X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fevp%2Fp_lib.c;h=42a8be1bb8afd6c4bc94d9936309e92abb133bdc;hp=730ef4d0a90470a33b525cfe5b76c3d0ec544ab3;hb=2514fa79acba998c2a8d4e5a8288a5b3ae990377;hpb=7b36590b1778c26ad96a36002b55b17fa3e41bf6

diff --git a/crypto/evp/p_lib.c b/crypto/evp/p_lib.c
index 730ef4d0a9..42a8be1bb8 100644
--- a/crypto/evp/p_lib.c
+++ b/crypto/evp/p_lib.c
@@ -64,65 +64,45 @@
 #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)
-	{
-	if (0)
-		return 0;
 #ifndef OPENSSL_NO_RSA
-	else if (pkey->type == EVP_PKEY_RSA)
-		return(BN_num_bits(pkey->pkey.rsa->n));
+#include <openssl/rsa.h>
 #endif
 #ifndef OPENSSL_NO_DSA
-	else if (pkey->type == EVP_PKEY_DSA)
-		return(BN_num_bits(pkey->pkey.dsa->p));
+#include <openssl/dsa.h>
+#endif
+#ifndef OPENSSL_NO_DH
+#include <openssl/dh.h>
 #endif
-#ifndef OPENSSL_NO_EC
-	else if (pkey->type == EVP_PKEY_EC)
-		{
-		BIGNUM *order = BN_new();
-		int ret;
-
-		if (!order)
-			{
-			ERR_clear_error();
-			return 0;
-			}
-		if (!EC_GROUP_get_order(pkey->pkey.eckey->group, order, NULL))
-			{
-			ERR_clear_error();
-			return 0;
-			}
 
-		ret = BN_num_bits(order);
-		BN_free(order);
-		return ret;
-		}
+#ifndef OPENSSL_NO_ENGINE
+#include <openssl/engine.h>
 #endif
-	return(0);
+
+#include "asn1_locl.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_size(EVP_PKEY *pkey)
+int EVP_PKEY_security_bits(const 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.eckey));
-#endif
+		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)
@@ -163,78 +143,26 @@ int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *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)
-		{
-		if (to->pkey.eckey->group != NULL)
-			EC_GROUP_free(to->pkey.eckey->group);
-		if ((to->pkey.eckey->group = EC_GROUP_new(
-			EC_GROUP_method_of(from->pkey.eckey->group))) == NULL) 
-			goto err;
-		if (!EC_GROUP_copy(to->pkey.eckey->group,
-			from->pkey.eckey->group)) goto err;
-		}
-#endif
-	return(1);
+	if (from->ameth && from->ameth->param_copy)
+		return from->ameth->param_copy(to, from);
 err:
-	return(0);
+	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 (pkey->pkey.eckey->group == 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
-	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)
@@ -242,48 +170,22 @@ int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
 	if (a->type != b->type)
 		return -1;
 
-	if (EVP_PKEY_cmp_parameters(a, b) == 0)
-		return 0;
-
-	switch (a->type)
+	if (a->ameth)
 		{
-#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;
-#endif
-#ifndef OPENSSL_NO_EC
-	case EVP_PKEY_EC:
-		{
-		int  r = EC_POINT_cmp(b->pkey.eckey->group, 
-			b->pkey.eckey->pub_key,a->pkey.eckey->pub_key,NULL);
-		if (r != 0)
+		int ret;
+		/* Compare parameters if the algorithm has them */
+		if (a->ameth->param_cmp)
 			{
-			if (r == 1)
-				return 0;
-			else
-				return -2;
+			ret = a->ameth->param_cmp(a, b);
+			if (ret <= 0)
+				return ret;
 			}
-		}
- 		break;
-#endif
-#ifndef OPENSSL_NO_DH
-	case EVP_PKEY_DH:
-		return -2;
-#endif
-	default:
-		return -2;
+
+		if (a->ameth->pub_cmp)
+			return a->ameth->pub_cmp(a, b);
 		}
 
-	return 1;
+	return -2;
 	}
 
 EVP_PKEY *EVP_PKEY_new(void)
@@ -297,22 +199,87 @@ EVP_PKEY *EVP_PKEY_new(void)
 		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);
 	}
 
-int EVP_PKEY_assign(EVP_PKEY *pkey, int type, char *key)
+/* 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)
 	{
-	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;
+	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 (!EVP_PKEY_set_type(pkey, type))
+		return 0;
 	pkey->pkey.ptr=key;
-	return(key != NULL);
+	return (key != NULL);
+	}
+
+void *EVP_PKEY_get0(EVP_PKEY *pkey)
+	{
+	return pkey->pkey.ptr;
 	}
 
 #ifndef OPENSSL_NO_RSA
@@ -360,8 +327,9 @@ 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) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_EC);
-		return ret;
+	if (ret)
+		EC_KEY_up_ref(key);
+	return ret;
 }
 
 EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey)
@@ -371,8 +339,8 @@ EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey)
 		EVPerr(EVP_F_EVP_PKEY_GET1_EC_KEY, EVP_R_EXPECTING_A_EC_KEY);
 		return NULL;
 	}
-	CRYPTO_add(&pkey->pkey.eckey->references, 1, CRYPTO_LOCK_EC);
-	return pkey->pkey.eckey;
+	EC_KEY_up_ref(pkey->pkey.ec);
+	return pkey->pkey.ec;
 }
 #endif
 
@@ -389,7 +357,7 @@ int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key)
 
 DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
 	{
-	if(pkey->type != EVP_PKEY_DH) {
+	if(pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) {
 		EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY);
 		return NULL;
 	}
@@ -400,24 +368,29 @@ DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
 
 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)
@@ -439,37 +412,67 @@ void EVP_PKEY_free(EVP_PKEY *x)
 		}
 #endif
 	EVP_PKEY_free_it(x);
+	if (x->attributes)
+		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)
+	if (x->ameth && x->ameth->pkey_free)
 		{
-#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.eckey);
-		break;
-#endif
-#ifndef OPENSSL_NO_DH
-	case EVP_PKEY_DH:
-		DH_free(x->pkey.dh);
-		break;
-#endif
+		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);
 	}