X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fevp%2Fp_lib.c;h=7d255af5826558aa5b2b05adaeac03b99b9b291c;hp=22155ecf62c4b07ed942f434d9414c623e66914d;hb=2872dbe1c46eceb20c38bc55a5fe2a4c4c52fe9d;hpb=3eeaab4bed46e3320947d0f609b82007b65b5a46

diff --git a/crypto/evp/p_lib.c b/crypto/evp/p_lib.c
index 22155ecf62..7d255af582 100644
--- a/crypto/evp/p_lib.c
+++ b/crypto/evp/p_lib.c
@@ -5,21 +5,21 @@
  * 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:
@@ -34,10 +34,10 @@
  *     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
@@ -49,7 +49,7 @@
  * 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
@@ -57,325 +57,280 @@
  */
 
 #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>
 #ifndef OPENSSL_NO_RSA
-#include <openssl/rsa.h>
+# include <openssl/rsa.h>
 #endif
 #ifndef OPENSSL_NO_DSA
-#include <openssl/dsa.h>
+# include <openssl/dsa.h>
 #endif
 #ifndef OPENSSL_NO_DH
-#include <openssl/dh.h>
+# include <openssl/dh.h>
 #endif
 
+#ifndef OPENSSL_NO_ENGINE
+# include <openssl/engine.h>
+#endif
+
+#include "internal/asn1_int.h"
+
 static void EVP_PKEY_free_it(EVP_PKEY *x);
 
 int EVP_PKEY_bits(EVP_PKEY *pkey)
-	{
-	if (0)
-		return 0;
-#ifndef OPENSSL_NO_RSA
-	else if (pkey->type == EVP_PKEY_RSA)
-		return(BN_num_bits(pkey->pkey.rsa->n));
-#endif
-#ifndef OPENSSL_NO_DSA
-	else if (pkey->type == EVP_PKEY_DSA)
-		return(BN_num_bits(pkey->pkey.dsa->p));
-#endif
-#ifndef OPENSSL_NO_EC
-	else if (pkey->type == EVP_PKEY_EC)
-		{
-		BIGNUM *order = BN_new();
-		const EC_GROUP *group;
-		int ret;
-
-		if (!order)
-			{
-			ERR_clear_error();
-			return 0;
-			}
-		group = EC_KEY_get0_group(pkey->pkey.ec);
-		if (!EC_GROUP_get_order(group, order, NULL))
-			{
-			ERR_clear_error();
-			return 0;
-			}
-
-		ret = BN_num_bits(order);
-		BN_free(order);
-		return ret;
-		}
-#endif
-	return(0);
-	}
+{
+    if (pkey && pkey->ameth && pkey->ameth->pkey_bits)
+        return pkey->ameth->pkey_bits(pkey);
+    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
-#endif
-#ifndef OPENSSL_NO_DSA
-		if (pkey->type == EVP_PKEY_DSA)
-		return(DSA_size(pkey->pkey.dsa));
-#endif
-#ifndef OPENSSL_NO_ECDSA
-		if (pkey->type == EVP_PKEY_EC)
-		return(ECDSA_size(pkey->pkey.ec));
-#endif
+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);
+}
 
-	return(0);
-	}
+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);
-		}
+    if (pkey->type == EVP_PKEY_DSA) {
+        int ret = pkey->save_parameters;
+
+        if (mode >= 0)
+            pkey->save_parameters = mode;
+        return (ret);
+    }
 #endif
 #ifndef OPENSSL_NO_EC
-	if (pkey->type == EVP_PKEY_EC)
-		{
-		int ret = pkey->save_parameters;
-
-		if (mode >= 0)
-			pkey->save_parameters = mode;
-		return(ret);
-		}
+    if (pkey->type == EVP_PKEY_EC) {
+        int ret = pkey->save_parameters;
+
+        if (mode >= 0)
+            pkey->save_parameters = mode;
+        return (ret);
+    }
 #endif
-	return(0);
-	}
+    return (0);
+}
 
 int EVP_PKEY_copy_parameters(EVP_PKEY *to, const 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
-#ifndef OPENSSL_NO_EC
-	if (to->type == EVP_PKEY_EC)
-		{
-		EC_GROUP *group = EC_GROUP_dup(EC_KEY_get0_group(from->pkey.ec));
-		if (group == NULL)
-			goto err;
-		if (EC_KEY_set_group(to->pkey.ec, group) == 0)
-			goto err;
-		EC_GROUP_free(group);
-		}
-#endif
-	return(1);
-err:
-	return(0);
-	}
+{
+    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)
-	{
-#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);
-		}
-#endif
-#ifndef OPENSSL_NO_EC
-	if (pkey->type == EVP_PKEY_EC)
-		{
-		if (EC_KEY_get0_group(pkey->pkey.ec) == NULL)
-			return(1);
-		}
-#endif
-
-	return(0);
-	}
+{
+    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)
-	{
-#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);
-		}
-#endif
-#ifndef OPENSSL_NO_EC
-	if (a->type == EVP_PKEY_EC && b->type == EVP_PKEY_EC)
-		{
-		const EC_GROUP *group_a = EC_KEY_get0_group(a->pkey.ec),
-		               *group_b = EC_KEY_get0_group(b->pkey.ec);
-		if (EC_GROUP_cmp(group_a, group_b, NULL))
-			return 0;
-		else
-			return 1;
-		}
-#endif
-	return(-1);
-	}
+{
+    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->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;
+}
 
-	if (EVP_PKEY_cmp_parameters(a, b) == 0)
-		return 0;
+EVP_PKEY *EVP_PKEY_new(void)
+{
+    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);
+}
 
-	switch (a->type)
-		{
-#ifndef OPENSSL_NO_RSA
-	case EVP_PKEY_RSA:
-		if (BN_cmp(b->pkey.rsa->n,a->pkey.rsa->n) != 0
-			|| BN_cmp(b->pkey.rsa->e,a->pkey.rsa->e) != 0)
-			return 0;
-		break;
-#endif
-#ifndef OPENSSL_NO_DSA
-	case EVP_PKEY_DSA:
-		if (BN_cmp(b->pkey.dsa->pub_key,a->pkey.dsa->pub_key) != 0)
-			return 0;
-		break;
+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
-#ifndef OPENSSL_NO_EC
-	case EVP_PKEY_EC:
-		{
-		int  r;
-		const EC_GROUP *group = EC_KEY_get0_group(b->pkey.ec);
-		const EC_POINT *pa = EC_KEY_get0_public_key(a->pkey.ec),
-		               *pb = EC_KEY_get0_public_key(b->pkey.ec);
-		r = EC_POINT_cmp(group, pa, pb, NULL);
-		if (r != 0)
-			{
-			if (r == 1)
-				return 0;
-			else
-				return -2;
-			}
-		}
- 		break;
+    }
+    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
-#ifndef OPENSSL_NO_DH
-	case EVP_PKEY_DH:
-		return -2;
-#endif
-	default:
-		return -2;
-		}
+    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;
+}
 
-	return 1;
-	}
+int EVP_PKEY_set_type(EVP_PKEY *pkey, int type)
+{
+    return pkey_set_type(pkey, type, NULL, -1);
+}
 
-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);
-	}
+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(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)
-		RSA_up_ref(key);
-	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;
-	}
-	RSA_up_ref(pkey->pkey.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)
-		DSA_up_ref(key);
-	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;
-	}
-	DSA_up_ref(pkey->pkey.dsa);
-	return pkey->pkey.dsa;
+{
+    DSA *ret = EVP_PKEY_get0_DSA(pkey);
+    if (ret != NULL)
+        DSA_up_ref(ret);
+    return ret;
 }
 #endif
 
@@ -383,120 +338,163 @@ DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey)
 
 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;
+    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)
 {
-	if (pkey->type != EVP_PKEY_EC)
-	{
-		EVPerr(EVP_F_EVP_PKEY_GET1_EC_KEY, EVP_R_EXPECTING_A_EC_KEY);
-		return NULL;
-	}
-	EC_KEY_up_ref(pkey->pkey.ec);
-	return pkey->pkey.ec;
+    EC_KEY *ret = EVP_PKEY_get0_EC_KEY(pkey);
+    if (ret != NULL)
+        EC_KEY_up_ref(ret);
+    return ret;
 }
 #endif
 
-
 #ifndef OPENSSL_NO_DH
 
 int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key)
 {
-	int ret = EVP_PKEY_assign_DH(pkey, key);
-	if(ret)
-		DH_up_ref(key);
-	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;
-	}
-	DH_up_ref(pkey->pkey.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);
-	case EVP_PKEY_EC:
-		return(EVP_PKEY_EC);
-	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);
+    i = CRYPTO_add(&x->references, -1, CRYPTO_LOCK_EVP_PKEY);
 #ifdef REF_PRINT
-	REF_PRINT("EVP_PKEY",x);
+    REF_PRINT("EVP_PKEY", x);
 #endif
-	if (i > 0) return;
+    if (i > 0)
+        return;
 #ifdef REF_CHECK
-	if (i < 0)
-		{
-		fprintf(stderr,"EVP_PKEY_free, bad reference count\n");
-		abort();
-		}
+    if (i < 0) {
+        fprintf(stderr, "EVP_PKEY_free, bad reference count\n");
+        abort();
+    }
 #endif
-	EVP_PKEY_free_it(x);
-	if (x->attributes)
-		sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);
-	OPENSSL_free(x);
-	}
+    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_EC
-	case EVP_PKEY_EC:
-		EC_KEY_free(x->pkey.ec);
-		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);
+}