1 /* crypto/engine/eng_openssl.c */
2 /* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
58 /* ====================================================================
59 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
60 * ECDH support in OpenSSL originally developed by
61 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
66 #include <openssl/crypto.h>
68 #include <openssl/engine.h>
69 #include <openssl/dso.h>
70 #include <openssl/pem.h>
71 #include <openssl/evp.h>
73 /* This testing gunk is implemented (and explained) lower down. It also assumes
74 * the application explicitly calls "ENGINE_load_openssl()" because this is no
75 * longer automatic in ENGINE_load_builtin_engines(). */
76 #define TEST_ENG_OPENSSL_RC4
77 #define TEST_ENG_OPENSSL_PKEY
78 /* #define TEST_ENG_OPENSSL_RC4_OTHERS */
79 #define TEST_ENG_OPENSSL_RC4_P_INIT
80 /* #define TEST_ENG_OPENSSL_RC4_P_CIPHER */
81 #define TEST_ENG_OPENSSL_SHA
82 /* #define TEST_ENG_OPENSSL_SHA_OTHERS */
83 /* #define TEST_ENG_OPENSSL_SHA_P_INIT */
84 /* #define TEST_ENG_OPENSSL_SHA_P_UPDATE */
85 /* #define TEST_ENG_OPENSSL_SHA_P_FINAL */
87 /* Now check what of those algorithms are actually enabled */
89 #undef TEST_ENG_OPENSSL_RC4
90 #undef TEST_ENG_OPENSSL_RC4_OTHERS
91 #undef TEST_ENG_OPENSSL_RC4_P_INIT
92 #undef TEST_ENG_OPENSSL_RC4_P_CIPHER
94 #if defined(OPENSSL_NO_SHA) || defined(OPENSSL_NO_SHA0) || defined(OPENSSL_NO_SHA1)
95 #undef TEST_ENG_OPENSSL_SHA
96 #undef TEST_ENG_OPENSSL_SHA_OTHERS
97 #undef TEST_ENG_OPENSSL_SHA_P_INIT
98 #undef TEST_ENG_OPENSSL_SHA_P_UPDATE
99 #undef TEST_ENG_OPENSSL_SHA_P_FINAL
102 #ifdef TEST_ENG_OPENSSL_RC4
103 static int openssl_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
104 const int **nids, int nid);
106 #ifdef TEST_ENG_OPENSSL_SHA
107 static int openssl_digests(ENGINE *e, const EVP_MD **digest,
108 const int **nids, int nid);
111 #ifdef TEST_ENG_OPENSSL_PKEY
112 static EVP_PKEY *openssl_load_privkey(ENGINE *eng, const char *key_id,
113 UI_METHOD *ui_method, void *callback_data);
116 /* The constants used when creating the ENGINE */
117 static const char *engine_openssl_id = "openssl";
118 static const char *engine_openssl_name = "Software engine support";
120 /* This internal function is used by ENGINE_openssl() and possibly by the
121 * "dynamic" ENGINE support too */
122 static int bind_helper(ENGINE *e)
124 if(!ENGINE_set_id(e, engine_openssl_id)
125 || !ENGINE_set_name(e, engine_openssl_name)
126 #ifndef TEST_ENG_OPENSSL_NO_ALGORITHMS
127 #ifndef OPENSSL_NO_RSA
128 || !ENGINE_set_RSA(e, RSA_get_default_method())
130 #ifndef OPENSSL_NO_DSA
131 || !ENGINE_set_DSA(e, DSA_get_default_method())
133 #ifndef OPENSSL_NO_ECDH
134 || !ENGINE_set_ECDH(e, ECDH_OpenSSL())
136 #ifndef OPENSSL_NO_ECDSA
137 || !ENGINE_set_ECDSA(e, ECDSA_OpenSSL())
139 #ifndef OPENSSL_NO_DH
140 || !ENGINE_set_DH(e, DH_get_default_method())
142 || !ENGINE_set_RAND(e, RAND_SSLeay())
143 #ifdef TEST_ENG_OPENSSL_RC4
144 || !ENGINE_set_ciphers(e, openssl_ciphers)
146 #ifdef TEST_ENG_OPENSSL_SHA
147 || !ENGINE_set_digests(e, openssl_digests)
150 #ifdef TEST_ENG_OPENSSL_PKEY
151 || !ENGINE_set_load_privkey_function(e, openssl_load_privkey)
155 /* If we add errors to this ENGINE, ensure the error handling is setup here */
156 /* openssl_load_error_strings(); */
160 static ENGINE *engine_openssl(void)
162 ENGINE *ret = ENGINE_new();
165 if(!bind_helper(ret))
173 void ENGINE_load_openssl(void)
175 ENGINE *toadd = engine_openssl();
178 /* If the "add" worked, it gets a structural reference. So either way,
179 * we release our just-created reference. */
184 /* This stuff is needed if this ENGINE is being compiled into a self-contained
186 #ifdef ENGINE_DYNAMIC_SUPPORT
187 static int bind_fn(ENGINE *e, const char *id)
189 if(id && (strcmp(id, engine_openssl_id) != 0))
195 IMPLEMENT_DYNAMIC_CHECK_FN()
196 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
197 #endif /* ENGINE_DYNAMIC_SUPPORT */
199 #ifdef TEST_ENG_OPENSSL_RC4
200 /* This section of code compiles an "alternative implementation" of two modes of
201 * RC4 into this ENGINE. The result is that EVP_CIPHER operation for "rc4"
202 * should under normal circumstances go via this support rather than the default
203 * EVP support. There are other symbols to tweak the testing;
204 * TEST_ENC_OPENSSL_RC4_OTHERS - print a one line message to stderr each time
205 * we're asked for a cipher we don't support (should not happen).
206 * TEST_ENG_OPENSSL_RC4_P_INIT - print a one line message to stderr each time
207 * the "init_key" handler is called.
208 * TEST_ENG_OPENSSL_RC4_P_CIPHER - ditto for the "cipher" handler.
210 #include <openssl/rc4.h>
211 #define TEST_RC4_KEY_SIZE 16
212 static int test_cipher_nids[] = {NID_rc4,NID_rc4_40};
213 static int test_cipher_nids_number = 2;
215 unsigned char key[TEST_RC4_KEY_SIZE];
218 #define test(ctx) ((TEST_RC4_KEY *)(ctx)->cipher_data)
219 static int test_rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
220 const unsigned char *iv, int enc)
222 #ifdef TEST_ENG_OPENSSL_RC4_P_INIT
223 fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_init_key() called\n");
225 memcpy(&test(ctx)->key[0],key,EVP_CIPHER_CTX_key_length(ctx));
226 RC4_set_key(&test(ctx)->ks,EVP_CIPHER_CTX_key_length(ctx),
230 static int test_rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
231 const unsigned char *in, unsigned int inl)
233 #ifdef TEST_ENG_OPENSSL_RC4_P_CIPHER
234 fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_cipher() called\n");
236 RC4(&test(ctx)->ks,inl,in,out);
239 static const EVP_CIPHER test_r4_cipher=
242 1,TEST_RC4_KEY_SIZE,0,
243 EVP_CIPH_VARIABLE_LENGTH,
247 sizeof(TEST_RC4_KEY),
252 static const EVP_CIPHER test_r4_40_cipher=
256 EVP_CIPH_VARIABLE_LENGTH,
260 sizeof(TEST_RC4_KEY),
265 static int openssl_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
266 const int **nids, int nid)
270 /* We are returning a list of supported nids */
271 *nids = test_cipher_nids;
272 return test_cipher_nids_number;
274 /* We are being asked for a specific cipher */
276 *cipher = &test_r4_cipher;
277 else if(nid == NID_rc4_40)
278 *cipher = &test_r4_40_cipher;
281 #ifdef TEST_ENG_OPENSSL_RC4_OTHERS
282 fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) returning NULL for "
292 #ifdef TEST_ENG_OPENSSL_SHA
293 /* Much the same sort of comment as for TEST_ENG_OPENSSL_RC4 */
294 #include <openssl/sha.h>
295 static int test_digest_nids[] = {NID_sha1};
296 static int test_digest_nids_number = 1;
297 static int test_sha1_init(EVP_MD_CTX *ctx)
299 #ifdef TEST_ENG_OPENSSL_SHA_P_INIT
300 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_init() called\n");
302 return SHA1_Init(ctx->md_data);
304 static int test_sha1_update(EVP_MD_CTX *ctx,const void *data,unsigned long count)
306 #ifdef TEST_ENG_OPENSSL_SHA_P_UPDATE
307 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_update() called\n");
309 return SHA1_Update(ctx->md_data,data,count);
311 static int test_sha1_final(EVP_MD_CTX *ctx,unsigned char *md)
313 #ifdef TEST_ENG_OPENSSL_SHA_P_FINAL
314 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_final() called\n");
316 return SHA1_Final(md,ctx->md_data);
318 static const EVP_MD test_sha_md=
321 NID_sha1WithRSAEncryption,
331 sizeof(EVP_MD *)+sizeof(SHA_CTX),
333 static int openssl_digests(ENGINE *e, const EVP_MD **digest,
334 const int **nids, int nid)
338 /* We are returning a list of supported nids */
339 *nids = test_digest_nids;
340 return test_digest_nids_number;
342 /* We are being asked for a specific digest */
344 *digest = &test_sha_md;
347 #ifdef TEST_ENG_OPENSSL_SHA_OTHERS
348 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) returning NULL for "
358 #ifdef TEST_ENG_OPENSSL_PKEY
359 static EVP_PKEY *openssl_load_privkey(ENGINE *eng, const char *key_id,
360 UI_METHOD *ui_method, void *callback_data)
364 fprintf(stderr, "(TEST_ENG_OPENSSL_PKEY)Loading Private key %s\n", key_id);
365 in = BIO_new_file(key_id, "r");
368 key = PEM_read_bio_PrivateKey(in, NULL, 0, NULL);