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-rw-r--r--third_party/heimdal/lib/krb5/salt-des3.c146
1 files changed, 146 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/krb5/salt-des3.c b/third_party/heimdal/lib/krb5/salt-des3.c
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+++ b/third_party/heimdal/lib/krb5/salt-des3.c
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+/*
+ * Copyright (c) 1997 - 2008 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * 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. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS 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 INSTITUTE OR 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.
+ */
+
+#include "krb5_locl.h"
+
+#ifdef DES3_OLD_ENCTYPE
+static krb5_error_code
+DES3_string_to_key(krb5_context context,
+ krb5_enctype enctype,
+ krb5_data password,
+ krb5_salt salt,
+ krb5_data opaque,
+ krb5_keyblock *key)
+{
+ char *str;
+ size_t len;
+ unsigned char tmp[24];
+ DES_cblock keys[3];
+ krb5_error_code ret;
+
+ len = password.length + salt.saltvalue.length;
+ str = malloc(len);
+ if (len != 0 && str == NULL)
+ return krb5_enomem(context);
+ memcpy(str, password.data, password.length);
+ memcpy(str + password.length, salt.saltvalue.data, salt.saltvalue.length);
+ {
+ DES_cblock ivec;
+ DES_key_schedule s[3];
+ int i;
+
+ ret = _krb5_n_fold(str, len, tmp, 24);
+ if (ret) {
+ memset_s(str, len, 0, len);
+ free(str);
+ krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
+ return ret;
+ }
+
+ for(i = 0; i < 3; i++){
+ memcpy(keys + i, tmp + i * 8, sizeof(keys[i]));
+ DES_set_odd_parity(keys + i);
+ if(DES_is_weak_key(keys + i))
+ _krb5_xor8(*(keys + i), (const unsigned char*)"\0\0\0\0\0\0\0\xf0");
+ DES_set_key_unchecked(keys + i, &s[i]);
+ }
+ memset_s(&ivec, sizeof(ivec), 0, sizeof(ivec));
+ DES_ede3_cbc_encrypt(tmp,
+ tmp, sizeof(tmp),
+ &s[0], &s[1], &s[2], &ivec, DES_ENCRYPT);
+ memset_s(s, sizeof(s), 0, sizeof(s));
+ memset_s(&ivec, sizeof(ivec), 0, sizeof(ivec));
+ for(i = 0; i < 3; i++){
+ memcpy(keys + i, tmp + i * 8, sizeof(keys[i]));
+ DES_set_odd_parity(keys + i);
+ if(DES_is_weak_key(keys + i))
+ _krb5_xor8(*(keys + i), (const unsigned char*)"\0\0\0\0\0\0\0\xf0");
+ }
+ memset_s(tmp, sizeof(tmp), 0, sizeof(tmp));
+ }
+ key->keytype = enctype;
+ krb5_data_copy(&key->keyvalue, keys, sizeof(keys));
+ memset_s(keys, sizeof(keys), 0, sizeof(keys));
+ memset_s(str, len, 0, len);
+ free(str);
+ return 0;
+}
+#endif
+
+static krb5_error_code
+DES3_string_to_key_derived(krb5_context context,
+ krb5_enctype enctype,
+ krb5_data password,
+ krb5_salt salt,
+ krb5_data opaque,
+ krb5_keyblock *key)
+{
+ krb5_error_code ret;
+ size_t len = password.length + salt.saltvalue.length;
+ char *s;
+
+ s = malloc(len);
+ if (len != 0 && s == NULL)
+ return krb5_enomem(context);
+ memcpy(s, password.data, password.length);
+ memcpy(s + password.length, salt.saltvalue.data, salt.saltvalue.length);
+ ret = krb5_string_to_key_derived(context,
+ s,
+ len,
+ enctype,
+ key);
+ memset_s(s, len, 0, len);
+ free(s);
+ return ret;
+}
+
+
+#ifdef DES3_OLD_ENCTYPE
+struct salt_type _krb5_des3_salt[] = {
+ {
+ KRB5_PW_SALT,
+ "pw-salt",
+ DES3_string_to_key
+ },
+ { 0, NULL, NULL }
+};
+#endif
+
+struct salt_type _krb5_des3_salt_derived[] = {
+ {
+ KRB5_PW_SALT,
+ "pw-salt",
+ DES3_string_to_key_derived
+ },
+ { 0, NULL, NULL }
+};