diff options
Diffstat (limited to 'openssl/crypto/evp/p_lib.c')
| -rw-r--r-- | openssl/crypto/evp/p_lib.c | 502 |
1 files changed, 502 insertions, 0 deletions
diff --git a/openssl/crypto/evp/p_lib.c b/openssl/crypto/evp/p_lib.c new file mode 100644 index 000000000..22155ecf6 --- /dev/null +++ b/openssl/crypto/evp/p_lib.c @@ -0,0 +1,502 @@ +/* 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 + } + } + |