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Constify
[openssl.git] / crypto / evp / p_lib.c
diff --git a/crypto/evp/p_lib.c b/crypto/evp/p_lib.c
index 0c2c9a1cddc2e271fc2a2eef2a1d79211895e7bb..74a007e29d5657223cbd68158067f0a7f33fbd81 100644 (file)
--- a/crypto/evp/p_lib.c
+++ b/crypto/evp/p_lib.c
@@ -58,6 +58,8 @@
 
 #include <stdio.h>
 #include "cryptlib.h"
+#include <openssl/bn.h>
+#include <openssl/err.h>
 #include <openssl/objects.h>
 #include <openssl/evp.h>
 #include <openssl/asn1_mac.h>
@@ -67,14 +69,37 @@ static void EVP_PKEY_free_it(EVP_PKEY *x);
 
 int EVP_PKEY_bits(EVP_PKEY *pkey)
        {
+       if (0)
+               return 0;
 #ifndef OPENSSL_NO_RSA
-       if (pkey->type == EVP_PKEY_RSA)
+       else if (pkey->type == EVP_PKEY_RSA)
                return(BN_num_bits(pkey->pkey.rsa->n));
-       else
 #endif
 #ifndef OPENSSL_NO_DSA
-               if (pkey->type == EVP_PKEY_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();
+               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;
+               }
 #endif
        return(0);
        }
@@ -83,7 +108,7 @@ int EVP_PKEY_size(EVP_PKEY *pkey)
        {
        if (pkey == NULL)
                return(0);
-  #ifndef OPENSSL_NO_RSA
+#ifndef OPENSSL_NO_RSA
        if (pkey->type == EVP_PKEY_RSA)
                return(RSA_size(pkey->pkey.rsa));
        else
@@ -92,6 +117,11 @@ int EVP_PKEY_size(EVP_PKEY *pkey)
                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);
        }
 
@@ -106,11 +136,21 @@ int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
                        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);
+               }
 #endif
        return(0);
        }
 
-int EVP_PKEY_copy_parameters(EVP_PKEY *to, EVP_PKEY *from)
+int EVP_PKEY_copy_parameters(EVP_PKEY *to, cpnst EVP_PKEY *from)
        {
        if (to->type != from->type)
                {
@@ -140,13 +180,25 @@ int EVP_PKEY_copy_parameters(EVP_PKEY *to, EVP_PKEY *from)
                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);
 err:
        return(0);
        }
 
-int EVP_PKEY_missing_parameters(EVP_PKEY *pkey)
+int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey)
        {
 #ifndef OPENSSL_NO_DSA
        if (pkey->type == EVP_PKEY_DSA)
@@ -158,10 +210,18 @@ int EVP_PKEY_missing_parameters(EVP_PKEY *pkey)
                        return(1);
                }
 #endif
+#ifndef OPENSSL_NO_EC
+       if (pkey->type == EVP_PKEY_EC)
+               {
+               if (pkey->pkey.eckey->group == NULL)
+                       return(1);
+               }
+#endif
+
        return(0);
        }
 
-int EVP_PKEY_cmp_parameters(EVP_PKEY *a, EVP_PKEY *b)
+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))
@@ -177,6 +237,52 @@ int EVP_PKEY_cmp_parameters(EVP_PKEY *a, EVP_PKEY *b)
        return(-1);
        }
 
+int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
+       {
+       if (a->type != b->type)
+               return -1;
+
+       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;
+#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)
+                       {
+                       if (r == 1)
+                               return 0;
+                       else
+                               return -2;
+                       }
+               }
+               break;
+#endif
+#ifndef OPENSSL_NO_DH
+       case EVP_PKEY_DH:
+               return -2;
+#endif
+       default:
+               return -2;
+               }
+
+       return 1;
+       }
+
 EVP_PKEY *EVP_PKEY_new(void)
        {
        EVP_PKEY *ret;
@@ -210,7 +316,8 @@ int EVP_PKEY_assign(EVP_PKEY *pkey, int type, char *key)
 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);
+       if(ret)
+               RSA_up_ref(key);
        return ret;
 }
 
@@ -220,7 +327,7 @@ RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey)
                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);
+       RSA_up_ref(pkey->pkey.rsa);
        return pkey->pkey.rsa;
 }
 #endif
@@ -229,7 +336,8 @@ RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey)
 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);
+       if(ret)
+               DSA_up_ref(key);
        return ret;
 }
 
@@ -239,17 +347,40 @@ DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey)
                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);
+       DSA_up_ref(pkey->pkey.dsa);
        return pkey->pkey.dsa;
 }
 #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) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_EC);
+               return ret;
+}
+
+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;
+       }
+       CRYPTO_add(&pkey->pkey.eckey->references, 1, CRYPTO_LOCK_EC);
+       return pkey->pkey.eckey;
+}
+#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) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_DH);
+       if(ret)
+               DH_up_ref(key);
        return ret;
 }
 
@@ -259,7 +390,7 @@ DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
                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);
+       DH_up_ref(pkey->pkey.dh);
        return pkey->pkey.dh;
 }
 #endif
@@ -279,6 +410,8 @@ int EVP_PKEY_type(int type)
                return(EVP_PKEY_DSA);
        case EVP_PKEY_DH:
                return(EVP_PKEY_DH);
+       case EVP_PKEY_EC:
+               return(EVP_PKEY_EC);
        default:
                return(NID_undef);
                }
@@ -324,6 +457,11 @@ static void EVP_PKEY_free_it(EVP_PKEY *x)
                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);
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