| /* crypto/engine/eng_openssl.c */ |
| /* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL |
| * project 2000. |
| */ |
| /* ==================================================================== |
| * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved. |
| * |
| * 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 above 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 acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
| * |
| * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. For written permission, please contact |
| * licensing@OpenSSL.org. |
| * |
| * 5. Products derived from this software may not be called "OpenSSL" |
| * nor may "OpenSSL" appear in their names without prior written |
| * permission of the OpenSSL Project. |
| * |
| * 6. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| * EXPRESSED 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 OpenSSL PROJECT OR |
| * ITS 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. |
| * ==================================================================== |
| * |
| * This product includes cryptographic software written by Eric Young |
| * (eay@cryptsoft.com). This product includes software written by Tim |
| * Hudson (tjh@cryptsoft.com). |
| * |
| */ |
| /* ==================================================================== |
| * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. |
| * ECDH support in OpenSSL originally developed by |
| * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. |
| */ |
| |
| |
| #include <stdio.h> |
| #include <openssl/crypto.h> |
| #include "cryptlib.h" |
| #include <openssl/engine.h> |
| #include <openssl/dso.h> |
| #include <openssl/pem.h> |
| #include <openssl/evp.h> |
| #include <openssl/rand.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 |
| |
| /* This testing gunk is implemented (and explained) lower down. It also assumes |
| * the application explicitly calls "ENGINE_load_openssl()" because this is no |
| * longer automatic in ENGINE_load_builtin_engines(). */ |
| #define TEST_ENG_OPENSSL_RC4 |
| #define TEST_ENG_OPENSSL_PKEY |
| /* #define TEST_ENG_OPENSSL_RC4_OTHERS */ |
| #define TEST_ENG_OPENSSL_RC4_P_INIT |
| /* #define TEST_ENG_OPENSSL_RC4_P_CIPHER */ |
| #define TEST_ENG_OPENSSL_SHA |
| /* #define TEST_ENG_OPENSSL_SHA_OTHERS */ |
| /* #define TEST_ENG_OPENSSL_SHA_P_INIT */ |
| /* #define TEST_ENG_OPENSSL_SHA_P_UPDATE */ |
| /* #define TEST_ENG_OPENSSL_SHA_P_FINAL */ |
| |
| /* Now check what of those algorithms are actually enabled */ |
| #ifdef OPENSSL_NO_RC4 |
| #undef TEST_ENG_OPENSSL_RC4 |
| #undef TEST_ENG_OPENSSL_RC4_OTHERS |
| #undef TEST_ENG_OPENSSL_RC4_P_INIT |
| #undef TEST_ENG_OPENSSL_RC4_P_CIPHER |
| #endif |
| #if defined(OPENSSL_NO_SHA) || defined(OPENSSL_NO_SHA0) || defined(OPENSSL_NO_SHA1) |
| #undef TEST_ENG_OPENSSL_SHA |
| #undef TEST_ENG_OPENSSL_SHA_OTHERS |
| #undef TEST_ENG_OPENSSL_SHA_P_INIT |
| #undef TEST_ENG_OPENSSL_SHA_P_UPDATE |
| #undef TEST_ENG_OPENSSL_SHA_P_FINAL |
| #endif |
| |
| #ifdef TEST_ENG_OPENSSL_RC4 |
| static int openssl_ciphers(ENGINE *e, const EVP_CIPHER **cipher, |
| const int **nids, int nid); |
| #endif |
| #ifdef TEST_ENG_OPENSSL_SHA |
| static int openssl_digests(ENGINE *e, const EVP_MD **digest, |
| const int **nids, int nid); |
| #endif |
| |
| #ifdef TEST_ENG_OPENSSL_PKEY |
| static EVP_PKEY *openssl_load_privkey(ENGINE *eng, const char *key_id, |
| UI_METHOD *ui_method, void *callback_data); |
| #endif |
| |
| /* The constants used when creating the ENGINE */ |
| static const char *engine_openssl_id = "openssl"; |
| static const char *engine_openssl_name = "Software engine support"; |
| |
| /* This internal function is used by ENGINE_openssl() and possibly by the |
| * "dynamic" ENGINE support too */ |
| static int bind_helper(ENGINE *e) |
| { |
| if(!ENGINE_set_id(e, engine_openssl_id) |
| || !ENGINE_set_name(e, engine_openssl_name) |
| #ifndef TEST_ENG_OPENSSL_NO_ALGORITHMS |
| #ifndef OPENSSL_NO_RSA |
| || !ENGINE_set_RSA(e, RSA_get_default_method()) |
| #endif |
| #ifndef OPENSSL_NO_DSA |
| || !ENGINE_set_DSA(e, DSA_get_default_method()) |
| #endif |
| #ifndef OPENSSL_NO_ECDH |
| || !ENGINE_set_ECDH(e, ECDH_OpenSSL()) |
| #endif |
| #ifndef OPENSSL_NO_ECDSA |
| || !ENGINE_set_ECDSA(e, ECDSA_OpenSSL()) |
| #endif |
| #ifndef OPENSSL_NO_DH |
| || !ENGINE_set_DH(e, DH_get_default_method()) |
| #endif |
| || !ENGINE_set_RAND(e, RAND_SSLeay()) |
| #ifdef TEST_ENG_OPENSSL_RC4 |
| || !ENGINE_set_ciphers(e, openssl_ciphers) |
| #endif |
| #ifdef TEST_ENG_OPENSSL_SHA |
| || !ENGINE_set_digests(e, openssl_digests) |
| #endif |
| #endif |
| #ifdef TEST_ENG_OPENSSL_PKEY |
| || !ENGINE_set_load_privkey_function(e, openssl_load_privkey) |
| #endif |
| ) |
| return 0; |
| /* If we add errors to this ENGINE, ensure the error handling is setup here */ |
| /* openssl_load_error_strings(); */ |
| return 1; |
| } |
| |
| static ENGINE *engine_openssl(void) |
| { |
| ENGINE *ret = ENGINE_new(); |
| if(!ret) |
| return NULL; |
| if(!bind_helper(ret)) |
| { |
| ENGINE_free(ret); |
| return NULL; |
| } |
| return ret; |
| } |
| |
| void ENGINE_load_openssl(void) |
| { |
| ENGINE *toadd = engine_openssl(); |
| if(!toadd) return; |
| ENGINE_add(toadd); |
| /* If the "add" worked, it gets a structural reference. So either way, |
| * we release our just-created reference. */ |
| ENGINE_free(toadd); |
| ERR_clear_error(); |
| } |
| |
| /* This stuff is needed if this ENGINE is being compiled into a self-contained |
| * shared-library. */ |
| #ifdef ENGINE_DYNAMIC_SUPPORT |
| static int bind_fn(ENGINE *e, const char *id) |
| { |
| if(id && (strcmp(id, engine_openssl_id) != 0)) |
| return 0; |
| if(!bind_helper(e)) |
| return 0; |
| return 1; |
| } |
| IMPLEMENT_DYNAMIC_CHECK_FN() |
| IMPLEMENT_DYNAMIC_BIND_FN(bind_fn) |
| #endif /* ENGINE_DYNAMIC_SUPPORT */ |
| |
| #ifdef TEST_ENG_OPENSSL_RC4 |
| /* This section of code compiles an "alternative implementation" of two modes of |
| * RC4 into this ENGINE. The result is that EVP_CIPHER operation for "rc4" |
| * should under normal circumstances go via this support rather than the default |
| * EVP support. There are other symbols to tweak the testing; |
| * TEST_ENC_OPENSSL_RC4_OTHERS - print a one line message to stderr each time |
| * we're asked for a cipher we don't support (should not happen). |
| * TEST_ENG_OPENSSL_RC4_P_INIT - print a one line message to stderr each time |
| * the "init_key" handler is called. |
| * TEST_ENG_OPENSSL_RC4_P_CIPHER - ditto for the "cipher" handler. |
| */ |
| #include <openssl/rc4.h> |
| #define TEST_RC4_KEY_SIZE 16 |
| static int test_cipher_nids[] = {NID_rc4,NID_rc4_40}; |
| static int test_cipher_nids_number = 2; |
| typedef struct { |
| unsigned char key[TEST_RC4_KEY_SIZE]; |
| RC4_KEY ks; |
| } TEST_RC4_KEY; |
| #define test(ctx) ((TEST_RC4_KEY *)(ctx)->cipher_data) |
| static int test_rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, |
| const unsigned char *iv, int enc) |
| { |
| #ifdef TEST_ENG_OPENSSL_RC4_P_INIT |
| fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_init_key() called\n"); |
| #endif |
| memcpy(&test(ctx)->key[0],key,EVP_CIPHER_CTX_key_length(ctx)); |
| RC4_set_key(&test(ctx)->ks,EVP_CIPHER_CTX_key_length(ctx), |
| test(ctx)->key); |
| return 1; |
| } |
| static int test_rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
| const unsigned char *in, unsigned int inl) |
| { |
| #ifdef TEST_ENG_OPENSSL_RC4_P_CIPHER |
| fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_cipher() called\n"); |
| #endif |
| RC4(&test(ctx)->ks,inl,in,out); |
| return 1; |
| } |
| static const EVP_CIPHER test_r4_cipher= |
| { |
| NID_rc4, |
| 1,TEST_RC4_KEY_SIZE,0, |
| EVP_CIPH_VARIABLE_LENGTH, |
| test_rc4_init_key, |
| test_rc4_cipher, |
| NULL, |
| sizeof(TEST_RC4_KEY), |
| NULL, |
| NULL, |
| NULL, |
| NULL |
| }; |
| static const EVP_CIPHER test_r4_40_cipher= |
| { |
| NID_rc4_40, |
| 1,5 /* 40 bit */,0, |
| EVP_CIPH_VARIABLE_LENGTH, |
| test_rc4_init_key, |
| test_rc4_cipher, |
| NULL, |
| sizeof(TEST_RC4_KEY), |
| NULL, |
| NULL, |
| NULL, |
| NULL |
| }; |
| static int openssl_ciphers(ENGINE *e, const EVP_CIPHER **cipher, |
| const int **nids, int nid) |
| { |
| if(!cipher) |
| { |
| /* We are returning a list of supported nids */ |
| *nids = test_cipher_nids; |
| return test_cipher_nids_number; |
| } |
| /* We are being asked for a specific cipher */ |
| if(nid == NID_rc4) |
| *cipher = &test_r4_cipher; |
| else if(nid == NID_rc4_40) |
| *cipher = &test_r4_40_cipher; |
| else |
| { |
| #ifdef TEST_ENG_OPENSSL_RC4_OTHERS |
| fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) returning NULL for " |
| "nid %d\n", nid); |
| #endif |
| *cipher = NULL; |
| return 0; |
| } |
| return 1; |
| } |
| #endif |
| |
| #ifdef TEST_ENG_OPENSSL_SHA |
| /* Much the same sort of comment as for TEST_ENG_OPENSSL_RC4 */ |
| #include <openssl/sha.h> |
| static int test_digest_nids[] = {NID_sha1}; |
| static int test_digest_nids_number = 1; |
| static int test_sha1_init(EVP_MD_CTX *ctx) |
| { |
| #ifdef TEST_ENG_OPENSSL_SHA_P_INIT |
| fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_init() called\n"); |
| #endif |
| return SHA1_Init(ctx->md_data); |
| } |
| static int test_sha1_update(EVP_MD_CTX *ctx,const void *data,size_t count) |
| { |
| #ifdef TEST_ENG_OPENSSL_SHA_P_UPDATE |
| fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_update() called\n"); |
| #endif |
| return SHA1_Update(ctx->md_data,data,count); |
| } |
| static int test_sha1_final(EVP_MD_CTX *ctx,unsigned char *md) |
| { |
| #ifdef TEST_ENG_OPENSSL_SHA_P_FINAL |
| fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_final() called\n"); |
| #endif |
| return SHA1_Final(md,ctx->md_data); |
| } |
| static const EVP_MD test_sha_md= |
| { |
| NID_sha1, |
| NID_sha1WithRSAEncryption, |
| SHA_DIGEST_LENGTH, |
| 0, |
| test_sha1_init, |
| test_sha1_update, |
| test_sha1_final, |
| NULL, |
| NULL, |
| EVP_PKEY_RSA_method, |
| SHA_CBLOCK, |
| sizeof(EVP_MD *)+sizeof(SHA_CTX), |
| }; |
| static int openssl_digests(ENGINE *e, const EVP_MD **digest, |
| const int **nids, int nid) |
| { |
| if(!digest) |
| { |
| /* We are returning a list of supported nids */ |
| *nids = test_digest_nids; |
| return test_digest_nids_number; |
| } |
| /* We are being asked for a specific digest */ |
| if(nid == NID_sha1) |
| *digest = &test_sha_md; |
| else |
| { |
| #ifdef TEST_ENG_OPENSSL_SHA_OTHERS |
| fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) returning NULL for " |
| "nid %d\n", nid); |
| #endif |
| *digest = NULL; |
| return 0; |
| } |
| return 1; |
| } |
| #endif |
| |
| #ifdef TEST_ENG_OPENSSL_PKEY |
| static EVP_PKEY *openssl_load_privkey(ENGINE *eng, const char *key_id, |
| UI_METHOD *ui_method, void *callback_data) |
| { |
| BIO *in; |
| EVP_PKEY *key; |
| fprintf(stderr, "(TEST_ENG_OPENSSL_PKEY)Loading Private key %s\n", key_id); |
| in = BIO_new_file(key_id, "r"); |
| if (!in) |
| return NULL; |
| key = PEM_read_bio_PrivateKey(in, NULL, 0, NULL); |
| BIO_free(in); |
| return key; |
| } |
| #endif |
