| /* 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: |
| * 1. Redistributions of source code must retain the copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * "This product includes cryptographic software written by |
| * 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 |
| * 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 |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * 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 |
| * [including the GNU Public Licence.] |
| */ |
| |
| #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> |
| #include <openssl/x509.h> |
| #ifndef OPENSSL_NO_RSA |
| #include <openssl/rsa.h> |
| #endif |
| #ifndef OPENSSL_NO_DSA |
| #include <openssl/dsa.h> |
| #endif |
| #ifndef OPENSSL_NO_DH |
| #include <openssl/dh.h> |
| #endif |
| |
| 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); |
| } |
| |
| 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 |
| |
| 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 |
| #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, 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); |
| } |
| |
| 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); |
| } |
| |
| 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); |
| } |
| |
| 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) |
| { |
| #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; |
| 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; |
| #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; |
| |
| 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); |
| } |
| |
| #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; |
| } |
| |
| 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; |
| } |
| #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; |
| } |
| |
| 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; |
| } |
| #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_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; |
| } |
| #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; |
| } |
| |
| 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; |
| } |
| #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); |
| } |
| } |
| |
| void EVP_PKEY_free(EVP_PKEY *x) |
| { |
| int i; |
| |
| 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); |
| 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) |
| { |
| #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; |
| #endif |
| } |
| } |
| |