2 * Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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
12 # define _WIN32_WINNT 0x0400
15 # include <wincrypt.h>
22 # define alloca _alloca
25 # include <openssl/crypto.h>
27 # ifndef OPENSSL_NO_CAPIENG
29 # include <openssl/buffer.h>
30 # include <openssl/bn.h>
31 # include <openssl/rsa.h>
32 # include <openssl/dsa.h>
35 * This module uses several "new" interfaces, among which is
36 * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
37 * one of possible values you can pass to function in question. By
38 * checking if it's defined we can see if wincrypt.h and accompanying
39 * crypt32.lib are in shape. The native MingW32 headers up to and
40 * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
41 * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
42 * so we check for these too and avoid compiling.
43 * Yes, it's rather "weak" test and if compilation fails,
44 * then re-configure with -DOPENSSL_NO_CAPIENG.
46 # if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
47 defined(CERT_STORE_PROV_SYSTEM_A) && \
48 defined(CERT_STORE_READONLY_FLAG)
49 # define __COMPILE_CAPIENG
50 # endif /* CERT_KEY_PROV_INFO_PROP_ID */
51 # endif /* OPENSSL_NO_CAPIENG */
54 #ifdef __COMPILE_CAPIENG
56 # undef X509_EXTENSIONS
58 /* Definitions which may be missing from earlier version of headers */
59 # ifndef CERT_STORE_OPEN_EXISTING_FLAG
60 # define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
63 # ifndef CERT_STORE_CREATE_NEW_FLAG
64 # define CERT_STORE_CREATE_NEW_FLAG 0x00002000
67 # ifndef CERT_SYSTEM_STORE_CURRENT_USER
68 # define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
71 # ifndef ALG_SID_SHA_256
72 # define ALG_SID_SHA_256 12
74 # ifndef ALG_SID_SHA_384
75 # define ALG_SID_SHA_384 13
77 # ifndef ALG_SID_SHA_512
78 # define ALG_SID_SHA_512 14
82 # define CALG_SHA_256 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_256)
85 # define CALG_SHA_384 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_384)
88 # define CALG_SHA_512 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_512)
92 # define PROV_RSA_AES 24
95 # include <openssl/engine.h>
96 # include <openssl/pem.h>
97 # include <openssl/x509v3.h>
99 # include "e_capi_err.h"
100 # include "e_capi_err.c"
102 static const char *engine_capi_id = "capi";
103 static const char *engine_capi_name = "CryptoAPI ENGINE";
105 typedef struct CAPI_CTX_st CAPI_CTX;
106 typedef struct CAPI_KEY_st CAPI_KEY;
108 static void capi_addlasterror(void);
109 static void capi_adderror(DWORD err);
111 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
113 static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
114 static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
115 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
116 void capi_free_key(CAPI_KEY *key);
118 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id,
121 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
123 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
124 UI_METHOD *ui_method, void *callback_data);
125 static int capi_rsa_sign(int dtype, const unsigned char *m,
126 unsigned int m_len, unsigned char *sigret,
127 unsigned int *siglen, const RSA *rsa);
128 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
129 unsigned char *to, RSA *rsa, int padding);
130 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
131 unsigned char *to, RSA *rsa, int padding);
132 static int capi_rsa_free(RSA *rsa);
134 # ifndef OPENSSL_NO_DSA
135 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
137 static int capi_dsa_free(DSA *dsa);
140 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
141 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
142 EVP_PKEY **pkey, STACK_OF(X509) **pother,
143 UI_METHOD *ui_method,
144 void *callback_data);
146 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
147 # ifdef OPENSSL_CAPIENG_DIALOG
148 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
151 void engine_load_capi_int(void);
153 typedef PCCERT_CONTEXT(WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,
154 LPCWSTR, DWORD, DWORD, void *);
155 typedef HWND(WINAPI *GETCONSWIN)(void);
158 * This structure contains CAPI ENGINE specific data: it contains various
159 * global options and affects how other functions behave.
162 # define CAPI_DBG_TRACE 2
163 # define CAPI_DBG_ERROR 1
168 /* Parameters to use for container lookup */
172 /* Certificate store name to use */
174 LPSTR ssl_client_store;
175 /* System store flags */
177 /* Lookup string meanings in load_private_key */
178 # define CAPI_LU_SUBSTR 1 /* Substring of subject: uses "storename" */
179 # define CAPI_LU_FNAME 2 /* Friendly name: uses storename */
180 # define CAPI_LU_CONTNAME 3 /* Container name: uses cspname, keytype */
182 /* Info to dump with dumpcerts option */
183 # define CAPI_DMP_SUMMARY 0x1 /* Issuer and serial name strings */
184 # define CAPI_DMP_FNAME 0x2 /* Friendly name */
185 # define CAPI_DMP_FULL 0x4 /* Full X509_print dump */
186 # define CAPI_DMP_PEM 0x8 /* Dump PEM format certificate */
187 # define CAPI_DMP_PSKEY 0x10 /* Dump pseudo key (if possible) */
188 # define CAPI_DMP_PKEYINFO 0x20 /* Dump key info (if possible) */
190 int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
191 CERTDLG certselectdlg;
192 GETCONSWIN getconswindow;
195 static CAPI_CTX *capi_ctx_new(void);
196 static void capi_ctx_free(CAPI_CTX *ctx);
197 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type,
199 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
201 # define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
202 # define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
203 # define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
204 # define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
205 # define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
206 # define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
207 # define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
208 # define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
209 # define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
210 # define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
211 # define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
212 # define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
213 # define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
214 # define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
216 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
217 {CAPI_CMD_LIST_CERTS,
219 "List all certificates in store",
220 ENGINE_CMD_FLAG_NO_INPUT},
221 {CAPI_CMD_LOOKUP_CERT,
223 "Lookup and output certificates",
224 ENGINE_CMD_FLAG_STRING},
225 {CAPI_CMD_DEBUG_LEVEL,
227 "debug level (1=errors, 2=trace)",
228 ENGINE_CMD_FLAG_NUMERIC},
229 {CAPI_CMD_DEBUG_FILE,
231 "debugging filename)",
232 ENGINE_CMD_FLAG_STRING},
235 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
236 ENGINE_CMD_FLAG_NUMERIC},
240 ENGINE_CMD_FLAG_NO_INPUT},
241 {CAPI_CMD_SET_CSP_IDX,
244 ENGINE_CMD_FLAG_NUMERIC},
245 {CAPI_CMD_SET_CSP_NAME,
247 "Set CSP name, (default CSP used if not specified)",
248 ENGINE_CMD_FLAG_STRING},
249 {CAPI_CMD_SET_CSP_TYPE,
251 "Set CSP type, (default RSA_PROV_FULL)",
252 ENGINE_CMD_FLAG_NUMERIC},
253 {CAPI_CMD_LIST_CONTAINERS,
255 "list container names",
256 ENGINE_CMD_FLAG_NO_INPUT},
257 {CAPI_CMD_LIST_OPTIONS,
259 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
260 "32=private key info)",
261 ENGINE_CMD_FLAG_NUMERIC},
262 {CAPI_CMD_LOOKUP_METHOD,
264 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
265 ENGINE_CMD_FLAG_NUMERIC},
266 {CAPI_CMD_STORE_NAME,
268 "certificate store name, default \"MY\"",
269 ENGINE_CMD_FLAG_STRING},
270 {CAPI_CMD_STORE_FLAGS,
272 "Certificate store flags: 1 = system store",
273 ENGINE_CMD_FLAG_NUMERIC},
278 static int capi_idx = -1;
279 static int rsa_capi_idx = -1;
280 static int dsa_capi_idx = -1;
281 static int cert_capi_idx = -1;
283 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
289 if (capi_idx == -1) {
290 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
293 ctx = ENGINE_get_ex_data(e, capi_idx);
294 out = BIO_new_fp(stdout, BIO_NOCLOSE);
296 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_FILE_OPEN_ERROR);
300 case CAPI_CMD_LIST_CSPS:
301 ret = capi_list_providers(ctx, out);
304 case CAPI_CMD_LIST_CERTS:
305 ret = capi_list_certs(ctx, out, NULL);
308 case CAPI_CMD_LOOKUP_CERT:
309 ret = capi_list_certs(ctx, out, p);
312 case CAPI_CMD_LIST_CONTAINERS:
313 ret = capi_list_containers(ctx, out);
316 case CAPI_CMD_STORE_NAME:
317 tmpstr = OPENSSL_strdup(p);
318 if (tmpstr != NULL) {
319 OPENSSL_free(ctx->storename);
320 ctx->storename = tmpstr;
321 CAPI_trace(ctx, "Setting store name to %s\n", p);
323 CAPIerr(CAPI_F_CAPI_CTRL, ERR_R_MALLOC_FAILURE);
328 case CAPI_CMD_STORE_FLAGS:
330 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
331 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
333 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
334 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
336 CAPI_trace(ctx, "Setting flags to %d\n", i);
339 case CAPI_CMD_DEBUG_LEVEL:
340 ctx->debug_level = (int)i;
341 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
344 case CAPI_CMD_DEBUG_FILE:
345 tmpstr = OPENSSL_strdup(p);
346 if (tmpstr != NULL) {
347 ctx->debug_file = tmpstr;
348 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
350 CAPIerr(CAPI_F_CAPI_CTRL, ERR_R_MALLOC_FAILURE);
355 case CAPI_CMD_KEYTYPE:
357 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
360 case CAPI_CMD_SET_CSP_IDX:
361 ret = capi_ctx_set_provname_idx(ctx, i);
364 case CAPI_CMD_LIST_OPTIONS:
368 case CAPI_CMD_LOOKUP_METHOD:
369 if (i < 1 || i > 3) {
370 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
374 ctx->lookup_method = i;
377 case CAPI_CMD_SET_CSP_NAME:
378 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
381 case CAPI_CMD_SET_CSP_TYPE:
386 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
395 static RSA_METHOD *capi_rsa_method = NULL;
396 # ifndef OPENSSL_NO_DSA
397 static DSA_METHOD *capi_dsa_method = NULL;
400 static int use_aes_csp = 0;
402 static int capi_init(ENGINE *e)
405 const RSA_METHOD *ossl_rsa_meth;
406 # ifndef OPENSSL_NO_DSA
407 const DSA_METHOD *ossl_dsa_meth;
412 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
416 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
418 /* Setup RSA_METHOD */
419 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
420 ossl_rsa_meth = RSA_PKCS1_OpenSSL();
421 if ( !RSA_meth_set_pub_enc(capi_rsa_method,
422 RSA_meth_get_pub_enc(ossl_rsa_meth))
423 || !RSA_meth_set_pub_dec(capi_rsa_method,
424 RSA_meth_get_pub_dec(ossl_rsa_meth))
425 || !RSA_meth_set_priv_enc(capi_rsa_method, capi_rsa_priv_enc)
426 || !RSA_meth_set_priv_dec(capi_rsa_method, capi_rsa_priv_dec)
427 || !RSA_meth_set_mod_exp(capi_rsa_method,
428 RSA_meth_get_mod_exp(ossl_rsa_meth))
429 || !RSA_meth_set_bn_mod_exp(capi_rsa_method,
430 RSA_meth_get_bn_mod_exp(ossl_rsa_meth))
431 || !RSA_meth_set_finish(capi_rsa_method, capi_rsa_free)
432 || !RSA_meth_set_sign(capi_rsa_method, capi_rsa_sign)) {
436 # ifndef OPENSSL_NO_DSA
437 /* Setup DSA Method */
438 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
439 ossl_dsa_meth = DSA_OpenSSL();
440 if ( !DSA_meth_set_sign(capi_dsa_method, capi_dsa_do_sign)
441 || !DSA_meth_set_verify(capi_dsa_method,
442 DSA_meth_get_verify(ossl_dsa_meth))
443 || !DSA_meth_set_finish(capi_dsa_method, capi_dsa_free)
444 || !DSA_meth_set_mod_exp(capi_dsa_method,
445 DSA_meth_get_mod_exp(ossl_dsa_meth))
446 || !DSA_meth_set_bn_mod_exp(capi_dsa_method,
447 DSA_meth_get_bn_mod_exp(ossl_dsa_meth))) {
453 ctx = capi_ctx_new();
457 ENGINE_set_ex_data(e, capi_idx, ctx);
459 # ifdef OPENSSL_CAPIENG_DIALOG
461 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
462 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
465 (CERTDLG) GetProcAddress(cryptui,
466 "CryptUIDlgSelectCertificateFromStore");
469 (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow");
470 if (cryptui && !OPENSSL_isservice())
471 ctx->client_cert_select = cert_select_dialog;
475 /* See if we support AES CSP */
477 if (CryptAcquireContext(&hprov, NULL, NULL, PROV_RSA_AES,
478 CRYPT_VERIFYCONTEXT)) {
480 CryptReleaseContext(hprov, 0);
486 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
492 static int capi_destroy(ENGINE *e)
494 RSA_meth_free(capi_rsa_method);
495 capi_rsa_method = NULL;
496 # ifndef OPENSSL_NO_DSA
497 DSA_meth_free(capi_dsa_method);
498 capi_dsa_method = NULL;
500 ERR_unload_CAPI_strings();
504 static int capi_finish(ENGINE *e)
507 ctx = ENGINE_get_ex_data(e, capi_idx);
509 ENGINE_set_ex_data(e, capi_idx, NULL);
514 * CryptoAPI key application data. This contains a handle to the private key
515 * container (for sign operations) and a handle to the key (for decrypt
520 /* Associated certificate context (if any) */
521 PCCERT_CONTEXT pcert;
527 static int bind_capi(ENGINE *e)
529 capi_rsa_method = RSA_meth_new("CryptoAPI RSA method", 0);
530 if (capi_rsa_method == NULL)
532 # ifndef OPENSSL_NO_DSA
533 capi_dsa_method = DSA_meth_new("CryptoAPI DSA method", 0);
534 if (capi_dsa_method == NULL)
537 if (!ENGINE_set_id(e, engine_capi_id)
538 || !ENGINE_set_name(e, engine_capi_name)
539 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
540 || !ENGINE_set_init_function(e, capi_init)
541 || !ENGINE_set_finish_function(e, capi_finish)
542 || !ENGINE_set_destroy_function(e, capi_destroy)
543 || !ENGINE_set_RSA(e, capi_rsa_method)
544 # ifndef OPENSSL_NO_DSA
545 || !ENGINE_set_DSA(e, capi_dsa_method)
547 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
548 || !ENGINE_set_load_ssl_client_cert_function(e,
549 capi_load_ssl_client_cert)
550 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
551 || !ENGINE_set_ctrl_function(e, capi_ctrl))
553 ERR_load_CAPI_strings();
557 RSA_meth_free(capi_rsa_method);
558 capi_rsa_method = NULL;
559 # ifndef OPENSSL_NO_DSA
560 DSA_meth_free(capi_dsa_method);
561 capi_dsa_method = NULL;
566 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
567 static int bind_helper(ENGINE *e, const char *id)
569 if (id && (strcmp(id, engine_capi_id) != 0))
576 IMPLEMENT_DYNAMIC_CHECK_FN()
577 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
579 static ENGINE *engine_capi(void)
581 ENGINE *ret = ENGINE_new();
584 if (!bind_capi(ret)) {
591 void engine_load_capi_int(void)
593 /* Copied from eng_[openssl|dyn].c */
594 ENGINE *toadd = engine_capi();
603 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
607 * Reverse buffer in place: since this is a keyblob structure that will
608 * be freed up after conversion anyway it doesn't matter if we change
611 for (i = 0; i < binlen / 2; i++) {
614 bin[i] = bin[binlen - i - 1];
615 bin[binlen - i - 1] = c;
618 if (!BN_bin2bn(bin, binlen, bn))
623 /* Given a CAPI_KEY get an EVP_PKEY structure */
625 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
627 unsigned char *pubkey = NULL;
632 EVP_PKEY *ret = NULL;
633 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
634 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
639 pubkey = OPENSSL_malloc(len);
644 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
645 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
650 bh = (BLOBHEADER *) pubkey;
651 if (bh->bType != PUBLICKEYBLOB) {
652 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
655 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) {
658 BIGNUM *e = NULL, *n = NULL;
659 unsigned char *rsa_modulus;
660 rp = (RSAPUBKEY *) (bh + 1);
661 if (rp->magic != 0x31415352) {
663 BIO_snprintf(magstr, 10, "%lx", rp->magic);
664 CAPIerr(CAPI_F_CAPI_GET_PKEY,
665 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
666 ERR_add_error_data(2, "magic=0x", magstr);
669 rsa_modulus = (unsigned char *)(rp + 1);
670 rkey = RSA_new_method(eng);
677 if (e == NULL || n == NULL) {
683 RSA_set0_key(rkey, n, e, NULL);
685 if (!BN_set_word(e, rp->pubexp))
688 rsa_modlen = rp->bitlen / 8;
689 if (!lend_tobn(n, rsa_modulus, rsa_modlen))
692 RSA_set_ex_data(rkey, rsa_capi_idx, key);
694 if ((ret = EVP_PKEY_new()) == NULL)
697 EVP_PKEY_assign_RSA(ret, rkey);
700 # ifndef OPENSSL_NO_DSA
701 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
705 BIGNUM *p, *q, *g, *pub_key;
706 dp = (DSSPUBKEY *) (bh + 1);
707 if (dp->magic != 0x31535344) {
709 BIO_snprintf(magstr, 10, "%lx", dp->magic);
710 CAPIerr(CAPI_F_CAPI_GET_PKEY,
711 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
712 ERR_add_error_data(2, "magic=0x", magstr);
715 dsa_plen = dp->bitlen / 8;
716 btmp = (unsigned char *)(dp + 1);
717 dkey = DSA_new_method(eng);
724 if (p == NULL || q == NULL || g == NULL || pub_key == NULL) {
731 DSA_set0_pqg(dkey, p, q, g);
732 DSA_set0_key(dkey, pub_key, NULL);
733 if (!lend_tobn(p, btmp, dsa_plen))
736 if (!lend_tobn(q, btmp, 20))
739 if (!lend_tobn(g, btmp, dsa_plen))
742 if (!lend_tobn(pub_key, btmp, dsa_plen))
746 DSA_set_ex_data(dkey, dsa_capi_idx, key);
748 if ((ret = EVP_PKEY_new()) == NULL)
751 EVP_PKEY_assign_DSA(ret, dkey);
756 BIO_snprintf(algstr, 10, "%ux", bh->aiKeyAlg);
757 CAPIerr(CAPI_F_CAPI_GET_PKEY,
758 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
759 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
764 OPENSSL_free(pubkey);
767 # ifndef OPENSSL_NO_DSA
775 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
780 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
781 UI_METHOD *ui_method, void *callback_data)
786 ctx = ENGINE_get_ex_data(eng, capi_idx);
789 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
793 key = capi_find_key(ctx, key_id);
798 ret = capi_get_pkey(eng, key);
806 /* CryptoAPI RSA operations */
808 int capi_rsa_priv_enc(int flen, const unsigned char *from,
809 unsigned char *to, RSA *rsa, int padding)
811 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
815 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
816 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
826 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
828 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
830 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
832 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
835 /* Convert the signature type to a CryptoAPI algorithm ID */
858 alg = CALG_SSL3_SHAMD5;
863 BIO_snprintf(algstr, 10, "%x", dtype);
864 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
865 ERR_add_error_data(2, "NID=0x", algstr);
870 /* Create the hash object */
871 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
872 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
876 /* Set the hash value to the value passed */
878 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
879 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
884 /* Finally sign it */
885 slen = RSA_size(rsa);
886 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
887 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
892 /* Inplace byte reversal of signature */
893 for (i = 0; i < slen / 2; i++) {
896 sigret[i] = sigret[slen - i - 1];
897 sigret[slen - i - 1] = c;
905 CryptDestroyHash(hash);
910 int capi_rsa_priv_dec(int flen, const unsigned char *from,
911 unsigned char *to, RSA *rsa, int padding)
914 unsigned char *tmpbuf;
922 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
924 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
926 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
928 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
932 if (padding != RSA_PKCS1_PADDING) {
934 BIO_snprintf(errstr, 10, "%d", padding);
935 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
936 ERR_add_error_data(2, "padding=", errstr);
940 /* Create temp reverse order version of input */
941 if ((tmpbuf = OPENSSL_malloc(flen)) == NULL) {
942 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
945 for (i = 0; i < flen; i++)
946 tmpbuf[flen - i - 1] = from[i];
948 /* Finally decrypt it */
950 if (!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &dlen)) {
951 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
953 OPENSSL_free(tmpbuf);
956 memcpy(to, tmpbuf, (flen = (int)dlen));
958 OPENSSL_free(tmpbuf);
963 static int capi_rsa_free(RSA *rsa)
966 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
967 capi_free_key(capi_key);
968 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
972 # ifndef OPENSSL_NO_DSA
973 /* CryptoAPI DSA operations */
975 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
983 unsigned char csigbuf[40];
985 ctx = ENGINE_get_ex_data(DSA_get0_engine(dsa), capi_idx);
987 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
989 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
992 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
997 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
1001 /* Create the hash object */
1002 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
1003 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
1004 capi_addlasterror();
1008 /* Set the hash value to the value passed */
1009 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
1010 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
1011 capi_addlasterror();
1015 /* Finally sign it */
1016 slen = sizeof(csigbuf);
1017 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
1018 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
1019 capi_addlasterror();
1022 BIGNUM *r = BN_new(), *s = BN_new();
1024 if (r == NULL || s == NULL
1025 || !lend_tobn(r, csigbuf, 20)
1026 || !lend_tobn(s, csigbuf + 20, 20)
1027 || (ret = DSA_SIG_new()) == NULL) {
1028 BN_free(r); /* BN_free checks for BIGNUM * being NULL */
1032 DSA_SIG_set0(ret, r, s);
1038 OPENSSL_cleanse(csigbuf, 40);
1039 CryptDestroyHash(hash);
1043 static int capi_dsa_free(DSA *dsa)
1046 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1047 capi_free_key(capi_key);
1048 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1053 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format,
1058 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1060 out = BIO_new_file(ctx->debug_file, "a+");
1062 CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR);
1065 BIO_vprintf(out, format, argptr);
1069 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
1072 va_start(args, format);
1073 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1077 static void capi_addlasterror(void)
1079 capi_adderror(GetLastError());
1082 static void capi_adderror(DWORD err)
1085 BIO_snprintf(errstr, 10, "%lX", err);
1086 ERR_add_error_data(2, "Error code= 0x", errstr);
1089 static char *wide_to_asc(LPCWSTR wstr)
1096 len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */
1097 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1099 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1102 str = OPENSSL_malloc(sz);
1104 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1107 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1109 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1115 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype,
1120 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1121 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) {
1122 err = GetLastError();
1123 if (err == ERROR_NO_MORE_ITEMS)
1125 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1129 name = OPENSSL_malloc(len);
1131 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, ERR_R_MALLOC_FAILURE);
1134 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) {
1135 err = GetLastError();
1137 if (err == ERROR_NO_MORE_ITEMS)
1139 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1143 if (sizeof(TCHAR) != sizeof(char)) {
1144 *pname = wide_to_asc((WCHAR *)name);
1149 *pname = (char *)name;
1151 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname,
1157 static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
1161 LPSTR provname = NULL;
1162 CAPI_trace(ctx, "capi_list_providers\n");
1163 BIO_printf(out, "Available CSPs:\n");
1164 for (idx = 0;; idx++) {
1165 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1170 BIO_printf(out, "%lu. %s, type %lu\n", idx, provname, ptype);
1171 OPENSSL_free(provname);
1176 static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
1180 DWORD err, idx, flags, buflen = 0, clen;
1182 LPTSTR cspname = NULL;
1184 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1186 if (ctx->cspname && sizeof(TCHAR) != sizeof(char)) {
1187 if ((clen = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1189 cspname = alloca(clen * sizeof(WCHAR));
1190 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname,
1194 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1195 capi_addlasterror();
1199 cspname = (TCHAR *)ctx->cspname;
1201 if (!CryptAcquireContext(&hprov, NULL, cspname, ctx->csptype,
1202 CRYPT_VERIFYCONTEXT)) {
1203 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1204 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1205 capi_addlasterror();
1208 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen,
1210 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1211 capi_addlasterror();
1212 CryptReleaseContext(hprov, 0);
1215 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1218 cname = OPENSSL_malloc(buflen);
1219 if (cname == NULL) {
1220 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1224 for (idx = 0;; idx++) {
1229 flags = CRYPT_FIRST;
1232 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, (BYTE *)cname,
1234 err = GetLastError();
1235 if (err == ERROR_NO_MORE_ITEMS)
1237 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1241 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1242 cname, clen, idx, flags);
1243 if (!cname[0] && (clen == buflen)) {
1244 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1247 BIO_printf(out, "%lu. %s\n", idx, cname);
1254 OPENSSL_free(cname);
1255 CryptReleaseContext(hprov, 0);
1260 static CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx,
1261 PCCERT_CONTEXT cert)
1264 CRYPT_KEY_PROV_INFO *pinfo;
1266 if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID,
1269 pinfo = OPENSSL_malloc(len);
1270 if (pinfo == NULL) {
1271 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1274 if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID,
1276 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1277 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1278 capi_addlasterror();
1279 OPENSSL_free(pinfo);
1285 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out,
1286 CRYPT_KEY_PROV_INFO *pinfo)
1288 char *provname = NULL, *contname = NULL;
1290 BIO_printf(out, " No Private Key\n");
1293 provname = wide_to_asc(pinfo->pwszProvName);
1294 contname = wide_to_asc(pinfo->pwszContainerName);
1295 if (!provname || !contname)
1298 BIO_printf(out, " Private Key Info:\n");
1299 BIO_printf(out, " Provider Name: %s, Provider Type %lu\n", provname,
1301 BIO_printf(out, " Container Name: %s, Key Type %lu\n", contname,
1304 OPENSSL_free(provname);
1305 OPENSSL_free(contname);
1308 static char *capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1313 CAPI_trace(ctx, "capi_cert_get_fname\n");
1314 if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID,
1317 wfname = OPENSSL_malloc(dlen);
1320 if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID,
1322 char *fname = wide_to_asc(wfname);
1323 OPENSSL_free(wfname);
1326 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1327 capi_addlasterror();
1329 OPENSSL_free(wfname);
1333 static void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1336 const unsigned char *p;
1337 unsigned long flags = ctx->dump_flags;
1338 if (flags & CAPI_DMP_FNAME) {
1340 fname = capi_cert_get_fname(ctx, cert);
1342 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1343 OPENSSL_free(fname);
1345 BIO_printf(out, " <No Friendly Name>\n");
1349 p = cert->pbCertEncoded;
1350 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1352 BIO_printf(out, " <Can't parse certificate>\n");
1353 if (flags & CAPI_DMP_SUMMARY) {
1354 BIO_printf(out, " Subject: ");
1355 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1356 BIO_printf(out, "\n Issuer: ");
1357 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1358 BIO_printf(out, "\n");
1360 if (flags & CAPI_DMP_FULL)
1361 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1363 if (flags & CAPI_DMP_PKEYINFO) {
1364 CRYPT_KEY_PROV_INFO *pinfo;
1365 pinfo = capi_get_prov_info(ctx, cert);
1366 capi_dump_prov_info(ctx, out, pinfo);
1367 OPENSSL_free(pinfo);
1370 if (flags & CAPI_DMP_PEM)
1371 PEM_write_bio_X509(out, x);
1375 static HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1380 storename = ctx->storename;
1383 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1385 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1386 ctx->store_flags, storename);
1388 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1389 capi_addlasterror();
1394 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1400 PCCERT_CONTEXT cert = NULL;
1402 storename = ctx->storename;
1405 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1407 hstore = capi_open_store(ctx, storename);
1411 cert = capi_find_cert(ctx, id, hstore);
1416 capi_dump_cert(ctx, out, cert);
1417 CertFreeCertificateContext(cert);
1419 for (idx = 0;; idx++) {
1420 cert = CertEnumCertificatesInStore(hstore, cert);
1423 BIO_printf(out, "Certificate %d\n", idx);
1424 capi_dump_cert(ctx, out, cert);
1428 CertCloseStore(hstore, 0);
1432 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id,
1435 PCCERT_CONTEXT cert = NULL;
1438 switch (ctx->lookup_method) {
1439 case CAPI_LU_SUBSTR:
1440 return CertFindCertificateInStore(hstore, X509_ASN_ENCODING, 0,
1441 CERT_FIND_SUBJECT_STR_A, id, NULL);
1444 cert = CertEnumCertificatesInStore(hstore, cert);
1447 fname = capi_cert_get_fname(ctx, cert);
1449 if (strcmp(fname, id))
1453 OPENSSL_free(fname);
1463 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const TCHAR *contname,
1464 TCHAR *provname, DWORD ptype, DWORD keyspec)
1467 CAPI_KEY *key = OPENSSL_malloc(sizeof(*key));
1471 /* If PROV_RSA_AES supported use it instead */
1472 if (ptype == PROV_RSA_FULL && use_aes_csp) {
1474 ptype = PROV_RSA_AES;
1475 CAPI_trace(ctx, "capi_get_key, contname=%s, RSA_AES_CSP\n", contname);
1476 } else if (sizeof(TCHAR) == sizeof(char)) {
1477 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1478 contname, provname, ptype);
1479 } else if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) {
1480 /* above 'if' is optimization to minimize malloc-ations */
1481 char *_contname = wide_to_asc((WCHAR *)contname);
1482 char *_provname = wide_to_asc((WCHAR *)provname);
1484 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1485 _contname, _provname, ptype);
1486 OPENSSL_free(_provname);
1487 OPENSSL_free(_contname);
1489 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1490 dwFlags = CRYPT_MACHINE_KEYSET;
1491 if (!CryptAcquireContext(&key->hprov, contname, provname, ptype, dwFlags)) {
1492 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1493 capi_addlasterror();
1496 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1497 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1498 capi_addlasterror();
1499 CryptReleaseContext(key->hprov, 0);
1502 key->keyspec = keyspec;
1511 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1513 CAPI_KEY *key = NULL;
1514 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1515 char *provname = NULL, *contname = NULL;
1516 pinfo = capi_get_prov_info(ctx, cert);
1519 if (sizeof(TCHAR) != sizeof(char))
1520 key = capi_get_key(ctx, (TCHAR *)pinfo->pwszContainerName,
1521 (TCHAR *)pinfo->pwszProvName,
1522 pinfo->dwProvType, pinfo->dwKeySpec);
1524 provname = wide_to_asc(pinfo->pwszProvName);
1525 contname = wide_to_asc(pinfo->pwszContainerName);
1526 if (!provname || !contname)
1528 key = capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1529 pinfo->dwProvType, pinfo->dwKeySpec);
1533 OPENSSL_free(pinfo);
1534 OPENSSL_free(provname);
1535 OPENSSL_free(contname);
1539 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1541 PCCERT_CONTEXT cert;
1543 CAPI_KEY *key = NULL;
1544 switch (ctx->lookup_method) {
1545 case CAPI_LU_SUBSTR:
1547 hstore = capi_open_store(ctx, NULL);
1550 cert = capi_find_cert(ctx, id, hstore);
1552 key = capi_get_cert_key(ctx, cert);
1553 CertFreeCertificateContext(cert);
1555 CertCloseStore(hstore, 0);
1558 case CAPI_LU_CONTNAME:
1559 if (sizeof(TCHAR) != sizeof(char)) {
1560 WCHAR *contname, *provname;
1563 if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) &&
1564 (contname = alloca(len * sizeof(WCHAR)),
1565 MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) &&
1566 (len = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1568 (provname = alloca(len * sizeof(WCHAR)),
1569 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1571 key = capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1572 ctx->csptype, ctx->keytype);
1574 key = capi_get_key(ctx, (TCHAR *)id, (TCHAR *)ctx->cspname,
1575 ctx->csptype, ctx->keytype);
1583 void capi_free_key(CAPI_KEY *key)
1587 CryptDestroyKey(key->key);
1588 CryptReleaseContext(key->hprov, 0);
1590 CertFreeCertificateContext(key->pcert);
1594 /* Initialize a CAPI_CTX structure */
1596 static CAPI_CTX *capi_ctx_new(void)
1598 CAPI_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
1601 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1604 ctx->csptype = PROV_RSA_FULL;
1605 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1606 ctx->keytype = AT_KEYEXCHANGE;
1607 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1608 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1609 ctx->lookup_method = CAPI_LU_SUBSTR;
1610 ctx->client_cert_select = cert_select_simple;
1614 static void capi_ctx_free(CAPI_CTX *ctx)
1616 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1619 OPENSSL_free(ctx->cspname);
1620 OPENSSL_free(ctx->debug_file);
1621 OPENSSL_free(ctx->storename);
1622 OPENSSL_free(ctx->ssl_client_store);
1626 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type,
1631 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1636 if (sizeof(TCHAR) != sizeof(char)) {
1638 if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) {
1639 name = alloca(len * sizeof(WCHAR));
1640 MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len);
1643 name = (TCHAR *)pname;
1645 if (!name || !CryptAcquireContext(&hprov, NULL, name, type,
1646 CRYPT_VERIFYCONTEXT)) {
1647 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1648 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1649 capi_addlasterror();
1652 CryptReleaseContext(hprov, 0);
1654 tmpcspname = OPENSSL_strdup(pname);
1655 if (tmpcspname == NULL) {
1656 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, ERR_R_MALLOC_FAILURE);
1659 OPENSSL_free(ctx->cspname);
1660 ctx->cspname = tmpcspname;
1661 ctx->csptype = type;
1665 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1670 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1672 res = capi_ctx_set_provname(ctx, pname, type, 0);
1673 OPENSSL_free(pname);
1677 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1681 /* Special case: empty list: match anything */
1682 if (sk_X509_NAME_num(ca_dn) <= 0)
1684 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1685 nm = sk_X509_NAME_value(ca_dn, i);
1686 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1692 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1693 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1694 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1695 UI_METHOD *ui_method,
1696 void *callback_data)
1698 STACK_OF(X509) *certs = NULL;
1701 const unsigned char *p;
1702 int i, client_cert_idx;
1704 PCCERT_CONTEXT cert = NULL, excert = NULL;
1707 ctx = ENGINE_get_ex_data(e, capi_idx);
1712 storename = ctx->ssl_client_store;
1716 hstore = capi_open_store(ctx, storename);
1719 /* Enumerate all certificates collect any matches */
1721 cert = CertEnumCertificatesInStore(hstore, cert);
1724 p = cert->pbCertEncoded;
1725 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1727 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1730 if (cert_issuer_match(ca_dn, x)
1731 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1732 key = capi_get_cert_key(ctx, cert);
1738 * Match found: attach extra data to it so we can retrieve the
1741 excert = CertDuplicateCertificateContext(cert);
1742 key->pcert = excert;
1743 X509_set_ex_data(x, cert_capi_idx, key);
1746 certs = sk_X509_new_null();
1748 sk_X509_push(certs, x);
1755 CertFreeCertificateContext(cert);
1757 CertCloseStore(hstore, 0);
1762 /* Select the appropriate certificate */
1764 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1766 /* Set the selected certificate and free the rest */
1768 for (i = 0; i < sk_X509_num(certs); i++) {
1769 x = sk_X509_value(certs, i);
1770 if (i == client_cert_idx)
1773 key = X509_get_ex_data(x, cert_capi_idx);
1779 sk_X509_free(certs);
1784 /* Setup key for selected certificate */
1786 key = X509_get_ex_data(*pcert, cert_capi_idx);
1787 *pkey = capi_get_pkey(e, key);
1788 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1794 /* Simple client cert selection function: always select first */
1796 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1801 # ifdef OPENSSL_CAPIENG_DIALOG
1804 * More complex cert selection function, using standard function
1805 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1809 * Definitions which are in cryptuiapi.h but this is not present in older
1810 * versions of headers.
1813 # ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1814 # define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1815 # define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1818 # define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1819 # define dlg_prompt L"Select a certificate to use for authentication"
1820 # define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1821 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1823 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1827 PCCERT_CONTEXT cert;
1832 if (sk_X509_num(certs) == 1)
1834 ctx = ENGINE_get_ex_data(e, capi_idx);
1835 /* Create an in memory store of certificates */
1836 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1837 CERT_STORE_CREATE_NEW_FLAG, NULL);
1839 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1840 capi_addlasterror();
1843 /* Add all certificates to store */
1844 for (i = 0; i < sk_X509_num(certs); i++) {
1845 x = sk_X509_value(certs, i);
1846 key = X509_get_ex_data(x, cert_capi_idx);
1848 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1849 CERT_STORE_ADD_NEW, NULL)) {
1850 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1851 capi_addlasterror();
1856 hwnd = GetForegroundWindow();
1858 hwnd = GetActiveWindow();
1859 if (!hwnd && ctx->getconswindow)
1860 hwnd = ctx->getconswindow();
1861 /* Call dialog to select one */
1862 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1863 dlg_columns, 0, NULL);
1865 /* Find matching cert from list */
1867 for (i = 0; i < sk_X509_num(certs); i++) {
1868 x = sk_X509_value(certs, i);
1869 key = X509_get_ex_data(x, cert_capi_idx);
1870 if (CertCompareCertificate
1871 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1872 key->pcert->pCertInfo)) {
1881 CertCloseStore(dstore, 0);
1887 #else /* !__COMPILE_CAPIENG */
1888 # include <openssl/engine.h>
1889 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
1891 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
1893 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1898 IMPLEMENT_DYNAMIC_CHECK_FN()
1900 void engine_load_capi_int(void);
1901 void engine_load_capi_int(void)