/* evp_pkey.c */
-/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project 1999.
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
+ * 1999.
*/
/* ====================================================================
- * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
+ * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
#include <stdio.h>
#include <stdlib.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
#include <openssl/x509.h>
#include <openssl/rand.h>
+#include "internal/asn1_int.h"
+#include "internal/evp_int.h"
/* Extract a private key from a PKCS8 structure */
-EVP_PKEY *EVP_PKCS82PKEY (PKCS8_PRIV_KEY_INFO *p8)
+EVP_PKEY *EVP_PKCS82PKEY(PKCS8_PRIV_KEY_INFO *p8)
{
- EVP_PKEY *pkey;
-#ifndef NO_RSA
- RSA *rsa;
-#endif
-#ifndef NO_DSA
- DSA *dsa;
- ASN1_INTEGER *dsapriv;
- STACK *ndsa;
- BN_CTX *ctx;
- int plen;
-#endif
- X509_ALGOR *a;
- unsigned char *p;
- int pkeylen;
- char obj_tmp[80];
+ EVP_PKEY *pkey = NULL;
+ ASN1_OBJECT *algoid;
+ char obj_tmp[80];
+
+ if (!PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8))
+ return NULL;
+
+ if ((pkey = EVP_PKEY_new()) == NULL) {
+ EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+
+ if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(algoid))) {
+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
+ i2t_ASN1_OBJECT(obj_tmp, 80, algoid);
+ ERR_add_error_data(2, "TYPE=", obj_tmp);
+ goto error;
+ }
+
+ if (pkey->ameth->priv_decode) {
+ if (!pkey->ameth->priv_decode(pkey, p8)) {
+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_PRIVATE_KEY_DECODE_ERROR);
+ goto error;
+ }
+ } else {
+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_METHOD_NOT_SUPPORTED);
+ goto error;
+ }
+
+ return pkey;
+
+ error:
+ EVP_PKEY_free(pkey);
+ return NULL;
+}
- switch (p8->broken) {
- case PKCS8_OK:
- p = p8->pkey->value.octet_string->data;
- pkeylen = p8->pkey->value.octet_string->length;
- break;
+PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey)
+{
+ return EVP_PKEY2PKCS8_broken(pkey, PKCS8_OK);
+}
- case PKCS8_NO_OCTET:
- p = p8->pkey->value.sequence->data;
- pkeylen = p8->pkey->value.sequence->length;
- break;
+/* Turn a private key into a PKCS8 structure */
- 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);
- return NULL;
- }
- 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);
- return NULL;
- }
- 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! */
- if(*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) {
- if(!(ndsa = ASN1_seq_unpack(p, pkeylen,
- (char *(*)())d2i_ASN1_INTEGER,
- ASN1_STRING_free))) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- return NULL;
- }
- if(sk_num(ndsa) != 2 ) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- sk_pop_free(ndsa, ASN1_STRING_free);
- return NULL;
- }
- dsapriv = (ASN1_INTEGER *) sk_pop(ndsa);
- sk_pop_free(ndsa, ASN1_STRING_free);
- } else if (!(dsapriv=d2i_ASN1_INTEGER (NULL, &p, pkeylen))) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- return NULL;
- }
- /* Retrieve parameters */
- if (a->parameter->type != V_ASN1_SEQUENCE) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_NO_DSA_PARAMETERS);
- return NULL;
- }
- p = a->parameter->value.sequence->data;
- plen = a->parameter->value.sequence->length;
- if (!(dsa = d2i_DSAparams (NULL, &p, plen))) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- return NULL;
- }
- /* We have parameters now set private key */
- if (!(dsa->priv_key = ASN1_INTEGER_to_BN(dsapriv, NULL))) {
- EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_DECODE_ERROR);
- DSA_free (dsa);
- return NULL;
- }
- /* Calculate public key (ouch!) */
- if (!(dsa->pub_key = BN_new())) {
- EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
- DSA_free (dsa);
- return NULL;
- }
- if (!(ctx = BN_CTX_new())) {
- EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
- DSA_free (dsa);
- return NULL;
- }
-
- 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;
- }
+PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8_broken(EVP_PKEY *pkey, int broken)
+{
+ PKCS8_PRIV_KEY_INFO *p8;
+
+ if ((p8 = PKCS8_PRIV_KEY_INFO_new()) == NULL) {
+ EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ p8->broken = broken;
+
+ if (pkey->ameth) {
+ if (pkey->ameth->priv_encode) {
+ if (!pkey->ameth->priv_encode(p8, pkey)) {
+ EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN,
+ EVP_R_PRIVATE_KEY_ENCODE_ERROR);
+ goto error;
+ }
+ } else {
+ EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN, EVP_R_METHOD_NOT_SUPPORTED);
+ goto error;
+ }
+ } else {
+ EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN,
+ EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
+ goto error;
+ }
+ RAND_add(p8->pkey->value.octet_string->data,
+ p8->pkey->value.octet_string->length, 0.0);
+ return p8;
+ error:
+ PKCS8_PRIV_KEY_INFO_free(p8);
+ return NULL;
+}
- EVP_PKEY_assign_DSA (pkey, dsa);
- BN_CTX_free (ctx);
- break;
-#endif
- default:
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
- if (!a->algorithm) strcpy (obj_tmp, "NULL");
- else i2t_ASN1_OBJECT(obj_tmp, 80, a->algorithm);
- ERR_add_error_data(2, "TYPE=", obj_tmp);
- EVP_PKEY_free (pkey);
- return NULL;
- }
- return pkey;
+PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(PKCS8_PRIV_KEY_INFO *p8, int broken)
+{
+ switch (broken) {
+
+ case PKCS8_OK:
+ p8->broken = PKCS8_OK;
+ return p8;
+
+ case PKCS8_NO_OCTET:
+ p8->broken = PKCS8_NO_OCTET;
+ p8->pkey->type = V_ASN1_SEQUENCE;
+ return p8;
+
+ default:
+ EVPerr(EVP_F_PKCS8_SET_BROKEN, EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
+ return NULL;
+ }
}
-/* Turn a private key into a PKCS8 structure */
+/* EVP_PKEY attribute functions */
-PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey)
+int EVP_PKEY_get_attr_count(const EVP_PKEY *key)
{
- PKCS8_PRIV_KEY_INFO *p8;
-#ifndef NO_DSA
- ASN1_INTEGER *dpkey;
- unsigned char *p, *q;
- int len;
-#endif
- if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {
- EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- 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;
- }
- switch (EVP_PKEY_type(pkey->type)) {
-#ifndef NO_RSA
- case EVP_PKEY_RSA:
+ return X509at_get_attr_count(key->attributes);
+}
- p8->pkeyalg->algorithm = OBJ_nid2obj(NID_rsaEncryption);
- p8->pkeyalg->parameter->type = V_ASN1_NULL;
- if (!ASN1_pack_string ((char *)pkey, i2d_PrivateKey,
- &p8->pkey->value.octet_string)) {
- EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
- PKCS8_PRIV_KEY_INFO_free (p8);
- return NULL;
- }
- break;
-#endif
-#ifndef NO_DSA
- case EVP_PKEY_DSA:
- p8->pkeyalg->algorithm = OBJ_nid2obj(NID_dsa);
+int EVP_PKEY_get_attr_by_NID(const EVP_PKEY *key, int nid, int lastpos)
+{
+ return X509at_get_attr_by_NID(key->attributes, nid, lastpos);
+}
- /* 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);
- PKCS8_PRIV_KEY_INFO_free (p8);
- return NULL;
- }
- ASN1_INTEGER_free (dpkey);
- 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);
- return p8;
+int EVP_PKEY_get_attr_by_OBJ(const EVP_PKEY *key, ASN1_OBJECT *obj,
+ int lastpos)
+{
+ return X509at_get_attr_by_OBJ(key->attributes, obj, lastpos);
}
-PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(PKCS8_PRIV_KEY_INFO *p8, int broken)
+X509_ATTRIBUTE *EVP_PKEY_get_attr(const EVP_PKEY *key, int loc)
{
- switch (broken) {
+ return X509at_get_attr(key->attributes, loc);
+}
- case PKCS8_OK:
- p8->broken = PKCS8_OK;
- return p8;
- break;
+X509_ATTRIBUTE *EVP_PKEY_delete_attr(EVP_PKEY *key, int loc)
+{
+ return X509at_delete_attr(key->attributes, loc);
+}
- case PKCS8_NO_OCTET:
- p8->broken = PKCS8_NO_OCTET;
- p8->pkey->type = V_ASN1_SEQUENCE;
- return p8;
- break;
+int EVP_PKEY_add1_attr(EVP_PKEY *key, X509_ATTRIBUTE *attr)
+{
+ if (X509at_add1_attr(&key->attributes, attr))
+ return 1;
+ return 0;
+}
- default:
- EVPerr(EVP_F_EVP_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
- return NULL;
- break;
-
- }
+int EVP_PKEY_add1_attr_by_OBJ(EVP_PKEY *key,
+ const ASN1_OBJECT *obj, int type,
+ const unsigned char *bytes, int len)
+{
+ if (X509at_add1_attr_by_OBJ(&key->attributes, obj, type, bytes, len))
+ return 1;
+ return 0;
}
+int EVP_PKEY_add1_attr_by_NID(EVP_PKEY *key,
+ int nid, int type,
+ const unsigned char *bytes, int len)
+{
+ if (X509at_add1_attr_by_NID(&key->attributes, nid, type, bytes, len))
+ return 1;
+ return 0;
+}
+int EVP_PKEY_add1_attr_by_txt(EVP_PKEY *key,
+ const char *attrname, int type,
+ const unsigned char *bytes, int len)
+{
+ if (X509at_add1_attr_by_txt(&key->attributes, attrname, type, bytes, len))
+ return 1;
+ return 0;
+}
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