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 * ====================================================================
59 #include <openssl/crypto.h>
60 #include <openssl/buffer.h>
61 #include <openssl/engine.h>
62 #include <openssl/rsa.h>
63 #include <openssl/bn.h>
64 #include <openssl/pem.h>
66 #ifdef OPENSSL_SYS_WIN32
67 #ifndef OPENSSL_NO_CAPIENG
70 #define _WIN32_WINNT 0x400
74 #include "e_capi_err.h"
75 #include "e_capi_err.c"
78 static const char *engine_capi_id = "capi";
79 static const char *engine_capi_name = "CryptoAPI ENGINE";
81 typedef struct CAPI_CTX_st CAPI_CTX;
82 typedef struct CAPI_KEY_st CAPI_KEY;
84 static void capi_addlasterror(void);
85 static void capi_adderror(DWORD err);
87 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
89 static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
90 static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
91 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
92 void capi_free_key(CAPI_KEY *key);
94 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore);
96 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
98 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
99 UI_METHOD *ui_method, void *callback_data);
100 static int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
101 unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
102 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
103 unsigned char *to, RSA *rsa, int padding);
104 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
105 unsigned char *to, RSA *rsa, int padding);
106 static int capi_rsa_free(RSA *rsa);
108 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
110 static int capi_dsa_free(DSA *dsa);
112 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
113 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
114 STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data);
116 /* This structure contains CAPI ENGINE specific data:
117 * it contains various global options and affects how
118 * other functions behave.
121 #define CAPI_DBG_TRACE 2
122 #define CAPI_DBG_ERROR 1
127 /* Parameters to use for container lookup */
131 /* Certificate store name to use */
133 LPTSTR ssl_client_store;
135 /* Lookup string meanings in load_private_key */
136 /* Substring of subject: uses "storename" */
137 #define CAPI_LU_SUBSTR 0
138 /* Friendly name: uses storename */
139 #define CAPI_LU_FNAME 1
140 /* Container name: uses cspname, keytype */
141 #define CAPI_LU_CONTNAME 2
143 /* Info to dump with dumpcerts option */
144 /* Issuer and serial name strings */
145 #define CAPI_DMP_SUMMARY 0x1
147 #define CAPI_DMP_FNAME 0x2
148 /* Full X509_print dump */
149 #define CAPI_DMP_FULL 0x4
150 /* Dump PEM format certificate */
151 #define CAPI_DMP_PEM 0x8
152 /* Dump pseudo key (if possible) */
153 #define CAPI_DMP_PSKEY 0x10
154 /* Dump key info (if possible) */
155 #define CAPI_DMP_PKEYINFO 0x20
161 static CAPI_CTX *capi_ctx_new();
162 static void capi_ctx_free(CAPI_CTX *ctx);
163 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check);
164 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
166 #define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
167 #define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
168 #define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
169 #define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
170 #define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
171 #define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
172 #define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
173 #define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
174 #define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
175 #define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
176 #define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
177 #define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
178 #define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
180 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
181 {CAPI_CMD_LIST_CERTS,
183 "List all certificates in store",
184 ENGINE_CMD_FLAG_NO_INPUT},
185 {CAPI_CMD_LOOKUP_CERT,
187 "Lookup and output certificates",
188 ENGINE_CMD_FLAG_STRING},
189 {CAPI_CMD_DEBUG_LEVEL,
191 "debug level (1=errors, 2=trace)",
192 ENGINE_CMD_FLAG_NUMERIC},
193 {CAPI_CMD_DEBUG_FILE,
195 "debugging filename)",
196 ENGINE_CMD_FLAG_STRING},
199 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
200 ENGINE_CMD_FLAG_NUMERIC},
204 ENGINE_CMD_FLAG_NO_INPUT},
205 {CAPI_CMD_SET_CSP_IDX,
208 ENGINE_CMD_FLAG_NUMERIC},
209 {CAPI_CMD_SET_CSP_NAME,
211 "Set CSP name, (default CSP used if not specified)",
212 ENGINE_CMD_FLAG_STRING},
213 {CAPI_CMD_SET_CSP_TYPE,
215 "Set CSP type, (default RSA_PROV_FULL)",
216 ENGINE_CMD_FLAG_NUMERIC},
217 {CAPI_CMD_LIST_CONTAINERS,
219 "list container names",
220 ENGINE_CMD_FLAG_NO_INPUT},
221 {CAPI_CMD_LIST_OPTIONS,
223 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
224 "32=private key info)",
225 ENGINE_CMD_FLAG_NUMERIC},
226 {CAPI_CMD_LOOKUP_METHOD,
228 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
229 ENGINE_CMD_FLAG_NUMERIC},
230 {CAPI_CMD_STORE_NAME,
232 "certificate store name, default \"MY\"",
233 ENGINE_CMD_FLAG_STRING},
238 static int capi_idx = -1;
239 static int rsa_capi_idx = -1;
240 static int dsa_capi_idx = -1;
242 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
249 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
252 ctx = ENGINE_get_ex_data(e, capi_idx);
253 out = BIO_new_fp(stdout, BIO_NOCLOSE);
256 case CAPI_CMD_LIST_CSPS:
257 ret = capi_list_providers(ctx, out);
260 case CAPI_CMD_LIST_CERTS:
261 ret = capi_list_certs(ctx, out, NULL);
264 case CAPI_CMD_LOOKUP_CERT:
265 ret = capi_list_certs(ctx, out, p);
268 case CAPI_CMD_LIST_CONTAINERS:
269 ret = capi_list_containers(ctx, out);
272 case CAPI_CMD_STORE_NAME:
274 OPENSSL_free(ctx->storename);
275 ctx->storename = BUF_strdup(p);
276 CAPI_trace(ctx, "Setting store name to %s\n", p);
279 case CAPI_CMD_DEBUG_LEVEL:
280 ctx->debug_level = (int)i;
281 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
284 case CAPI_CMD_DEBUG_FILE:
285 ctx->debug_file = BUF_strdup(p);
286 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
289 case CAPI_CMD_KEYTYPE:
291 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
294 case CAPI_CMD_SET_CSP_IDX:
295 ret = capi_ctx_set_provname_idx(ctx, i);
298 case CAPI_CMD_LIST_OPTIONS:
302 case CAPI_CMD_LOOKUP_METHOD:
305 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
308 ctx->lookup_method = i;
311 case CAPI_CMD_SET_CSP_NAME:
312 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
315 case CAPI_CMD_SET_CSP_TYPE:
320 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
329 static RSA_METHOD capi_rsa_method =
331 "CryptoAPI RSA method",
334 capi_rsa_priv_enc, /* priv_enc */
335 capi_rsa_priv_dec, /* priv_dec */
339 capi_rsa_free, /* finish */
340 RSA_FLAG_SIGN_VER, /* flags */
342 capi_rsa_sign, /* rsa_sign */
346 static DSA_METHOD capi_dsa_method =
348 "CryptoAPI DSA method",
349 capi_dsa_do_sign, /* dsa_do_sign */
350 0, /* dsa_sign_setup */
351 0, /* dsa_do_verify */
355 capi_dsa_free, /* finish */
358 0, /* dsa_paramgen */
362 static int capi_init(ENGINE *e)
365 const RSA_METHOD *ossl_rsa_meth;
366 const DSA_METHOD *ossl_dsa_meth;
367 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
369 ctx = capi_ctx_new();
370 if (!ctx || (capi_idx < 0))
373 ENGINE_set_ex_data(e, capi_idx, ctx);
374 /* Setup RSA_METHOD */
375 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
376 ossl_rsa_meth = RSA_PKCS1_SSLeay();
377 capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
378 capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
379 capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
380 capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
382 /* Setup DSA Method */
383 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
384 ossl_dsa_meth = DSA_OpenSSL();
385 capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
386 capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
387 capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
392 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
398 static int capi_destroy(ENGINE *e)
400 ERR_unload_CAPI_strings();
404 static int capi_finish(ENGINE *e)
407 ctx = ENGINE_get_ex_data(e, capi_idx);
409 ENGINE_set_ex_data(e, capi_idx, NULL);
414 /* CryptoAPI key application data. This contains
415 * a handle to the private key container (for sign operations)
416 * and a handle to the key (for decrypt operations).
426 static int bind_capi(ENGINE *e)
428 if (!ENGINE_set_id(e, engine_capi_id)
429 || !ENGINE_set_name(e, engine_capi_name)
430 || !ENGINE_set_init_function(e, capi_init)
431 || !ENGINE_set_finish_function(e, capi_finish)
432 || !ENGINE_set_destroy_function(e, capi_destroy)
433 || !ENGINE_set_RSA(e, &capi_rsa_method)
434 || !ENGINE_set_DSA(e, &capi_dsa_method)
435 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
436 || !ENGINE_set_load_ssl_client_cert_function(e,
437 capi_load_ssl_client_cert)
438 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
439 || !ENGINE_set_ctrl_function(e, capi_ctrl))
441 ERR_load_CAPI_strings();
447 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
448 static int bind_helper(ENGINE *e, const char *id)
450 if(id && (strcmp(id, engine_capi_id) != 0))
456 IMPLEMENT_DYNAMIC_CHECK_FN()
457 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
459 static ENGINE *engine_capi(void)
461 ENGINE *ret = ENGINE_new();
472 void ENGINE_load_capi(void)
474 /* Copied from eng_[openssl|dyn].c */
475 ENGINE *toadd = engine_capi();
484 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
487 /* Reverse buffer in place: since this is a keyblob structure
488 * that will be freed up after conversion anyway it doesn't
489 * matter if we change it.
491 for(i = 0; i < binlen / 2; i++)
495 bin[i] = bin[binlen - i - 1];
496 bin[binlen - i - 1] = c;
499 if (!BN_bin2bn(bin, binlen, bn))
504 /* Given a CAPI_KEY get an EVP_PKEY structure */
506 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
508 unsigned char *pubkey = NULL;
513 EVP_PKEY *ret = NULL;
514 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len))
516 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
521 pubkey = OPENSSL_malloc(len);
526 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len))
528 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
533 bh = (BLOBHEADER *)pubkey;
534 if (bh->bType != PUBLICKEYBLOB)
536 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
539 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX)
543 unsigned char *rsa_modulus;
544 rp = (RSAPUBKEY *)(bh + 1);
545 if (rp->magic != 0x31415352)
548 BIO_snprintf(magstr, 10, "%lx", rp->magic);
549 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
550 ERR_add_error_data(2, "magic=0x", magstr);
553 rsa_modulus = (unsigned char *)(rp + 1);
554 rkey = RSA_new_method(eng);
561 if (!rkey->e || !rkey->n)
564 if (!BN_set_word(rkey->e, rp->pubexp))
567 rsa_modlen = rp->bitlen / 8;
568 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
571 RSA_set_ex_data(rkey, rsa_capi_idx, key);
573 if (!(ret = EVP_PKEY_new()))
576 EVP_PKEY_assign_RSA(ret, rkey);
580 else if (bh->aiKeyAlg == CALG_DSS_SIGN)
585 dp = (DSSPUBKEY *)(bh + 1);
586 if (dp->magic != 0x31535344)
589 BIO_snprintf(magstr, 10, "%lx", dp->magic);
590 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
591 ERR_add_error_data(2, "magic=0x", magstr);
594 dsa_plen = dp->bitlen / 8;
595 btmp = (unsigned char *)(dp + 1);
596 dkey = DSA_new_method(eng);
602 dkey->pub_key = BN_new();
603 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
605 if (!lend_tobn(dkey->p, btmp, dsa_plen))
608 if (!lend_tobn(dkey->q, btmp, 20))
611 if (!lend_tobn(dkey->g, btmp, dsa_plen))
614 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
618 DSA_set_ex_data(dkey, dsa_capi_idx, key);
620 if (!(ret = EVP_PKEY_new()))
623 EVP_PKEY_assign_DSA(ret, dkey);
629 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
630 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
631 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
638 OPENSSL_free(pubkey);
650 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, ERR_R_MALLOC_FAILURE);
655 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
656 UI_METHOD *ui_method, void *callback_data)
661 ctx = ENGINE_get_ex_data(eng, capi_idx);
665 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
669 key = capi_find_key(ctx, key_id);
674 ret = capi_get_pkey(eng, key);
682 /* CryptoAPI RSA operations */
684 int capi_rsa_priv_enc(int flen, const unsigned char *from,
685 unsigned char *to, RSA *rsa, int padding)
687 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
691 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
692 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
702 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
704 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
706 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
709 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
712 /* Convert the signature type to a CryptoAPI algorithm ID */
724 alg = CALG_SSL3_SHAMD5;
729 BIO_snprintf(algstr, 10, "%lx", dtype);
730 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
731 ERR_add_error_data(2, "NID=0x", algstr);
738 /* Create the hash object */
739 if(!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash))
741 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
745 /* Set the hash value to the value passed */
747 if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0))
749 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
755 /* Finally sign it */
756 slen = RSA_size(rsa);
757 if(!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen))
759 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
766 /* Inplace byte reversal of signature */
767 for(i = 0; i < slen / 2; i++)
771 sigret[i] = sigret[slen - i - 1];
772 sigret[slen - i - 1] = c;
780 CryptDestroyHash(hash);
785 int capi_rsa_priv_dec(int flen, const unsigned char *from,
786 unsigned char *to, RSA *rsa, int padding)
789 unsigned char *tmpbuf;
792 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
794 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
797 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
800 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
804 if(padding != RSA_PKCS1_PADDING)
807 BIO_snprintf(errstr, 10, "%d", padding);
808 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
809 ERR_add_error_data(2, "padding=", errstr);
813 /* Create temp reverse order version of input */
814 if(!(tmpbuf = OPENSSL_malloc(flen)) )
816 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
819 for(i = 0; i < flen; i++)
820 tmpbuf[flen - i - 1] = from[i];
822 /* Finally decrypt it */
823 if(!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen))
825 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
827 OPENSSL_free(tmpbuf);
830 else memcpy(to, tmpbuf, flen);
832 OPENSSL_free(tmpbuf);
837 static int capi_rsa_free(RSA *rsa)
840 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
841 capi_free_key(capi_key);
842 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
846 /* CryptoAPI DSA operations */
848 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
856 unsigned char csigbuf[40];
858 ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
860 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
862 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
866 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
872 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
876 /* Create the hash object */
877 if(!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash))
879 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
884 /* Set the hash value to the value passed */
885 if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0))
887 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
893 /* Finally sign it */
894 slen = sizeof(csigbuf);
895 if(!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen))
897 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
908 if (!ret->r || !ret->s)
910 if (!lend_tobn(ret->r, csigbuf, 20)
911 || !lend_tobn(ret->s, csigbuf + 20, 20))
922 OPENSSL_cleanse(csigbuf, 40);
923 CryptDestroyHash(hash);
927 static int capi_dsa_free(DSA *dsa)
930 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
931 capi_free_key(capi_key);
932 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
936 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, va_list argptr)
940 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
942 out = BIO_new_file(ctx->debug_file, "a+");
943 BIO_vprintf(out, format, argptr);
947 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
950 va_start(args, format);
951 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
955 static void capi_addlasterror(void)
957 capi_adderror(GetLastError());
960 static void capi_adderror(DWORD err)
963 BIO_snprintf(errstr, 10, "%lX", err);
964 ERR_add_error_data(2, "Error code= 0x", errstr);
967 static char *wide_to_asc(LPWSTR wstr)
972 str = OPENSSL_malloc(wcslen(wstr) + 1);
975 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
978 sprintf(str, "%S", wstr);
982 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, DWORD idx)
986 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
987 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len))
989 err = GetLastError();
990 if (err == ERROR_NO_MORE_ITEMS)
992 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
996 name = OPENSSL_malloc(len);
997 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len))
999 err = GetLastError();
1000 if (err == ERROR_NO_MORE_ITEMS)
1002 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1007 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name, *ptype);
1012 static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
1016 LPTSTR provname = NULL;
1017 CAPI_trace(ctx, "capi_list_providers\n");
1018 BIO_printf(out, "Available CSPs:\n");
1019 for(idx = 0; ; idx++)
1021 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1026 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1027 OPENSSL_free(provname);
1032 static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
1036 DWORD err, idx, flags, buflen = 0, clen;
1038 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, ctx->csptype);
1039 if (!CryptAcquireContext(&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT))
1041 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1042 capi_addlasterror();
1045 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST))
1047 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1048 capi_addlasterror();
1051 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1054 cname = OPENSSL_malloc(buflen);
1057 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1061 for (idx = 0;;idx++)
1067 flags = CRYPT_FIRST;
1070 if(!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags))
1072 err = GetLastError();
1073 if (err == ERROR_NO_MORE_ITEMS)
1075 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1079 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", cname, clen, idx, flags);
1080 if (!cname[0] && (clen == buflen))
1082 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1085 BIO_printf(out, "%d. %s\n", idx, cname);
1093 OPENSSL_free(cname);
1094 CryptReleaseContext(hprov, 0);
1099 CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1102 CRYPT_KEY_PROV_INFO *pinfo;
1104 if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1106 pinfo = OPENSSL_malloc(len);
1109 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1112 if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len))
1114 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1115 capi_addlasterror();
1116 OPENSSL_free(pinfo);
1122 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, CRYPT_KEY_PROV_INFO *pinfo)
1124 char *provname = NULL, *contname = NULL;
1127 BIO_printf(out, " No Private Key\n");
1130 provname = wide_to_asc(pinfo->pwszProvName);
1131 contname = wide_to_asc(pinfo->pwszContainerName);
1132 if (!provname || !contname)
1135 BIO_printf(out, " Private Key Info:\n");
1136 BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname, pinfo->dwProvType);
1137 BIO_printf(out, " Container Name: %s, Key Type %d\n", contname, pinfo->dwKeySpec);
1140 OPENSSL_free(provname);
1142 OPENSSL_free(contname);
1145 char * capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1150 CAPI_trace(ctx, "capi_cert_get_fname\n");
1151 if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1153 wfname = OPENSSL_malloc(dlen);
1154 if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen))
1156 char *fname = wide_to_asc(wfname);
1157 OPENSSL_free(wfname);
1160 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1161 capi_addlasterror();
1163 OPENSSL_free(wfname);
1168 void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1172 unsigned long flags = ctx->dump_flags;
1173 if (flags & CAPI_DMP_FNAME)
1176 fname = capi_cert_get_fname(ctx, cert);
1179 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1180 OPENSSL_free(fname);
1183 BIO_printf(out, " <No Friendly Name>\n");
1186 p = cert->pbCertEncoded;
1187 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1189 BIO_printf(out, " <Can't parse certificate>\n");
1190 if (flags & CAPI_DMP_SUMMARY)
1192 BIO_printf(out, " Subject: ");
1193 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1194 BIO_printf(out, "\n Issuer: ");
1195 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1196 BIO_printf(out, "\n");
1198 if (flags & CAPI_DMP_FULL)
1199 X509_print_ex(out, x, XN_FLAG_ONELINE,0);
1201 if (flags & CAPI_DMP_PKEYINFO)
1203 CRYPT_KEY_PROV_INFO *pinfo;
1204 pinfo = capi_get_prov_info(ctx, cert);
1205 capi_dump_prov_info(ctx, out, pinfo);
1207 OPENSSL_free(pinfo);
1210 if (flags & CAPI_DMP_PEM)
1211 PEM_write_bio_X509(out, x);
1215 HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1220 storename = ctx->storename;
1223 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1225 hstore = CertOpenSystemStore(0, storename);
1228 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1229 capi_addlasterror();
1234 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1240 PCCERT_CONTEXT cert = NULL;
1242 storename = ctx->storename;
1245 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1247 hstore = capi_open_store(ctx, storename);
1252 cert = capi_find_cert(ctx, id, hstore);
1258 capi_dump_cert(ctx, out, cert);
1259 CertFreeCertificateContext(cert);
1265 LPWSTR fname = NULL;
1266 cert = CertEnumCertificatesInStore(hstore, cert);
1269 BIO_printf(out, "Certificate %d\n", idx);
1270 capi_dump_cert(ctx, out, cert);
1274 CertCloseStore(hstore, 0);
1278 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore)
1280 PCCERT_CONTEXT cert = NULL;
1283 switch(ctx->lookup_method)
1285 case CAPI_LU_SUBSTR:
1286 return CertFindCertificateInStore(hstore,
1287 X509_ASN_ENCODING, 0,
1288 CERT_FIND_SUBJECT_STR_A, id, NULL);
1292 cert = CertEnumCertificatesInStore(hstore, cert);
1295 fname = capi_cert_get_fname(ctx, cert);
1298 if (strcmp(fname, id))
1302 OPENSSL_free(fname);
1312 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec)
1315 key = OPENSSL_malloc(sizeof(CAPI_KEY));
1316 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1317 contname, provname, ptype);
1318 if (!CryptAcquireContext(&key->hprov, contname, provname, ptype, 0))
1320 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1321 capi_addlasterror();
1324 if (!CryptGetUserKey(key->hprov, keyspec, &key->key))
1326 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1327 capi_addlasterror();
1328 CryptReleaseContext(key->hprov, 0);
1331 key->keyspec = keyspec;
1339 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1342 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1343 char *provname = NULL, *contname = NULL;
1344 pinfo = capi_get_prov_info(ctx, cert);
1347 provname = wide_to_asc(pinfo->pwszProvName);
1348 contname = wide_to_asc(pinfo->pwszContainerName);
1349 if (!provname || !contname)
1352 key = capi_get_key(ctx, contname, provname,
1353 pinfo->dwProvType, pinfo->dwKeySpec);
1357 OPENSSL_free(pinfo);
1359 OPENSSL_free(provname);
1361 OPENSSL_free(contname);
1365 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1367 PCCERT_CONTEXT cert;
1369 CAPI_KEY *key = NULL;
1370 switch (ctx->lookup_method)
1372 case CAPI_LU_SUBSTR:
1374 hstore = capi_open_store(ctx, NULL);
1377 cert = capi_find_cert(ctx, id, hstore);
1380 key = capi_get_cert_key(ctx, cert);
1381 CertFreeCertificateContext(cert);
1383 CertCloseStore(hstore, 0);
1386 case CAPI_LU_CONTNAME:
1387 key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype,
1395 void capi_free_key(CAPI_KEY *key)
1399 CryptDestroyKey(key->key);
1400 CryptReleaseContext(key->hprov, 0);
1405 /* Initialize a CAPI_CTX structure */
1407 static CAPI_CTX *capi_ctx_new()
1410 ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1413 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1416 ctx->cspname = NULL;
1417 ctx->csptype = PROV_RSA_FULL;
1418 ctx->dump_flags = CAPI_DMP_SUMMARY|CAPI_DMP_FNAME;
1419 ctx->keytype = AT_KEYEXCHANGE;
1420 ctx->storename = NULL;
1421 ctx->ssl_client_store = NULL;
1422 ctx->lookup_method = CAPI_LU_SUBSTR;
1423 ctx->debug_level = 0;
1424 ctx->debug_file = NULL;
1428 static void capi_ctx_free(CAPI_CTX *ctx)
1430 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1434 OPENSSL_free(ctx->cspname);
1435 if (ctx->debug_file)
1436 OPENSSL_free(ctx->debug_file);
1438 OPENSSL_free(ctx->storename);
1439 if (ctx->ssl_client_store)
1440 OPENSSL_free(ctx->ssl_client_store);
1444 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check)
1446 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1450 if (!CryptAcquireContext(&hprov, NULL, pname, type,
1451 CRYPT_VERIFYCONTEXT))
1453 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1454 capi_addlasterror();
1457 CryptReleaseContext(hprov, 0);
1459 ctx->cspname = BUF_strdup(pname);
1460 ctx->csptype = type;
1464 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1468 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1470 return capi_ctx_set_provname(ctx, pname, type, 0);
1473 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1477 /* Special case: empty list: match anything */
1478 if (sk_X509_NAME_num(ca_dn) <= 0)
1480 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++)
1482 nm = sk_X509_NAME_value(ca_dn, i);
1483 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1489 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1490 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
1491 STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data)
1494 /* For now just one matching key/cert */
1495 STACK_OF(X509) *certs = NULL;
1496 STACK_OF(EVP_PKEY) *keys = NULL;
1504 PCCERT_CONTEXT cert = NULL;
1506 ctx = ENGINE_get_ex_data(e, capi_idx);
1511 storename = ctx->ssl_client_store;
1515 hstore = capi_open_store(ctx, storename);
1518 /* Enumerate all certificates looking for a match */
1519 for(i = 0;!*pcert;i++)
1521 cert = CertEnumCertificatesInStore(hstore, cert);
1524 p = cert->pbCertEncoded;
1525 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1528 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1531 if (cert_issuer_match(ca_dn, x))
1533 CAPI_KEY *key = capi_get_cert_key(ctx, cert);
1536 pk = capi_get_pkey(e, key);
1551 CertFreeCertificateContext(cert);