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- /* 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 <openssl/evp.h>
-
- #include <assert.h>
- #include <string.h>
-
- #include <openssl/bio.h>
- #include <openssl/dh.h>
- #include <openssl/dsa.h>
- #include <openssl/ec.h>
- #include <openssl/err.h>
- #include <openssl/mem.h>
- #include <openssl/obj.h>
- #include <openssl/rsa.h>
-
- #include "internal.h"
-
-
- extern const EVP_PKEY_ASN1_METHOD ec_asn1_meth;
- extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth;
- extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meth;
-
- EVP_PKEY *EVP_PKEY_new(void) {
- EVP_PKEY *ret;
-
- ret = OPENSSL_malloc(sizeof(EVP_PKEY));
- if (ret == NULL) {
- OPENSSL_PUT_ERROR(EVP, EVP_PKEY_new, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
-
- memset(ret, 0, sizeof(EVP_PKEY));
- ret->type = EVP_PKEY_NONE;
- ret->references = 1;
-
- return ret;
- }
-
- static void free_it(EVP_PKEY *pkey) {
- if (pkey->ameth && pkey->ameth->pkey_free) {
- pkey->ameth->pkey_free(pkey);
- pkey->pkey.ptr = NULL;
- pkey->type = EVP_PKEY_NONE;
- }
- }
-
- void EVP_PKEY_free(EVP_PKEY *pkey) {
- if (pkey == NULL) {
- return;
- }
-
- if (CRYPTO_add(&pkey->references, -1, CRYPTO_LOCK_EVP_PKEY)) {
- return;
- }
-
- free_it(pkey);
- if (pkey->attributes) {
- /* TODO(fork): layering: X509_ATTRIBUTE_free is an X.509 function. In
- * practice this path isn't called but should be removed in the future. */
- /*sk_X509_ATTRIBUTE_pop_free(pkey->attributes, X509_ATTRIBUTE_free);*/
- assert(0);
- }
- OPENSSL_free(pkey);
- }
-
- int EVP_PKEY_is_opaque(const EVP_PKEY *pkey) {
- if (pkey->ameth && pkey->ameth->pkey_opaque) {
- return pkey->ameth->pkey_opaque(pkey);
- }
- return 0;
- }
-
- int EVP_PKEY_supports_digest(const EVP_PKEY *pkey, const EVP_MD *md) {
- if (pkey->ameth && pkey->ameth->pkey_supports_digest) {
- return pkey->ameth->pkey_supports_digest(pkey, md);
- }
- return 1;
- }
-
- int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b) {
- 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;
- }
-
- EVP_PKEY *EVP_PKEY_dup(EVP_PKEY *pkey) {
- CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
- return pkey;
- }
-
- int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) {
- if (to->type != from->type) {
- OPENSSL_PUT_ERROR(EVP, EVP_PKEY_copy_parameters, EVP_R_DIFFERENT_KEY_TYPES);
- goto err;
- }
-
- if (EVP_PKEY_missing_parameters(from)) {
- OPENSSL_PUT_ERROR(EVP, 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) {
- if (pkey->ameth && pkey->ameth->param_missing) {
- return pkey->ameth->param_missing(pkey);
- }
- return 0;
- }
-
- int EVP_PKEY_size(const EVP_PKEY *pkey) {
- if (pkey && pkey->ameth && pkey->ameth->pkey_size) {
- return pkey->ameth->pkey_size(pkey);
- }
- return 0;
- }
-
- 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_id(const EVP_PKEY *pkey) {
- return pkey->type;
- }
-
- /* TODO(fork): remove the first argument. */
- const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pengine, int nid) {
- switch (nid) {
- case EVP_PKEY_RSA:
- case EVP_PKEY_RSA2:
- return &rsa_asn1_meth;
- case EVP_PKEY_HMAC:
- return &hmac_asn1_meth;
- case EVP_PKEY_EC:
- return &ec_asn1_meth;
- default:
- return NULL;
- }
- }
-
- int EVP_PKEY_type(int nid) {
- const EVP_PKEY_ASN1_METHOD *meth = EVP_PKEY_asn1_find(NULL, nid);
- if (meth == NULL) {
- return NID_undef;
- }
- return meth->pkey_id;
- }
-
- EVP_PKEY *EVP_PKEY_new_mac_key(int type, ENGINE *e, const uint8_t *mac_key,
- size_t mac_key_len) {
- EVP_PKEY_CTX *mac_ctx = NULL;
- EVP_PKEY *ret = NULL;
-
- mac_ctx = EVP_PKEY_CTX_new_id(type, e);
- if (!mac_ctx) {
- return NULL;
- }
-
- if (EVP_PKEY_keygen_init(mac_ctx) <= 0 ||
- EVP_PKEY_CTX_ctrl(mac_ctx, -1, EVP_PKEY_OP_KEYGEN,
- EVP_PKEY_CTRL_SET_MAC_KEY, mac_key_len,
- (uint8_t *)mac_key) <= 0 ||
- EVP_PKEY_keygen(mac_ctx, &ret) <= 0) {
- ret = NULL;
- goto merr;
- }
-
- merr:
- if (mac_ctx)
- EVP_PKEY_CTX_free(mac_ctx);
- return ret;
- }
-
- int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) {
- if (EVP_PKEY_assign_RSA(pkey, key)) {
- RSA_up_ref(key);
- return 1;
- }
- return 0;
- }
-
- int EVP_PKEY_assign_RSA(EVP_PKEY *pkey, RSA *key) {
- return EVP_PKEY_assign(pkey, EVP_PKEY_RSA, key);
- }
-
- RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) {
- if (pkey->type != EVP_PKEY_RSA) {
- OPENSSL_PUT_ERROR(EVP, EVP_PKEY_get1_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
- return NULL;
- }
- RSA_up_ref(pkey->pkey.rsa);
- return pkey->pkey.rsa;
- }
-
- int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) {
- if (EVP_PKEY_assign_DSA(pkey, key)) {
- DSA_up_ref(key);
- return 1;
- }
- return 0;
- }
-
- int EVP_PKEY_assign_DSA(EVP_PKEY *pkey, DSA *key) {
- return EVP_PKEY_assign(pkey, EVP_PKEY_DSA, key);
- }
-
- DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) {
- if (pkey->type != EVP_PKEY_DSA) {
- OPENSSL_PUT_ERROR(EVP, EVP_PKEY_get1_DSA, EVP_R_EXPECTING_A_DSA_KEY);
- return NULL;
- }
- DSA_up_ref(pkey->pkey.dsa);
- return pkey->pkey.dsa;
- }
-
- int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) {
- if (EVP_PKEY_assign_EC_KEY(pkey, key)) {
- EC_KEY_up_ref(key);
- return 1;
- }
- return 0;
- }
-
- int EVP_PKEY_assign_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) {
- return EVP_PKEY_assign(pkey, EVP_PKEY_EC, key);
- }
-
- EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) {
- if (pkey->type != EVP_PKEY_EC) {
- OPENSSL_PUT_ERROR(EVP, EVP_PKEY_get1_EC_KEY, EVP_R_EXPECTING_AN_EC_KEY_KEY);
- return NULL;
- }
- EC_KEY_up_ref(pkey->pkey.ec);
- return pkey->pkey.ec;
- }
-
- int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) {
- if (EVP_PKEY_assign_DH(pkey, key)) {
- DH_up_ref(key);
- return 1;
- }
- return 0;
- }
-
- int EVP_PKEY_assign_DH(EVP_PKEY *pkey, DH *key) {
- return EVP_PKEY_assign(pkey, EVP_PKEY_EC, key);
- }
-
- DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) {
- if (pkey->type != EVP_PKEY_DH) {
- OPENSSL_PUT_ERROR(EVP, EVP_PKEY_get1_DH, EVP_R_EXPECTING_A_DH_KEY);
- return NULL;
- }
- DH_up_ref(pkey->pkey.dh);
- return pkey->pkey.dh;
- }
-
- 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;
- }
-
- const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pengine,
- const char *name,
- size_t len) {
- if (len == 3 && memcmp(name, "RSA", 3) == 0) {
- return &rsa_asn1_meth;
- } else if (len == 4 && memcmp(name, "HMAC", 4) == 0) {
- return &hmac_asn1_meth;
- } if (len == 2 && memcmp(name, "EC", 2) == 0) {
- return &ec_asn1_meth;
- }
- return NULL;
- }
-
- int EVP_PKEY_set_type(EVP_PKEY *pkey, int type) {
- const EVP_PKEY_ASN1_METHOD *ameth;
-
- if (pkey && pkey->pkey.ptr) {
- free_it(pkey);
- }
-
- ameth = EVP_PKEY_asn1_find(NULL, type);
- if (ameth == NULL) {
- OPENSSL_PUT_ERROR(EVP, EVP_PKEY_set_type, EVP_R_UNSUPPORTED_ALGORITHM);
- ERR_add_error_dataf("algorithm %d (%s)", type, OBJ_nid2sn(type));
- return 0;
- }
-
- if (pkey) {
- pkey->ameth = ameth;
- pkey->type = pkey->ameth->pkey_id;
- }
-
- return 1;
- }
-
-
-
- int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) {
- if (a->type != b->type) {
- return -1;
- }
- if (a->ameth && a->ameth->param_cmp) {
- return a->ameth->param_cmp(a, b);
- }
- return -2;
- }
-
- static int print_unsupported(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 print_unsupported(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 print_unsupported(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 print_unsupported(out, pkey, indent, "Parameters");
- }
-
- int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) {
- return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD, 0,
- (void *)md);
- }
-
- int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **out_md) {
- return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_GET_MD,
- 0, (void *)out_md);
- }
-
- void OpenSSL_add_all_algorithms(void) {}
-
- void EVP_cleanup(void) {}
|