2 * Copyright (c) 2008 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 /* Windows crypto provider plugin, sample */
48 static HCRYPTPROV hCryptProv = NULL;
59 generic_cbc_do_cipher(EVP_CIPHER_CTX *ctx,
61 const unsigned char *in,
64 struct generic_key *gk = ctx->cipher_data;
68 bResult = CryptSetKeyParam(gk->hKey, KP_IV, ctx->iv, 0);
71 memcpy(out, in, size);
74 bResult = CryptEncrypt(gk->hKey, 0, TRUE, 0, out, &length, size);
76 bResult = CryptDecrypt(gk->hKey, 0, TRUE, 0, out, &length);
83 generic_cleanup(EVP_CIPHER_CTX *ctx)
85 struct generic_key *gk = ctx->cipher_data;
86 CryptDestroyKey(gk->hKey);
92 import_key(int alg, const unsigned char *key, size_t keylen)
99 size_t bloblen = sizeof(*key_blob) - 1 + keylen;
101 key_blob = malloc(bloblen);
103 key_blob->hdr.bType = PLAINTEXTKEYBLOB;
104 key_blob->hdr.bVersion = CUR_BLOB_VERSION;
105 key_blob->hdr.reserved = 0;
106 key_blob->hdr.aiKeyAlg = alg;
108 memcpy(key_blob->key, key, keylen);
110 bResult = CryptImportKey(hCryptProv,
111 (void *)key_blob, bloblen, 0, 0,
120 crypto_des_ede3_cbc_init(EVP_CIPHER_CTX *ctx,
121 const unsigned char * key,
122 const unsigned char * iv,
125 struct generic_key *gk = ctx->cipher_data;
128 gk->hKey = import_key(CALG_3DES,
129 key->key->keyvalue.data,
130 key->key->keyvalue.len);
136 * The triple DES cipher type (Micrsoft crypt provider)
138 * @return the DES-EDE3-CBC EVP_CIPHER pointer.
140 * @ingroup hcrypto_evp
144 EVP_wincrypt_des_ede3_cbc(void)
146 static const EVP_CIPHER des_ede3_cbc = {
152 crypto_des_ede3_cbc_init,
153 generic_cbc_do_cipher,
155 sizeof(struct generic_key),
161 return &des_ede3_cbc;
168 struct generic_hash {
173 crypto_md5_init(struct generic_hash *m);
176 bResult = CryptCreateHash(hCryptProv, CALG_MD5, 0, 0, &m->hHash);
181 generic_hash_update (struct generic_hash *m, const void *p, size_t len)
184 bResult = CryptHashData(m->hHash, data, ( DWORD )len, 0 );
189 generic_hash_final (void *res, struct generic_hash *m);
193 bResult = CryptGetHashParam(m->hHash, HP_HASHVAL, res, &length, 0)
198 generic_hash_cleanup(struct generic_hash *m)
200 CryptDestroyHash(m->hHash);
205 EVP_wincrypt_md5(void)
207 static const struct hc_evp_md md5 = {
210 sizeof(struct generic_hash),
211 (hc_evp_md_init)crypto_md5_init,
212 (hc_evp_md_update)generic_hash_update,
213 (hc_evp_md_final)generic_hash_final,
214 (hc_evp_md_cleanup)generic_hash_cleanup