/* evp_pkey.c */
-/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
+/* 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
#include "cryptlib.h"
#include <openssl/x509.h>
#include <openssl/rand.h>
-
-static int dsa_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8inf, EVP_PKEY *pkey);
+#include "asn1_locl.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 = NULL;
-#ifndef OPENSSL_NO_RSA
- RSA *rsa = NULL;
-#endif
-#ifndef OPENSSL_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;
- unsigned char *p;
- const unsigned char *cp;
- int pkeylen;
+ ASN1_OBJECT *algoid;
char obj_tmp[80];
- 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;
- } else {
- p8->broken = PKCS8_NO_OCTET;
- p = p8->pkey->value.sequence->data;
- pkeylen = p8->pkey->value.sequence->length;
- }
+ if (!PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8))
+ return NULL;
+
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 OPENSSL_NO_RSA
- case NID_rsaEncryption:
- cp = p;
- if (!(rsa = d2i_RSAPrivateKey (NULL,&cp, pkeylen))) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- return NULL;
- }
- EVP_PKEY_assign_RSA (pkey, rsa);
- break;
-#endif
-#ifndef OPENSSL_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 DSA PKCS#8, UGH! */
- if(*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) {
- if(!(ndsa = ASN1_seq_unpack_ASN1_TYPE(p, pkeylen,
- d2i_ASN1_TYPE,
- ASN1_TYPE_free))) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- goto dsaerr;
- }
- if(sk_ASN1_TYPE_num(ndsa) != 2 ) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- goto dsaerr;
- }
- /* 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);
- goto dsaerr;
- }
+ 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(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;
+ 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;
}
- param = p8->pkeyalg->parameter;
- }
- if (!param || (param->type != V_ASN1_SEQUENCE)) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- goto dsaerr;
- }
- cp = p = param->value.sequence->data;
- plen = param->value.sequence->length;
- if (!(dsa = d2i_DSAparams (NULL, &cp, plen))) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- goto dsaerr;
- }
- /* We have parameters now set private key */
- if (!(dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL))) {
- EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_DECODE_ERROR);
- goto dsaerr;
- }
- /* Calculate public key (ouch!) */
- if (!(dsa->pub_key = BN_new())) {
- EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
- goto dsaerr;
}
- if (!(ctx = BN_CTX_new())) {
- EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
- 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);
- goto dsaerr;
+ else
+ {
+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_METHOD_NOT_SUPPORTED);
+ goto error;
}
- 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");
- 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;
+
+ error:
+ EVP_PKEY_free (pkey);
+ return NULL;
}
PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey)
PKCS8_PRIV_KEY_INFO *p8;
if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {
- EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
+ EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN,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 OPENSSL_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,
- &p8->pkey->value.octet_string)) {
- EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
- PKCS8_PRIV_KEY_INFO_free (p8);
- return NULL;
+ 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;
+ }
}
- break;
-#endif
-#ifndef OPENSSL_NO_DSA
- case EVP_PKEY_DSA:
- if(!dsa_pkey2pkcs8(p8, pkey)) {
- PKCS8_PRIV_KEY_INFO_free (p8);
- return NULL;
+ else
+ {
+ EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN,
+ EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
+ goto error;
}
-
- break;
-#endif
- default:
- EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
- PKCS8_PRIV_KEY_INFO_free (p8);
- return NULL;
- }
RAND_add(p8->pkey->value.octet_string->data,
- p8->pkey->value.octet_string->length, 0);
+ p8->pkey->value.octet_string->length, 0.0);
return p8;
+ error:
+ PKCS8_PRIV_KEY_INFO_free(p8);
+ return NULL;
}
PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(PKCS8_PRIV_KEY_INFO *p8, int broken)
break;
default:
- EVPerr(EVP_F_EVP_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
+ EVPerr(EVP_F_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
return NULL;
- break;
-
}
}
-#ifndef OPENSSL_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;
+/* EVP_PKEY attribute functions */
- 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();
+int EVP_PKEY_get_attr_count(const EVP_PKEY *key)
+{
+ return X509at_get_attr_count(key->attributes);
+}
- if (!ASN1_seq_pack_ASN1_TYPE(ndsa, i2d_ASN1_TYPE,
- &p8->pkey->value.octet_string->data,
- &p8->pkey->value.octet_string->length)) {
+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);
+}
- 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;
+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);
+}
- case PKCS8_EMBEDDED_PARAM:
+X509_ATTRIBUTE *EVP_PKEY_get_attr(const EVP_PKEY *key, int loc)
+{
+ return X509at_get_attr(key->attributes, loc);
+}
- 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);
+X509_ATTRIBUTE *EVP_PKEY_delete_attr(EVP_PKEY *key, int loc)
+{
+ return X509at_delete_attr(key->attributes, loc);
+}
- ttmp = ASN1_TYPE_new();
- ttmp->value.integer = prkey;
- ttmp->type = V_ASN1_INTEGER;
- sk_ASN1_TYPE_push(ndsa, ttmp);
+int EVP_PKEY_add1_attr(EVP_PKEY *key, X509_ATTRIBUTE *attr)
+{
+ if(X509at_add1_attr(&key->attributes, attr)) return 1;
+ return 0;
+}
- p8->pkey->value.octet_string = ASN1_OCTET_STRING_new();
+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;
+}
- if (!ASN1_seq_pack_ASN1_TYPE(ndsa, i2d_ASN1_TYPE,
- &p8->pkey->value.octet_string->data,
- &p8->pkey->value.octet_string->length)) {
+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;
+}
- 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;
+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;
}
-#endif
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