| /* 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 <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() { |
| 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_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 EVP_cleanup() {} |