2 * Copyright 2008-2020 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 /* We need to use some deprecated APIs */
11 #define OPENSSL_SUPPRESS_DEPRECATED
15 # define _WIN32_WINNT 0x0400
18 # include <wincrypt.h>
25 # define alloca _alloca
28 # include <openssl/crypto.h>
30 # ifndef OPENSSL_NO_CAPIENG
32 # include <openssl/buffer.h>
33 # include <openssl/bn.h>
34 # include <openssl/rsa.h>
35 # include <openssl/dsa.h>
38 * This module uses several "new" interfaces, among which is
39 * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
40 * one of possible values you can pass to function in question. By
41 * checking if it's defined we can see if wincrypt.h and accompanying
42 * crypt32.lib are in shape. The native MingW32 headers up to and
43 * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
44 * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
45 * so we check for these too and avoid compiling.
46 * Yes, it's rather "weak" test and if compilation fails,
47 * then re-configure with -DOPENSSL_NO_CAPIENG.
49 # if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
50 defined(CERT_STORE_PROV_SYSTEM_A) && \
51 defined(CERT_STORE_READONLY_FLAG)
52 # define __COMPILE_CAPIENG
53 # endif /* CERT_KEY_PROV_INFO_PROP_ID */
54 # endif /* OPENSSL_NO_CAPIENG */
57 #ifdef __COMPILE_CAPIENG
59 # undef X509_EXTENSIONS
61 /* Definitions which may be missing from earlier version of headers */
62 # ifndef CERT_STORE_OPEN_EXISTING_FLAG
63 # define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
66 # ifndef CERT_STORE_CREATE_NEW_FLAG
67 # define CERT_STORE_CREATE_NEW_FLAG 0x00002000
70 # ifndef CERT_SYSTEM_STORE_CURRENT_USER
71 # define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
74 # ifndef ALG_SID_SHA_256
75 # define ALG_SID_SHA_256 12
77 # ifndef ALG_SID_SHA_384
78 # define ALG_SID_SHA_384 13
80 # ifndef ALG_SID_SHA_512
81 # define ALG_SID_SHA_512 14
85 # define CALG_SHA_256 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_256)
88 # define CALG_SHA_384 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_384)
91 # define CALG_SHA_512 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_512)
95 # define PROV_RSA_AES 24
98 # include <openssl/engine.h>
99 # include <openssl/pem.h>
100 # include <openssl/x509v3.h>
102 # include "e_capi_err.h"
103 # include "e_capi_err.c"
105 static const char *engine_capi_id = "capi";
106 static const char *engine_capi_name = "CryptoAPI ENGINE";
108 typedef struct CAPI_CTX_st CAPI_CTX;
109 typedef struct CAPI_KEY_st CAPI_KEY;
111 static void capi_addlasterror(void);
112 static void capi_adderror(DWORD err);
114 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
116 static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
117 static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
118 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
119 void capi_free_key(CAPI_KEY *key);
121 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id,
124 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
126 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
127 UI_METHOD *ui_method, void *callback_data);
128 static int capi_rsa_sign(int dtype, const unsigned char *m,
129 unsigned int m_len, unsigned char *sigret,
130 unsigned int *siglen, const RSA *rsa);
131 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
132 unsigned char *to, RSA *rsa, int padding);
133 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
134 unsigned char *to, RSA *rsa, int padding);
135 static int capi_rsa_free(RSA *rsa);
137 # ifndef OPENSSL_NO_DSA
138 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
140 static int capi_dsa_free(DSA *dsa);
143 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
144 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
145 EVP_PKEY **pkey, STACK_OF(X509) **pother,
146 UI_METHOD *ui_method,
147 void *callback_data);
149 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
150 # ifdef OPENSSL_CAPIENG_DIALOG
151 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
154 void engine_load_capi_int(void);
156 typedef PCCERT_CONTEXT(WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,
157 LPCWSTR, DWORD, DWORD, void *);
158 typedef HWND(WINAPI *GETCONSWIN)(void);
161 * This structure contains CAPI ENGINE specific data: it contains various
162 * global options and affects how other functions behave.
165 # define CAPI_DBG_TRACE 2
166 # define CAPI_DBG_ERROR 1
171 /* Parameters to use for container lookup */
175 /* Certificate store name to use */
177 LPSTR ssl_client_store;
178 /* System store flags */
180 /* Lookup string meanings in load_private_key */
181 # define CAPI_LU_SUBSTR 1 /* Substring of subject: uses "storename" */
182 # define CAPI_LU_FNAME 2 /* Friendly name: uses storename */
183 # define CAPI_LU_CONTNAME 3 /* Container name: uses cspname, keytype */
185 /* Info to dump with dumpcerts option */
186 # define CAPI_DMP_SUMMARY 0x1 /* Issuer and serial name strings */
187 # define CAPI_DMP_FNAME 0x2 /* Friendly name */
188 # define CAPI_DMP_FULL 0x4 /* Full X509_print dump */
189 # define CAPI_DMP_PEM 0x8 /* Dump PEM format certificate */
190 # define CAPI_DMP_PSKEY 0x10 /* Dump pseudo key (if possible) */
191 # define CAPI_DMP_PKEYINFO 0x20 /* Dump key info (if possible) */
193 int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
194 CERTDLG certselectdlg;
195 GETCONSWIN getconswindow;
198 static CAPI_CTX *capi_ctx_new(void);
199 static void capi_ctx_free(CAPI_CTX *ctx);
200 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type,
202 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
204 # define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
205 # define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
206 # define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
207 # define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
208 # define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
209 # define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
210 # define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
211 # define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
212 # define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
213 # define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
214 # define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
215 # define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
216 # define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
217 # define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
219 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
220 {CAPI_CMD_LIST_CERTS,
222 "List all certificates in store",
223 ENGINE_CMD_FLAG_NO_INPUT},
224 {CAPI_CMD_LOOKUP_CERT,
226 "Lookup and output certificates",
227 ENGINE_CMD_FLAG_STRING},
228 {CAPI_CMD_DEBUG_LEVEL,
230 "debug level (1=errors, 2=trace)",
231 ENGINE_CMD_FLAG_NUMERIC},
232 {CAPI_CMD_DEBUG_FILE,
234 "debugging filename)",
235 ENGINE_CMD_FLAG_STRING},
238 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
239 ENGINE_CMD_FLAG_NUMERIC},
243 ENGINE_CMD_FLAG_NO_INPUT},
244 {CAPI_CMD_SET_CSP_IDX,
247 ENGINE_CMD_FLAG_NUMERIC},
248 {CAPI_CMD_SET_CSP_NAME,
250 "Set CSP name, (default CSP used if not specified)",
251 ENGINE_CMD_FLAG_STRING},
252 {CAPI_CMD_SET_CSP_TYPE,
254 "Set CSP type, (default RSA_PROV_FULL)",
255 ENGINE_CMD_FLAG_NUMERIC},
256 {CAPI_CMD_LIST_CONTAINERS,
258 "list container names",
259 ENGINE_CMD_FLAG_NO_INPUT},
260 {CAPI_CMD_LIST_OPTIONS,
262 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
263 "32=private key info)",
264 ENGINE_CMD_FLAG_NUMERIC},
265 {CAPI_CMD_LOOKUP_METHOD,
267 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
268 ENGINE_CMD_FLAG_NUMERIC},
269 {CAPI_CMD_STORE_NAME,
271 "certificate store name, default \"MY\"",
272 ENGINE_CMD_FLAG_STRING},
273 {CAPI_CMD_STORE_FLAGS,
275 "Certificate store flags: 1 = system store",
276 ENGINE_CMD_FLAG_NUMERIC},
281 static int capi_idx = -1;
282 static int rsa_capi_idx = -1;
283 static int dsa_capi_idx = -1;
284 static int cert_capi_idx = -1;
286 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
292 if (capi_idx == -1) {
293 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
296 ctx = ENGINE_get_ex_data(e, capi_idx);
297 out = BIO_new_fp(stdout, BIO_NOCLOSE);
299 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_FILE_OPEN_ERROR);
303 case CAPI_CMD_LIST_CSPS:
304 ret = capi_list_providers(ctx, out);
307 case CAPI_CMD_LIST_CERTS:
308 ret = capi_list_certs(ctx, out, NULL);
311 case CAPI_CMD_LOOKUP_CERT:
312 ret = capi_list_certs(ctx, out, p);
315 case CAPI_CMD_LIST_CONTAINERS:
316 ret = capi_list_containers(ctx, out);
319 case CAPI_CMD_STORE_NAME:
320 tmpstr = OPENSSL_strdup(p);
321 if (tmpstr != NULL) {
322 OPENSSL_free(ctx->storename);
323 ctx->storename = tmpstr;
324 CAPI_trace(ctx, "Setting store name to %s\n", p);
326 CAPIerr(CAPI_F_CAPI_CTRL, ERR_R_MALLOC_FAILURE);
331 case CAPI_CMD_STORE_FLAGS:
333 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
334 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
336 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
337 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
339 CAPI_trace(ctx, "Setting flags to %d\n", i);
342 case CAPI_CMD_DEBUG_LEVEL:
343 ctx->debug_level = (int)i;
344 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
347 case CAPI_CMD_DEBUG_FILE:
348 tmpstr = OPENSSL_strdup(p);
349 if (tmpstr != NULL) {
350 ctx->debug_file = tmpstr;
351 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
353 CAPIerr(CAPI_F_CAPI_CTRL, ERR_R_MALLOC_FAILURE);
358 case CAPI_CMD_KEYTYPE:
360 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
363 case CAPI_CMD_SET_CSP_IDX:
364 ret = capi_ctx_set_provname_idx(ctx, i);
367 case CAPI_CMD_LIST_OPTIONS:
371 case CAPI_CMD_LOOKUP_METHOD:
372 if (i < 1 || i > 3) {
373 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
377 ctx->lookup_method = i;
380 case CAPI_CMD_SET_CSP_NAME:
381 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
384 case CAPI_CMD_SET_CSP_TYPE:
389 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
398 static RSA_METHOD *capi_rsa_method = NULL;
399 # ifndef OPENSSL_NO_DSA
400 static DSA_METHOD *capi_dsa_method = NULL;
403 static int use_aes_csp = 0;
404 static const WCHAR rsa_aes_cspname[] =
405 L"Microsoft Enhanced RSA and AES Cryptographic Provider";
406 static const WCHAR rsa_enh_cspname[] =
407 L"Microsoft Enhanced Cryptographic Provider v1.0";
409 static int capi_init(ENGINE *e)
412 const RSA_METHOD *ossl_rsa_meth;
413 # ifndef OPENSSL_NO_DSA
414 const DSA_METHOD *ossl_dsa_meth;
419 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
423 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
425 /* Setup RSA_METHOD */
426 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
427 ossl_rsa_meth = RSA_PKCS1_OpenSSL();
428 if ( !RSA_meth_set_pub_enc(capi_rsa_method,
429 RSA_meth_get_pub_enc(ossl_rsa_meth))
430 || !RSA_meth_set_pub_dec(capi_rsa_method,
431 RSA_meth_get_pub_dec(ossl_rsa_meth))
432 || !RSA_meth_set_priv_enc(capi_rsa_method, capi_rsa_priv_enc)
433 || !RSA_meth_set_priv_dec(capi_rsa_method, capi_rsa_priv_dec)
434 || !RSA_meth_set_mod_exp(capi_rsa_method,
435 RSA_meth_get_mod_exp(ossl_rsa_meth))
436 || !RSA_meth_set_bn_mod_exp(capi_rsa_method,
437 RSA_meth_get_bn_mod_exp(ossl_rsa_meth))
438 || !RSA_meth_set_finish(capi_rsa_method, capi_rsa_free)
439 || !RSA_meth_set_sign(capi_rsa_method, capi_rsa_sign)) {
443 # ifndef OPENSSL_NO_DSA
444 /* Setup DSA Method */
445 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
446 ossl_dsa_meth = DSA_OpenSSL();
447 if ( !DSA_meth_set_sign(capi_dsa_method, capi_dsa_do_sign)
448 || !DSA_meth_set_verify(capi_dsa_method,
449 DSA_meth_get_verify(ossl_dsa_meth))
450 || !DSA_meth_set_finish(capi_dsa_method, capi_dsa_free)
451 || !DSA_meth_set_mod_exp(capi_dsa_method,
452 DSA_meth_get_mod_exp(ossl_dsa_meth))
453 || !DSA_meth_set_bn_mod_exp(capi_dsa_method,
454 DSA_meth_get_bn_mod_exp(ossl_dsa_meth))) {
460 ctx = capi_ctx_new();
464 ENGINE_set_ex_data(e, capi_idx, ctx);
466 # ifdef OPENSSL_CAPIENG_DIALOG
468 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
469 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
472 (CERTDLG) GetProcAddress(cryptui,
473 "CryptUIDlgSelectCertificateFromStore");
476 (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow");
477 if (cryptui && !OPENSSL_isservice())
478 ctx->client_cert_select = cert_select_dialog;
482 /* See if there is RSA+AES CSP */
483 if (CryptAcquireContextW(&hprov, NULL, rsa_aes_cspname, PROV_RSA_AES,
484 CRYPT_VERIFYCONTEXT)) {
486 CryptReleaseContext(hprov, 0);
492 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
498 static int capi_destroy(ENGINE *e)
500 RSA_meth_free(capi_rsa_method);
501 capi_rsa_method = NULL;
502 # ifndef OPENSSL_NO_DSA
503 DSA_meth_free(capi_dsa_method);
504 capi_dsa_method = NULL;
506 ERR_unload_CAPI_strings();
510 static int capi_finish(ENGINE *e)
513 ctx = ENGINE_get_ex_data(e, capi_idx);
515 ENGINE_set_ex_data(e, capi_idx, NULL);
520 * CryptoAPI key application data. This contains a handle to the private key
521 * container (for sign operations) and a handle to the key (for decrypt
526 /* Associated certificate context (if any) */
527 PCCERT_CONTEXT pcert;
533 static int bind_capi(ENGINE *e)
535 capi_rsa_method = RSA_meth_new("CryptoAPI RSA method", 0);
536 if (capi_rsa_method == NULL)
538 # ifndef OPENSSL_NO_DSA
539 capi_dsa_method = DSA_meth_new("CryptoAPI DSA method", 0);
540 if (capi_dsa_method == NULL)
543 if (!ENGINE_set_id(e, engine_capi_id)
544 || !ENGINE_set_name(e, engine_capi_name)
545 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
546 || !ENGINE_set_init_function(e, capi_init)
547 || !ENGINE_set_finish_function(e, capi_finish)
548 || !ENGINE_set_destroy_function(e, capi_destroy)
549 || !ENGINE_set_RSA(e, capi_rsa_method)
550 # ifndef OPENSSL_NO_DSA
551 || !ENGINE_set_DSA(e, capi_dsa_method)
553 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
554 || !ENGINE_set_load_ssl_client_cert_function(e,
555 capi_load_ssl_client_cert)
556 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
557 || !ENGINE_set_ctrl_function(e, capi_ctrl))
559 ERR_load_CAPI_strings();
563 RSA_meth_free(capi_rsa_method);
564 capi_rsa_method = NULL;
565 # ifndef OPENSSL_NO_DSA
566 DSA_meth_free(capi_dsa_method);
567 capi_dsa_method = NULL;
572 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
573 static int bind_helper(ENGINE *e, const char *id)
575 if (id && (strcmp(id, engine_capi_id) != 0))
582 IMPLEMENT_DYNAMIC_CHECK_FN()
583 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
585 static ENGINE *engine_capi(void)
587 ENGINE *ret = ENGINE_new();
590 if (!bind_capi(ret)) {
597 void engine_load_capi_int(void)
599 /* Copied from eng_[openssl|dyn].c */
600 ENGINE *toadd = engine_capi();
606 * If the "add" worked, it gets a structural reference. So either way, we
607 * release our just-created reference.
611 * If the "add" didn't work, it was probably a conflict because it was
612 * already added (eg. someone calling ENGINE_load_blah then calling
613 * ENGINE_load_builtin_engines() perhaps).
619 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
623 * Reverse buffer in place: since this is a keyblob structure that will
624 * be freed up after conversion anyway it doesn't matter if we change
627 for (i = 0; i < binlen / 2; i++) {
630 bin[i] = bin[binlen - i - 1];
631 bin[binlen - i - 1] = c;
634 if (!BN_bin2bn(bin, binlen, bn))
639 /* Given a CAPI_KEY get an EVP_PKEY structure */
641 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
643 unsigned char *pubkey = NULL;
648 EVP_PKEY *ret = NULL;
649 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
650 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
655 pubkey = OPENSSL_malloc(len);
660 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
661 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
666 bh = (BLOBHEADER *) pubkey;
667 if (bh->bType != PUBLICKEYBLOB) {
668 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
671 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) {
674 BIGNUM *e = NULL, *n = NULL;
675 unsigned char *rsa_modulus;
676 rp = (RSAPUBKEY *) (bh + 1);
677 if (rp->magic != 0x31415352) {
679 BIO_snprintf(magstr, 10, "%lx", rp->magic);
680 CAPIerr(CAPI_F_CAPI_GET_PKEY,
681 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
682 ERR_add_error_data(2, "magic=0x", magstr);
685 rsa_modulus = (unsigned char *)(rp + 1);
686 rkey = RSA_new_method(eng);
693 if (e == NULL || n == NULL) {
699 RSA_set0_key(rkey, n, e, NULL);
701 if (!BN_set_word(e, rp->pubexp))
704 rsa_modlen = rp->bitlen / 8;
705 if (!lend_tobn(n, rsa_modulus, rsa_modlen))
708 RSA_set_ex_data(rkey, rsa_capi_idx, key);
710 if ((ret = EVP_PKEY_new()) == NULL)
713 EVP_PKEY_assign_RSA(ret, rkey);
716 # ifndef OPENSSL_NO_DSA
717 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
721 BIGNUM *p, *q, *g, *pub_key;
722 dp = (DSSPUBKEY *) (bh + 1);
723 if (dp->magic != 0x31535344) {
725 BIO_snprintf(magstr, 10, "%lx", dp->magic);
726 CAPIerr(CAPI_F_CAPI_GET_PKEY,
727 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
728 ERR_add_error_data(2, "magic=0x", magstr);
731 dsa_plen = dp->bitlen / 8;
732 btmp = (unsigned char *)(dp + 1);
733 dkey = DSA_new_method(eng);
740 if (p == NULL || q == NULL || g == NULL || pub_key == NULL) {
747 DSA_set0_pqg(dkey, p, q, g);
748 DSA_set0_key(dkey, pub_key, NULL);
749 if (!lend_tobn(p, btmp, dsa_plen))
752 if (!lend_tobn(q, btmp, 20))
755 if (!lend_tobn(g, btmp, dsa_plen))
758 if (!lend_tobn(pub_key, btmp, dsa_plen))
762 DSA_set_ex_data(dkey, dsa_capi_idx, key);
764 if ((ret = EVP_PKEY_new()) == NULL)
767 EVP_PKEY_assign_DSA(ret, dkey);
772 BIO_snprintf(algstr, 10, "%ux", bh->aiKeyAlg);
773 CAPIerr(CAPI_F_CAPI_GET_PKEY,
774 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
775 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
780 OPENSSL_free(pubkey);
783 # ifndef OPENSSL_NO_DSA
791 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
796 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
797 UI_METHOD *ui_method, void *callback_data)
802 ctx = ENGINE_get_ex_data(eng, capi_idx);
805 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
809 key = capi_find_key(ctx, key_id);
814 ret = capi_get_pkey(eng, key);
822 /* CryptoAPI RSA operations */
824 int capi_rsa_priv_enc(int flen, const unsigned char *from,
825 unsigned char *to, RSA *rsa, int padding)
827 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
831 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
832 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
842 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
844 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
846 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
848 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
851 /* Convert the signature type to a CryptoAPI algorithm ID */
874 alg = CALG_SSL3_SHAMD5;
879 BIO_snprintf(algstr, 10, "%x", dtype);
880 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
881 ERR_add_error_data(2, "NID=0x", algstr);
886 /* Create the hash object */
887 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
888 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
892 /* Set the hash value to the value passed */
894 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
895 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
900 /* Finally sign it */
901 slen = RSA_size(rsa);
902 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
903 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
908 /* Inplace byte reversal of signature */
909 for (i = 0; i < slen / 2; i++) {
912 sigret[i] = sigret[slen - i - 1];
913 sigret[slen - i - 1] = c;
921 CryptDestroyHash(hash);
926 int capi_rsa_priv_dec(int flen, const unsigned char *from,
927 unsigned char *to, RSA *rsa, int padding)
930 unsigned char *tmpbuf;
939 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
941 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
943 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
945 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
950 case RSA_PKCS1_PADDING:
953 #ifdef CRYPT_DECRYPT_RSA_NO_PADDING_CHECK
955 flags = CRYPT_DECRYPT_RSA_NO_PADDING_CHECK;
961 BIO_snprintf(errstr, 10, "%d", padding);
962 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
963 ERR_add_error_data(2, "padding=", errstr);
968 /* Create temp reverse order version of input */
969 if ((tmpbuf = OPENSSL_malloc(flen)) == NULL) {
970 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
973 for (i = 0; i < flen; i++)
974 tmpbuf[flen - i - 1] = from[i];
976 /* Finally decrypt it */
978 if (!CryptDecrypt(capi_key->key, 0, TRUE, flags, tmpbuf, &dlen)) {
979 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
981 OPENSSL_cleanse(tmpbuf, dlen);
982 OPENSSL_free(tmpbuf);
985 memcpy(to, tmpbuf, (flen = (int)dlen));
987 OPENSSL_cleanse(tmpbuf, flen);
988 OPENSSL_free(tmpbuf);
993 static int capi_rsa_free(RSA *rsa)
996 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
997 capi_free_key(capi_key);
998 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
1002 # ifndef OPENSSL_NO_DSA
1003 /* CryptoAPI DSA operations */
1005 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
1010 DSA_SIG *ret = NULL;
1013 unsigned char csigbuf[40];
1015 ctx = ENGINE_get_ex_data(DSA_get0_engine(dsa), capi_idx);
1017 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
1019 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1022 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
1027 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
1031 /* Create the hash object */
1032 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
1033 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
1034 capi_addlasterror();
1038 /* Set the hash value to the value passed */
1039 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
1040 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
1041 capi_addlasterror();
1045 /* Finally sign it */
1046 slen = sizeof(csigbuf);
1047 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
1048 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
1049 capi_addlasterror();
1052 BIGNUM *r = BN_new(), *s = BN_new();
1054 if (r == NULL || s == NULL
1055 || !lend_tobn(r, csigbuf, 20)
1056 || !lend_tobn(s, csigbuf + 20, 20)
1057 || (ret = DSA_SIG_new()) == NULL) {
1058 BN_free(r); /* BN_free checks for BIGNUM * being NULL */
1062 DSA_SIG_set0(ret, r, s);
1068 OPENSSL_cleanse(csigbuf, 40);
1069 CryptDestroyHash(hash);
1073 static int capi_dsa_free(DSA *dsa)
1076 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1077 capi_free_key(capi_key);
1078 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1083 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format,
1088 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1090 out = BIO_new_file(ctx->debug_file, "a+");
1092 CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR);
1095 BIO_vprintf(out, format, argptr);
1099 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
1102 va_start(args, format);
1103 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1107 static void capi_addlasterror(void)
1109 capi_adderror(GetLastError());
1112 static void capi_adderror(DWORD err)
1115 BIO_snprintf(errstr, 10, "%lX", err);
1116 ERR_add_error_data(2, "Error code= 0x", errstr);
1119 static char *wide_to_asc(LPCWSTR wstr)
1126 len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */
1127 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1129 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1132 str = OPENSSL_malloc(sz);
1134 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1137 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1139 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1145 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype,
1150 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1151 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) {
1152 err = GetLastError();
1153 if (err == ERROR_NO_MORE_ITEMS)
1155 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1159 name = OPENSSL_malloc(len);
1161 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, ERR_R_MALLOC_FAILURE);
1164 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) {
1165 err = GetLastError();
1167 if (err == ERROR_NO_MORE_ITEMS)
1169 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1173 if (sizeof(TCHAR) != sizeof(char)) {
1174 *pname = wide_to_asc((WCHAR *)name);
1179 *pname = (char *)name;
1181 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname,
1187 static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
1191 LPSTR provname = NULL;
1192 CAPI_trace(ctx, "capi_list_providers\n");
1193 BIO_printf(out, "Available CSPs:\n");
1194 for (idx = 0;; idx++) {
1195 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1200 BIO_printf(out, "%lu. %s, type %lu\n", idx, provname, ptype);
1201 OPENSSL_free(provname);
1206 static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
1210 DWORD err, idx, flags, buflen = 0, clen;
1212 LPWSTR cspname = NULL;
1214 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1216 if (ctx->cspname != NULL) {
1217 if ((clen = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1219 cspname = alloca(clen * sizeof(WCHAR));
1220 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname,
1223 if (cspname == NULL) {
1224 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1225 capi_addlasterror();
1229 if (!CryptAcquireContextW(&hprov, NULL, cspname, ctx->csptype,
1230 CRYPT_VERIFYCONTEXT)) {
1231 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1232 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1233 capi_addlasterror();
1236 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen,
1238 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1239 capi_addlasterror();
1240 CryptReleaseContext(hprov, 0);
1243 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1246 cname = OPENSSL_malloc(buflen);
1247 if (cname == NULL) {
1248 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1252 for (idx = 0;; idx++) {
1257 flags = CRYPT_FIRST;
1260 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, (BYTE *)cname,
1262 err = GetLastError();
1263 if (err == ERROR_NO_MORE_ITEMS)
1265 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1269 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1270 cname, clen, idx, flags);
1271 if (!cname[0] && (clen == buflen)) {
1272 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1275 BIO_printf(out, "%lu. %s\n", idx, cname);
1282 OPENSSL_free(cname);
1283 CryptReleaseContext(hprov, 0);
1288 static CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx,
1289 PCCERT_CONTEXT cert)
1292 CRYPT_KEY_PROV_INFO *pinfo;
1294 if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID,
1297 pinfo = OPENSSL_malloc(len);
1298 if (pinfo == NULL) {
1299 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1302 if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID,
1304 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1305 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1306 capi_addlasterror();
1307 OPENSSL_free(pinfo);
1313 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out,
1314 CRYPT_KEY_PROV_INFO *pinfo)
1316 char *provname = NULL, *contname = NULL;
1318 if (pinfo == NULL) {
1319 BIO_printf(out, " No Private Key\n");
1322 provname = wide_to_asc(pinfo->pwszProvName);
1323 contname = wide_to_asc(pinfo->pwszContainerName);
1324 if (provname == NULL || contname == NULL)
1327 BIO_printf(out, " Private Key Info:\n");
1328 BIO_printf(out, " Provider Name: %s, Provider Type %lu\n", provname,
1330 BIO_printf(out, " Container Name: %s, Key Type %lu\n", contname,
1333 OPENSSL_free(provname);
1334 OPENSSL_free(contname);
1337 static char *capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1342 CAPI_trace(ctx, "capi_cert_get_fname\n");
1343 if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID,
1346 wfname = OPENSSL_malloc(dlen);
1349 if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID,
1351 char *fname = wide_to_asc(wfname);
1352 OPENSSL_free(wfname);
1355 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1356 capi_addlasterror();
1358 OPENSSL_free(wfname);
1362 static void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1365 const unsigned char *p;
1366 unsigned long flags = ctx->dump_flags;
1367 if (flags & CAPI_DMP_FNAME) {
1369 fname = capi_cert_get_fname(ctx, cert);
1371 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1372 OPENSSL_free(fname);
1374 BIO_printf(out, " <No Friendly Name>\n");
1378 p = cert->pbCertEncoded;
1379 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1381 BIO_printf(out, " <Can't parse certificate>\n");
1382 if (flags & CAPI_DMP_SUMMARY) {
1383 BIO_printf(out, " Subject: ");
1384 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1385 BIO_printf(out, "\n Issuer: ");
1386 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1387 BIO_printf(out, "\n");
1389 if (flags & CAPI_DMP_FULL)
1390 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1392 if (flags & CAPI_DMP_PKEYINFO) {
1393 CRYPT_KEY_PROV_INFO *pinfo;
1394 pinfo = capi_get_prov_info(ctx, cert);
1395 capi_dump_prov_info(ctx, out, pinfo);
1396 OPENSSL_free(pinfo);
1399 if (flags & CAPI_DMP_PEM)
1400 PEM_write_bio_X509(out, x);
1404 static HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1409 storename = ctx->storename;
1412 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1414 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1415 ctx->store_flags, storename);
1417 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1418 capi_addlasterror();
1423 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1429 PCCERT_CONTEXT cert = NULL;
1431 storename = ctx->storename;
1434 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1436 hstore = capi_open_store(ctx, storename);
1440 cert = capi_find_cert(ctx, id, hstore);
1445 capi_dump_cert(ctx, out, cert);
1446 CertFreeCertificateContext(cert);
1448 for (idx = 0;; idx++) {
1449 cert = CertEnumCertificatesInStore(hstore, cert);
1452 BIO_printf(out, "Certificate %d\n", idx);
1453 capi_dump_cert(ctx, out, cert);
1457 CertCloseStore(hstore, 0);
1461 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id,
1464 PCCERT_CONTEXT cert = NULL;
1467 switch (ctx->lookup_method) {
1468 case CAPI_LU_SUBSTR:
1469 return CertFindCertificateInStore(hstore, X509_ASN_ENCODING, 0,
1470 CERT_FIND_SUBJECT_STR_A, id, NULL);
1473 cert = CertEnumCertificatesInStore(hstore, cert);
1476 fname = capi_cert_get_fname(ctx, cert);
1478 if (strcmp(fname, id))
1482 OPENSSL_free(fname);
1492 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const WCHAR *contname,
1493 const WCHAR *provname, DWORD ptype,
1497 CAPI_KEY *key = OPENSSL_malloc(sizeof(*key));
1501 /* If PROV_RSA_AES supported use it instead */
1502 if (ptype == PROV_RSA_FULL && use_aes_csp &&
1503 wcscmp(provname, rsa_enh_cspname) == 0) {
1504 provname = rsa_aes_cspname;
1505 ptype = PROV_RSA_AES;
1507 if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) {
1509 * above 'if' is [complementary] copy from CAPI_trace and serves
1510 * as optimization to minimize [below] malloc-ations
1512 char *_contname = wide_to_asc(contname);
1513 char *_provname = wide_to_asc(provname);
1515 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1516 _contname, _provname, ptype);
1517 OPENSSL_free(_provname);
1518 OPENSSL_free(_contname);
1520 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1521 dwFlags = CRYPT_MACHINE_KEYSET;
1522 if (!CryptAcquireContextW(&key->hprov, contname, provname, ptype,
1524 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1525 capi_addlasterror();
1528 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1529 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1530 capi_addlasterror();
1531 CryptReleaseContext(key->hprov, 0);
1534 key->keyspec = keyspec;
1543 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1545 CAPI_KEY *key = NULL;
1546 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1548 pinfo = capi_get_prov_info(ctx, cert);
1551 key = capi_get_key(ctx, pinfo->pwszContainerName, pinfo->pwszProvName,
1552 pinfo->dwProvType, pinfo->dwKeySpec);
1554 OPENSSL_free(pinfo);
1558 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1560 PCCERT_CONTEXT cert;
1562 CAPI_KEY *key = NULL;
1564 switch (ctx->lookup_method) {
1565 case CAPI_LU_SUBSTR:
1567 hstore = capi_open_store(ctx, NULL);
1570 cert = capi_find_cert(ctx, id, hstore);
1572 key = capi_get_cert_key(ctx, cert);
1573 CertFreeCertificateContext(cert);
1575 CertCloseStore(hstore, 0);
1578 case CAPI_LU_CONTNAME:
1580 WCHAR *contname, *provname;
1583 if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) &&
1584 (contname = alloca(len * sizeof(WCHAR)),
1585 MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) &&
1586 (len = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1588 (provname = alloca(len * sizeof(WCHAR)),
1589 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1591 key = capi_get_key(ctx, contname, provname,
1592 ctx->csptype, ctx->keytype);
1600 void capi_free_key(CAPI_KEY *key)
1604 CryptDestroyKey(key->key);
1605 CryptReleaseContext(key->hprov, 0);
1607 CertFreeCertificateContext(key->pcert);
1611 /* Initialize a CAPI_CTX structure */
1613 static CAPI_CTX *capi_ctx_new(void)
1615 CAPI_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
1618 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1621 ctx->csptype = PROV_RSA_FULL;
1622 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1623 ctx->keytype = AT_KEYEXCHANGE;
1624 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1625 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1626 ctx->lookup_method = CAPI_LU_SUBSTR;
1627 ctx->client_cert_select = cert_select_simple;
1631 static void capi_ctx_free(CAPI_CTX *ctx)
1633 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1636 OPENSSL_free(ctx->cspname);
1637 OPENSSL_free(ctx->debug_file);
1638 OPENSSL_free(ctx->storename);
1639 OPENSSL_free(ctx->ssl_client_store);
1643 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type,
1648 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1654 if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) {
1655 name = alloca(len * sizeof(WCHAR));
1656 MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len);
1658 if (name == NULL || !CryptAcquireContextW(&hprov, NULL, name, type,
1659 CRYPT_VERIFYCONTEXT)) {
1660 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1661 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1662 capi_addlasterror();
1665 CryptReleaseContext(hprov, 0);
1667 tmpcspname = OPENSSL_strdup(pname);
1668 if (tmpcspname == NULL) {
1669 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, ERR_R_MALLOC_FAILURE);
1672 OPENSSL_free(ctx->cspname);
1673 ctx->cspname = tmpcspname;
1674 ctx->csptype = type;
1678 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1683 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1685 res = capi_ctx_set_provname(ctx, pname, type, 0);
1686 OPENSSL_free(pname);
1690 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1694 /* Special case: empty list: match anything */
1695 if (sk_X509_NAME_num(ca_dn) <= 0)
1697 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1698 nm = sk_X509_NAME_value(ca_dn, i);
1699 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1705 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1706 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1707 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1708 UI_METHOD *ui_method,
1709 void *callback_data)
1711 STACK_OF(X509) *certs = NULL;
1714 const unsigned char *p;
1715 int i, client_cert_idx;
1717 PCCERT_CONTEXT cert = NULL, excert = NULL;
1720 ctx = ENGINE_get_ex_data(e, capi_idx);
1725 storename = ctx->ssl_client_store;
1729 hstore = capi_open_store(ctx, storename);
1732 /* Enumerate all certificates collect any matches */
1734 cert = CertEnumCertificatesInStore(hstore, cert);
1737 p = cert->pbCertEncoded;
1738 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1740 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1743 if (cert_issuer_match(ca_dn, x)
1744 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1745 key = capi_get_cert_key(ctx, cert);
1751 * Match found: attach extra data to it so we can retrieve the
1754 excert = CertDuplicateCertificateContext(cert);
1755 key->pcert = excert;
1756 X509_set_ex_data(x, cert_capi_idx, key);
1759 certs = sk_X509_new_null();
1761 sk_X509_push(certs, x);
1768 CertFreeCertificateContext(cert);
1770 CertCloseStore(hstore, 0);
1775 /* Select the appropriate certificate */
1777 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1779 /* Set the selected certificate and free the rest */
1781 for (i = 0; i < sk_X509_num(certs); i++) {
1782 x = sk_X509_value(certs, i);
1783 if (i == client_cert_idx)
1786 key = X509_get_ex_data(x, cert_capi_idx);
1792 sk_X509_free(certs);
1797 /* Setup key for selected certificate */
1799 key = X509_get_ex_data(*pcert, cert_capi_idx);
1800 *pkey = capi_get_pkey(e, key);
1801 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1807 /* Simple client cert selection function: always select first */
1809 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1814 # ifdef OPENSSL_CAPIENG_DIALOG
1817 * More complex cert selection function, using standard function
1818 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1822 * Definitions which are in cryptuiapi.h but this is not present in older
1823 * versions of headers.
1826 # ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1827 # define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1828 # define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1831 # define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1832 # define dlg_prompt L"Select a certificate to use for authentication"
1833 # define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1834 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1836 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1840 PCCERT_CONTEXT cert;
1845 if (sk_X509_num(certs) == 1)
1847 ctx = ENGINE_get_ex_data(e, capi_idx);
1848 /* Create an in memory store of certificates */
1849 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1850 CERT_STORE_CREATE_NEW_FLAG, NULL);
1852 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1853 capi_addlasterror();
1856 /* Add all certificates to store */
1857 for (i = 0; i < sk_X509_num(certs); i++) {
1858 x = sk_X509_value(certs, i);
1859 key = X509_get_ex_data(x, cert_capi_idx);
1861 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1862 CERT_STORE_ADD_NEW, NULL)) {
1863 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1864 capi_addlasterror();
1869 hwnd = GetForegroundWindow();
1871 hwnd = GetActiveWindow();
1872 if (!hwnd && ctx->getconswindow)
1873 hwnd = ctx->getconswindow();
1874 /* Call dialog to select one */
1875 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1876 dlg_columns, 0, NULL);
1878 /* Find matching cert from list */
1880 for (i = 0; i < sk_X509_num(certs); i++) {
1881 x = sk_X509_value(certs, i);
1882 key = X509_get_ex_data(x, cert_capi_idx);
1883 if (CertCompareCertificate
1884 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1885 key->pcert->pCertInfo)) {
1894 CertCloseStore(dstore, 0);
1900 #else /* !__COMPILE_CAPIENG */
1901 # include <openssl/engine.h>
1902 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
1904 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
1906 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1911 IMPLEMENT_DYNAMIC_CHECK_FN()
1913 void engine_load_capi_int(void);
1914 void engine_load_capi_int(void)