2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
57 #include <openssl/crypto.h>
58 #include <openssl/buffer.h>
59 #include <openssl/engine.h>
60 #include <openssl/rsa.h>
61 #include <openssl/bn.h>
62 #include <openssl/pem.h>
64 #ifdef OPENSSL_SYS_WIN32
65 #ifndef OPENSSL_NO_CAPIENG
68 #define _WIN32_WINNT 0x400
76 #include "e_capi_err.h"
77 #include "e_capi_err.c"
80 static const char *engine_capi_id = "capi";
81 static const char *engine_capi_name = "CryptoAPI ENGINE";
83 typedef struct CAPI_CTX_st CAPI_CTX;
84 typedef struct CAPI_KEY_st CAPI_KEY;
86 static void capi_addlasterror(void);
87 static void capi_adderror(DWORD err);
89 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
91 static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
92 static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
93 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
94 void capi_free_key(CAPI_KEY *key);
96 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore);
98 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
100 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
101 UI_METHOD *ui_method, void *callback_data);
102 static int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
103 unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
104 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
105 unsigned char *to, RSA *rsa, int padding);
106 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
107 unsigned char *to, RSA *rsa, int padding);
108 static int capi_rsa_free(RSA *rsa);
110 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
112 static int capi_dsa_free(DSA *dsa);
114 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
115 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
116 STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data);
118 /* This structure contains CAPI ENGINE specific data:
119 * it contains various global options and affects how
120 * other functions behave.
123 #define CAPI_DBG_TRACE 2
124 #define CAPI_DBG_ERROR 1
129 /* Parameters to use for container lookup */
133 /* Certificate store name to use */
135 LPTSTR ssl_client_store;
137 /* Lookup string meanings in load_private_key */
138 /* Substring of subject: uses "storename" */
139 #define CAPI_LU_SUBSTR 0
140 /* Friendly name: uses storename */
141 #define CAPI_LU_FNAME 1
142 /* Container name: uses cspname, keytype */
143 #define CAPI_LU_CONTNAME 2
145 /* Info to dump with dumpcerts option */
146 /* Issuer and serial name strings */
147 #define CAPI_DMP_SUMMARY 0x1
149 #define CAPI_DMP_FNAME 0x2
150 /* Full X509_print dump */
151 #define CAPI_DMP_FULL 0x4
152 /* Dump PEM format certificate */
153 #define CAPI_DMP_PEM 0x8
154 /* Dump pseudo key (if possible) */
155 #define CAPI_DMP_PSKEY 0x10
156 /* Dump key info (if possible) */
157 #define CAPI_DMP_PKEYINFO 0x20
163 static CAPI_CTX *capi_ctx_new();
164 static void capi_ctx_free(CAPI_CTX *ctx);
165 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check);
166 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
168 #define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
169 #define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
170 #define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
171 #define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
172 #define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
173 #define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
174 #define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
175 #define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
176 #define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
177 #define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
178 #define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
179 #define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
180 #define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
182 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
183 {CAPI_CMD_LIST_CERTS,
185 "List all certificates in store",
186 ENGINE_CMD_FLAG_NO_INPUT},
187 {CAPI_CMD_LOOKUP_CERT,
189 "Lookup and output certificates",
190 ENGINE_CMD_FLAG_STRING},
191 {CAPI_CMD_DEBUG_LEVEL,
193 "debug level (1=errors, 2=trace)",
194 ENGINE_CMD_FLAG_NUMERIC},
195 {CAPI_CMD_DEBUG_FILE,
197 "debugging filename)",
198 ENGINE_CMD_FLAG_STRING},
201 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
202 ENGINE_CMD_FLAG_NUMERIC},
206 ENGINE_CMD_FLAG_NO_INPUT},
207 {CAPI_CMD_SET_CSP_IDX,
210 ENGINE_CMD_FLAG_NUMERIC},
211 {CAPI_CMD_SET_CSP_NAME,
213 "Set CSP name, (default CSP used if not specified)",
214 ENGINE_CMD_FLAG_STRING},
215 {CAPI_CMD_SET_CSP_TYPE,
217 "Set CSP type, (default RSA_PROV_FULL)",
218 ENGINE_CMD_FLAG_NUMERIC},
219 {CAPI_CMD_LIST_CONTAINERS,
221 "list container names",
222 ENGINE_CMD_FLAG_NO_INPUT},
223 {CAPI_CMD_LIST_OPTIONS,
225 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
226 "32=private key info)",
227 ENGINE_CMD_FLAG_NUMERIC},
228 {CAPI_CMD_LOOKUP_METHOD,
230 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
231 ENGINE_CMD_FLAG_NUMERIC},
232 {CAPI_CMD_STORE_NAME,
234 "certificate store name, default \"MY\"",
235 ENGINE_CMD_FLAG_STRING},
240 static int capi_idx = -1;
241 static int rsa_capi_idx = -1;
242 static int dsa_capi_idx = -1;
243 static int cert_capi_idx = -1;
245 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
252 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
255 ctx = ENGINE_get_ex_data(e, capi_idx);
256 out = BIO_new_fp(stdout, BIO_NOCLOSE);
259 case CAPI_CMD_LIST_CSPS:
260 ret = capi_list_providers(ctx, out);
263 case CAPI_CMD_LIST_CERTS:
264 ret = capi_list_certs(ctx, out, NULL);
267 case CAPI_CMD_LOOKUP_CERT:
268 ret = capi_list_certs(ctx, out, p);
271 case CAPI_CMD_LIST_CONTAINERS:
272 ret = capi_list_containers(ctx, out);
275 case CAPI_CMD_STORE_NAME:
277 OPENSSL_free(ctx->storename);
278 ctx->storename = BUF_strdup(p);
279 CAPI_trace(ctx, "Setting store name to %s\n", p);
282 case CAPI_CMD_DEBUG_LEVEL:
283 ctx->debug_level = (int)i;
284 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
287 case CAPI_CMD_DEBUG_FILE:
288 ctx->debug_file = BUF_strdup(p);
289 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
292 case CAPI_CMD_KEYTYPE:
294 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
297 case CAPI_CMD_SET_CSP_IDX:
298 ret = capi_ctx_set_provname_idx(ctx, i);
301 case CAPI_CMD_LIST_OPTIONS:
305 case CAPI_CMD_LOOKUP_METHOD:
308 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
311 ctx->lookup_method = i;
314 case CAPI_CMD_SET_CSP_NAME:
315 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
318 case CAPI_CMD_SET_CSP_TYPE:
323 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
332 static RSA_METHOD capi_rsa_method =
334 "CryptoAPI RSA method",
337 capi_rsa_priv_enc, /* priv_enc */
338 capi_rsa_priv_dec, /* priv_dec */
342 capi_rsa_free, /* finish */
343 RSA_FLAG_SIGN_VER, /* flags */
345 capi_rsa_sign, /* rsa_sign */
349 static DSA_METHOD capi_dsa_method =
351 "CryptoAPI DSA method",
352 capi_dsa_do_sign, /* dsa_do_sign */
353 0, /* dsa_sign_setup */
354 0, /* dsa_do_verify */
358 capi_dsa_free, /* finish */
361 0, /* dsa_paramgen */
365 static int capi_init(ENGINE *e)
368 const RSA_METHOD *ossl_rsa_meth;
369 const DSA_METHOD *ossl_dsa_meth;
370 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
371 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
373 ctx = capi_ctx_new();
374 if (!ctx || (capi_idx < 0))
377 ENGINE_set_ex_data(e, capi_idx, ctx);
378 /* Setup RSA_METHOD */
379 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
380 ossl_rsa_meth = RSA_PKCS1_SSLeay();
381 capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
382 capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
383 capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
384 capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
386 /* Setup DSA Method */
387 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
388 ossl_dsa_meth = DSA_OpenSSL();
389 capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
390 capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
391 capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
396 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
402 static int capi_destroy(ENGINE *e)
404 ERR_unload_CAPI_strings();
408 static int capi_finish(ENGINE *e)
411 ctx = ENGINE_get_ex_data(e, capi_idx);
413 ENGINE_set_ex_data(e, capi_idx, NULL);
418 /* CryptoAPI key application data. This contains
419 * a handle to the private key container (for sign operations)
420 * and a handle to the key (for decrypt operations).
425 /* Associated certificate context (if any) */
432 static int bind_capi(ENGINE *e)
434 if (!ENGINE_set_id(e, engine_capi_id)
435 || !ENGINE_set_name(e, engine_capi_name)
436 || !ENGINE_set_init_function(e, capi_init)
437 || !ENGINE_set_finish_function(e, capi_finish)
438 || !ENGINE_set_destroy_function(e, capi_destroy)
439 || !ENGINE_set_RSA(e, &capi_rsa_method)
440 || !ENGINE_set_DSA(e, &capi_dsa_method)
441 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
442 || !ENGINE_set_load_ssl_client_cert_function(e,
443 capi_load_ssl_client_cert)
444 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
445 || !ENGINE_set_ctrl_function(e, capi_ctrl))
447 ERR_load_CAPI_strings();
453 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
454 static int bind_helper(ENGINE *e, const char *id)
456 if(id && (strcmp(id, engine_capi_id) != 0))
462 IMPLEMENT_DYNAMIC_CHECK_FN()
463 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
465 static ENGINE *engine_capi(void)
467 ENGINE *ret = ENGINE_new();
478 void ENGINE_load_capi(void)
480 /* Copied from eng_[openssl|dyn].c */
481 ENGINE *toadd = engine_capi();
490 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
493 /* Reverse buffer in place: since this is a keyblob structure
494 * that will be freed up after conversion anyway it doesn't
495 * matter if we change it.
497 for(i = 0; i < binlen / 2; i++)
501 bin[i] = bin[binlen - i - 1];
502 bin[binlen - i - 1] = c;
505 if (!BN_bin2bn(bin, binlen, bn))
510 /* Given a CAPI_KEY get an EVP_PKEY structure */
512 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
514 unsigned char *pubkey = NULL;
519 EVP_PKEY *ret = NULL;
520 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len))
522 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
527 pubkey = OPENSSL_malloc(len);
532 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len))
534 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
539 bh = (BLOBHEADER *)pubkey;
540 if (bh->bType != PUBLICKEYBLOB)
542 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
545 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX)
549 unsigned char *rsa_modulus;
550 rp = (RSAPUBKEY *)(bh + 1);
551 if (rp->magic != 0x31415352)
554 BIO_snprintf(magstr, 10, "%lx", rp->magic);
555 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
556 ERR_add_error_data(2, "magic=0x", magstr);
559 rsa_modulus = (unsigned char *)(rp + 1);
560 rkey = RSA_new_method(eng);
567 if (!rkey->e || !rkey->n)
570 if (!BN_set_word(rkey->e, rp->pubexp))
573 rsa_modlen = rp->bitlen / 8;
574 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
577 RSA_set_ex_data(rkey, rsa_capi_idx, key);
579 if (!(ret = EVP_PKEY_new()))
582 EVP_PKEY_assign_RSA(ret, rkey);
586 else if (bh->aiKeyAlg == CALG_DSS_SIGN)
591 dp = (DSSPUBKEY *)(bh + 1);
592 if (dp->magic != 0x31535344)
595 BIO_snprintf(magstr, 10, "%lx", dp->magic);
596 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
597 ERR_add_error_data(2, "magic=0x", magstr);
600 dsa_plen = dp->bitlen / 8;
601 btmp = (unsigned char *)(dp + 1);
602 dkey = DSA_new_method(eng);
608 dkey->pub_key = BN_new();
609 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
611 if (!lend_tobn(dkey->p, btmp, dsa_plen))
614 if (!lend_tobn(dkey->q, btmp, 20))
617 if (!lend_tobn(dkey->g, btmp, dsa_plen))
620 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
624 DSA_set_ex_data(dkey, dsa_capi_idx, key);
626 if (!(ret = EVP_PKEY_new()))
629 EVP_PKEY_assign_DSA(ret, dkey);
635 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
636 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
637 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
644 OPENSSL_free(pubkey);
656 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, ERR_R_MALLOC_FAILURE);
661 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
662 UI_METHOD *ui_method, void *callback_data)
667 ctx = ENGINE_get_ex_data(eng, capi_idx);
671 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
675 key = capi_find_key(ctx, key_id);
680 ret = capi_get_pkey(eng, key);
688 /* CryptoAPI RSA operations */
690 int capi_rsa_priv_enc(int flen, const unsigned char *from,
691 unsigned char *to, RSA *rsa, int padding)
693 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
697 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
698 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
708 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
710 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
712 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
715 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
718 /* Convert the signature type to a CryptoAPI algorithm ID */
730 alg = CALG_SSL3_SHAMD5;
735 BIO_snprintf(algstr, 10, "%lx", dtype);
736 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
737 ERR_add_error_data(2, "NID=0x", algstr);
744 /* Create the hash object */
745 if(!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash))
747 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
751 /* Set the hash value to the value passed */
753 if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0))
755 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
761 /* Finally sign it */
762 slen = RSA_size(rsa);
763 if(!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen))
765 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
772 /* Inplace byte reversal of signature */
773 for(i = 0; i < slen / 2; i++)
777 sigret[i] = sigret[slen - i - 1];
778 sigret[slen - i - 1] = c;
786 CryptDestroyHash(hash);
791 int capi_rsa_priv_dec(int flen, const unsigned char *from,
792 unsigned char *to, RSA *rsa, int padding)
795 unsigned char *tmpbuf;
798 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
800 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
803 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
806 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
810 if(padding != RSA_PKCS1_PADDING)
813 BIO_snprintf(errstr, 10, "%d", padding);
814 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
815 ERR_add_error_data(2, "padding=", errstr);
819 /* Create temp reverse order version of input */
820 if(!(tmpbuf = OPENSSL_malloc(flen)) )
822 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
825 for(i = 0; i < flen; i++)
826 tmpbuf[flen - i - 1] = from[i];
828 /* Finally decrypt it */
829 if(!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen))
831 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
833 OPENSSL_free(tmpbuf);
836 else memcpy(to, tmpbuf, flen);
838 OPENSSL_free(tmpbuf);
843 static int capi_rsa_free(RSA *rsa)
846 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
847 capi_free_key(capi_key);
848 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
852 /* CryptoAPI DSA operations */
854 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
862 unsigned char csigbuf[40];
864 ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
866 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
868 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
872 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
878 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
882 /* Create the hash object */
883 if(!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash))
885 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
890 /* Set the hash value to the value passed */
891 if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0))
893 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
899 /* Finally sign it */
900 slen = sizeof(csigbuf);
901 if(!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen))
903 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
914 if (!ret->r || !ret->s)
916 if (!lend_tobn(ret->r, csigbuf, 20)
917 || !lend_tobn(ret->s, csigbuf + 20, 20))
928 OPENSSL_cleanse(csigbuf, 40);
929 CryptDestroyHash(hash);
933 static int capi_dsa_free(DSA *dsa)
936 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
937 capi_free_key(capi_key);
938 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
942 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, va_list argptr)
946 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
948 out = BIO_new_file(ctx->debug_file, "a+");
949 BIO_vprintf(out, format, argptr);
953 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
956 va_start(args, format);
957 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
961 static void capi_addlasterror(void)
963 capi_adderror(GetLastError());
966 static void capi_adderror(DWORD err)
969 BIO_snprintf(errstr, 10, "%lX", err);
970 ERR_add_error_data(2, "Error code= 0x", errstr);
973 static char *wide_to_asc(LPWSTR wstr)
978 str = OPENSSL_malloc(wcslen(wstr) + 1);
981 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
984 sprintf(str, "%S", wstr);
988 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, DWORD idx)
992 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
993 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len))
995 err = GetLastError();
996 if (err == ERROR_NO_MORE_ITEMS)
998 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1002 name = OPENSSL_malloc(len);
1003 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len))
1005 err = GetLastError();
1006 if (err == ERROR_NO_MORE_ITEMS)
1008 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1013 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name, *ptype);
1018 static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
1022 LPTSTR provname = NULL;
1023 CAPI_trace(ctx, "capi_list_providers\n");
1024 BIO_printf(out, "Available CSPs:\n");
1025 for(idx = 0; ; idx++)
1027 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1032 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1033 OPENSSL_free(provname);
1038 static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
1042 DWORD err, idx, flags, buflen = 0, clen;
1044 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, ctx->csptype);
1045 if (!CryptAcquireContext(&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT))
1047 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1048 capi_addlasterror();
1051 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST))
1053 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1054 capi_addlasterror();
1057 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1060 cname = OPENSSL_malloc(buflen);
1063 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1067 for (idx = 0;;idx++)
1073 flags = CRYPT_FIRST;
1076 if(!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags))
1078 err = GetLastError();
1079 if (err == ERROR_NO_MORE_ITEMS)
1081 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1085 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", cname, clen, idx, flags);
1086 if (!cname[0] && (clen == buflen))
1088 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1091 BIO_printf(out, "%d. %s\n", idx, cname);
1099 OPENSSL_free(cname);
1100 CryptReleaseContext(hprov, 0);
1105 CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1108 CRYPT_KEY_PROV_INFO *pinfo;
1110 if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1112 pinfo = OPENSSL_malloc(len);
1115 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1118 if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len))
1120 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1121 capi_addlasterror();
1122 OPENSSL_free(pinfo);
1128 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, CRYPT_KEY_PROV_INFO *pinfo)
1130 char *provname = NULL, *contname = NULL;
1133 BIO_printf(out, " No Private Key\n");
1136 provname = wide_to_asc(pinfo->pwszProvName);
1137 contname = wide_to_asc(pinfo->pwszContainerName);
1138 if (!provname || !contname)
1141 BIO_printf(out, " Private Key Info:\n");
1142 BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname, pinfo->dwProvType);
1143 BIO_printf(out, " Container Name: %s, Key Type %d\n", contname, pinfo->dwKeySpec);
1146 OPENSSL_free(provname);
1148 OPENSSL_free(contname);
1151 char * capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1156 CAPI_trace(ctx, "capi_cert_get_fname\n");
1157 if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1159 wfname = OPENSSL_malloc(dlen);
1160 if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen))
1162 char *fname = wide_to_asc(wfname);
1163 OPENSSL_free(wfname);
1166 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1167 capi_addlasterror();
1169 OPENSSL_free(wfname);
1174 void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1178 unsigned long flags = ctx->dump_flags;
1179 if (flags & CAPI_DMP_FNAME)
1182 fname = capi_cert_get_fname(ctx, cert);
1185 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1186 OPENSSL_free(fname);
1189 BIO_printf(out, " <No Friendly Name>\n");
1192 p = cert->pbCertEncoded;
1193 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1195 BIO_printf(out, " <Can't parse certificate>\n");
1196 if (flags & CAPI_DMP_SUMMARY)
1198 BIO_printf(out, " Subject: ");
1199 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1200 BIO_printf(out, "\n Issuer: ");
1201 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1202 BIO_printf(out, "\n");
1204 if (flags & CAPI_DMP_FULL)
1205 X509_print_ex(out, x, XN_FLAG_ONELINE,0);
1207 if (flags & CAPI_DMP_PKEYINFO)
1209 CRYPT_KEY_PROV_INFO *pinfo;
1210 pinfo = capi_get_prov_info(ctx, cert);
1211 capi_dump_prov_info(ctx, out, pinfo);
1213 OPENSSL_free(pinfo);
1216 if (flags & CAPI_DMP_PEM)
1217 PEM_write_bio_X509(out, x);
1221 HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1226 storename = ctx->storename;
1229 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1231 hstore = CertOpenSystemStore(0, storename);
1234 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1235 capi_addlasterror();
1240 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1246 PCCERT_CONTEXT cert = NULL;
1248 storename = ctx->storename;
1251 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1253 hstore = capi_open_store(ctx, storename);
1258 cert = capi_find_cert(ctx, id, hstore);
1264 capi_dump_cert(ctx, out, cert);
1265 CertFreeCertificateContext(cert);
1271 LPWSTR fname = NULL;
1272 cert = CertEnumCertificatesInStore(hstore, cert);
1275 BIO_printf(out, "Certificate %d\n", idx);
1276 capi_dump_cert(ctx, out, cert);
1280 CertCloseStore(hstore, 0);
1284 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore)
1286 PCCERT_CONTEXT cert = NULL;
1289 switch(ctx->lookup_method)
1291 case CAPI_LU_SUBSTR:
1292 return CertFindCertificateInStore(hstore,
1293 X509_ASN_ENCODING, 0,
1294 CERT_FIND_SUBJECT_STR_A, id, NULL);
1298 cert = CertEnumCertificatesInStore(hstore, cert);
1301 fname = capi_cert_get_fname(ctx, cert);
1304 if (strcmp(fname, id))
1308 OPENSSL_free(fname);
1318 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec)
1321 key = OPENSSL_malloc(sizeof(CAPI_KEY));
1322 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1323 contname, provname, ptype);
1324 if (!CryptAcquireContext(&key->hprov, contname, provname, ptype, 0))
1326 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1327 capi_addlasterror();
1330 if (!CryptGetUserKey(key->hprov, keyspec, &key->key))
1332 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1333 capi_addlasterror();
1334 CryptReleaseContext(key->hprov, 0);
1337 key->keyspec = keyspec;
1346 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1349 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1350 char *provname = NULL, *contname = NULL;
1351 pinfo = capi_get_prov_info(ctx, cert);
1354 provname = wide_to_asc(pinfo->pwszProvName);
1355 contname = wide_to_asc(pinfo->pwszContainerName);
1356 if (!provname || !contname)
1359 key = capi_get_key(ctx, contname, provname,
1360 pinfo->dwProvType, pinfo->dwKeySpec);
1364 OPENSSL_free(pinfo);
1366 OPENSSL_free(provname);
1368 OPENSSL_free(contname);
1372 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1374 PCCERT_CONTEXT cert;
1376 CAPI_KEY *key = NULL;
1377 switch (ctx->lookup_method)
1379 case CAPI_LU_SUBSTR:
1381 hstore = capi_open_store(ctx, NULL);
1384 cert = capi_find_cert(ctx, id, hstore);
1387 key = capi_get_cert_key(ctx, cert);
1388 CertFreeCertificateContext(cert);
1390 CertCloseStore(hstore, 0);
1393 case CAPI_LU_CONTNAME:
1394 key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype,
1402 void capi_free_key(CAPI_KEY *key)
1406 CryptDestroyKey(key->key);
1407 CryptReleaseContext(key->hprov, 0);
1409 CertFreeCertificateContext(key->pcert);
1414 /* Initialize a CAPI_CTX structure */
1416 static CAPI_CTX *capi_ctx_new()
1419 ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1422 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1425 ctx->cspname = NULL;
1426 ctx->csptype = PROV_RSA_FULL;
1427 ctx->dump_flags = CAPI_DMP_SUMMARY|CAPI_DMP_FNAME;
1428 ctx->keytype = AT_KEYEXCHANGE;
1429 ctx->storename = NULL;
1430 ctx->ssl_client_store = NULL;
1431 ctx->lookup_method = CAPI_LU_SUBSTR;
1432 ctx->debug_level = 0;
1433 ctx->debug_file = NULL;
1437 static void capi_ctx_free(CAPI_CTX *ctx)
1439 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1443 OPENSSL_free(ctx->cspname);
1444 if (ctx->debug_file)
1445 OPENSSL_free(ctx->debug_file);
1447 OPENSSL_free(ctx->storename);
1448 if (ctx->ssl_client_store)
1449 OPENSSL_free(ctx->ssl_client_store);
1453 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check)
1455 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1459 if (!CryptAcquireContext(&hprov, NULL, pname, type,
1460 CRYPT_VERIFYCONTEXT))
1462 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1463 capi_addlasterror();
1466 CryptReleaseContext(hprov, 0);
1468 ctx->cspname = BUF_strdup(pname);
1469 ctx->csptype = type;
1473 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1477 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1479 return capi_ctx_set_provname(ctx, pname, type, 0);
1482 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1486 /* Special case: empty list: match anything */
1487 if (sk_X509_NAME_num(ca_dn) <= 0)
1489 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++)
1491 nm = sk_X509_NAME_value(ca_dn, i);
1492 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1498 static int client_cert_select(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1500 fprintf(stderr, "%d certificates\n", sk_X509_num(certs));
1504 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1505 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
1506 STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data)
1508 STACK_OF(X509) *certs = NULL;
1512 int i, client_cert_idx;
1514 PCCERT_CONTEXT cert = NULL, excert = NULL;
1517 ctx = ENGINE_get_ex_data(e, capi_idx);
1522 storename = ctx->ssl_client_store;
1526 hstore = capi_open_store(ctx, storename);
1529 /* Enumerate all certificates looking for a match */
1532 cert = CertEnumCertificatesInStore(hstore, cert);
1535 p = cert->pbCertEncoded;
1536 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1539 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1542 if (cert_issuer_match(ca_dn, x))
1544 key = capi_get_cert_key(ctx, cert);
1547 excert = CertDuplicateCertificateContext(cert);
1548 X509_set_ex_data(x, cert_capi_idx, key);
1551 certs = sk_X509_new_null();
1553 sk_X509_push(certs, x);
1555 pk = capi_get_pkey(e, key);
1571 CertFreeCertificateContext(cert);
1576 client_cert_idx = client_cert_select(e, ssl, certs);
1578 for(i = 0; i < sk_X509_num(certs); i++)
1580 x = sk_X509_value(certs, i);
1581 if (i == client_cert_idx)
1585 key = X509_get_ex_data(x, cert_capi_idx);
1591 sk_X509_free(certs);
1596 key = X509_get_ex_data(*pcert, cert_capi_idx);
1597 *pkey = capi_get_pkey(e, key);
1598 X509_set_ex_data(*pcert, cert_capi_idx, NULL);