2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 2008 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 * ====================================================================
57 #include <openssl/crypto.h>
58 #include <openssl/buffer.h>
59 #include <openssl/bn.h>
61 #ifdef OPENSSL_SYS_WIN32
62 #ifndef OPENSSL_NO_CAPIENG
64 #include <openssl/rsa.h>
69 #define _WIN32_WINNT 0x0400
75 * This module uses several "new" interfaces, among which is
76 * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
77 * one of possible values you can pass to function in question. By
78 * checking if it's defined we can see if wincrypt.h and accompanying
79 * crypt32.lib are in shape. The native MingW32 headers up to and
80 * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
81 * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
82 * so we check for these too and avoid compiling.
83 * Yes, it's rather "weak" test and if compilation fails,
84 * then re-configure with -DOPENSSL_NO_CAPIENG.
86 #if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
87 defined(CERT_STORE_PROV_SYSTEM_A) && \
88 defined(CERT_STORE_READONLY_FLAG)
89 # define __COMPILE_CAPIENG
90 #endif /* CERT_KEY_PROV_INFO_PROP_ID */
91 #endif /* OPENSSL_NO_CAPIENG */
92 #endif /* OPENSSL_SYS_WIN32 */
94 #ifdef __COMPILE_CAPIENG
96 #undef X509_EXTENSIONS
99 /* Definitions which may be missing from earlier version of headers */
100 #ifndef CERT_STORE_OPEN_EXISTING_FLAG
101 #define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
104 #ifndef CERT_STORE_CREATE_NEW_FLAG
105 #define CERT_STORE_CREATE_NEW_FLAG 0x00002000
108 #ifndef CERT_SYSTEM_STORE_CURRENT_USER
109 #define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
112 #include <openssl/engine.h>
113 #include <openssl/pem.h>
114 #include <openssl/x509v3.h>
116 #include "e_capi_err.h"
117 #include "e_capi_err.c"
120 static const char *engine_capi_id = "capi";
121 static const char *engine_capi_name = "CryptoAPI ENGINE";
123 typedef struct CAPI_CTX_st CAPI_CTX;
124 typedef struct CAPI_KEY_st CAPI_KEY;
126 static void capi_addlasterror(void);
127 static void capi_adderror(DWORD err);
129 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
131 static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
132 static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
133 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
134 void capi_free_key(CAPI_KEY *key);
136 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore);
138 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
140 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
141 UI_METHOD *ui_method, void *callback_data);
142 static int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
143 unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
144 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
145 unsigned char *to, RSA *rsa, int padding);
146 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
147 unsigned char *to, RSA *rsa, int padding);
148 static int capi_rsa_free(RSA *rsa);
150 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
152 static int capi_dsa_free(DSA *dsa);
154 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
155 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
156 STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data);
158 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
159 #ifdef OPENSSL_CAPIENG_DIALOG
160 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
163 typedef PCCERT_CONTEXT (WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,
164 LPCWSTR, DWORD, DWORD,
166 typedef HWND (WINAPI *GETCONSWIN)(void);
168 /* This structure contains CAPI ENGINE specific data:
169 * it contains various global options and affects how
170 * other functions behave.
173 #define CAPI_DBG_TRACE 2
174 #define CAPI_DBG_ERROR 1
179 /* Parameters to use for container lookup */
183 /* Certificate store name to use */
185 LPSTR ssl_client_store;
186 /* System store flags */
189 /* Lookup string meanings in load_private_key */
190 /* Substring of subject: uses "storename" */
191 #define CAPI_LU_SUBSTR 1
192 /* Friendly name: uses storename */
193 #define CAPI_LU_FNAME 2
194 /* Container name: uses cspname, keytype */
195 #define CAPI_LU_CONTNAME 3
197 /* Info to dump with dumpcerts option */
198 /* Issuer and serial name strings */
199 #define CAPI_DMP_SUMMARY 0x1
201 #define CAPI_DMP_FNAME 0x2
202 /* Full X509_print dump */
203 #define CAPI_DMP_FULL 0x4
204 /* Dump PEM format certificate */
205 #define CAPI_DMP_PEM 0x8
206 /* Dump pseudo key (if possible) */
207 #define CAPI_DMP_PSKEY 0x10
208 /* Dump key info (if possible) */
209 #define CAPI_DMP_PKEYINFO 0x20
212 int (*client_cert_select)(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
214 CERTDLG certselectdlg;
215 GETCONSWIN getconswindow;
219 static CAPI_CTX *capi_ctx_new();
220 static void capi_ctx_free(CAPI_CTX *ctx);
221 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check);
222 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
224 #define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
225 #define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
226 #define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
227 #define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
228 #define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
229 #define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
230 #define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
231 #define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
232 #define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
233 #define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
234 #define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
235 #define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
236 #define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
237 #define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
239 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
240 {CAPI_CMD_LIST_CERTS,
242 "List all certificates in store",
243 ENGINE_CMD_FLAG_NO_INPUT},
244 {CAPI_CMD_LOOKUP_CERT,
246 "Lookup and output certificates",
247 ENGINE_CMD_FLAG_STRING},
248 {CAPI_CMD_DEBUG_LEVEL,
250 "debug level (1=errors, 2=trace)",
251 ENGINE_CMD_FLAG_NUMERIC},
252 {CAPI_CMD_DEBUG_FILE,
254 "debugging filename)",
255 ENGINE_CMD_FLAG_STRING},
258 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
259 ENGINE_CMD_FLAG_NUMERIC},
263 ENGINE_CMD_FLAG_NO_INPUT},
264 {CAPI_CMD_SET_CSP_IDX,
267 ENGINE_CMD_FLAG_NUMERIC},
268 {CAPI_CMD_SET_CSP_NAME,
270 "Set CSP name, (default CSP used if not specified)",
271 ENGINE_CMD_FLAG_STRING},
272 {CAPI_CMD_SET_CSP_TYPE,
274 "Set CSP type, (default RSA_PROV_FULL)",
275 ENGINE_CMD_FLAG_NUMERIC},
276 {CAPI_CMD_LIST_CONTAINERS,
278 "list container names",
279 ENGINE_CMD_FLAG_NO_INPUT},
280 {CAPI_CMD_LIST_OPTIONS,
282 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
283 "32=private key info)",
284 ENGINE_CMD_FLAG_NUMERIC},
285 {CAPI_CMD_LOOKUP_METHOD,
287 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
288 ENGINE_CMD_FLAG_NUMERIC},
289 {CAPI_CMD_STORE_NAME,
291 "certificate store name, default \"MY\"",
292 ENGINE_CMD_FLAG_STRING},
293 {CAPI_CMD_STORE_FLAGS,
295 "Certificate store flags: 1 = system store",
296 ENGINE_CMD_FLAG_NUMERIC},
301 static int capi_idx = -1;
302 static int rsa_capi_idx = -1;
303 static int dsa_capi_idx = -1;
304 static int cert_capi_idx = -1;
306 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
313 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
316 ctx = ENGINE_get_ex_data(e, capi_idx);
317 out = BIO_new_fp(stdout, BIO_NOCLOSE);
320 case CAPI_CMD_LIST_CSPS:
321 ret = capi_list_providers(ctx, out);
324 case CAPI_CMD_LIST_CERTS:
325 ret = capi_list_certs(ctx, out, NULL);
328 case CAPI_CMD_LOOKUP_CERT:
329 ret = capi_list_certs(ctx, out, p);
332 case CAPI_CMD_LIST_CONTAINERS:
333 ret = capi_list_containers(ctx, out);
336 case CAPI_CMD_STORE_NAME:
338 OPENSSL_free(ctx->storename);
339 ctx->storename = BUF_strdup(p);
340 CAPI_trace(ctx, "Setting store name to %s\n", p);
343 case CAPI_CMD_STORE_FLAGS:
346 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
347 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
351 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
352 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
354 CAPI_trace(ctx, "Setting flags to %d\n", i);
357 case CAPI_CMD_DEBUG_LEVEL:
358 ctx->debug_level = (int)i;
359 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
362 case CAPI_CMD_DEBUG_FILE:
363 ctx->debug_file = BUF_strdup(p);
364 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
367 case CAPI_CMD_KEYTYPE:
369 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
372 case CAPI_CMD_SET_CSP_IDX:
373 ret = capi_ctx_set_provname_idx(ctx, i);
376 case CAPI_CMD_LIST_OPTIONS:
380 case CAPI_CMD_LOOKUP_METHOD:
383 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
386 ctx->lookup_method = i;
389 case CAPI_CMD_SET_CSP_NAME:
390 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
393 case CAPI_CMD_SET_CSP_TYPE:
398 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
407 static RSA_METHOD capi_rsa_method =
409 "CryptoAPI RSA method",
412 capi_rsa_priv_enc, /* priv_enc */
413 capi_rsa_priv_dec, /* priv_dec */
417 capi_rsa_free, /* finish */
418 RSA_FLAG_SIGN_VER, /* flags */
420 capi_rsa_sign, /* rsa_sign */
424 static DSA_METHOD capi_dsa_method =
426 "CryptoAPI DSA method",
427 capi_dsa_do_sign, /* dsa_do_sign */
428 0, /* dsa_sign_setup */
429 0, /* dsa_do_verify */
433 capi_dsa_free, /* finish */
436 0, /* dsa_paramgen */
440 static int capi_init(ENGINE *e)
443 const RSA_METHOD *ossl_rsa_meth;
444 const DSA_METHOD *ossl_dsa_meth;
445 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
446 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
448 ctx = capi_ctx_new();
449 if (!ctx || (capi_idx < 0))
452 ENGINE_set_ex_data(e, capi_idx, ctx);
453 /* Setup RSA_METHOD */
454 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
455 ossl_rsa_meth = RSA_PKCS1_SSLeay();
456 capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
457 capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
458 capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
459 capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
461 /* Setup DSA Method */
462 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
463 ossl_dsa_meth = DSA_OpenSSL();
464 capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
465 capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
466 capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
468 #ifdef OPENSSL_CAPIENG_DIALOG
470 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
471 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
473 ctx->certselectdlg = (CERTDLG)GetProcAddress(cryptui, "CryptUIDlgSelectCertificateFromStore");
475 ctx->getconswindow = (GETCONSWIN)GetProcAddress(kernel, "GetConsoleWindow");
476 if (cryptui && !OPENSSL_isservice())
477 ctx->client_cert_select = cert_select_dialog;
485 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
491 static int capi_destroy(ENGINE *e)
493 ERR_unload_CAPI_strings();
497 static int capi_finish(ENGINE *e)
500 ctx = ENGINE_get_ex_data(e, capi_idx);
502 ENGINE_set_ex_data(e, capi_idx, NULL);
507 /* CryptoAPI key application data. This contains
508 * a handle to the private key container (for sign operations)
509 * and a handle to the key (for decrypt operations).
514 /* Associated certificate context (if any) */
515 PCCERT_CONTEXT pcert;
521 static int bind_capi(ENGINE *e)
523 if (!ENGINE_set_id(e, engine_capi_id)
524 || !ENGINE_set_name(e, engine_capi_name)
525 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
526 || !ENGINE_set_init_function(e, capi_init)
527 || !ENGINE_set_finish_function(e, capi_finish)
528 || !ENGINE_set_destroy_function(e, capi_destroy)
529 || !ENGINE_set_RSA(e, &capi_rsa_method)
530 || !ENGINE_set_DSA(e, &capi_dsa_method)
531 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
532 || !ENGINE_set_load_ssl_client_cert_function(e,
533 capi_load_ssl_client_cert)
534 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
535 || !ENGINE_set_ctrl_function(e, capi_ctrl))
537 ERR_load_CAPI_strings();
543 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
544 static int bind_helper(ENGINE *e, const char *id)
546 if(id && (strcmp(id, engine_capi_id) != 0))
552 IMPLEMENT_DYNAMIC_CHECK_FN()
553 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
555 static ENGINE *engine_capi(void)
557 ENGINE *ret = ENGINE_new();
568 void ENGINE_load_capi(void)
570 /* Copied from eng_[openssl|dyn].c */
571 ENGINE *toadd = engine_capi();
580 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
583 /* Reverse buffer in place: since this is a keyblob structure
584 * that will be freed up after conversion anyway it doesn't
585 * matter if we change it.
587 for(i = 0; i < binlen / 2; i++)
591 bin[i] = bin[binlen - i - 1];
592 bin[binlen - i - 1] = c;
595 if (!BN_bin2bn(bin, binlen, bn))
600 /* Given a CAPI_KEY get an EVP_PKEY structure */
602 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
604 unsigned char *pubkey = NULL;
609 EVP_PKEY *ret = NULL;
610 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len))
612 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
617 pubkey = OPENSSL_malloc(len);
622 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len))
624 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
629 bh = (BLOBHEADER *)pubkey;
630 if (bh->bType != PUBLICKEYBLOB)
632 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
635 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX)
639 unsigned char *rsa_modulus;
640 rp = (RSAPUBKEY *)(bh + 1);
641 if (rp->magic != 0x31415352)
644 BIO_snprintf(magstr, 10, "%lx", rp->magic);
645 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
646 ERR_add_error_data(2, "magic=0x", magstr);
649 rsa_modulus = (unsigned char *)(rp + 1);
650 rkey = RSA_new_method(eng);
657 if (!rkey->e || !rkey->n)
660 if (!BN_set_word(rkey->e, rp->pubexp))
663 rsa_modlen = rp->bitlen / 8;
664 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
667 RSA_set_ex_data(rkey, rsa_capi_idx, key);
669 if (!(ret = EVP_PKEY_new()))
672 EVP_PKEY_assign_RSA(ret, rkey);
676 else if (bh->aiKeyAlg == CALG_DSS_SIGN)
681 dp = (DSSPUBKEY *)(bh + 1);
682 if (dp->magic != 0x31535344)
685 BIO_snprintf(magstr, 10, "%lx", dp->magic);
686 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
687 ERR_add_error_data(2, "magic=0x", magstr);
690 dsa_plen = dp->bitlen / 8;
691 btmp = (unsigned char *)(dp + 1);
692 dkey = DSA_new_method(eng);
698 dkey->pub_key = BN_new();
699 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
701 if (!lend_tobn(dkey->p, btmp, dsa_plen))
704 if (!lend_tobn(dkey->q, btmp, 20))
707 if (!lend_tobn(dkey->g, btmp, dsa_plen))
710 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
714 DSA_set_ex_data(dkey, dsa_capi_idx, key);
716 if (!(ret = EVP_PKEY_new()))
719 EVP_PKEY_assign_DSA(ret, dkey);
725 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
726 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
727 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
734 OPENSSL_free(pubkey);
746 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
751 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
752 UI_METHOD *ui_method, void *callback_data)
757 ctx = ENGINE_get_ex_data(eng, capi_idx);
761 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
765 key = capi_find_key(ctx, key_id);
770 ret = capi_get_pkey(eng, key);
778 /* CryptoAPI RSA operations */
780 int capi_rsa_priv_enc(int flen, const unsigned char *from,
781 unsigned char *to, RSA *rsa, int padding)
783 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
787 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
788 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
798 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
800 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
802 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
805 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
808 /* Convert the signature type to a CryptoAPI algorithm ID */
820 alg = CALG_SSL3_SHAMD5;
825 BIO_snprintf(algstr, 10, "%lx", dtype);
826 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
827 ERR_add_error_data(2, "NID=0x", algstr);
834 /* Create the hash object */
835 if(!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash))
837 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
841 /* Set the hash value to the value passed */
843 if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0))
845 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
851 /* Finally sign it */
852 slen = RSA_size(rsa);
853 if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, sigret, &slen))
855 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
862 /* Inplace byte reversal of signature */
863 for(i = 0; i < slen / 2; i++)
867 sigret[i] = sigret[slen - i - 1];
868 sigret[slen - i - 1] = c;
876 CryptDestroyHash(hash);
881 int capi_rsa_priv_dec(int flen, const unsigned char *from,
882 unsigned char *to, RSA *rsa, int padding)
885 unsigned char *tmpbuf;
888 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
890 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
893 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
896 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
900 if(padding != RSA_PKCS1_PADDING)
903 BIO_snprintf(errstr, 10, "%d", padding);
904 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
905 ERR_add_error_data(2, "padding=", errstr);
909 /* Create temp reverse order version of input */
910 if(!(tmpbuf = OPENSSL_malloc(flen)) )
912 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
915 for(i = 0; i < flen; i++)
916 tmpbuf[flen - i - 1] = from[i];
918 /* Finally decrypt it */
919 if(!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen))
921 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
923 OPENSSL_free(tmpbuf);
926 else memcpy(to, tmpbuf, flen);
928 OPENSSL_free(tmpbuf);
933 static int capi_rsa_free(RSA *rsa)
936 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
937 capi_free_key(capi_key);
938 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
942 /* CryptoAPI DSA operations */
944 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
952 unsigned char csigbuf[40];
954 ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
956 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
958 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
962 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
968 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
972 /* Create the hash object */
973 if(!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash))
975 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
980 /* Set the hash value to the value passed */
981 if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0))
983 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
989 /* Finally sign it */
990 slen = sizeof(csigbuf);
991 if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen))
993 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
1004 if (!ret->r || !ret->s)
1006 if (!lend_tobn(ret->r, csigbuf, 20)
1007 || !lend_tobn(ret->s, csigbuf + 20, 20))
1018 OPENSSL_cleanse(csigbuf, 40);
1019 CryptDestroyHash(hash);
1023 static int capi_dsa_free(DSA *dsa)
1026 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1027 capi_free_key(capi_key);
1028 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1032 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, va_list argptr)
1036 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1038 out = BIO_new_file(ctx->debug_file, "a+");
1039 BIO_vprintf(out, format, argptr);
1043 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
1046 va_start(args, format);
1047 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1051 static void capi_addlasterror(void)
1053 capi_adderror(GetLastError());
1056 static void capi_adderror(DWORD err)
1059 BIO_snprintf(errstr, 10, "%lX", err);
1060 ERR_add_error_data(2, "Error code= 0x", errstr);
1063 static char *wide_to_asc(LPWSTR wstr)
1070 len_0 = (int)wcslen(wstr)+1; /* WideCharToMultiByte expects int */
1071 sz = WideCharToMultiByte(CP_ACP,0,wstr,len_0,NULL,0,NULL,NULL);
1074 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1077 str = OPENSSL_malloc(sz);
1080 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1083 if (!WideCharToMultiByte(CP_ACP,0,wstr,len_0,str,sz,NULL,NULL))
1086 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1092 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, DWORD idx)
1096 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1097 if (!CryptEnumProvidersA(idx, NULL, 0, ptype, NULL, &len))
1099 err = GetLastError();
1100 if (err == ERROR_NO_MORE_ITEMS)
1102 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1106 name = OPENSSL_malloc(len);
1107 if (!CryptEnumProvidersA(idx, NULL, 0, ptype, name, &len))
1109 err = GetLastError();
1110 if (err == ERROR_NO_MORE_ITEMS)
1112 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1117 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name, *ptype);
1122 static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
1126 LPSTR provname = NULL;
1127 CAPI_trace(ctx, "capi_list_providers\n");
1128 BIO_printf(out, "Available CSPs:\n");
1129 for(idx = 0; ; idx++)
1131 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1136 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1137 OPENSSL_free(provname);
1142 static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
1146 DWORD err, idx, flags, buflen = 0, clen;
1148 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, ctx->csptype);
1149 if (!CryptAcquireContextA(&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT))
1151 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1152 capi_addlasterror();
1155 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST))
1157 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1158 capi_addlasterror();
1161 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1164 cname = OPENSSL_malloc(buflen);
1167 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1171 for (idx = 0;;idx++)
1177 flags = CRYPT_FIRST;
1180 if(!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags))
1182 err = GetLastError();
1183 if (err == ERROR_NO_MORE_ITEMS)
1185 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1189 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", cname, clen, idx, flags);
1190 if (!cname[0] && (clen == buflen))
1192 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1195 BIO_printf(out, "%d. %s\n", idx, cname);
1203 OPENSSL_free(cname);
1204 CryptReleaseContext(hprov, 0);
1209 CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1212 CRYPT_KEY_PROV_INFO *pinfo;
1214 if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1216 pinfo = OPENSSL_malloc(len);
1219 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1222 if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len))
1224 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1225 capi_addlasterror();
1226 OPENSSL_free(pinfo);
1232 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, CRYPT_KEY_PROV_INFO *pinfo)
1234 char *provname = NULL, *contname = NULL;
1237 BIO_printf(out, " No Private Key\n");
1240 provname = wide_to_asc(pinfo->pwszProvName);
1241 contname = wide_to_asc(pinfo->pwszContainerName);
1242 if (!provname || !contname)
1245 BIO_printf(out, " Private Key Info:\n");
1246 BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname, pinfo->dwProvType);
1247 BIO_printf(out, " Container Name: %s, Key Type %d\n", contname, pinfo->dwKeySpec);
1250 OPENSSL_free(provname);
1252 OPENSSL_free(contname);
1255 char * capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1260 CAPI_trace(ctx, "capi_cert_get_fname\n");
1261 if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1263 wfname = OPENSSL_malloc(dlen);
1264 if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen))
1266 char *fname = wide_to_asc(wfname);
1267 OPENSSL_free(wfname);
1270 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1271 capi_addlasterror();
1273 OPENSSL_free(wfname);
1278 void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1282 unsigned long flags = ctx->dump_flags;
1283 if (flags & CAPI_DMP_FNAME)
1286 fname = capi_cert_get_fname(ctx, cert);
1289 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1290 OPENSSL_free(fname);
1293 BIO_printf(out, " <No Friendly Name>\n");
1296 p = cert->pbCertEncoded;
1297 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1299 BIO_printf(out, " <Can't parse certificate>\n");
1300 if (flags & CAPI_DMP_SUMMARY)
1302 BIO_printf(out, " Subject: ");
1303 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1304 BIO_printf(out, "\n Issuer: ");
1305 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1306 BIO_printf(out, "\n");
1308 if (flags & CAPI_DMP_FULL)
1309 X509_print_ex(out, x, XN_FLAG_ONELINE,0);
1311 if (flags & CAPI_DMP_PKEYINFO)
1313 CRYPT_KEY_PROV_INFO *pinfo;
1314 pinfo = capi_get_prov_info(ctx, cert);
1315 capi_dump_prov_info(ctx, out, pinfo);
1317 OPENSSL_free(pinfo);
1320 if (flags & CAPI_DMP_PEM)
1321 PEM_write_bio_X509(out, x);
1325 HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1330 storename = ctx->storename;
1333 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1335 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1336 ctx->store_flags, storename);
1339 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1340 capi_addlasterror();
1345 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1351 PCCERT_CONTEXT cert = NULL;
1353 storename = ctx->storename;
1356 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1358 hstore = capi_open_store(ctx, storename);
1363 cert = capi_find_cert(ctx, id, hstore);
1369 capi_dump_cert(ctx, out, cert);
1370 CertFreeCertificateContext(cert);
1376 LPWSTR fname = NULL;
1377 cert = CertEnumCertificatesInStore(hstore, cert);
1380 BIO_printf(out, "Certificate %d\n", idx);
1381 capi_dump_cert(ctx, out, cert);
1385 CertCloseStore(hstore, 0);
1389 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore)
1391 PCCERT_CONTEXT cert = NULL;
1394 switch(ctx->lookup_method)
1396 case CAPI_LU_SUBSTR:
1397 return CertFindCertificateInStore(hstore,
1398 X509_ASN_ENCODING, 0,
1399 CERT_FIND_SUBJECT_STR_A, id, NULL);
1403 cert = CertEnumCertificatesInStore(hstore, cert);
1406 fname = capi_cert_get_fname(ctx, cert);
1409 if (strcmp(fname, id))
1413 OPENSSL_free(fname);
1423 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec)
1426 key = OPENSSL_malloc(sizeof(CAPI_KEY));
1427 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1428 contname, provname, ptype);
1429 if (!CryptAcquireContextA(&key->hprov, contname, provname, ptype, 0))
1431 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1432 capi_addlasterror();
1435 if (!CryptGetUserKey(key->hprov, keyspec, &key->key))
1437 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1438 capi_addlasterror();
1439 CryptReleaseContext(key->hprov, 0);
1442 key->keyspec = keyspec;
1451 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1453 CAPI_KEY *key = NULL;
1454 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1455 char *provname = NULL, *contname = NULL;
1456 pinfo = capi_get_prov_info(ctx, cert);
1459 provname = wide_to_asc(pinfo->pwszProvName);
1460 contname = wide_to_asc(pinfo->pwszContainerName);
1461 if (!provname || !contname)
1463 key = capi_get_key(ctx, contname, provname,
1464 pinfo->dwProvType, pinfo->dwKeySpec);
1468 OPENSSL_free(pinfo);
1470 OPENSSL_free(provname);
1472 OPENSSL_free(contname);
1476 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1478 PCCERT_CONTEXT cert;
1480 CAPI_KEY *key = NULL;
1481 switch (ctx->lookup_method)
1483 case CAPI_LU_SUBSTR:
1485 hstore = capi_open_store(ctx, NULL);
1488 cert = capi_find_cert(ctx, id, hstore);
1491 key = capi_get_cert_key(ctx, cert);
1492 CertFreeCertificateContext(cert);
1494 CertCloseStore(hstore, 0);
1497 case CAPI_LU_CONTNAME:
1498 key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype,
1506 void capi_free_key(CAPI_KEY *key)
1510 CryptDestroyKey(key->key);
1511 CryptReleaseContext(key->hprov, 0);
1513 CertFreeCertificateContext(key->pcert);
1518 /* Initialize a CAPI_CTX structure */
1520 static CAPI_CTX *capi_ctx_new()
1523 ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1526 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1529 ctx->cspname = NULL;
1530 ctx->csptype = PROV_RSA_FULL;
1531 ctx->dump_flags = CAPI_DMP_SUMMARY|CAPI_DMP_FNAME;
1532 ctx->keytype = AT_KEYEXCHANGE;
1533 ctx->storename = NULL;
1534 ctx->ssl_client_store = NULL;
1535 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1536 CERT_STORE_READONLY_FLAG |
1537 CERT_SYSTEM_STORE_CURRENT_USER;
1538 ctx->lookup_method = CAPI_LU_SUBSTR;
1539 ctx->debug_level = 0;
1540 ctx->debug_file = NULL;
1541 ctx->client_cert_select = cert_select_simple;
1545 static void capi_ctx_free(CAPI_CTX *ctx)
1547 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1551 OPENSSL_free(ctx->cspname);
1552 if (ctx->debug_file)
1553 OPENSSL_free(ctx->debug_file);
1555 OPENSSL_free(ctx->storename);
1556 if (ctx->ssl_client_store)
1557 OPENSSL_free(ctx->ssl_client_store);
1561 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check)
1563 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1567 if (!CryptAcquireContextA(&hprov, NULL, pname, type,
1568 CRYPT_VERIFYCONTEXT))
1570 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1571 capi_addlasterror();
1574 CryptReleaseContext(hprov, 0);
1576 ctx->cspname = BUF_strdup(pname);
1577 ctx->csptype = type;
1581 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1585 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1587 return capi_ctx_set_provname(ctx, pname, type, 0);
1590 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1594 /* Special case: empty list: match anything */
1595 if (sk_X509_NAME_num(ca_dn) <= 0)
1597 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++)
1599 nm = sk_X509_NAME_value(ca_dn, i);
1600 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1608 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1609 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
1610 STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data)
1612 STACK_OF(X509) *certs = NULL;
1616 int i, client_cert_idx;
1618 PCCERT_CONTEXT cert = NULL, excert = NULL;
1621 ctx = ENGINE_get_ex_data(e, capi_idx);
1626 storename = ctx->ssl_client_store;
1630 hstore = capi_open_store(ctx, storename);
1633 /* Enumerate all certificates collect any matches */
1636 cert = CertEnumCertificatesInStore(hstore, cert);
1639 p = cert->pbCertEncoded;
1640 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1643 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1646 if (cert_issuer_match(ca_dn, x)
1647 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0))
1649 key = capi_get_cert_key(ctx, cert);
1655 /* Match found: attach extra data to it so
1656 * we can retrieve the key later.
1658 excert = CertDuplicateCertificateContext(cert);
1659 key->pcert = excert;
1660 X509_set_ex_data(x, cert_capi_idx, key);
1663 certs = sk_X509_new_null();
1665 sk_X509_push(certs, x);
1673 CertFreeCertificateContext(cert);
1675 CertCloseStore(hstore, 0);
1681 /* Select the appropriate certificate */
1683 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1685 /* Set the selected certificate and free the rest */
1687 for(i = 0; i < sk_X509_num(certs); i++)
1689 x = sk_X509_value(certs, i);
1690 if (i == client_cert_idx)
1694 key = X509_get_ex_data(x, cert_capi_idx);
1700 sk_X509_free(certs);
1705 /* Setup key for selected certificate */
1707 key = X509_get_ex_data(*pcert, cert_capi_idx);
1708 *pkey = capi_get_pkey(e, key);
1709 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1716 /* Simple client cert selection function: always select first */
1718 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1723 #ifdef OPENSSL_CAPIENG_DIALOG
1725 /* More complex cert selection function, using standard function
1726 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1729 /* Definitions which are in cryptuiapi.h but this is not present in older
1730 * versions of headers.
1733 #ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1734 #define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1735 #define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1738 #define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1739 #define dlg_prompt L"Select a certificate to use for authentication"
1740 #define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1741 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1743 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1747 PCCERT_CONTEXT cert;
1752 if (sk_X509_num(certs) == 1)
1754 ctx = ENGINE_get_ex_data(e, capi_idx);
1755 /* Create an in memory store of certificates */
1756 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1757 CERT_STORE_CREATE_NEW_FLAG, NULL);
1760 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1761 capi_addlasterror();
1764 /* Add all certificates to store */
1765 for(i = 0; i < sk_X509_num(certs); i++)
1767 x = sk_X509_value(certs, i);
1768 key = X509_get_ex_data(x, cert_capi_idx);
1770 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1771 CERT_STORE_ADD_NEW, NULL))
1773 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1774 capi_addlasterror();
1779 hwnd = GetForegroundWindow();
1781 hwnd = GetActiveWindow();
1782 if (!hwnd && ctx->getconswindow)
1783 hwnd = ctx->getconswindow();
1784 /* Call dialog to select one */
1785 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1786 dlg_columns, 0, NULL);
1788 /* Find matching cert from list */
1791 for(i = 0; i < sk_X509_num(certs); i++)
1793 x = sk_X509_value(certs, i);
1794 key = X509_get_ex_data(x, cert_capi_idx);
1795 if (CertCompareCertificate(
1796 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
1798 key->pcert->pCertInfo))
1808 CertCloseStore(dstore, 0);
1814 #else /* !__COMPILE_CAPIENG */
1815 #include <openssl/engine.h>
1816 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
1818 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
1820 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; }
1821 IMPLEMENT_DYNAMIC_CHECK_FN()
1823 void ENGINE_load_capi(void){}