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-rw-r--r--openssl/crypto/evp/evp_pbe.c137
1 files changed, 137 insertions, 0 deletions
diff --git a/openssl/crypto/evp/evp_pbe.c b/openssl/crypto/evp/evp_pbe.c
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+++ b/openssl/crypto/evp/evp_pbe.c
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+/* evp_pbe.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project 1999.
+ */
+/* ====================================================================
+ * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/evp.h>
+#include <openssl/x509.h>
+
+/* Password based encryption (PBE) functions */
+
+static STACK *pbe_algs;
+
+/* Setup a cipher context from a PBE algorithm */
+
+typedef struct {
+int pbe_nid;
+const EVP_CIPHER *cipher;
+const EVP_MD *md;
+EVP_PBE_KEYGEN *keygen;
+} EVP_PBE_CTL;
+
+int EVP_PBE_CipherInit(ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
+ ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de)
+{
+
+ EVP_PBE_CTL *pbetmp, pbelu;
+ int i;
+ pbelu.pbe_nid = OBJ_obj2nid(pbe_obj);
+ if (pbelu.pbe_nid != NID_undef) i = sk_find(pbe_algs, (char *)&pbelu);
+ else i = -1;
+
+ if (i == -1) {
+ char obj_tmp[80];
+ EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_UNKNOWN_PBE_ALGORITHM);
+ if (!pbe_obj) BUF_strlcpy (obj_tmp, "NULL", sizeof obj_tmp);
+ else i2t_ASN1_OBJECT(obj_tmp, sizeof obj_tmp, pbe_obj);
+ ERR_add_error_data(2, "TYPE=", obj_tmp);
+ return 0;
+ }
+ if(!pass) passlen = 0;
+ else if (passlen == -1) passlen = strlen(pass);
+ pbetmp = (EVP_PBE_CTL *)sk_value (pbe_algs, i);
+ i = (*pbetmp->keygen)(ctx, pass, passlen, param, pbetmp->cipher,
+ pbetmp->md, en_de);
+ if (!i) {
+ EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_KEYGEN_FAILURE);
+ return 0;
+ }
+ return 1;
+}
+
+static int pbe_cmp(const char * const *a, const char * const *b)
+{
+ const EVP_PBE_CTL * const *pbe1 = (const EVP_PBE_CTL * const *) a,
+ * const *pbe2 = (const EVP_PBE_CTL * const *)b;
+ return ((*pbe1)->pbe_nid - (*pbe2)->pbe_nid);
+}
+
+/* Add a PBE algorithm */
+
+int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
+ EVP_PBE_KEYGEN *keygen)
+{
+ EVP_PBE_CTL *pbe_tmp;
+ if (!pbe_algs) pbe_algs = sk_new(pbe_cmp);
+ if (!(pbe_tmp = (EVP_PBE_CTL*) OPENSSL_malloc (sizeof(EVP_PBE_CTL)))) {
+ EVPerr(EVP_F_EVP_PBE_ALG_ADD,ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ pbe_tmp->pbe_nid = nid;
+ pbe_tmp->cipher = cipher;
+ pbe_tmp->md = md;
+ pbe_tmp->keygen = keygen;
+ sk_push (pbe_algs, (char *)pbe_tmp);
+ return 1;
+}
+
+void EVP_PBE_cleanup(void)
+{
+ sk_pop_free(pbe_algs, OPENSSL_freeFunc);
+ pbe_algs = NULL;
+}