/* crypto/asn1/x_pubkey.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
- *
+ *
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
+ *
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
+ * 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
+ *
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
+ *
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
*/
#include <stdio.h>
-#include "cryptlib.h"
-#include "asn1_mac.h"
+#include "internal/cryptlib.h"
+#include <openssl/asn1t.h>
+#include <openssl/x509.h>
+#include "internal/asn1_int.h"
+#include "internal/evp_int.h"
+#ifndef OPENSSL_NO_RSA
+# include <openssl/rsa.h>
+#endif
+#ifndef OPENSSL_NO_DSA
+# include <openssl/dsa.h>
+#endif
+
+/* Minor tweak to operation: free up EVP_PKEY */
+static int pubkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
+ void *exarg)
+{
+ if (operation == ASN1_OP_FREE_POST) {
+ X509_PUBKEY *pubkey = (X509_PUBKEY *)*pval;
+ EVP_PKEY_free(pubkey->pkey);
+ }
+ return 1;
+}
+
+ASN1_SEQUENCE_cb(X509_PUBKEY, pubkey_cb) = {
+ ASN1_SIMPLE(X509_PUBKEY, algor, X509_ALGOR),
+ ASN1_SIMPLE(X509_PUBKEY, public_key, ASN1_BIT_STRING)
+} ASN1_SEQUENCE_END_cb(X509_PUBKEY, X509_PUBKEY)
+
+IMPLEMENT_ASN1_FUNCTIONS(X509_PUBKEY)
+
+int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey)
+{
+ X509_PUBKEY *pk = NULL;
+
+ if (x == NULL)
+ return (0);
+
+ if ((pk = X509_PUBKEY_new()) == NULL)
+ goto error;
+
+ if (pkey->ameth) {
+ if (pkey->ameth->pub_encode) {
+ if (!pkey->ameth->pub_encode(pk, pkey)) {
+ X509err(X509_F_X509_PUBKEY_SET,
+ X509_R_PUBLIC_KEY_ENCODE_ERROR);
+ goto error;
+ }
+ } else {
+ X509err(X509_F_X509_PUBKEY_SET, X509_R_METHOD_NOT_SUPPORTED);
+ goto error;
+ }
+ } else {
+ X509err(X509_F_X509_PUBKEY_SET, X509_R_UNSUPPORTED_ALGORITHM);
+ goto error;
+ }
+
+ X509_PUBKEY_free(*x);
+ *x = pk;
+ return 1;
+
+ error:
+ X509_PUBKEY_free(pk);
+ return 0;
+}
+
+EVP_PKEY *X509_PUBKEY_get0(X509_PUBKEY *key)
+{
+ EVP_PKEY *ret = NULL;
+
+ if (key == NULL)
+ goto error;
+
+ if (key->pkey != NULL)
+ return key->pkey;
+
+ if (key->public_key == NULL)
+ goto error;
+
+ if ((ret = EVP_PKEY_new()) == NULL) {
+ X509err(X509_F_X509_PUBKEY_GET0, ERR_R_MALLOC_FAILURE);
+ goto error;
+ }
+
+ if (!EVP_PKEY_set_type(ret, OBJ_obj2nid(key->algor->algorithm))) {
+ X509err(X509_F_X509_PUBKEY_GET0, X509_R_UNSUPPORTED_ALGORITHM);
+ goto error;
+ }
+
+ if (ret->ameth->pub_decode) {
+ if (!ret->ameth->pub_decode(ret, key)) {
+ X509err(X509_F_X509_PUBKEY_GET0, X509_R_PUBLIC_KEY_DECODE_ERROR);
+ goto error;
+ }
+ } else {
+ X509err(X509_F_X509_PUBKEY_GET0, X509_R_METHOD_NOT_SUPPORTED);
+ goto error;
+ }
+
+ /* Check to see if another thread set key->pkey first */
+ CRYPTO_w_lock(CRYPTO_LOCK_EVP_PKEY);
+ if (key->pkey) {
+ CRYPTO_w_unlock(CRYPTO_LOCK_EVP_PKEY);
+ EVP_PKEY_free(ret);
+ ret = key->pkey;
+ } else {
+ key->pkey = ret;
+ CRYPTO_w_unlock(CRYPTO_LOCK_EVP_PKEY);
+ }
+
+ return ret;
+
+ error:
+ EVP_PKEY_free(ret);
+ return (NULL);
+}
+
+EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key)
+{
+ EVP_PKEY *ret = X509_PUBKEY_get0(key);
+ if (ret != NULL)
+ EVP_PKEY_up_ref(ret);
+ return ret;
+}
/*
- * ASN1err(ASN1_F_D2I_X509_PUBKEY,ASN1_R_LENGTH_MISMATCH);
- * ASN1err(ASN1_F_X509_PUBKEY_NEW,ASN1_R_LENGTH_MISMATCH);
+ * Now two pseudo ASN1 routines that take an EVP_PKEY structure and encode or
+ * decode as X509_PUBKEY
*/
-int i2d_X509_PUBKEY(a,pp)
-X509_PUBKEY *a;
-unsigned char **pp;
- {
- M_ASN1_I2D_vars(a);
-
- M_ASN1_I2D_len(a->algor, i2d_X509_ALGOR);
- M_ASN1_I2D_len(a->public_key, i2d_ASN1_BIT_STRING);
-
- M_ASN1_I2D_seq_total();
-
- M_ASN1_I2D_put(a->algor, i2d_X509_ALGOR);
- M_ASN1_I2D_put(a->public_key, i2d_ASN1_BIT_STRING);
-
- M_ASN1_I2D_finish();
- }
-
-X509_PUBKEY *d2i_X509_PUBKEY(a,pp,length)
-X509_PUBKEY **a;
-unsigned char **pp;
-long length;
- {
- M_ASN1_D2I_vars(a,X509_PUBKEY *,X509_PUBKEY_new);
-
- M_ASN1_D2I_Init();
- M_ASN1_D2I_start_sequence();
- M_ASN1_D2I_get(ret->algor,d2i_X509_ALGOR);
- M_ASN1_D2I_get(ret->public_key,d2i_ASN1_BIT_STRING);
- if (ret->pkey != NULL)
- {
- EVP_PKEY_free(ret->pkey);
- ret->pkey=NULL;
- }
- M_ASN1_D2I_Finish(a,X509_PUBKEY_free,ASN1_F_D2I_X509_PUBKEY);
- }
-
-X509_PUBKEY *X509_PUBKEY_new()
- {
- X509_PUBKEY *ret=NULL;
-
- M_ASN1_New_Malloc(ret,X509_PUBKEY);
- M_ASN1_New(ret->algor,X509_ALGOR_new);
- M_ASN1_New(ret->public_key,ASN1_BIT_STRING_new);
- ret->pkey=NULL;
- return(ret);
- M_ASN1_New_Error(ASN1_F_X509_PUBKEY_NEW);
- }
-
-void X509_PUBKEY_free(a)
-X509_PUBKEY *a;
- {
- if (a == NULL) return;
- X509_ALGOR_free(a->algor);
- ASN1_BIT_STRING_free(a->public_key);
- if (a->pkey != NULL) EVP_PKEY_free(a->pkey);
- Free((char *)a);
- }
-
-int X509_PUBKEY_set(x,pkey)
-X509_PUBKEY **x;
-EVP_PKEY *pkey;
- {
- int ok=0;
- X509_PUBKEY *pk;
- X509_ALGOR *a;
- ASN1_OBJECT *o;
- unsigned char *s,*p;
- int i;
-
- if (x == NULL) return(0);
-
- if ((pk=X509_PUBKEY_new()) == NULL) goto err;
- a=pk->algor;
-
- /* set the algorithm id */
- if ((o=OBJ_nid2obj(pkey->type)) == NULL) goto err;
- ASN1_OBJECT_free(a->algorithm);
- a->algorithm=o;
-
- /* Set the parameter list */
- if (!pkey->save_parameters || (pkey->type == EVP_PKEY_RSA))
- {
- if ((a->parameter == NULL) ||
- (a->parameter->type != V_ASN1_NULL))
- {
- ASN1_TYPE_free(a->parameter);
- a->parameter=ASN1_TYPE_new();
- a->parameter->type=V_ASN1_NULL;
- }
- }
- else
-#ifndef NO_DSA
- if (pkey->type == EVP_PKEY_DSA)
- {
- unsigned char *pp;
- DSA *dsa;
-
- dsa=pkey->pkey.dsa;
- dsa->write_params=0;
- ASN1_TYPE_free(a->parameter);
- i=i2d_DSAparams(dsa,NULL);
- p=(unsigned char *)Malloc(i);
- pp=p;
- i2d_DSAparams(dsa,&pp);
- a->parameter=ASN1_TYPE_new();
- a->parameter->type=V_ASN1_SEQUENCE;
- a->parameter->value.sequence=ASN1_STRING_new();
- ASN1_STRING_set(a->parameter->value.sequence,p,i);
- Free(p);
- }
- else
+EVP_PKEY *d2i_PUBKEY(EVP_PKEY **a, const unsigned char **pp, long length)
+{
+ X509_PUBKEY *xpk;
+ EVP_PKEY *pktmp;
+ const unsigned char *q;
+ q = *pp;
+ xpk = d2i_X509_PUBKEY(NULL, &q, length);
+ if (!xpk)
+ return NULL;
+ pktmp = X509_PUBKEY_get(xpk);
+ X509_PUBKEY_free(xpk);
+ if (!pktmp)
+ return NULL;
+ *pp = q;
+ if (a) {
+ EVP_PKEY_free(*a);
+ *a = pktmp;
+ }
+ return pktmp;
+}
+
+int i2d_PUBKEY(EVP_PKEY *a, unsigned char **pp)
+{
+ X509_PUBKEY *xpk = NULL;
+ int ret;
+ if (!a)
+ return 0;
+ if (!X509_PUBKEY_set(&xpk, a))
+ return 0;
+ ret = i2d_X509_PUBKEY(xpk, pp);
+ X509_PUBKEY_free(xpk);
+ return ret;
+}
+
+/*
+ * The following are equivalents but which return RSA and DSA keys
+ */
+#ifndef OPENSSL_NO_RSA
+RSA *d2i_RSA_PUBKEY(RSA **a, const unsigned char **pp, long length)
+{
+ EVP_PKEY *pkey;
+ RSA *key;
+ const unsigned char *q;
+ q = *pp;
+ pkey = d2i_PUBKEY(NULL, &q, length);
+ if (!pkey)
+ return NULL;
+ key = EVP_PKEY_get1_RSA(pkey);
+ EVP_PKEY_free(pkey);
+ if (!key)
+ return NULL;
+ *pp = q;
+ if (a) {
+ RSA_free(*a);
+ *a = key;
+ }
+ return key;
+}
+
+int i2d_RSA_PUBKEY(RSA *a, unsigned char **pp)
+{
+ EVP_PKEY *pktmp;
+ int ret;
+ if (!a)
+ return 0;
+ pktmp = EVP_PKEY_new();
+ if (pktmp == NULL) {
+ ASN1err(ASN1_F_I2D_RSA_PUBKEY, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ EVP_PKEY_set1_RSA(pktmp, a);
+ ret = i2d_PUBKEY(pktmp, pp);
+ EVP_PKEY_free(pktmp);
+ return ret;
+}
#endif
- {
- X509err(X509_F_X509_PUBKEY_SET,X509_R_UNSUPPORTED_ALGORITHM);
- goto err;
- }
-
- i=i2d_PublicKey(pkey,NULL);
- if ((s=(unsigned char *)Malloc(i+1)) == NULL) goto err;
- p=s;
- i2d_PublicKey(pkey,&p);
- if (!ASN1_BIT_STRING_set(pk->public_key,s,i)) goto err;
- Free(s);
-
- CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
- pk->pkey=pkey;
-
- if (*x != NULL)
- X509_PUBKEY_free(*x);
-
- *x=pk;
- pk=NULL;
-
- ok=1;
-err:
- if (pk != NULL) X509_PUBKEY_free(pk);
- return(ok);
- }
-
-EVP_PKEY *X509_PUBKEY_get(key)
-X509_PUBKEY *key;
- {
- EVP_PKEY *ret=NULL;
- long j;
- int type;
- unsigned char *p;
- X509_ALGOR *a;
-
- if (key->pkey != NULL)
- {
- return(key->pkey);
- }
- type=OBJ_obj2nid(key->algor->algorithm);
- p=key->public_key->data;
- j=key->public_key->length;
- if ((ret=d2i_PublicKey(type,NULL,&p,(long)j)) == NULL)
- {
- X509err(X509_F_X509_PUBKEY_GET,X509_R_ERR_ASN1_LIB);
- goto err;
- }
- ret->save_parameters=0;
-
-#ifndef NO_DSA
- a=key->algor;
- if (ret->type == EVP_PKEY_DSA)
- {
- if (a->parameter->type == V_ASN1_SEQUENCE)
- {
- ret->pkey.dsa->write_params=0;
- p=a->parameter->value.sequence->data;
- j=a->parameter->value.sequence->length;
- if (!d2i_DSAparams(&ret->pkey.dsa,&p,(long)j))
- goto err;
- }
- ret->save_parameters=1;
- }
+
+#ifndef OPENSSL_NO_DSA
+DSA *d2i_DSA_PUBKEY(DSA **a, const unsigned char **pp, long length)
+{
+ EVP_PKEY *pkey;
+ DSA *key;
+ const unsigned char *q;
+ q = *pp;
+ pkey = d2i_PUBKEY(NULL, &q, length);
+ if (!pkey)
+ return NULL;
+ key = EVP_PKEY_get1_DSA(pkey);
+ EVP_PKEY_free(pkey);
+ if (!key)
+ return NULL;
+ *pp = q;
+ if (a) {
+ DSA_free(*a);
+ *a = key;
+ }
+ return key;
+}
+
+int i2d_DSA_PUBKEY(DSA *a, unsigned char **pp)
+{
+ EVP_PKEY *pktmp;
+ int ret;
+ if (!a)
+ return 0;
+ pktmp = EVP_PKEY_new();
+ if (pktmp == NULL) {
+ ASN1err(ASN1_F_I2D_DSA_PUBKEY, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ EVP_PKEY_set1_DSA(pktmp, a);
+ ret = i2d_PUBKEY(pktmp, pp);
+ EVP_PKEY_free(pktmp);
+ return ret;
+}
#endif
- key->pkey=ret;
- return(ret);
-err:
- if (ret != NULL)
- EVP_PKEY_free(ret);
- return(NULL);
- }
+#ifndef OPENSSL_NO_EC
+EC_KEY *d2i_EC_PUBKEY(EC_KEY **a, const unsigned char **pp, long length)
+{
+ EVP_PKEY *pkey;
+ EC_KEY *key;
+ const unsigned char *q;
+ q = *pp;
+ pkey = d2i_PUBKEY(NULL, &q, length);
+ if (!pkey)
+ return (NULL);
+ key = EVP_PKEY_get1_EC_KEY(pkey);
+ EVP_PKEY_free(pkey);
+ if (!key)
+ return (NULL);
+ *pp = q;
+ if (a) {
+ EC_KEY_free(*a);
+ *a = key;
+ }
+ return (key);
+}
+
+int i2d_EC_PUBKEY(EC_KEY *a, unsigned char **pp)
+{
+ EVP_PKEY *pktmp;
+ int ret;
+ if (!a)
+ return (0);
+ if ((pktmp = EVP_PKEY_new()) == NULL) {
+ ASN1err(ASN1_F_I2D_EC_PUBKEY, ERR_R_MALLOC_FAILURE);
+ return (0);
+ }
+ EVP_PKEY_set1_EC_KEY(pktmp, a);
+ ret = i2d_PUBKEY(pktmp, pp);
+ EVP_PKEY_free(pktmp);
+ return (ret);
+}
+#endif
+
+int X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj,
+ int ptype, void *pval,
+ unsigned char *penc, int penclen)
+{
+ if (!X509_ALGOR_set0(pub->algor, aobj, ptype, pval))
+ return 0;
+ if (penc) {
+ OPENSSL_free(pub->public_key->data);
+ pub->public_key->data = penc;
+ pub->public_key->length = penclen;
+ /* Set number of unused bits to zero */
+ pub->public_key->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
+ pub->public_key->flags |= ASN1_STRING_FLAG_BITS_LEFT;
+ }
+ return 1;
+}
+
+int X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg,
+ const unsigned char **pk, int *ppklen,
+ X509_ALGOR **pa, X509_PUBKEY *pub)
+{
+ if (ppkalg)
+ *ppkalg = pub->algor->algorithm;
+ if (pk) {
+ *pk = pub->public_key->data;
+ *ppklen = pub->public_key->length;
+ }
+ if (pa)
+ *pa = pub->algor;
+ return 1;
+}
projects / openssl.git / blobdiff