#include <stdio.h>
#include <stdlib.h>
+#include "cryptlib.h"
#include <openssl/x509.h>
#include <openssl/evp.h>
-#include "cryptlib.h"
/* PKCS#5 v1.5 compatible PBE functions: see PKCS#5 v2.0 for more info.
*/
void PKCS5_PBE_add(void)
{
-#ifndef NO_DES
+#ifndef OPENSSL_NO_DES
+# ifndef OPENSSL_NO_MD5
EVP_PBE_alg_add(NID_pbeWithMD5AndDES_CBC, EVP_des_cbc(), EVP_md5(),
PKCS5_PBE_keyivgen);
+# endif
+# ifndef OPENSSL_NO_MD2
EVP_PBE_alg_add(NID_pbeWithMD2AndDES_CBC, EVP_des_cbc(), EVP_md2(),
PKCS5_PBE_keyivgen);
+# endif
+# ifndef OPENSSL_NO_SHA
EVP_PBE_alg_add(NID_pbeWithSHA1AndDES_CBC, EVP_des_cbc(), EVP_sha1(),
PKCS5_PBE_keyivgen);
+# endif
#endif
-#ifndef NO_RC2
+#ifndef OPENSSL_NO_RC2
+# ifndef OPENSSL_NO_MD5
EVP_PBE_alg_add(NID_pbeWithMD5AndRC2_CBC, EVP_rc2_64_cbc(), EVP_md5(),
PKCS5_PBE_keyivgen);
+# endif
+# ifndef OPENSSL_NO_MD2
EVP_PBE_alg_add(NID_pbeWithMD2AndRC2_CBC, EVP_rc2_64_cbc(), EVP_md2(),
PKCS5_PBE_keyivgen);
+# endif
+# ifndef OPENSSL_NO_SHA
EVP_PBE_alg_add(NID_pbeWithSHA1AndRC2_CBC, EVP_rc2_64_cbc(), EVP_sha1(),
PKCS5_PBE_keyivgen);
+# endif
#endif
+#ifndef OPENSSL_NO_HMAC
EVP_PBE_alg_add(NID_pbes2, NULL, NULL, PKCS5_v2_PBE_keyivgen);
+#endif
}
int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen,
- ASN1_TYPE *param, EVP_CIPHER *cipher, EVP_MD *md,
+ ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md,
int en_de)
{
EVP_MD_CTX ctx;
int i;
PBEPARAM *pbe;
int saltlen, iter;
- unsigned char *salt, *pbuf;
+ unsigned char *salt;
+ const unsigned char *pbuf;
/* Extract useful info from parameter */
pbuf = param->value.sequence->data;
salt = pbe->salt->data;
saltlen = pbe->salt->length;
- EVP_DigestInit (&ctx, md);
- EVP_DigestUpdate (&ctx, pass, passlen);
- EVP_DigestUpdate (&ctx, salt, saltlen);
+ if(!pass) passlen = 0;
+ else if(passlen == -1) passlen = strlen(pass);
+
+ EVP_MD_CTX_init(&ctx);
+ EVP_DigestInit_ex(&ctx, md, NULL);
+ EVP_DigestUpdate(&ctx, pass, passlen);
+ EVP_DigestUpdate(&ctx, salt, saltlen);
PBEPARAM_free(pbe);
- EVP_DigestFinal (&ctx, md_tmp, NULL);
+ EVP_DigestFinal_ex(&ctx, md_tmp, NULL);
for (i = 1; i < iter; i++) {
- EVP_DigestInit(&ctx, md);
+ EVP_DigestInit_ex(&ctx, md, NULL);
EVP_DigestUpdate(&ctx, md_tmp, EVP_MD_size(md));
- EVP_DigestFinal (&ctx, md_tmp, NULL);
+ EVP_DigestFinal_ex (&ctx, md_tmp, NULL);
}
- memcpy (key, md_tmp, EVP_CIPHER_key_length(cipher));
- memcpy (iv, md_tmp + (16 - EVP_CIPHER_iv_length(cipher)),
+ EVP_MD_CTX_cleanup(&ctx);
+ OPENSSL_assert(EVP_CIPHER_key_length(cipher) <= (int)sizeof(md_tmp));
+ memcpy(key, md_tmp, EVP_CIPHER_key_length(cipher));
+ OPENSSL_assert(EVP_CIPHER_iv_length(cipher) <= 16);
+ memcpy(iv, md_tmp + (16 - EVP_CIPHER_iv_length(cipher)),
EVP_CIPHER_iv_length(cipher));
- EVP_CipherInit(cctx, cipher, key, iv, en_de);
- memset(md_tmp, 0, EVP_MAX_MD_SIZE);
- memset(key, 0, EVP_MAX_KEY_LENGTH);
- memset(iv, 0, EVP_MAX_IV_LENGTH);
+ EVP_CipherInit_ex(cctx, cipher, NULL, key, iv, en_de);
+ OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE);
+ OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
+ OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
return 1;
}