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
PKCS8_PRIV_KEY_INFO_free (p8);
return NULL;
}
+ p8->pkey->type = V_ASN1_OCTET_STRING;
switch (EVP_PKEY_type(pkey->type)) {
+#ifndef NO_RSA
case EVP_PKEY_RSA:
+ if(p8->broken == PKCS8_NO_OCTET) p8->pkey->type = V_ASN1_SEQUENCE;
+
p8->pkeyalg->algorithm = OBJ_nid2obj(NID_rsaEncryption);
p8->pkeyalg->parameter->type = V_ASN1_NULL;
if (!ASN1_pack_string ((char *)pkey, i2d_PrivateKey,
return NULL;
}
break;
-
+#endif
+#ifndef NO_DSA
case EVP_PKEY_DSA:
- p8->pkeyalg->algorithm = OBJ_nid2obj(NID_dsa);
-
- /* get paramaters and place in AlgorithmIdentifier */
- len = i2d_DSAparams (pkey->pkey.dsa, NULL);
- if (!(p = Malloc(len))) {
- EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
- PKCS8_PRIV_KEY_INFO_free (p8);
- return NULL;
- }
- q = p;
- i2d_DSAparams (pkey->pkey.dsa, &q);
- p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
- p8->pkeyalg->parameter->value.sequence = ASN1_STRING_new();
- ASN1_STRING_set(p8->pkeyalg->parameter->value.sequence, p, len);
- Free(p);
- /* Get private key into an integer and pack */
- if (!(dpkey = BN_to_ASN1_INTEGER (pkey->pkey.dsa->priv_key, NULL))) {
- EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
- PKCS8_PRIV_KEY_INFO_free (p8);
- return NULL;
- }
-
- if (!ASN1_pack_string((char *)dpkey, i2d_ASN1_INTEGER,
- &p8->pkey->value.octet_string)) {
- EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
- ASN1_INTEGER_free (dpkey);
+ if(!dsa_pkey2pkcs8(p8, pkey)) {
PKCS8_PRIV_KEY_INFO_free (p8);
return NULL;
}
- ASN1_INTEGER_free (dpkey);
- break;
+ break;
+#endif
default:
EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
PKCS8_PRIV_KEY_INFO_free (p8);
return NULL;
}
- p8->pkey->type = V_ASN1_OCTET_STRING;
- RAND_seed (p8->pkey->value.octet_string->data,
- p8->pkey->value.octet_string->length);
+ RAND_add(p8->pkey->value.octet_string->data,
+ p8->pkey->value.octet_string->length, 0);
return p8;
}
}
}
+#ifndef NO_DSA
+static int dsa_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8, EVP_PKEY *pkey)
+{
+ ASN1_STRING *params;
+ ASN1_INTEGER *prkey;
+ ASN1_TYPE *ttmp;
+ STACK_OF(ASN1_TYPE) *ndsa;
+ unsigned char *p, *q;
+ int len;
+
+ p8->pkeyalg->algorithm = OBJ_nid2obj(NID_dsa);
+ len = i2d_DSAparams (pkey->pkey.dsa, NULL);
+ if (!(p = OPENSSL_malloc(len))) {
+ EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
+ PKCS8_PRIV_KEY_INFO_free (p8);
+ return 0;
+ }
+ q = p;
+ i2d_DSAparams (pkey->pkey.dsa, &q);
+ params = ASN1_STRING_new();
+ ASN1_STRING_set(params, p, len);
+ OPENSSL_free(p);
+ /* Get private key into integer */
+ if (!(prkey = BN_to_ASN1_INTEGER (pkey->pkey.dsa->priv_key, NULL))) {
+ EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
+ return 0;
+ }
+
+ switch(p8->broken) {
+
+ case PKCS8_OK:
+ case PKCS8_NO_OCTET:
+
+ if (!ASN1_pack_string((char *)prkey, i2d_ASN1_INTEGER,
+ &p8->pkey->value.octet_string)) {
+ EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
+ M_ASN1_INTEGER_free (prkey);
+ return 0;
+ }
+
+ M_ASN1_INTEGER_free (prkey);
+ p8->pkeyalg->parameter->value.sequence = params;
+ p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
+ break;
+
+ case PKCS8_NS_DB:
+
+ p8->pkeyalg->parameter->value.sequence = params;
+ p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
+ ndsa = sk_ASN1_TYPE_new_null();
+ ttmp = ASN1_TYPE_new();
+ if (!(ttmp->value.integer = BN_to_ASN1_INTEGER (pkey->pkey.dsa->pub_key, NULL))) {
+ EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
+ PKCS8_PRIV_KEY_INFO_free(p8);
+ return 0;
+ }
+ ttmp->type = V_ASN1_INTEGER;
+ sk_ASN1_TYPE_push(ndsa, ttmp);
+
+ ttmp = ASN1_TYPE_new();
+ ttmp->value.integer = prkey;
+ ttmp->type = V_ASN1_INTEGER;
+ sk_ASN1_TYPE_push(ndsa, ttmp);
+
+ p8->pkey->value.octet_string = ASN1_OCTET_STRING_new();
+
+ if (!ASN1_seq_pack_ASN1_TYPE(ndsa, i2d_ASN1_TYPE,
+ &p8->pkey->value.octet_string->data,
+ &p8->pkey->value.octet_string->length)) {
+
+ EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
+ sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
+ M_ASN1_INTEGER_free(prkey);
+ return 0;
+ }
+ sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
+ break;
+
+ case PKCS8_EMBEDDED_PARAM:
+
+ p8->pkeyalg->parameter->type = V_ASN1_NULL;
+ ndsa = sk_ASN1_TYPE_new_null();
+ ttmp = ASN1_TYPE_new();
+ ttmp->value.sequence = params;
+ ttmp->type = V_ASN1_SEQUENCE;
+ sk_ASN1_TYPE_push(ndsa, ttmp);
+
+ ttmp = ASN1_TYPE_new();
+ ttmp->value.integer = prkey;
+ ttmp->type = V_ASN1_INTEGER;
+ sk_ASN1_TYPE_push(ndsa, ttmp);
+
+ p8->pkey->value.octet_string = ASN1_OCTET_STRING_new();
+
+ if (!ASN1_seq_pack_ASN1_TYPE(ndsa, i2d_ASN1_TYPE,
+ &p8->pkey->value.octet_string->data,
+ &p8->pkey->value.octet_string->length)) {
+
+ EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
+ sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
+ M_ASN1_INTEGER_free (prkey);
+ return 0;
+ }
+ sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
+ break;
+ }
+ return 1;
+}
+#endif