-/* crypto/evp/p_lib.c */
/* 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 "internal/cryptlib.h"
+#include <openssl/bn.h>
+#include <openssl/err.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
-#include <openssl/asn1_mac.h>
#include <openssl/x509.h>
-
-static void EVP_PKEY_free_it(EVP_PKEY *x);
-
-int EVP_PKEY_bits(EVP_PKEY *pkey)
- {
#ifndef OPENSSL_NO_RSA
- if (pkey->type == EVP_PKEY_RSA)
- return(BN_num_bits(pkey->pkey.rsa->n));
- else
+# include <openssl/rsa.h>
#endif
#ifndef OPENSSL_NO_DSA
- if (pkey->type == EVP_PKEY_DSA)
- return(BN_num_bits(pkey->pkey.dsa->p));
+# include <openssl/dsa.h>
#endif
- return(0);
- }
-
-int EVP_PKEY_size(EVP_PKEY *pkey)
- {
- if (pkey == NULL)
- return(0);
- #ifndef OPENSSL_NO_RSA
- if (pkey->type == EVP_PKEY_RSA)
- return(RSA_size(pkey->pkey.rsa));
- else
+#ifndef OPENSSL_NO_DH
+# include <openssl/dh.h>
#endif
-#ifndef OPENSSL_NO_DSA
- if (pkey->type == EVP_PKEY_DSA)
- return(DSA_size(pkey->pkey.dsa));
+
+#ifndef OPENSSL_NO_ENGINE
+# include <openssl/engine.h>
#endif
- return(0);
- }
+
+#include "internal/asn1_int.h"
+#include "internal/evp_int.h"
+
+static void EVP_PKEY_free_it(EVP_PKEY *x);
+
+int EVP_PKEY_bits(EVP_PKEY *pkey)
+{
+ if (pkey && pkey->ameth && pkey->ameth->pkey_bits)
+ return pkey->ameth->pkey_bits(pkey);
+ return 0;
+}
+
+int EVP_PKEY_security_bits(const EVP_PKEY *pkey)
+{
+ if (pkey == NULL)
+ return 0;
+ if (!pkey->ameth || !pkey->ameth->pkey_security_bits)
+ return -2;
+ return pkey->ameth->pkey_security_bits(pkey);
+}
+
+int EVP_PKEY_size(EVP_PKEY *pkey)
+{
+ if (pkey && pkey->ameth && pkey->ameth->pkey_size)
+ return pkey->ameth->pkey_size(pkey);
+ return 0;
+}
int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
- {
-#ifndef OPENSSL_NO_DSA
- if (pkey->type == EVP_PKEY_DSA)
- {
- int ret=pkey->save_parameters;
-
- if (mode >= 0)
- pkey->save_parameters=mode;
- return(ret);
- }
-#endif
- return(0);
- }
-
-int EVP_PKEY_copy_parameters(EVP_PKEY *to, EVP_PKEY *from)
- {
- if (to->type != from->type)
- {
- EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES);
- goto err;
- }
-
- if (EVP_PKEY_missing_parameters(from))
- {
- EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS);
- goto err;
- }
+{
#ifndef OPENSSL_NO_DSA
- if (to->type == EVP_PKEY_DSA)
- {
- BIGNUM *a;
-
- if ((a=BN_dup(from->pkey.dsa->p)) == NULL) goto err;
- if (to->pkey.dsa->p != NULL) BN_free(to->pkey.dsa->p);
- to->pkey.dsa->p=a;
-
- if ((a=BN_dup(from->pkey.dsa->q)) == NULL) goto err;
- if (to->pkey.dsa->q != NULL) BN_free(to->pkey.dsa->q);
- to->pkey.dsa->q=a;
-
- if ((a=BN_dup(from->pkey.dsa->g)) == NULL) goto err;
- if (to->pkey.dsa->g != NULL) BN_free(to->pkey.dsa->g);
- to->pkey.dsa->g=a;
- }
-#endif
- return(1);
-err:
- return(0);
- }
+ if (pkey->type == EVP_PKEY_DSA) {
+ int ret = pkey->save_parameters;
-int EVP_PKEY_missing_parameters(EVP_PKEY *pkey)
- {
-#ifndef OPENSSL_NO_DSA
- if (pkey->type == EVP_PKEY_DSA)
- {
- DSA *dsa;
-
- dsa=pkey->pkey.dsa;
- if ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))
- return(1);
- }
+ if (mode >= 0)
+ pkey->save_parameters = mode;
+ return (ret);
+ }
#endif
- return(0);
- }
+#ifndef OPENSSL_NO_EC
+ if (pkey->type == EVP_PKEY_EC) {
+ int ret = pkey->save_parameters;
-int EVP_PKEY_cmp_parameters(EVP_PKEY *a, EVP_PKEY *b)
- {
-#ifndef OPENSSL_NO_DSA
- if ((a->type == EVP_PKEY_DSA) && (b->type == EVP_PKEY_DSA))
- {
- if ( BN_cmp(a->pkey.dsa->p,b->pkey.dsa->p) ||
- BN_cmp(a->pkey.dsa->q,b->pkey.dsa->q) ||
- BN_cmp(a->pkey.dsa->g,b->pkey.dsa->g))
- return(0);
- else
- return(1);
- }
+ if (mode >= 0)
+ pkey->save_parameters = mode;
+ return (ret);
+ }
#endif
- return(-1);
- }
+ return (0);
+}
+
+int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
+{
+ if (to->type == EVP_PKEY_NONE) {
+ if (EVP_PKEY_set_type(to, from->type) == 0)
+ return 0;
+ } else if (to->type != from->type) {
+ EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_KEY_TYPES);
+ goto err;
+ }
+
+ if (EVP_PKEY_missing_parameters(from)) {
+ EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_MISSING_PARAMETERS);
+ goto err;
+ }
+ if (from->ameth && from->ameth->param_copy)
+ return from->ameth->param_copy(to, from);
+ err:
+ return 0;
+}
+
+int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey)
+{
+ if (pkey->ameth && pkey->ameth->param_missing)
+ return pkey->ameth->param_missing(pkey);
+ return 0;
+}
+
+int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
+{
+ if (a->type != b->type)
+ return -1;
+ if (a->ameth && a->ameth->param_cmp)
+ return a->ameth->param_cmp(a, b);
+ return -2;
+}
+
+int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
+{
+ if (a->type != b->type)
+ return -1;
+
+ if (a->ameth) {
+ int ret;
+ /* Compare parameters if the algorithm has them */
+ if (a->ameth->param_cmp) {
+ ret = a->ameth->param_cmp(a, b);
+ if (ret <= 0)
+ return ret;
+ }
+
+ if (a->ameth->pub_cmp)
+ return a->ameth->pub_cmp(a, b);
+ }
+
+ return -2;
+}
EVP_PKEY *EVP_PKEY_new(void)
- {
- EVP_PKEY *ret;
-
- ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY));
- if (ret == NULL)
- {
- EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE);
- return(NULL);
- }
- ret->type=EVP_PKEY_NONE;
- ret->references=1;
- ret->pkey.ptr=NULL;
- ret->attributes=NULL;
- ret->save_parameters=1;
- return(ret);
- }
-
-int EVP_PKEY_assign(EVP_PKEY *pkey, int type, char *key)
- {
- if (pkey == NULL) return(0);
- if (pkey->pkey.ptr != NULL)
- EVP_PKEY_free_it(pkey);
- pkey->type=EVP_PKEY_type(type);
- pkey->save_type=type;
- pkey->pkey.ptr=key;
- return(key != NULL);
- }
+{
+ EVP_PKEY *ret;
+
+ ret = OPENSSL_malloc(sizeof(*ret));
+ if (ret == NULL) {
+ EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE);
+ return (NULL);
+ }
+ ret->type = EVP_PKEY_NONE;
+ ret->save_type = EVP_PKEY_NONE;
+ ret->references = 1;
+ ret->ameth = NULL;
+ ret->engine = NULL;
+ ret->pkey.ptr = NULL;
+ ret->attributes = NULL;
+ ret->save_parameters = 1;
+ return (ret);
+}
+
+void EVP_PKEY_up_ref(EVP_PKEY *pkey)
+{
+ CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
+}
+
+/*
+ * Setup a public key ASN1 method and ENGINE from a NID or a string. If pkey
+ * is NULL just return 1 or 0 if the algorithm exists.
+ */
+
+static int pkey_set_type(EVP_PKEY *pkey, int type, const char *str, int len)
+{
+ const EVP_PKEY_ASN1_METHOD *ameth;
+ ENGINE *e = NULL;
+ if (pkey) {
+ if (pkey->pkey.ptr)
+ EVP_PKEY_free_it(pkey);
+ /*
+ * If key type matches and a method exists then this lookup has
+ * succeeded once so just indicate success.
+ */
+ if ((type == pkey->save_type) && pkey->ameth)
+ return 1;
+#ifndef OPENSSL_NO_ENGINE
+ /* If we have an ENGINE release it */
+ if (pkey->engine) {
+ ENGINE_finish(pkey->engine);
+ pkey->engine = NULL;
+ }
+#endif
+ }
+ if (str)
+ ameth = EVP_PKEY_asn1_find_str(&e, str, len);
+ else
+ ameth = EVP_PKEY_asn1_find(&e, type);
+#ifndef OPENSSL_NO_ENGINE
+ if (!pkey && e)
+ ENGINE_finish(e);
+#endif
+ if (!ameth) {
+ EVPerr(EVP_F_PKEY_SET_TYPE, EVP_R_UNSUPPORTED_ALGORITHM);
+ return 0;
+ }
+ if (pkey) {
+ pkey->ameth = ameth;
+ pkey->engine = e;
+
+ pkey->type = pkey->ameth->pkey_id;
+ pkey->save_type = type;
+ }
+ return 1;
+}
+
+int EVP_PKEY_set_type(EVP_PKEY *pkey, int type)
+{
+ return pkey_set_type(pkey, type, NULL, -1);
+}
+
+int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len)
+{
+ return pkey_set_type(pkey, EVP_PKEY_NONE, str, len);
+}
+
+int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key)
+{
+ if (pkey == NULL || !EVP_PKEY_set_type(pkey, type))
+ return 0;
+ pkey->pkey.ptr = key;
+ return (key != NULL);
+}
+
+void *EVP_PKEY_get0(const EVP_PKEY *pkey)
+{
+ return pkey->pkey.ptr;
+}
#ifndef OPENSSL_NO_RSA
int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key)
{
- int ret = EVP_PKEY_assign_RSA(pkey, key);
- if(ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_RSA);
- return ret;
+ int ret = EVP_PKEY_assign_RSA(pkey, key);
+ if (ret)
+ RSA_up_ref(key);
+ return ret;
+}
+
+RSA *EVP_PKEY_get0_RSA(EVP_PKEY *pkey)
+{
+ if (pkey->type != EVP_PKEY_RSA) {
+ EVPerr(EVP_F_EVP_PKEY_GET0_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
+ return NULL;
+ }
+ return pkey->pkey.rsa;
}
RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey)
- {
- if(pkey->type != EVP_PKEY_RSA) {
- EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
- return NULL;
- }
- CRYPTO_add(&pkey->pkey.rsa->references, 1, CRYPTO_LOCK_RSA);
- return pkey->pkey.rsa;
+{
+ RSA *ret = EVP_PKEY_get0_RSA(pkey);
+ if (ret != NULL)
+ RSA_up_ref(ret);
+ return ret;
}
#endif
#ifndef OPENSSL_NO_DSA
int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key)
{
- int ret = EVP_PKEY_assign_DSA(pkey, key);
- if(ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_DSA);
- return ret;
+ int ret = EVP_PKEY_assign_DSA(pkey, key);
+ if (ret)
+ DSA_up_ref(key);
+ return ret;
+}
+
+DSA *EVP_PKEY_get0_DSA(EVP_PKEY *pkey)
+{
+ if (pkey->type != EVP_PKEY_DSA) {
+ EVPerr(EVP_F_EVP_PKEY_GET0_DSA, EVP_R_EXPECTING_A_DSA_KEY);
+ return NULL;
+ }
+ return pkey->pkey.dsa;
}
DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey)
- {
- if(pkey->type != EVP_PKEY_DSA) {
- EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY);
- return NULL;
- }
- CRYPTO_add(&pkey->pkey.dsa->references, 1, CRYPTO_LOCK_DSA);
- return pkey->pkey.dsa;
+{
+ DSA *ret = EVP_PKEY_get0_DSA(pkey);
+ if (ret != NULL)
+ DSA_up_ref(ret);
+ return ret;
+}
+#endif
+
+#ifndef OPENSSL_NO_EC
+
+int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key)
+{
+ int ret = EVP_PKEY_assign_EC_KEY(pkey, key);
+ if (ret)
+ EC_KEY_up_ref(key);
+ return ret;
+}
+
+EC_KEY *EVP_PKEY_get0_EC_KEY(EVP_PKEY *pkey)
+{
+ if (pkey->type != EVP_PKEY_EC) {
+ EVPerr(EVP_F_EVP_PKEY_GET0_EC_KEY, EVP_R_EXPECTING_A_EC_KEY);
+ return NULL;
+ }
+ return pkey->pkey.ec;
+}
+
+EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey)
+{
+ EC_KEY *ret = EVP_PKEY_get0_EC_KEY(pkey);
+ if (ret != NULL)
+ EC_KEY_up_ref(ret);
+ return ret;
}
#endif
int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key)
{
- int ret = EVP_PKEY_assign_DH(pkey, key);
- if(ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_DH);
- return ret;
+ int ret = EVP_PKEY_assign_DH(pkey, key);
+ if (ret)
+ DH_up_ref(key);
+ return ret;
+}
+
+DH *EVP_PKEY_get0_DH(EVP_PKEY *pkey)
+{
+ if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) {
+ EVPerr(EVP_F_EVP_PKEY_GET0_DH, EVP_R_EXPECTING_A_DH_KEY);
+ return NULL;
+ }
+ return pkey->pkey.dh;
}
DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
- {
- if(pkey->type != EVP_PKEY_DH) {
- EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY);
- return NULL;
- }
- CRYPTO_add(&pkey->pkey.dh->references, 1, CRYPTO_LOCK_DH);
- return pkey->pkey.dh;
+{
+ DH *ret = EVP_PKEY_get0_DH(pkey);
+ if (ret != NULL)
+ DH_up_ref(ret);
+ return ret;
}
#endif
int EVP_PKEY_type(int type)
- {
- switch (type)
- {
- case EVP_PKEY_RSA:
- case EVP_PKEY_RSA2:
- return(EVP_PKEY_RSA);
- case EVP_PKEY_DSA:
- case EVP_PKEY_DSA1:
- case EVP_PKEY_DSA2:
- case EVP_PKEY_DSA3:
- case EVP_PKEY_DSA4:
- return(EVP_PKEY_DSA);
- case EVP_PKEY_DH:
- return(EVP_PKEY_DH);
- default:
- return(NID_undef);
- }
- }
+{
+ int ret;
+ const EVP_PKEY_ASN1_METHOD *ameth;
+ ENGINE *e;
+ ameth = EVP_PKEY_asn1_find(&e, type);
+ if (ameth)
+ ret = ameth->pkey_id;
+ else
+ ret = NID_undef;
+#ifndef OPENSSL_NO_ENGINE
+ if (e)
+ ENGINE_finish(e);
+#endif
+ return ret;
+}
+
+int EVP_PKEY_id(const EVP_PKEY *pkey)
+{
+ return pkey->type;
+}
+
+int EVP_PKEY_base_id(const EVP_PKEY *pkey)
+{
+ return EVP_PKEY_type(pkey->type);
+}
void EVP_PKEY_free(EVP_PKEY *x)
- {
- int i;
+{
+ int i;
- if (x == NULL) return;
+ if (x == NULL)
+ return;
- i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY);
-#ifdef REF_PRINT
- REF_PRINT("EVP_PKEY",x);
-#endif
- if (i > 0) return;
-#ifdef REF_CHECK
- if (i < 0)
- {
- fprintf(stderr,"EVP_PKEY_free, bad reference count\n");
- abort();
- }
-#endif
- EVP_PKEY_free_it(x);
- OPENSSL_free(x);
- }
+ i = CRYPTO_add(&x->references, -1, CRYPTO_LOCK_EVP_PKEY);
+ REF_PRINT_COUNT("EVP_PKEY", x);
+ if (i > 0)
+ return;
+ REF_ASSERT_ISNT(i < 0);
+ EVP_PKEY_free_it(x);
+ sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);
+ OPENSSL_free(x);
+}
static void EVP_PKEY_free_it(EVP_PKEY *x)
- {
- switch (x->type)
- {
-#ifndef OPENSSL_NO_RSA
- case EVP_PKEY_RSA:
- case EVP_PKEY_RSA2:
- RSA_free(x->pkey.rsa);
- break;
-#endif
-#ifndef OPENSSL_NO_DSA
- case EVP_PKEY_DSA:
- case EVP_PKEY_DSA2:
- case EVP_PKEY_DSA3:
- case EVP_PKEY_DSA4:
- DSA_free(x->pkey.dsa);
- break;
-#endif
-#ifndef OPENSSL_NO_DH
- case EVP_PKEY_DH:
- DH_free(x->pkey.dh);
- break;
+{
+ /* internal function; x is never NULL */
+ if (x->ameth && x->ameth->pkey_free) {
+ x->ameth->pkey_free(x);
+ x->pkey.ptr = NULL;
+ }
+#ifndef OPENSSL_NO_ENGINE
+ if (x->engine) {
+ ENGINE_finish(x->engine);
+ x->engine = NULL;
+ }
#endif
- }
- }
+}
+static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent,
+ const char *kstr)
+{
+ BIO_indent(out, indent, 128);
+ BIO_printf(out, "%s algorithm \"%s\" unsupported\n",
+ kstr, OBJ_nid2ln(pkey->type));
+ return 1;
+}
+
+int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey,
+ int indent, ASN1_PCTX *pctx)
+{
+ if (pkey->ameth && pkey->ameth->pub_print)
+ return pkey->ameth->pub_print(out, pkey, indent, pctx);
+
+ return unsup_alg(out, pkey, indent, "Public Key");
+}
+
+int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey,
+ int indent, ASN1_PCTX *pctx)
+{
+ if (pkey->ameth && pkey->ameth->priv_print)
+ return pkey->ameth->priv_print(out, pkey, indent, pctx);
+
+ return unsup_alg(out, pkey, indent, "Private Key");
+}
+
+int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey,
+ int indent, ASN1_PCTX *pctx)
+{
+ if (pkey->ameth && pkey->ameth->param_print)
+ return pkey->ameth->param_print(out, pkey, indent, pctx);
+ return unsup_alg(out, pkey, indent, "Parameters");
+}
+
+int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid)
+{
+ if (!pkey->ameth || !pkey->ameth->pkey_ctrl)
+ return -2;
+ return pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID,
+ 0, pnid);
+}
projects / openssl.git / blobdiff